Merge tag 'for-linus-2023022201' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Benjamin Tissoires: - HID-BPF infrastructure: this allows to start using HID-BPF. Note that the mechanism to ship HID-BPF program through the kernel tree is still not implemented yet (but is planned). This should be a no-op for 99% of users. Also we are gaining kselftests for the HID tree (Benjamin Tissoires) - Some UAF fixes in workers when using uhid (Pietro Borrello & Benjamin Tissoires) - Constify hid_ll_driver (Thomas Weißschuh) - Allow more custom IIO sensors through HID (Philipp Jungkamp) - Logitech HID++ fixes for scroll wheel, protocol and debug (Bastien Nocera) - Some new device support: Steam Deck (Vicki Pfau), UClogic (José Expósito), Logitech G923 Xbox Edition steering wheel (Walt Holman), EVision keyboards (Philippe Valembois) - other assorted code cleanups and fixes * tag 'for-linus-2023022201' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (99 commits) HID: mcp-2221: prevent UAF in delayed work hid: bigben_probe(): validate report count HID: asus: use spinlock to safely schedule workers HID: asus: use spinlock to protect concurrent accesses HID: bigben: use spinlock to safely schedule workers HID: bigben_worker() remove unneeded check on report_field HID: bigben: use spinlock to protect concurrent accesses HID: logitech-hidpp: Add myself to authors HID: logitech-hidpp: Retry commands when device is busy HID: logitech-hidpp: Add more debug statements HID: Add support for Logitech G923 Xbox Edition steering wheel HID: logitech-hidpp: Add Signature M650 HID: logitech-hidpp: Remove HIDPP_QUIRK_NO_HIDINPUT quirk HID: logitech-hidpp: Don't restart communication if not necessary HID: logitech-hidpp: Add constants for HID++ 2.0 error codes Revert "HID: logitech-hidpp: add a module parameter to keep firmware gestures" HID: logitech-hidpp: Hard-code HID++ 1.0 fast scroll support HID: i2c-hid: goodix: Add mainboard-vddio-supply dt-bindings: HID: i2c-hid: goodix: Add mainboard-vddio-supply HID: i2c-hid: goodix: Stop tying the reset line to the regulator ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2023-02-22 11:24:42 -0800
committer: Linus Torvalds <torvalds@linux-foundation.org> 2023-02-22 11:24:42 -0800
commit: 6c71297eaf713ece684a367ce9aff06069d715b9 (patch)
tree: da6f4768868ec6c9ba90a89c88fc78560577348f /drivers/hid
parent: d5176cdbf64ce7d4eebf339205f17c23118e9f72 (diff)
parent: 904e28c6de083fa4834cdbd0026470ddc30676fc (diff)
53 files changed, 3066 insertions, 1367 deletions
diff --git a/drivers/hid/.kunitconfig b/drivers/hid/.kunitconfig
index 04daeff5c970..675a8209c7ae 100644
--- a/drivers/hid/.kunitconfig
+++ b/drivers/hid/.kunitconfig
@@ -1,5 +1,6 @@
 CONFIG_KUNIT=y
 CONFIG_USB=y
 CONFIG_USB_HID=y
+CONFIG_HID_BATTERY_STRENGTH=y
 CONFIG_HID_UCLOGIC=y
 CONFIG_HID_KUNIT_TEST=y
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index e2a5d30c8895..82f64fb31fda 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -2,13 +2,20 @@
 #
 # HID driver configuration
 #
-menu "HID support"
-     depends on INPUT
+menuconfig HID_SUPPORT
+	bool "HID bus support"
+	default y
+	depends on INPUT
+	help
+	  This option adds core support for human interface device (HID).
+	  You will also need drivers from the following menu to make use of it.
+
+if HID_SUPPORT
 
 config HID
-	tristate "HID bus support"
-	depends on INPUT
+	tristate "HID bus core support"
 	default y
+	depends on INPUT
 	help
 	  A human interface device (HID) is a type of computer device that
 	  interacts directly with and takes input from humans. The term "HID"
@@ -329,6 +336,13 @@ config HID_ELO
 	Support for the ELO USB 4000/4500 touchscreens. Note that this is for
 	different devices than those handled by CONFIG_TOUCHSCREEN_USB_ELO.
 
+config HID_EVISION
+	tristate "EVision Keyboards Support"
+	depends on HID
+	help
+	Support for some EVision keyboards. Note that this is needed only when
+	applying customization using userspace programs.
+
 config HID_EZKEY
 	tristate "Ezkey BTC 8193 keyboard"
 	default !EXPERT
@@ -1018,13 +1032,21 @@ config HID_SPEEDLINK
 	Support for Speedlink Vicious and Divine Cezanne mouse.
 
 config HID_STEAM
-	tristate "Steam Controller support"
+	tristate "Steam Controller/Deck support"
 	select POWER_SUPPLY
 	help
-	Say Y here if you have a Steam Controller if you want to use it
+	Say Y here if you have a Steam Controller or Deck if you want to use it
 	without running the Steam Client. It supports both the wired and
 	the wireless adaptor.
 
+config STEAM_FF
+	bool "Steam Deck force feedback support"
+	depends on HID_STEAM
+	select INPUT_FF_MEMLESS
+	help
+	Say Y here if you want to enable force feedback support for the Steam
+	Deck.
+
 config HID_STEELSERIES
 	tristate "Steelseries SRW-S1 steering wheel support"
 	help
@@ -1264,6 +1286,7 @@ config HID_MCP2221
 config HID_KUNIT_TEST
 	tristate "KUnit tests for HID" if !KUNIT_ALL_TESTS
 	depends on KUNIT=y
+	depends on HID_BATTERY_STRENGTH
 	depends on HID_UCLOGIC
 	default KUNIT_ALL_TESTS
 	help
@@ -1279,6 +1302,8 @@ config HID_KUNIT_TEST
 
 endmenu
 
+source "drivers/hid/bpf/Kconfig"
+
 endif # HID
 
 source "drivers/hid/usbhid/Kconfig"
@@ -1291,4 +1316,4 @@ source "drivers/hid/amd-sfh-hid/Kconfig"
 
 source "drivers/hid/surface-hid/Kconfig"
 
-endmenu
+endif # HID_SUPPORT
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index e8014c1a2f8b..5d37cacbde33 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -5,6 +5,8 @@
 hid-y			:= hid-core.o hid-input.o hid-quirks.o
 hid-$(CONFIG_DEBUG_FS)		+= hid-debug.o
 
+obj-$(CONFIG_HID_BPF)		+= bpf/
+
 obj-$(CONFIG_HID)		+= hid.o
 obj-$(CONFIG_UHID)		+= uhid.o
 
@@ -45,6 +47,7 @@ obj-$(CONFIG_HID_EMS_FF)	+= hid-emsff.o
 obj-$(CONFIG_HID_ELAN)		+= hid-elan.o
 obj-$(CONFIG_HID_ELECOM)	+= hid-elecom.o
 obj-$(CONFIG_HID_ELO)		+= hid-elo.o
+obj-$(CONFIG_HID_EVISION)	+= hid-evision.o
 obj-$(CONFIG_HID_EZKEY)		+= hid-ezkey.o
 obj-$(CONFIG_HID_FT260)		+= hid-ft260.o
 obj-$(CONFIG_HID_GEMBIRD)	+= hid-gembird.o
diff --git a/drivers/hid/amd-sfh-hid/Kconfig b/drivers/hid/amd-sfh-hid/Kconfig
index db069a83e9a2..af752dd3a340 100644
--- a/drivers/hid/amd-sfh-hid/Kconfig
+++ b/drivers/hid/amd-sfh-hid/Kconfig
@@ -2,10 +2,10 @@
 menu "AMD SFH HID Support"
 	depends on X86_64 || COMPILE_TEST
 	depends on PCI
-	depends on HID
 
 config AMD_SFH_HID
 	tristate "AMD Sensor Fusion Hub"
+	depends on HID
 	help
 	  If you say yes to this option, support will be included for the
 	  AMD Sensor Fusion Hub.
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_hid.c b/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
index 1b18291fc5af..705b52337068 100644
--- a/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
@@ -112,7 +112,7 @@ void amdtp_hid_wakeup(struct hid_device *hid)
 	}
 }
 
-static struct hid_ll_driver amdtp_hid_ll_driver = {
+static const struct hid_ll_driver amdtp_hid_ll_driver = {
 	.parse	=	amdtp_hid_parse,
 	.start	=	amdtp_hid_start,
 	.stop	=	amdtp_hid_stop,
diff --git a/drivers/hid/bpf/Kconfig b/drivers/hid/bpf/Kconfig
new file mode 100644
index 000000000000..83214bae6768
--- /dev/null
+++ b/drivers/hid/bpf/Kconfig
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menu "HID-BPF support"
+
+config HID_BPF
+	bool "HID-BPF support"
+	depends on BPF
+	depends on BPF_SYSCALL
+	depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS
+	help
+	This option allows to support eBPF programs on the HID subsystem.
+	eBPF programs can fix HID devices in a lighter way than a full
+	kernel patch and allow a lot more flexibility.
+
+	For documentation, see Documentation/hid/hid-bpf.rst
+
+endmenu
diff --git a/drivers/hid/bpf/Makefile b/drivers/hid/bpf/Makefile
new file mode 100644
index 000000000000..cf55120cf7d6
--- /dev/null
+++ b/drivers/hid/bpf/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for HID-BPF
+#
+
+LIBBPF_INCLUDE = $(srctree)/tools/lib
+
+obj-$(CONFIG_HID_BPF) += hid_bpf.o
+CFLAGS_hid_bpf_dispatch.o += -I$(LIBBPF_INCLUDE)
+CFLAGS_hid_bpf_jmp_table.o += -I$(LIBBPF_INCLUDE)
+hid_bpf-objs += hid_bpf_dispatch.o hid_bpf_jmp_table.o
diff --git a/drivers/hid/bpf/entrypoints/Makefile b/drivers/hid/bpf/entrypoints/Makefile
new file mode 100644
index 000000000000..a12edcfa4fe3
--- /dev/null
+++ b/drivers/hid/bpf/entrypoints/Makefile
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: GPL-2.0
+OUTPUT := .output
+abs_out := $(abspath $(OUTPUT))
+
+CLANG ?= clang
+LLC ?= llc
+LLVM_STRIP ?= llvm-strip
+
+TOOLS_PATH := $(abspath ../../../../tools)
+BPFTOOL_SRC := $(TOOLS_PATH)/bpf/bpftool
+BPFTOOL_OUTPUT := $(abs_out)/bpftool
+DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)/bootstrap/bpftool
+BPFTOOL ?= $(DEFAULT_BPFTOOL)
+
+LIBBPF_SRC := $(TOOLS_PATH)/lib/bpf
+LIBBPF_OUTPUT := $(abs_out)/libbpf
+LIBBPF_DESTDIR := $(LIBBPF_OUTPUT)
+LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)/include
+BPFOBJ := $(LIBBPF_OUTPUT)/libbpf.a
+
+INCLUDES := -I$(OUTPUT) -I$(LIBBPF_INCLUDE) -I$(TOOLS_PATH)/include/uapi
+CFLAGS := -g -Wall
+
+VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
+		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\
+		     ../../../../vmlinux				\
+		     /sys/kernel/btf/vmlinux				\
+		     /boot/vmlinux-$(shell uname -r)
+VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
+ifeq ($(VMLINUX_BTF),)
+$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
+endif
+
+ifeq ($(V),1)
+Q =
+msg =
+else
+Q = @
+msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
+MAKEFLAGS += --no-print-directory
+submake_extras := feature_display=0
+endif
+
+.DELETE_ON_ERROR:
+
+.PHONY: all clean
+
+all: entrypoints.lskel.h
+
+clean:
+	$(call msg,CLEAN)
+	$(Q)rm -rf $(OUTPUT) entrypoints
+
+entrypoints.lskel.h: $(OUTPUT)/entrypoints.bpf.o | $(BPFTOOL)
+	$(call msg,GEN-SKEL,$@)
+	$(Q)$(BPFTOOL) gen skeleton -L $< > $@
+
+
+$(OUTPUT)/entrypoints.bpf.o: entrypoints.bpf.c $(OUTPUT)/vmlinux.h $(BPFOBJ) | $(OUTPUT)
+	$(call msg,BPF,$@)
+	$(Q)$(CLANG) -g -O2 -target bpf $(INCLUDES)			      \
+		 -c $(filter %.c,$^) -o $@ &&				      \
+	$(LLVM_STRIP) -g $@
+
+$(OUTPUT)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
+ifeq ($(VMLINUX_H),)
+	$(call msg,GEN,,$@)
+	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
+else
+	$(call msg,CP,,$@)
+	$(Q)cp "$(VMLINUX_H)" $@
+endif
+
+$(OUTPUT) $(LIBBPF_OUTPUT) $(BPFTOOL_OUTPUT):
+	$(call msg,MKDIR,$@)
+	$(Q)mkdir -p $@
+
+$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OUTPUT)
+	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)			       \
+		    OUTPUT=$(abspath $(dir $@))/ prefix=		       \
+		    DESTDIR=$(LIBBPF_DESTDIR) $(abspath $@) install_headers
+
+ifeq ($(CROSS_COMPILE),)
+$(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BPFTOOL_OUTPUT)
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFTOOL_SRC)			       \
+		    OUTPUT=$(BPFTOOL_OUTPUT)/				       \
+		    LIBBPF_BOOTSTRAP_OUTPUT=$(LIBBPF_OUTPUT)/		       \
+		    LIBBPF_BOOTSTRAP_DESTDIR=$(LIBBPF_DESTDIR)/ bootstrap
+else
+$(DEFAULT_BPFTOOL): | $(BPFTOOL_OUTPUT)
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFTOOL_SRC)			       \
+		    OUTPUT=$(BPFTOOL_OUTPUT)/ bootstrap
+endif
diff --git a/drivers/hid/bpf/entrypoints/README b/drivers/hid/bpf/entrypoints/README
new file mode 100644
index 000000000000..147e0d41509f
--- /dev/null
+++ b/drivers/hid/bpf/entrypoints/README
@@ -0,0 +1,4 @@
+WARNING:
+If you change "entrypoints.bpf.c" do "make -j" in this directory to rebuild "entrypoints.skel.h".
+Make sure to have clang 10 installed.
+See Documentation/bpf/bpf_devel_QA.rst
diff --git a/drivers/hid/bpf/entrypoints/entrypoints.bpf.c b/drivers/hid/bpf/entrypoints/entrypoints.bpf.c
new file mode 100644
index 000000000000..c22921125a1a
--- /dev/null
+++ b/drivers/hid/bpf/entrypoints/entrypoints.bpf.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Benjamin Tissoires */
+
+#include ".output/vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define HID_BPF_MAX_PROGS 1024
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, HID_BPF_MAX_PROGS);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} hid_jmp_table SEC(".maps");
+
+SEC("fmod_ret/__hid_bpf_tail_call")
+int BPF_PROG(hid_tail_call, struct hid_bpf_ctx *hctx)
+{
+	bpf_tail_call(ctx, &hid_jmp_table, hctx->index);
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/drivers/hid/bpf/entrypoints/entrypoints.lskel.h b/drivers/hid/bpf/entrypoints/entrypoints.lskel.h
new file mode 100644
index 000000000000..35618051598c
--- /dev/null
+++ b/drivers/hid/bpf/entrypoints/entrypoints.lskel.h
@@ -0,0 +1,248 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+/* THIS FILE IS AUTOGENERATED BY BPFTOOL! */
+#ifndef __ENTRYPOINTS_BPF_SKEL_H__
+#define __ENTRYPOINTS_BPF_SKEL_H__
+
+#include <bpf/skel_internal.h>
+
+struct entrypoints_bpf {
+	struct bpf_loader_ctx ctx;
+	struct {
+		struct bpf_map_desc hid_jmp_table;
+	} maps;
+	struct {
+		struct bpf_prog_desc hid_tail_call;
+	} progs;
+	struct {
+		int hid_tail_call_fd;
+	} links;
+};
+
+static inline int
+entrypoints_bpf__hid_tail_call__attach(struct entrypoints_bpf *skel)
+{
+	int prog_fd = skel->progs.hid_tail_call.prog_fd;
+	int fd = skel_raw_tracepoint_open(NULL, prog_fd);
+
+	if (fd > 0)
+		skel->links.hid_tail_call_fd = fd;
+	return fd;
+}
+
+static inline int
+entrypoints_bpf__attach(struct entrypoints_bpf *skel)
+{
+	int ret = 0;
+
+	ret = ret < 0 ? ret : entrypoints_bpf__hid_tail_call__attach(skel);
+	return ret < 0 ? ret : 0;
+}
+
+static inline void
+entrypoints_bpf__detach(struct entrypoints_bpf *skel)
+{
+	skel_closenz(skel->links.hid_tail_call_fd);
+}
+static void
+entrypoints_bpf__destroy(struct entrypoints_bpf *skel)
+{
+	if (!skel)
+		return;
+	entrypoints_bpf__detach(skel);
+	skel_closenz(skel->progs.hid_tail_call.prog_fd);
+	skel_closenz(skel->maps.hid_jmp_table.map_fd);
+	skel_free(skel);
+}
+static inline struct entrypoints_bpf *
+entrypoints_bpf__open(void)
+{
+	struct entrypoints_bpf *skel;
+
+	skel = skel_alloc(sizeof(*skel));
+	if (!skel)
+		goto cleanup;
+	skel->ctx.sz = (void *)&skel->links - (void *)skel;
+	return skel;
+cleanup:
+	entrypoints_bpf__destroy(skel);
+	return NULL;
+}
+
+static inline int
+entrypoints_bpf__load(struct entrypoints_bpf *skel)
+{
+	struct bpf_load_and_run_opts opts = {};
+	int err;
+
+	opts.ctx = (struct bpf_loader_ctx *)skel;
+	opts.data_sz = 2856;
+	opts.data = (void *)"\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
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+	opts.insns_sz = 1192;
+	opts.insns = (void *)"\
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+\0\0\x63\x7a\x80\xff\0\0\0\0\x61\xa1\x78\xff\0\0\0\0\xd5\x01\x02\0\0\0\0\0\xbf\
+\x19\0\0\0\0\0\0\x85\0\0\0\xa8\0\0\0\x61\xa0\x80\xff\0\0\0\0\x63\x06\x28\0\0\0\
+\0\0\x18\x61\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x61\x10\0\0\0\0\0\0\x63\x06\x18\0\0\0\
+\0\0\xb7\0\0\0\0\0\0\0\x95\0\0\0\0\0\0\0";
+	err = bpf_load_and_run(&opts);
+	if (err < 0)
+		return err;
+	return 0;
+}
+
+static inline struct entrypoints_bpf *
+entrypoints_bpf__open_and_load(void)
+{
+	struct entrypoints_bpf *skel;
+
+	skel = entrypoints_bpf__open();
+	if (!skel)
+		return NULL;
+	if (entrypoints_bpf__load(skel)) {
+		entrypoints_bpf__destroy(skel);
+		return NULL;
+	}
+	return skel;
+}
+
+__attribute__((unused)) static void
+entrypoints_bpf__assert(struct entrypoints_bpf *s __attribute__((unused)))
+{
+#ifdef __cplusplus
+#define _Static_assert static_assert
+#endif
+#ifdef __cplusplus
+#undef _Static_assert
+#endif
+}
+
+#endif /* __ENTRYPOINTS_BPF_SKEL_H__ */
diff --git a/drivers/hid/bpf/hid_bpf_dispatch.c b/drivers/hid/bpf/hid_bpf_dispatch.c
new file mode 100644
index 000000000000..8a034a555d4c
--- /dev/null
+++ b/drivers/hid/bpf/hid_bpf_dispatch.c
@@ -0,0 +1,551 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ *  HID-BPF support for Linux
+ *
+ *  Copyright (c) 2022 Benjamin Tissoires
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/bitops.h>
+#include <linux/btf.h>
+#include <linux/btf_ids.h>
+#include <linux/filter.h>
+#include <linux/hid.h>
+#include <linux/hid_bpf.h>
+#include <linux/init.h>
+#include <linux/kfifo.h>
+#include <linux/minmax.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include "hid_bpf_dispatch.h"
+#include "entrypoints/entrypoints.lskel.h"
+
+struct hid_bpf_ops *hid_bpf_ops;
+EXPORT_SYMBOL(hid_bpf_ops);
+
+/**
+ * hid_bpf_device_event - Called whenever an event is coming in from the device
+ *
+ * @ctx: The HID-BPF context
+ *
+ * @return %0 on success and keep processing; a positive value to change the
+ * incoming size buffer; a negative error code to interrupt the processing
+ * of this event
+ *
+ * Declare an %fmod_ret tracing bpf program to this function and attach this
+ * program through hid_bpf_attach_prog() to have this helper called for
+ * any incoming event from the device itself.
+ *
+ * The function is called while on IRQ context, so we can not sleep.
+ */
+/* never used by the kernel but declared so we can load and attach a tracepoint */
+__weak noinline int hid_bpf_device_event(struct hid_bpf_ctx *ctx)
+{
+	return 0;
+}
+
+u8 *
+dispatch_hid_bpf_device_event(struct hid_device *hdev, enum hid_report_type type, u8 *data,
+			      u32 *size, int interrupt)
+{
+	struct hid_bpf_ctx_kern ctx_kern = {
+		.ctx = {
+			.hid = hdev,
+			.report_type = type,
+			.allocated_size = hdev->bpf.allocated_data,
+			.size = *size,
+		},
+		.data = hdev->bpf.device_data,
+	};
+	int ret;
+
+	if (type >= HID_REPORT_TYPES)
+		return ERR_PTR(-EINVAL);
+
+	/* no program has been attached yet */
+	if (!hdev->bpf.device_data)
+		return data;
+
+	memset(ctx_kern.data, 0, hdev->bpf.allocated_data);
+	memcpy(ctx_kern.data, data, *size);
+
+	ret = hid_bpf_prog_run(hdev, HID_BPF_PROG_TYPE_DEVICE_EVENT, &ctx_kern);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	if (ret) {
+		if (ret > ctx_kern.ctx.allocated_size)
+			return ERR_PTR(-EINVAL);
+
+		*size = ret;
+	}
+
+	return ctx_kern.data;
+}
+EXPORT_SYMBOL_GPL(dispatch_hid_bpf_device_event);
+
+/**
+ * hid_bpf_rdesc_fixup - Called when the probe function parses the report
+ * descriptor of the HID device
+ *
+ * @ctx: The HID-BPF context
+ *
+ * @return 0 on success and keep processing; a positive value to change the
+ * incoming size buffer; a negative error code to interrupt the processing
+ * of this event
+ *
+ * Declare an %fmod_ret tracing bpf program to this function and attach this
+ * program through hid_bpf_attach_prog() to have this helper called before any
+ * parsing of the report descriptor by HID.
+ */
+/* never used by the kernel but declared so we can load and attach a tracepoint */
+__weak noinline int hid_bpf_rdesc_fixup(struct hid_bpf_ctx *ctx)
+{
+	return 0;
+}
+
+u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, u8 *rdesc, unsigned int *size)
+{
+	int ret;
+	struct hid_bpf_ctx_kern ctx_kern = {
+		.ctx = {
+			.hid = hdev,
+			.size = *size,
+			.allocated_size = HID_MAX_DESCRIPTOR_SIZE,
+		},
+	};
+
+	ctx_kern.data = kzalloc(ctx_kern.ctx.allocated_size, GFP_KERNEL);
+	if (!ctx_kern.data)
+		goto ignore_bpf;
+
+	memcpy(ctx_kern.data, rdesc, min_t(unsigned int, *size, HID_MAX_DESCRIPTOR_SIZE));
+
+	ret = hid_bpf_prog_run(hdev, HID_BPF_PROG_TYPE_RDESC_FIXUP, &ctx_kern);
+	if (ret < 0)
+		goto ignore_bpf;
+
+	if (ret) {
+		if (ret > ctx_kern.ctx.allocated_size)
+			goto ignore_bpf;
+
+		*size = ret;
+	}
+
+	rdesc = krealloc(ctx_kern.data, *size, GFP_KERNEL);
+
+	return rdesc;
+
+ ignore_bpf:
+	kfree(ctx_kern.data);
+	return kmemdup(rdesc, *size, GFP_KERNEL);
+}
+EXPORT_SYMBOL_GPL(call_hid_bpf_rdesc_fixup);
+
+/**
+ * hid_bpf_get_data - Get the kernel memory pointer associated with the context @ctx
+ *
+ * @ctx: The HID-BPF context
+ * @offset: The offset within the memory
+ * @rdwr_buf_size: the const size of the buffer
+ *
+ * @returns %NULL on error, an %__u8 memory pointer on success
+ */
+noinline __u8 *
+hid_bpf_get_data(struct hid_bpf_ctx *ctx, unsigned int offset, const size_t rdwr_buf_size)
+{
+	struct hid_bpf_ctx_kern *ctx_kern;
+
+	if (!ctx)
+		return NULL;
+
+	ctx_kern = container_of(ctx, struct hid_bpf_ctx_kern, ctx);
+
+	if (rdwr_buf_size + offset > ctx->allocated_size)
+		return NULL;
+
+	return ctx_kern->data + offset;
+}
+
+/*
+ * The following set contains all functions we agree BPF programs
+ * can use.
+ */
+BTF_SET8_START(hid_bpf_kfunc_ids)
+BTF_ID_FLAGS(func, hid_bpf_get_data, KF_RET_NULL)
+BTF_SET8_END(hid_bpf_kfunc_ids)
+
+static const struct btf_kfunc_id_set hid_bpf_kfunc_set = {
+	.owner = THIS_MODULE,
+	.set   = &hid_bpf_kfunc_ids,
+};
+
+static int device_match_id(struct device *dev, const void *id)
+{
+	struct hid_device *hdev = to_hid_device(dev);
+
+	return hdev->id == *(int *)id;
+}
+
+static int __hid_bpf_allocate_data(struct hid_device *hdev, u8 **data, u32 *size)
+{
+	u8 *alloc_data;
+	unsigned int i, j, max_report_len = 0;
+	size_t alloc_size = 0;
+
+	/* compute the maximum report length for this device */
+	for (i = 0; i < HID_REPORT_TYPES; i++) {
+		struct hid_report_enum *report_enum = hdev->report_enum + i;
+
+		for (j = 0; j < HID_MAX_IDS; j++) {
+			struct hid_report *report = report_enum->report_id_hash[j];
+
+			if (report)
+				max_report_len = max(max_report_len, hid_report_len(report));
+		}
+	}
+
+	/*
+	 * Give us a little bit of extra space and some predictability in the
+	 * buffer length we create. This way, we can tell users that they can
+	 * work on chunks of 64 bytes of memory without having the bpf verifier
+	 * scream at them.
+	 */
+	alloc_size = DIV_ROUND_UP(max_report_len, 64) * 64;
+
+	alloc_data = kzalloc(alloc_size, GFP_KERNEL);
+	if (!alloc_data)
+		return -ENOMEM;
+
+	*data = alloc_data;
+	*size = alloc_size;
+
+	return 0;
+}
+
+static int hid_bpf_allocate_event_data(struct hid_device *hdev)
+{
+	/* hdev->bpf.device_data is already allocated, abort */
+	if (hdev->bpf.device_data)
+		return 0;
+
+	return __hid_bpf_allocate_data(hdev, &hdev->bpf.device_data, &hdev->bpf.allocated_data);
+}
+
+int hid_bpf_reconnect(struct hid_device *hdev)
+{
+	if (!test_and_set_bit(ffs(HID_STAT_REPROBED), &hdev->status))
+		return device_reprobe(&hdev->dev);
+
+	return 0;
+}
+
+/**
+ * hid_bpf_attach_prog - Attach the given @prog_fd to the given HID device
+ *
+ * @hid_id: the system unique identifier of the HID device
+ * @prog_fd: an fd in the user process representing the program to attach
+ * @flags: any logical OR combination of &enum hid_bpf_attach_flags
+ *
+ * @returns an fd of a bpf_link object on success (> %0), an error code otherwise.
+ * Closing this fd will detach the program from the HID device (unless the bpf_link
+ * is pinned to the BPF file system).
+ */
+/* called from syscall */
+noinline int
+hid_bpf_attach_prog(unsigned int hid_id, int prog_fd, __u32 flags)
+{
+	struct hid_device *hdev;
+	struct device *dev;
+	int fd, err, prog_type = hid_bpf_get_prog_attach_type(prog_fd);
+
+	if (!hid_bpf_ops)
+		return -EINVAL;
+
+	if (prog_type < 0)
+		return prog_type;
+
+	if (prog_type >= HID_BPF_PROG_TYPE_MAX)
+		return -EINVAL;
+
+	if ((flags & ~HID_BPF_FLAG_MASK))
+		return -EINVAL;
+
+	dev = bus_find_device(hid_bpf_ops->bus_type, NULL, &hid_id, device_match_id);
+	if (!dev)
+		return -EINVAL;
+
+	hdev = to_hid_device(dev);
+
+	if (prog_type == HID_BPF_PROG_TYPE_DEVICE_EVENT) {
+		err = hid_bpf_allocate_event_data(hdev);
+		if (err)
+			return err;
+	}
+
+	fd = __hid_bpf_attach_prog(hdev, prog_type, prog_fd, flags);
+	if (fd < 0)
+		return fd;
+
+	if (prog_type == HID_BPF_PROG_TYPE_RDESC_FIXUP) {
+		err = hid_bpf_reconnect(hdev);
+		if (err) {
+			close_fd(fd);
+			return err;
+		}
+	}
+
+	return fd;
+}
+
+/**
+ * hid_bpf_allocate_context - Allocate a context to the given HID device
+ *
+ * @hid_id: the system unique identifier of the HID device
+ *
+ * @returns A pointer to &struct hid_bpf_ctx on success, %NULL on error.
+ */
+noinline struct hid_bpf_ctx *
+hid_bpf_allocate_context(unsigned int hid_id)
+{
+	struct hid_device *hdev;
+	struct hid_bpf_ctx_kern *ctx_kern = NULL;
+	struct device *dev;
+
+	if (!hid_bpf_ops)
+		return NULL;
+
+	dev = bus_find_device(hid_bpf_ops->bus_type, NULL, &hid_id, device_match_id);
+	if (!dev)
+		return NULL;
+
+	hdev = to_hid_device(dev);
+
+	ctx_kern = kzalloc(sizeof(*ctx_kern), GFP_KERNEL);
+	if (!ctx_kern)
+		return NULL;
+
+	ctx_kern->ctx.hid = hdev;
+
+	return &ctx_kern->ctx;
+}
+
+/**
+ * hid_bpf_release_context - Release the previously allocated context @ctx
+ *
+ * @ctx: the HID-BPF context to release
+ *
+ */
+noinline void
+hid_bpf_release_context(struct hid_bpf_ctx *ctx)
+{
+	struct hid_bpf_ctx_kern *ctx_kern;
+
+	if (!ctx)
+		return;
+
+	ctx_kern = container_of(ctx, struct hid_bpf_ctx_kern, ctx);
+
+	kfree(ctx_kern);
+}
+
+/**
+ * hid_bpf_hw_request - Communicate with a HID device
+ *
+ * @ctx: the HID-BPF context previously allocated in hid_bpf_allocate_context()
+ * @buf: a %PTR_TO_MEM buffer
+ * @buf__sz: the size of the data to transfer
+ * @rtype: the type of the report (%HID_INPUT_REPORT, %HID_FEATURE_REPORT, %HID_OUTPUT_REPORT)
+ * @reqtype: the type of the request (%HID_REQ_GET_REPORT, %HID_REQ_SET_REPORT, ...)
+ *
+ * @returns %0 on success, a negative error code otherwise.
+ */
+noinline int
+hid_bpf_hw_request(struct hid_bpf_ctx *ctx, __u8 *buf, size_t buf__sz,
+		   enum hid_report_type rtype, enum hid_class_request reqtype)
+{
+	struct hid_device *hdev;
+	struct hid_report *report;
+	struct hid_report_enum *report_enum;
+	u8 *dma_data;
+	u32 report_len;
+	int ret;
+
+	/* check arguments */
+	if (!ctx || !hid_bpf_ops || !buf)
+		return -EINVAL;
+
+	switch (rtype) {
+	case HID_INPUT_REPORT:
+	case HID_OUTPUT_REPORT:
+	case HID_FEATURE_REPORT:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (reqtype) {
+	case HID_REQ_GET_REPORT:
+	case HID_REQ_GET_IDLE:
+	case HID_REQ_GET_PROTOCOL:
+	case HID_REQ_SET_REPORT:
+	case HID_REQ_SET_IDLE:
+	case HID_REQ_SET_PROTOCOL:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (buf__sz < 1)
+		return -EINVAL;
+
+	hdev = (struct hid_device *)ctx->hid; /* discard const */
+
+	report_enum = hdev->report_enum + rtype;
+	report = hid_bpf_ops->hid_get_report(report_enum, buf);
+	if (!report)
+		return -EINVAL;
+
+	report_len = hid_report_len(report);
+
+	if (buf__sz > report_len)
+		buf__sz = report_len;
+
+	dma_data = kmemdup(buf, buf__sz, GFP_KERNEL);
+	if (!dma_data)
+		return -ENOMEM;
+
+	ret = hid_bpf_ops->hid_hw_raw_request(hdev,
+					      dma_data[0],
+					      dma_data,
+					      buf__sz,
+					      rtype,
+					      reqtype);
+
+	if (ret > 0)
+		memcpy(buf, dma_data, ret);
+
+	kfree(dma_data);
+	return ret;
+}
+
+/* our HID-BPF entrypoints */
+BTF_SET8_START(hid_bpf_fmodret_ids)
+BTF_ID_FLAGS(func, hid_bpf_device_event)
+BTF_ID_FLAGS(func, hid_bpf_rdesc_fixup)
+BTF_ID_FLAGS(func, __hid_bpf_tail_call)
+BTF_SET8_END(hid_bpf_fmodret_ids)
+
+static const struct btf_kfunc_id_set hid_bpf_fmodret_set = {
+	.owner = THIS_MODULE,
+	.set   = &hid_bpf_fmodret_ids,
+};
+
+/* for syscall HID-BPF */
+BTF_SET8_START(hid_bpf_syscall_kfunc_ids)
+BTF_ID_FLAGS(func, hid_bpf_attach_prog)
+BTF_ID_FLAGS(func, hid_bpf_allocate_context, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, hid_bpf_release_context, KF_RELEASE)
+BTF_ID_FLAGS(func, hid_bpf_hw_request)
+BTF_SET8_END(hid_bpf_syscall_kfunc_ids)
+
+static const struct btf_kfunc_id_set hid_bpf_syscall_kfunc_set = {
+	.owner = THIS_MODULE,
+	.set   = &hid_bpf_syscall_kfunc_ids,
+};
+
+int hid_bpf_connect_device(struct hid_device *hdev)
+{
+	struct hid_bpf_prog_list *prog_list;
+
+	rcu_read_lock();
+	prog_list = rcu_dereference(hdev->bpf.progs[HID_BPF_PROG_TYPE_DEVICE_EVENT]);
+	rcu_read_unlock();
+
+	/* only allocate BPF data if there are programs attached */
+	if (!prog_list)
+		return 0;
+
+	return hid_bpf_allocate_event_data(hdev);
+}
+EXPORT_SYMBOL_GPL(hid_bpf_connect_device);
+
+void hid_bpf_disconnect_device(struct hid_device *hdev)
+{
+	kfree(hdev->bpf.device_data);
+	hdev->bpf.device_data = NULL;
+	hdev->bpf.allocated_data = 0;
+}
+EXPORT_SYMBOL_GPL(hid_bpf_disconnect_device);
+
+void hid_bpf_destroy_device(struct hid_device *hdev)
+{
+	if (!hdev)
+		return;
+
+	/* mark the device as destroyed in bpf so we don't reattach it */
+	hdev->bpf.destroyed = true;
+
+	__hid_bpf_destroy_device(hdev);
+}
+EXPORT_SYMBOL_GPL(hid_bpf_destroy_device);
+
+void hid_bpf_device_init(struct hid_device *hdev)
+{
+	spin_lock_init(&hdev->bpf.progs_lock);
+}
+EXPORT_SYMBOL_GPL(hid_bpf_device_init);
+
+static int __init hid_bpf_init(void)
+{
+	int err;
+
+	/* Note: if we exit with an error any time here, we would entirely break HID, which
+	 * is probably not something we want. So we log an error and return success.
+	 *
+	 * This is not a big deal: the syscall allowing to attach a BPF program to a HID device
+	 * will not be available, so nobody will be able to use the functionality.
+	 */
+
+	err = register_btf_fmodret_id_set(&hid_bpf_fmodret_set);
+	if (err) {
+		pr_warn("error while registering fmodret entrypoints: %d", err);
+		return 0;
+	}
+
+	err = hid_bpf_preload_skel();
+	if (err) {
+		pr_warn("error while preloading HID BPF dispatcher: %d", err);
+		return 0;
+	}
+
+	/* register tracing kfuncs after we are sure we can load our preloaded bpf program */
+	err = register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &hid_bpf_kfunc_set);
+	if (err) {
+		pr_warn("error while setting HID BPF tracing kfuncs: %d", err);
+		return 0;
+	}
+
+	/* register syscalls after we are sure we can load our preloaded bpf program */
+	err = register_btf_kfunc_id_set(BPF_PROG_TYPE_SYSCALL, &hid_bpf_syscall_kfunc_set);
+	if (err) {
+		pr_warn("error while setting HID BPF syscall kfuncs: %d", err);
+		return 0;
+	}
+
+	return 0;
+}
+
+static void __exit hid_bpf_exit(void)
+{
+	/* HID depends on us, so if we hit that code, we are guaranteed that hid
+	 * has been removed and thus we do not need to clear the HID devices
+	 */
+	hid_bpf_free_links_and_skel();
+}
+
+late_initcall(hid_bpf_init);
+module_exit(hid_bpf_exit);
+MODULE_AUTHOR("Benjamin Tissoires");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/bpf/hid_bpf_dispatch.h b/drivers/hid/bpf/hid_bpf_dispatch.h
new file mode 100644
index 000000000000..63dfc8605cd2
--- /dev/null
+++ b/drivers/hid/bpf/hid_bpf_dispatch.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _BPF_HID_BPF_DISPATCH_H
+#define _BPF_HID_BPF_DISPATCH_H
+
+#include <linux/hid.h>
+
+struct hid_bpf_ctx_kern {
+	struct hid_bpf_ctx ctx;
+	u8 *data;
+};
+
+int hid_bpf_preload_skel(void);
+void hid_bpf_free_links_and_skel(void);
+int hid_bpf_get_prog_attach_type(int prog_fd);
+int __hid_bpf_attach_prog(struct hid_device *hdev, enum hid_bpf_prog_type prog_type, int prog_fd,
+			  __u32 flags);
+void __hid_bpf_destroy_device(struct hid_device *hdev);
+int hid_bpf_prog_run(struct hid_device *hdev, enum hid_bpf_prog_type type,
+		     struct hid_bpf_ctx_kern *ctx_kern);
+int hid_bpf_reconnect(struct hid_device *hdev);
+
+struct bpf_prog;
+
+#endif
diff --git a/drivers/hid/bpf/hid_bpf_jmp_table.c b/drivers/hid/bpf/hid_bpf_jmp_table.c
new file mode 100644
index 000000000000..eca34b7372f9
--- /dev/null
+++ b/drivers/hid/bpf/hid_bpf_jmp_table.c
@@ -0,0 +1,565 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ *  HID-BPF support for Linux
+ *
+ *  Copyright (c) 2022 Benjamin Tissoires
+ */
+
+#include <linux/bitops.h>
+#include <linux/btf.h>
+#include <linux/btf_ids.h>
+#include <linux/circ_buf.h>
+#include <linux/filter.h>
+#include <linux/hid.h>
+#include <linux/hid_bpf.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include "hid_bpf_dispatch.h"
+#include "entrypoints/entrypoints.lskel.h"
+
+#define HID_BPF_MAX_PROGS 1024 /* keep this in sync with preloaded bpf,
+				* needs to be a power of 2 as we use it as
+				* a circular buffer
+				*/
+
+#define NEXT(idx) (((idx) + 1) & (HID_BPF_MAX_PROGS - 1))
+#define PREV(idx) (((idx) - 1) & (HID_BPF_MAX_PROGS - 1))
+
+/*
+ * represents one attached program stored in the hid jump table
+ */
+struct hid_bpf_prog_entry {
+	struct bpf_prog *prog;
+	struct hid_device *hdev;
+	enum hid_bpf_prog_type type;
+	u16 idx;
+};
+
+struct hid_bpf_jmp_table {
+	struct bpf_map *map;
+	struct hid_bpf_prog_entry entries[HID_BPF_MAX_PROGS]; /* compacted list, circular buffer */
+	int tail, head;
+	struct bpf_prog *progs[HID_BPF_MAX_PROGS]; /* idx -> progs mapping */
+	unsigned long enabled[BITS_TO_LONGS(HID_BPF_MAX_PROGS)];
+};
+
+#define FOR_ENTRIES(__i, __start, __end) \
+	for (__i = __start; CIRC_CNT(__end, __i, HID_BPF_MAX_PROGS); __i = NEXT(__i))
+
+static struct hid_bpf_jmp_table jmp_table;
+
+static DEFINE_MUTEX(hid_bpf_attach_lock);		/* held when attaching/detaching programs */
+
+static void hid_bpf_release_progs(struct work_struct *work);
+
+static DECLARE_WORK(release_work, hid_bpf_release_progs);
+
+BTF_ID_LIST(hid_bpf_btf_ids)
+BTF_ID(func, hid_bpf_device_event)			/* HID_BPF_PROG_TYPE_DEVICE_EVENT */
+BTF_ID(func, hid_bpf_rdesc_fixup)			/* HID_BPF_PROG_TYPE_RDESC_FIXUP */
+
+static int hid_bpf_max_programs(enum hid_bpf_prog_type type)
+{
+	switch (type) {
+	case HID_BPF_PROG_TYPE_DEVICE_EVENT:
+		return HID_BPF_MAX_PROGS_PER_DEV;
+	case HID_BPF_PROG_TYPE_RDESC_FIXUP:
+		return 1;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int hid_bpf_program_count(struct hid_device *hdev,
+				 struct bpf_prog *prog,
+				 enum hid_bpf_prog_type type)
+{
+	int i, n = 0;
+
+	if (type >= HID_BPF_PROG_TYPE_MAX)
+		return -EINVAL;
+
+	FOR_ENTRIES(i, jmp_table.tail, jmp_table.head) {
+		struct hid_bpf_prog_entry *entry = &jmp_table.entries[i];
+
+		if (type != HID_BPF_PROG_TYPE_UNDEF && entry->type != type)
+			continue;
+
+		if (hdev && entry->hdev != hdev)
+			continue;
+
+		if (prog && entry->prog != prog)
+			continue;
+
+		n++;
+	}
+
+	return n;
+}
+
+__weak noinline int __hid_bpf_tail_call(struct hid_bpf_ctx *ctx)
+{
+	return 0;
+}
+
+int hid_bpf_prog_run(struct hid_device *hdev, enum hid_bpf_prog_type type,
+		     struct hid_bpf_ctx_kern *ctx_kern)
+{
+	struct hid_bpf_prog_list *prog_list;
+	int i, idx, err = 0;
+
+	rcu_read_lock();
+	prog_list = rcu_dereference(hdev->bpf.progs[type]);
+
+	if (!prog_list)
+		goto out_unlock;
+
+	for (i = 0; i < prog_list->prog_cnt; i++) {
+		idx = prog_list->prog_idx[i];
+
+		if (!test_bit(idx, jmp_table.enabled))
+			continue;
+
+		ctx_kern->ctx.index = idx;
+		err = __hid_bpf_tail_call(&ctx_kern->ctx);
+		if (err < 0)
+			break;
+		if (err)
+			ctx_kern->ctx.retval = err;
+	}
+
+ out_unlock:
+	rcu_read_unlock();
+
+	return err;
+}
+
+/*
+ * assign the list of programs attached to a given hid device.
+ */
+static void __hid_bpf_set_hdev_progs(struct hid_device *hdev, struct hid_bpf_prog_list *new_list,
+				     enum hid_bpf_prog_type type)
+{
+	struct hid_bpf_prog_list *old_list;
+
+	spin_lock(&hdev->bpf.progs_lock);
+	old_list = rcu_dereference_protected(hdev->bpf.progs[type],
+					     lockdep_is_held(&hdev->bpf.progs_lock));
+	rcu_assign_pointer(hdev->bpf.progs[type], new_list);
+	spin_unlock(&hdev->bpf.progs_lock);
+	synchronize_rcu();
+
+	kfree(old_list);
+}
+
+/*
+ * allocate and populate the list of programs attached to a given hid device.
+ *
+ * Must be called under lock.
+ */
+static int hid_bpf_populate_hdev(struct hid_device *hdev, enum hid_bpf_prog_type type)
+{
+	struct hid_bpf_prog_list *new_list;
+	int i;
+
+	if (type >= HID_BPF_PROG_TYPE_MAX || !hdev)
+		return -EINVAL;
+
+	if (hdev->bpf.destroyed)
+		return 0;
+
+	new_list = kzalloc(sizeof(*new_list), GFP_KERNEL);
+	if (!new_list)
+		return -ENOMEM;
+
+	FOR_ENTRIES(i, jmp_table.tail, jmp_table.head) {
+		struct hid_bpf_prog_entry *entry = &jmp_table.entries[i];
+
+		if (entry->type == type && entry->hdev == hdev &&
+		    test_bit(entry->idx, jmp_table.enabled))
+			new_list->prog_idx[new_list->prog_cnt++] = entry->idx;
+	}
+
+	__hid_bpf_set_hdev_progs(hdev, new_list, type);
+
+	return 0;
+}
+
+static void __hid_bpf_do_release_prog(int map_fd, unsigned int idx)
+{
+	skel_map_delete_elem(map_fd, &idx);
+	jmp_table.progs[idx] = NULL;
+}
+
+static void hid_bpf_release_progs(struct work_struct *work)
+{
+	int i, j, n, map_fd = -1;
+
+	if (!jmp_table.map)
+		return;
+
+	/* retrieve a fd of our prog_array map in BPF */
+	map_fd = skel_map_get_fd_by_id(jmp_table.map->id);
+	if (map_fd < 0)
+		return;
+
+	mutex_lock(&hid_bpf_attach_lock); /* protects against attaching new programs */
+
+	/* detach unused progs from HID devices */
+	FOR_ENTRIES(i, jmp_table.tail, jmp_table.head) {
+		struct hid_bpf_prog_entry *entry = &jmp_table.entries[i];
+		enum hid_bpf_prog_type type;
+		struct hid_device *hdev;
+
+		if (test_bit(entry->idx, jmp_table.enabled))
+			continue;
+
+		/* we have an attached prog */
+		if (entry->hdev) {
+			hdev = entry->hdev;
+			type = entry->type;
+
+			hid_bpf_populate_hdev(hdev, type);
+
+			/* mark all other disabled progs from hdev of the given type as detached */
+			FOR_ENTRIES(j, i, jmp_table.head) {
+				struct hid_bpf_prog_entry *next;
+
+				next = &jmp_table.entries[j];
+
+				if (test_bit(next->idx, jmp_table.enabled))
+					continue;
+
+				if (next->hdev == hdev && next->type == type)
+					next->hdev = NULL;
+			}
+
+			/* if type was rdesc fixup, reconnect device */
+			if (type == HID_BPF_PROG_TYPE_RDESC_FIXUP)
+				hid_bpf_reconnect(hdev);
+		}
+	}
+
+	/* remove all unused progs from the jump table */
+	FOR_ENTRIES(i, jmp_table.tail, jmp_table.head) {
+		struct hid_bpf_prog_entry *entry = &jmp_table.entries[i];
+
+		if (test_bit(entry->idx, jmp_table.enabled))
+			continue;
+
+		if (entry->prog)
+			__hid_bpf_do_release_prog(map_fd, entry->idx);
+	}
+
+	/* compact the entry list */
+	n = jmp_table.tail;
+	FOR_ENTRIES(i, jmp_table.tail, jmp_table.head) {
+		struct hid_bpf_prog_entry *entry = &jmp_table.entries[i];
+
+		if (!test_bit(entry->idx, jmp_table.enabled))
+			continue;
+
+		jmp_table.entries[n] = jmp_table.entries[i];
+		n = NEXT(n);
+	}
+
+	jmp_table.head = n;
+
+	mutex_unlock(&hid_bpf_attach_lock);
+
+	if (map_fd >= 0)
+		close_fd(map_fd);
+}
+
+static void hid_bpf_release_prog_at(int idx)
+{
+	int map_fd = -1;
+
+	/* retrieve a fd of our prog_array map in BPF */
+	map_fd = skel_map_get_fd_by_id(jmp_table.map->id);
+	if (map_fd < 0)
+		return;
+
+	__hid_bpf_do_release_prog(map_fd, idx);
+
+	close(map_fd);
+}
+
+/*
+ * Insert the given BPF program represented by its fd in the jmp table.
+ * Returns the index in the jump table or a negative error.
+ */
+static int hid_bpf_insert_prog(int prog_fd, struct bpf_prog *prog)
+{
+	int i, index = -1, map_fd = -1, err = -EINVAL;
+
+	/* retrieve a fd of our prog_array map in BPF */
+	map_fd = skel_map_get_fd_by_id(jmp_table.map->id);
+
+	if (map_fd < 0) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* find the first available index in the jmp_table */
+	for (i = 0; i < HID_BPF_MAX_PROGS; i++) {
+		if (!jmp_table.progs[i] && index < 0) {
+			/* mark the index as used */
+			jmp_table.progs[i] = prog;
+			index = i;
+			__set_bit(i, jmp_table.enabled);
+		}
+	}
+	if (index < 0) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	/* insert the program in the jump table */
+	err = skel_map_update_elem(map_fd, &index, &prog_fd, 0);
+	if (err)
+		goto out;
+
+	/* return the index */
+	err = index;
+
+ out:
+	if (err < 0)
+		__hid_bpf_do_release_prog(map_fd, index);
+	if (map_fd >= 0)
+		close_fd(map_fd);
+	return err;
+}
+
+int hid_bpf_get_prog_attach_type(int prog_fd)
+{
+	struct bpf_prog *prog = NULL;
+	int i;
+	int prog_type = HID_BPF_PROG_TYPE_UNDEF;
+
+	prog = bpf_prog_get(prog_fd);
+	if (IS_ERR(prog))
+		return PTR_ERR(prog);
+
+	for (i = 0; i < HID_BPF_PROG_TYPE_MAX; i++) {
+		if (hid_bpf_btf_ids[i] == prog->aux->attach_btf_id) {
+			prog_type = i;
+			break;
+		}
+	}
+
+	bpf_prog_put(prog);
+
+	return prog_type;
+}
+
+static void hid_bpf_link_release(struct bpf_link *link)
+{
+	struct hid_bpf_link *hid_link =
+		container_of(link, struct hid_bpf_link, link);
+
+	__clear_bit(hid_link->hid_table_index, jmp_table.enabled);
+	schedule_work(&release_work);
+}
+
+static void hid_bpf_link_dealloc(struct bpf_link *link)
+{
+	struct hid_bpf_link *hid_link =
+		container_of(link, struct hid_bpf_link, link);
+
+	kfree(hid_link);
+}
+
+static void hid_bpf_link_show_fdinfo(const struct bpf_link *link,
+					 struct seq_file *seq)
+{
+	seq_printf(seq,
+		   "attach_type:\tHID-BPF\n");
+}
+
+static const struct bpf_link_ops hid_bpf_link_lops = {
+	.release = hid_bpf_link_release,
+	.dealloc = hid_bpf_link_dealloc,
+	.show_fdinfo = hid_bpf_link_show_fdinfo,
+};
+
+/* called from syscall */
+noinline int
+__hid_bpf_attach_prog(struct hid_device *hdev, enum hid_bpf_prog_type prog_type,
+		      int prog_fd, __u32 flags)
+{
+	struct bpf_link_primer link_primer;
+	struct hid_bpf_link *link;
+	struct bpf_prog *prog = NULL;
+	struct hid_bpf_prog_entry *prog_entry;
+	int cnt, err = -EINVAL, prog_table_idx = -1;
+
+	/* take a ref on the prog itself */
+	prog = bpf_prog_get(prog_fd);
+	if (IS_ERR(prog))
+		return PTR_ERR(prog);
+
+	mutex_lock(&hid_bpf_attach_lock);
+
+	link = kzalloc(sizeof(*link), GFP_USER);
+	if (!link) {
+		err = -ENOMEM;
+		goto err_unlock;
+	}
+
+	bpf_link_init(&link->link, BPF_LINK_TYPE_UNSPEC,
+		      &hid_bpf_link_lops, prog);
+
+	/* do not attach too many programs to a given HID device */
+	cnt = hid_bpf_program_count(hdev, NULL, prog_type);
+	if (cnt < 0) {
+		err = cnt;
+		goto err_unlock;
+	}
+
+	if (cnt >= hid_bpf_max_programs(prog_type)) {
+		err = -E2BIG;
+		goto err_unlock;
+	}
+
+	prog_table_idx = hid_bpf_insert_prog(prog_fd, prog);
+	/* if the jmp table is full, abort */
+	if (prog_table_idx < 0) {
+		err = prog_table_idx;
+		goto err_unlock;
+	}
+
+	if (flags & HID_BPF_FLAG_INSERT_HEAD) {
+		/* take the previous prog_entry slot */
+		jmp_table.tail = PREV(jmp_table.tail);
+		prog_entry = &jmp_table.entries[jmp_table.tail];
+	} else {
+		/* take the next prog_entry slot */
+		prog_entry = &jmp_table.entries[jmp_table.head];
+		jmp_table.head = NEXT(jmp_table.head);
+	}
+
+	/* we steal the ref here */
+	prog_entry->prog = prog;
+	prog_entry->idx = prog_table_idx;
+	prog_entry->hdev = hdev;
+	prog_entry->type = prog_type;
+
+	/* finally store the index in the device list */
+	err = hid_bpf_populate_hdev(hdev, prog_type);
+	if (err) {
+		hid_bpf_release_prog_at(prog_table_idx);
+		goto err_unlock;
+	}
+
+	link->hid_table_index = prog_table_idx;
+
+	err = bpf_link_prime(&link->link, &link_primer);
+	if (err)
+		goto err_unlock;
+
+	mutex_unlock(&hid_bpf_attach_lock);
+
+	return bpf_link_settle(&link_primer);
+
+ err_unlock:
+	mutex_unlock(&hid_bpf_attach_lock);
+
+	bpf_prog_put(prog);
+	kfree(link);
+
+	return err;
+}
+
+void __hid_bpf_destroy_device(struct hid_device *hdev)
+{
+	int type, i;
+	struct hid_bpf_prog_list *prog_list;
+
+	rcu_read_lock();
+
+	for (type = 0; type < HID_BPF_PROG_TYPE_MAX; type++) {
+		prog_list = rcu_dereference(hdev->bpf.progs[type]);
+
+		if (!prog_list)
+			continue;
+
+		for (i = 0; i < prog_list->prog_cnt; i++)
+			__clear_bit(prog_list->prog_idx[i], jmp_table.enabled);
+	}
+
+	rcu_read_unlock();
+
+	for (type = 0; type < HID_BPF_PROG_TYPE_MAX; type++)
+		__hid_bpf_set_hdev_progs(hdev, NULL, type);
+
+	/* schedule release of all detached progs */
+	schedule_work(&release_work);
+}
+
+#define HID_BPF_PROGS_COUNT 1
+
+static struct bpf_link *links[HID_BPF_PROGS_COUNT];
+static struct entrypoints_bpf *skel;
+
+void hid_bpf_free_links_and_skel(void)
+{
+	int i;
+
+	/* the following is enough to release all programs attached to hid */
+	if (jmp_table.map)
+		bpf_map_put_with_uref(jmp_table.map);
+
+	for (i = 0; i < ARRAY_SIZE(links); i++) {
+		if (!IS_ERR_OR_NULL(links[i]))
+			bpf_link_put(links[i]);
+	}
+	entrypoints_bpf__destroy(skel);
+}
+
+#define ATTACH_AND_STORE_LINK(__name) do {					\
+	err = entrypoints_bpf__##__name##__attach(skel);			\
+	if (err)								\
+		goto out;							\
+										\
+	links[idx] = bpf_link_get_from_fd(skel->links.__name##_fd);		\
+	if (IS_ERR(links[idx])) {						\
+		err = PTR_ERR(links[idx]);					\
+		goto out;							\
+	}									\
+										\
+	/* Avoid taking over stdin/stdout/stderr of init process. Zeroing out	\
+	 * makes skel_closenz() a no-op later in iterators_bpf__destroy().	\
+	 */									\
+	close_fd(skel->links.__name##_fd);					\
+	skel->links.__name##_fd = 0;						\
+	idx++;									\
+} while (0)
+
+int hid_bpf_preload_skel(void)
+{
+	int err, idx = 0;
+
+	skel = entrypoints_bpf__open();
+	if (!skel)
+		return -ENOMEM;
+
+	err = entrypoints_bpf__load(skel);
+	if (err)
+		goto out;
+
+	jmp_table.map = bpf_map_get_with_uref(skel->maps.hid_jmp_table.map_fd);
+	if (IS_ERR(jmp_table.map)) {
+		err = PTR_ERR(jmp_table.map);
+		goto out;
+	}
+
+	ATTACH_AND_STORE_LINK(hid_tail_call);
+
+	return 0;
+out:
+	hid_bpf_free_links_and_skel();
+	return err;
+}
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index f99752b998f3..d1094bb1aa42 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -98,6 +98,7 @@ struct asus_kbd_leds {
 	struct hid_device *hdev;
 	struct work_struct work;
 	unsigned int brightness;
+	spinlock_t lock;
 	bool removed;
 };
 
@@ -490,21 +491,42 @@ static int rog_nkey_led_init(struct hid_device *hdev)
 	return ret;
 }
 
+static void asus_schedule_work(struct asus_kbd_leds *led)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&led->lock, flags);
+	if (!led->removed)
+		schedule_work(&led->work);
+	spin_unlock_irqrestore(&led->lock, flags);
+}
+
 static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
 				   enum led_brightness brightness)
 {
 	struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
 						 cdev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&led->lock, flags);
 	led->brightness = brightness;
-	schedule_work(&led->work);
+	spin_unlock_irqrestore(&led->lock, flags);
+
+	asus_schedule_work(led);
 }
 
 static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
 {
 	struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
 						 cdev);
+	enum led_brightness brightness;
+	unsigned long flags;
+
+	spin_lock_irqsave(&led->lock, flags);
+	brightness = led->brightness;
+	spin_unlock_irqrestore(&led->lock, flags);
 
-	return led->brightness;
+	return brightness;
 }
 
 static void asus_kbd_backlight_work(struct work_struct *work)
@@ -512,11 +534,11 @@ static void asus_kbd_backlight_work(struct work_struct *work)
 	struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
 	u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
 	int ret;
+	unsigned long flags;
 
-	if (led->removed)
-		return;
-
+	spin_lock_irqsave(&led->lock, flags);
 	buf[4] = led->brightness;
+	spin_unlock_irqrestore(&led->lock, flags);
 
 	ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
 	if (ret < 0)
@@ -584,6 +606,7 @@ static int asus_kbd_register_leds(struct hid_device *hdev)
 	drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
 	drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
 	INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
+	spin_lock_init(&drvdata->kbd_backlight->lock);
 
 	ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
 	if (ret < 0) {
@@ -1119,9 +1142,13 @@ err_stop_hw:
 static void asus_remove(struct hid_device *hdev)
 {
 	struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
+	unsigned long flags;
 
 	if (drvdata->kbd_backlight) {
+		spin_lock_irqsave(&drvdata->kbd_backlight->lock, flags);
 		drvdata->kbd_backlight->removed = true;
+		spin_unlock_irqrestore(&drvdata->kbd_backlight->lock, flags);
+
 		cancel_work_sync(&drvdata->kbd_backlight->work);
 	}
 
diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index e8b16665860d..a02cb517b4c4 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c
@@ -174,6 +174,7 @@ static __u8 pid0902_rdesc_fixed[] = {
 struct bigben_device {
 	struct hid_device *hid;
 	struct hid_report *report;
+	spinlock_t lock;
 	bool removed;
 	u8 led_state;         /* LED1 = 1 .. LED4 = 8 */
 	u8 right_motor_on;    /* right motor off/on 0/1 */
@@ -184,18 +185,39 @@ struct bigben_device {
 	struct work_struct worker;
 };
 
+static inline void bigben_schedule_work(struct bigben_device *bigben)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&bigben->lock, flags);
+	if (!bigben->removed)
+		schedule_work(&bigben->worker);
+	spin_unlock_irqrestore(&bigben->lock, flags);
+}
 
 static void bigben_worker(struct work_struct *work)
 {
 	struct bigben_device *bigben = container_of(work,
 		struct bigben_device, worker);
 	struct hid_field *report_field = bigben->report->field[0];
-
-	if (bigben->removed || !report_field)
+	bool do_work_led = false;
+	bool do_work_ff = false;
+	u8 *buf;
+	u32 len;
+	unsigned long flags;
+
+	buf = hid_alloc_report_buf(bigben->report, GFP_KERNEL);
+	if (!buf)
 		return;
 
+	len = hid_report_len(bigben->report);
+
+	/* LED work */
+	spin_lock_irqsave(&bigben->lock, flags);
+
 	if (bigben->work_led) {
 		bigben->work_led = false;
+		do_work_led = true;
 		report_field->value[0] = 0x01; /* 1 = led message */
 		report_field->value[1] = 0x08; /* reserved value, always 8 */
 		report_field->value[2] = bigben->led_state;
@@ -204,11 +226,22 @@ static void bigben_worker(struct work_struct *work)
 		report_field->value[5] = 0x00; /* padding */
 		report_field->value[6] = 0x00; /* padding */
 		report_field->value[7] = 0x00; /* padding */
-		hid_hw_request(bigben->hid, bigben->report, HID_REQ_SET_REPORT);
+		hid_output_report(bigben->report, buf);
+	}
+
+	spin_unlock_irqrestore(&bigben->lock, flags);
+
+	if (do_work_led) {
+		hid_hw_raw_request(bigben->hid, bigben->report->id, buf, len,
+				   bigben->report->type, HID_REQ_SET_REPORT);
 	}
 
+	/* FF work */
+	spin_lock_irqsave(&bigben->lock, flags);
+
 	if (bigben->work_ff) {
 		bigben->work_ff = false;
+		do_work_ff = true;
 		report_field->value[0] = 0x02; /* 2 = rumble effect message */
 		report_field->value[1] = 0x08; /* reserved value, always 8 */
 		report_field->value[2] = bigben->right_motor_on;
@@ -217,8 +250,17 @@ static void bigben_worker(struct work_struct *work)
 		report_field->value[5] = 0x00; /* padding */
 		report_field->value[6] = 0x00; /* padding */
 		report_field->value[7] = 0x00; /* padding */
-		hid_hw_request(bigben->hid, bigben->report, HID_REQ_SET_REPORT);
+		hid_output_report(bigben->report, buf);
+	}
+
+	spin_unlock_irqrestore(&bigben->lock, flags);
+
+	if (do_work_ff) {
+		hid_hw_raw_request(bigben->hid, bigben->report->id, buf, len,
+				   bigben->report->type, HID_REQ_SET_REPORT);
 	}
+
+	kfree(buf);
 }
 
 static int hid_bigben_play_effect(struct input_dev *dev, void *data,
@@ -228,6 +270,7 @@ static int hid_bigben_play_effect(struct input_dev *dev, void *data,
 	struct bigben_device *bigben = hid_get_drvdata(hid);
 	u8 right_motor_on;
 	u8 left_motor_force;
+	unsigned long flags;
 
 	if (!bigben) {
 		hid_err(hid, "no device data\n");
@@ -242,10 +285,13 @@ static int hid_bigben_play_effect(struct input_dev *dev, void *data,
 
 	if (right_motor_on != bigben->right_motor_on ||
 			left_motor_force != bigben->left_motor_force) {
+		spin_lock_irqsave(&bigben->lock, flags);
 		bigben->right_motor_on   = right_motor_on;
 		bigben->left_motor_force = left_motor_force;
 		bigben->work_ff = true;
-		schedule_work(&bigben->worker);
+		spin_unlock_irqrestore(&bigben->lock, flags);
+
+		bigben_schedule_work(bigben);
 	}
 
 	return 0;
@@ -259,6 +305,7 @@ static void bigben_set_led(struct led_classdev *led,
 	struct bigben_device *bigben = hid_get_drvdata(hid);
 	int n;
 	bool work;
+	unsigned long flags;
 
 	if (!bigben) {
 		hid_err(hid, "no device data\n");
@@ -267,6 +314,7 @@ static void bigben_set_led(struct led_classdev *led,
 
 	for (n = 0; n < NUM_LEDS; n++) {
 		if (led == bigben->leds[n]) {
+			spin_lock_irqsave(&bigben->lock, flags);
 			if (value == LED_OFF) {
 				work = (bigben->led_state & BIT(n));
 				bigben->led_state &= ~BIT(n);
@@ -274,10 +322,11 @@ static void bigben_set_led(struct led_classdev *led,
 				work = !(bigben->led_state & BIT(n));
 				bigben->led_state |= BIT(n);
 			}
+			spin_unlock_irqrestore(&bigben->lock, flags);
 
 			if (work) {
 				bigben->work_led = true;
-				schedule_work(&bigben->worker);
+				bigben_schedule_work(bigben);
 			}
 			return;
 		}
@@ -307,8 +356,12 @@ static enum led_brightness bigben_get_led(struct led_classdev *led)
 static void bigben_remove(struct hid_device *hid)
 {
 	struct bigben_device *bigben = hid_get_drvdata(hid);
+	unsigned long flags;
 
+	spin_lock_irqsave(&bigben->lock, flags);
 	bigben->removed = true;
+	spin_unlock_irqrestore(&bigben->lock, flags);
+
 	cancel_work_sync(&bigben->worker);
 	hid_hw_stop(hid);
 }
@@ -318,7 +371,6 @@ static int bigben_probe(struct hid_device *hid,
 {
 	struct bigben_device *bigben;
 	struct hid_input *hidinput;
-	struct list_head *report_list;
 	struct led_classdev *led;
 	char *name;
 	size_t name_sz;
@@ -343,14 +395,12 @@ static int bigben_probe(struct hid_device *hid,
 		return error;
 	}
 
-	report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
-	if (list_empty(report_list)) {
+	bigben->report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 8);
+	if (!bigben->report) {
 		hid_err(hid, "no output report found\n");
 		error = -ENODEV;
 		goto error_hw_stop;
 	}
-	bigben->report = list_entry(report_list->next,
-		struct hid_report, list);
 
 	if (list_empty(&hid->inputs)) {
 		hid_err(hid, "no inputs found\n");
@@ -362,6 +412,7 @@ static int bigben_probe(struct hid_device *hid,
 	set_bit(FF_RUMBLE, hidinput->input->ffbit);
 
 	INIT_WORK(&bigben->worker, bigben_worker);
+	spin_lock_init(&bigben->lock);
 
 	error = input_ff_create_memless(hidinput->input, NULL,
 		hid_bigben_play_effect);
@@ -402,7 +453,7 @@ static int bigben_probe(struct hid_device *hid,
 	bigben->left_motor_force = 0;
 	bigben->work_led = true;
 	bigben->work_ff = true;
-	schedule_work(&bigben->worker);
+	bigben_schedule_work(bigben);
 
 	hid_info(hid, "LED and force feedback support for BigBen gamepad\n");
 
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 5c72aef3d3dd..1ee623c26c49 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -41,11 +41,6 @@
 
 #define DRIVER_DESC "HID core driver"
 
-int hid_debug = 0;
-module_param_named(debug, hid_debug, int, 0600);
-MODULE_PARM_DESC(debug, "toggle HID debugging messages");
-EXPORT_SYMBOL_GPL(hid_debug);
-
 static int hid_ignore_special_drivers = 0;
 module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
 MODULE_PARM_DESC(ignore_special_drivers, "Ignore any special drivers and handle all devices by generic driver");
@@ -804,7 +799,8 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 	int i;
 
 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
-	    type == HID_COLLECTION_PHYSICAL)
+	    (type == HID_COLLECTION_PHYSICAL ||
+	     type == HID_COLLECTION_APPLICATION))
 		hid->group = HID_GROUP_SENSOR_HUB;
 
 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
@@ -1219,7 +1215,8 @@ int hid_open_report(struct hid_device *device)
 		return -ENODEV;
 	size = device->dev_rsize;
 
-	buf = kmemdup(start, size, GFP_KERNEL);
+	/* call_hid_bpf_rdesc_fixup() ensures we work on a copy of rdesc */
+	buf = call_hid_bpf_rdesc_fixup(device, start, &size);
 	if (buf == NULL)
 		return -ENOMEM;
 
@@ -2046,6 +2043,12 @@ int hid_input_report(struct hid_device *hid, enum hid_report_type type, u8 *data
 	report_enum = hid->report_enum + type;
 	hdrv = hid->driver;
 
+	data = dispatch_hid_bpf_device_event(hid, type, data, &size, interrupt);
+	if (IS_ERR(data)) {
+		ret = PTR_ERR(data);
+		goto unlock;
+	}
+
 	if (!size) {
 		dbg_hid("empty report\n");
 		ret = -1;
@@ -2160,6 +2163,10 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 	int len;
 	int ret;
 
+	ret = hid_bpf_connect_device(hdev);
+	if (ret)
+		return ret;
+
 	if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
 		connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
 	if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
@@ -2261,6 +2268,8 @@ void hid_disconnect(struct hid_device *hdev)
 	if (hdev->claimed & HID_CLAIMED_HIDRAW)
 		hidraw_disconnect(hdev);
 	hdev->claimed = 0;
+
+	hid_bpf_disconnect_device(hdev);
 }
 EXPORT_SYMBOL_GPL(hid_disconnect);
 
@@ -2796,6 +2805,8 @@ struct hid_device *hid_allocate_device(void)
 	sema_init(&hdev->driver_input_lock, 1);
 	mutex_init(&hdev->ll_open_lock);
 
+	hid_bpf_device_init(hdev);
+
 	return hdev;
 }
 EXPORT_SYMBOL_GPL(hid_allocate_device);
@@ -2822,6 +2833,7 @@ static void hid_remove_device(struct hid_device *hdev)
  */
 void hid_destroy_device(struct hid_device *hdev)
 {
+	hid_bpf_destroy_device(hdev);
 	hid_remove_device(hdev);
 	put_device(&hdev->dev);
 }
@@ -2908,20 +2920,29 @@ int hid_check_keys_pressed(struct hid_device *hid)
 }
 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
 
+#ifdef CONFIG_HID_BPF
+static struct hid_bpf_ops hid_ops = {
+	.hid_get_report = hid_get_report,
+	.hid_hw_raw_request = hid_hw_raw_request,
+	.owner = THIS_MODULE,
+	.bus_type = &hid_bus_type,
+};
+#endif
+
 static int __init hid_init(void)
 {
 	int ret;
 
-	if (hid_debug)
-		pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
-			"debugfs is now used for inspecting the device (report descriptor, reports)\n");
-
 	ret = bus_register(&hid_bus_type);
 	if (ret) {
 		pr_err("can't register hid bus\n");
 		goto err;
 	}
 
+#ifdef CONFIG_HID_BPF
+	hid_bpf_ops = &hid_ops;
+#endif
+
 	ret = hidraw_init();
 	if (ret)
 		goto err_bus;
@@ -2937,6 +2958,9 @@ err:
 
 static void __exit hid_exit(void)
 {
+#ifdef CONFIG_HID_BPF
+	hid_bpf_ops = NULL;
+#endif
 	hid_debug_exit();
 	hidraw_exit();
 	bus_unregister(&hid_bus_type);
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index e213bdde543a..e7ef1ea107c9 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -975,6 +975,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_CAMERA_ACCESS_DISABLE] = "CameraAccessDisable",
 	[KEY_CAMERA_ACCESS_TOGGLE] = "CameraAccessToggle",
 	[KEY_DICTATE] = "Dictate",
+	[KEY_MICMUTE] = "MicrophoneMute",
 	[KEY_BRIGHTNESS_MIN] = "BrightnessMin",
 	[KEY_BRIGHTNESS_MAX] = "BrightnessMax",
 	[KEY_BRIGHTNESS_AUTO] = "BrightnessAuto",
diff --git a/drivers/hid/hid-evision.c b/drivers/hid/hid-evision.c
new file mode 100644
index 000000000000..ef6b4b435215
--- /dev/null
+++ b/drivers/hid/hid-evision.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  HID driver for EVision devices
+ *  For now, only ignore bogus consumer reports
+ *  sent after the keyboard has been configured
+ *
+ *  Copyright (c) 2022 Philippe Valembois
+ */
+
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+static int evision_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
+		return 0;
+
+	/* Ignore key down event */
+	if ((usage->hid & HID_USAGE) >> 8 == 0x05)
+		return -1;
+	/* Ignore key up event */
+	if ((usage->hid & HID_USAGE) >> 8 == 0x06)
+		return -1;
+
+	switch (usage->hid & HID_USAGE) {
+	/* Ignore configuration saved event */
+	case 0x0401: return -1;
+	/* Ignore reset event */
+	case 0x0402: return -1;
+	}
+	return 0;
+}
+
+static const struct hid_device_id evision_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_EVISION, USB_DEVICE_ID_EVISION_ICL01) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, evision_devices);
+
+static struct hid_driver evision_driver = {
+	.name = "evision",
+	.id_table = evision_devices,
+	.input_mapping = evision_input_mapping,
+};
+module_hid_driver(evision_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
index 2a0aabd50a45..49d4a26895e7 100644
--- a/drivers/hid/hid-hyperv.c
+++ b/drivers/hid/hid-hyperv.c
@@ -424,7 +424,7 @@ static int mousevsc_hid_raw_request(struct hid_device *hid,
 	return 0;
 }
 
-static struct hid_ll_driver mousevsc_ll_driver = {
+static const struct hid_ll_driver mousevsc_ll_driver = {
 	.parse = mousevsc_hid_parse,
 	.open = mousevsc_hid_open,
 	.close = mousevsc_hid_close,
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 9e36b4cd905e..63545cd307e5 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -448,6 +448,9 @@
 #define USB_VENDOR_ID_EMS		0x2006
 #define USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II 0x0118
 
+#define USB_VENDOR_ID_EVISION           0x320f
+#define USB_DEVICE_ID_EVISION_ICL01     0x5041
+
 #define USB_VENDOR_ID_FLATFROG		0x25b5
 #define USB_DEVICE_ID_MULTITOUCH_3200	0x0002
 
@@ -822,6 +825,7 @@
 #define USB_DEVICE_ID_LOGITECH_G510_USB_AUDIO	0xc22e
 #define USB_DEVICE_ID_LOGITECH_G29_WHEEL	0xc24f
 #define USB_DEVICE_ID_LOGITECH_G920_WHEEL	0xc262
+#define USB_DEVICE_ID_LOGITECH_G923_XBOX_WHEEL	0xc26e
 #define USB_DEVICE_ID_LOGITECH_WINGMAN_F3D	0xc283
 #define USB_DEVICE_ID_LOGITECH_FORCE3D_PRO	0xc286
 #define USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940	0xc287
@@ -1185,6 +1189,7 @@
 #define USB_VENDOR_ID_VALVE			0x28de
 #define USB_DEVICE_ID_STEAM_CONTROLLER		0x1102
 #define USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS	0x1142
+#define USB_DEVICE_ID_STEAM_DECK	0x1205
 
 #define USB_VENDOR_ID_STEELSERIES	0x1038
 #define USB_DEVICE_ID_STEELSERIES_SRWS1	0x1410
@@ -1299,7 +1304,9 @@
 #define USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO01	0x0042
 #define USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO01_V2	0x0905
 #define USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L	0x0935
+#define USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW	0x0934
 #define USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_S	0x0909
+#define USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW	0x0933
 #define USB_DEVICE_ID_UGEE_XPPEN_TABLET_STAR06	0x0078
 #define USB_DEVICE_ID_UGEE_TABLET_G5		0x0074
 #define USB_DEVICE_ID_UGEE_TABLET_EX07S		0x0071
diff --git a/drivers/hid/hid-input-test.c b/drivers/hid/hid-input-test.c
new file mode 100644
index 000000000000..77c2d45ac62a
--- /dev/null
+++ b/drivers/hid/hid-input-test.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  HID to Linux Input mapping
+ *
+ *  Copyright (c) 2022 José Expósito <jose.exposito89@gmail.com>
+ */
+
+#include <kunit/test.h>
+
+static void hid_test_input_set_battery_charge_status(struct kunit *test)
+{
+	struct hid_device *dev;
+	bool handled;
+
+	dev = kunit_kzalloc(test, sizeof(*dev), GFP_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
+
+	handled = hidinput_set_battery_charge_status(dev, HID_DG_HEIGHT, 0);
+	KUNIT_EXPECT_FALSE(test, handled);
+	KUNIT_EXPECT_EQ(test, dev->battery_charge_status, POWER_SUPPLY_STATUS_UNKNOWN);
+
+	handled = hidinput_set_battery_charge_status(dev, HID_BAT_CHARGING, 0);
+	KUNIT_EXPECT_TRUE(test, handled);
+	KUNIT_EXPECT_EQ(test, dev->battery_charge_status, POWER_SUPPLY_STATUS_DISCHARGING);
+
+	handled = hidinput_set_battery_charge_status(dev, HID_BAT_CHARGING, 1);
+	KUNIT_EXPECT_TRUE(test, handled);
+	KUNIT_EXPECT_EQ(test, dev->battery_charge_status, POWER_SUPPLY_STATUS_CHARGING);
+}
+
+static void hid_test_input_get_battery_property(struct kunit *test)
+{
+	struct power_supply *psy;
+	struct hid_device *dev;
+	union power_supply_propval val;
+	int ret;
+
+	dev = kunit_kzalloc(test, sizeof(*dev), GFP_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
+	dev->battery_avoid_query = true;
+
+	psy = kunit_kzalloc(test, sizeof(*psy), GFP_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, psy);
+	psy->drv_data = dev;
+
+	dev->battery_status = HID_BATTERY_UNKNOWN;
+	dev->battery_charge_status = POWER_SUPPLY_STATUS_CHARGING;
+	ret = hidinput_get_battery_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
+	KUNIT_EXPECT_EQ(test, ret, 0);
+	KUNIT_EXPECT_EQ(test, val.intval, POWER_SUPPLY_STATUS_UNKNOWN);
+
+	dev->battery_status = HID_BATTERY_REPORTED;
+	dev->battery_charge_status = POWER_SUPPLY_STATUS_CHARGING;
+	ret = hidinput_get_battery_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
+	KUNIT_EXPECT_EQ(test, ret, 0);
+	KUNIT_EXPECT_EQ(test, val.intval, POWER_SUPPLY_STATUS_CHARGING);
+
+	dev->battery_status = HID_BATTERY_REPORTED;
+	dev->battery_charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
+	ret = hidinput_get_battery_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
+	KUNIT_EXPECT_EQ(test, ret, 0);
+	KUNIT_EXPECT_EQ(test, val.intval, POWER_SUPPLY_STATUS_DISCHARGING);
+}
+
+static struct kunit_case hid_input_tests[] = {
+	KUNIT_CASE(hid_test_input_set_battery_charge_status),
+	KUNIT_CASE(hid_test_input_get_battery_property),
+	{ }
+};
+
+static struct kunit_suite hid_input_test_suite = {
+	.name = "hid_input",
+	.test_cases = hid_input_tests,
+};
+
+kunit_test_suite(hid_input_test_suite);
+
+MODULE_DESCRIPTION("HID input KUnit tests");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("José Expósito <jose.exposito89@gmail.com>");
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 77c8c49852b5..7fc967964dd8 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -378,6 +378,10 @@ static const struct hid_device_id hid_battery_quirks[] = {
 	  HID_BATTERY_QUIRK_IGNORE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L),
 	  HID_BATTERY_QUIRK_AVOID_QUERY },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW),
+	  HID_BATTERY_QUIRK_AVOID_QUERY },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW),
+	  HID_BATTERY_QUIRK_AVOID_QUERY },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_15),
 	  HID_BATTERY_QUIRK_IGNORE },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_15T_DR100),
@@ -486,7 +490,7 @@ static int hidinput_get_battery_property(struct power_supply *psy,
 		if (dev->battery_status == HID_BATTERY_UNKNOWN)
 			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
 		else
-			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			val->intval = dev->battery_charge_status;
 		break;
 
 	case POWER_SUPPLY_PROP_SCOPE:
@@ -554,6 +558,7 @@ static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
 	dev->battery_max = max;
 	dev->battery_report_type = report_type;
 	dev->battery_report_id = field->report->id;
+	dev->battery_charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
 
 	/*
 	 * Stylus is normally not connected to the device and thus we
@@ -620,6 +625,20 @@ static void hidinput_update_battery(struct hid_device *dev, int value)
 		power_supply_changed(dev->battery);
 	}
 }
+
+static bool hidinput_set_battery_charge_status(struct hid_device *dev,
+					       unsigned int usage, int value)
+{
+	switch (usage) {
+	case HID_BAT_CHARGING:
+		dev->battery_charge_status = value ?
+					     POWER_SUPPLY_STATUS_CHARGING :
+					     POWER_SUPPLY_STATUS_DISCHARGING;
+		return true;
+	}
+
+	return false;
+}
 #else  /* !CONFIG_HID_BATTERY_STRENGTH */
 static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
 				  struct hid_field *field, bool is_percentage)
@@ -634,6 +653,12 @@ static void hidinput_cleanup_battery(struct hid_device *dev)
 static void hidinput_update_battery(struct hid_device *dev, int value)
 {
 }
+
+static bool hidinput_set_battery_charge_status(struct hid_device *dev,
+					       unsigned int usage, int value)
+{
+	return false;
+}
 #endif	/* CONFIG_HID_BATTERY_STRENGTH */
 
 static bool hidinput_field_in_collection(struct hid_device *device, struct hid_field *field,
@@ -793,6 +818,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 			break;
 		}
 
+		if ((usage->hid & 0xf0) == 0xa0) {	/* SystemControl */
+			switch (usage->hid & 0xf) {
+			case 0x9: map_key_clear(KEY_MICMUTE); break;
+			default: goto ignore;
+			}
+			break;
+		}
+
 		if ((usage->hid & 0xf0) == 0xb0) {	/* SC - Display */
 			switch (usage->hid & 0xf) {
 			case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
@@ -1223,6 +1256,9 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 			hidinput_setup_battery(device, HID_INPUT_REPORT, field, true);
 			usage->type = EV_PWR;
 			return;
+		case HID_BAT_CHARGING:
+			usage->type = EV_PWR;
+			return;
 		}
 		goto unknown;
 
@@ -1465,7 +1501,11 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 		return;
 
 	if (usage->type == EV_PWR) {
-		hidinput_update_battery(hid, value);
+		bool handled = hidinput_set_battery_charge_status(hid, usage->hid, value);
+
+		if (!handled)
+			hidinput_update_battery(hid, value);
+
 		return;
 	}
 
@@ -2321,3 +2361,7 @@ void hidinput_disconnect(struct hid_device *hid)
 	cancel_work_sync(&hid->led_work);
 }
 EXPORT_SYMBOL_GPL(hidinput_disconnect);
+
+#ifdef CONFIG_HID_KUNIT_TEST
+#include "hid-input-test.c"
+#endif
diff --git a/drivers/hid/hid-letsketch.c b/drivers/hid/hid-letsketch.c
index 74d17cf518ba..97f047f18136 100644
--- a/drivers/hid/hid-letsketch.c
+++ b/drivers/hid/hid-letsketch.c
@@ -238,7 +238,7 @@ static int letsketch_probe(struct hid_device *hdev, const struct hid_device_id *
 	char buf[256];
 	int i, ret;
 
-	if (!hid_is_using_ll_driver(hdev, &usb_hid_driver))
+	if (!hid_is_usb(hdev))
 		return -ENODEV;
 
 	intf = to_usb_interface(hdev->dev.parent);
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index c358778e070b..62180414efcc 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -554,7 +554,7 @@ static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = {
 
 #define LOGITECH_DJ_INTERFACE_NUMBER 0x02
 
-static struct hid_ll_driver logi_dj_ll_driver;
+static const struct hid_ll_driver logi_dj_ll_driver;
 
 static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
 static void delayedwork_callback(struct work_struct *work);
@@ -1506,7 +1506,7 @@ static bool logi_dj_ll_may_wakeup(struct hid_device *hid)
 	return hid_hw_may_wakeup(djrcv_dev->hidpp);
 }
 
-static struct hid_ll_driver logi_dj_ll_driver = {
+static const struct hid_ll_driver logi_dj_ll_driver = {
 	.parse = logi_dj_ll_parse,
 	.start = logi_dj_ll_start,
 	.stop = logi_dj_ll_stop,
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 9c1ee8e91e0c..25dcda76d6c7 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -30,11 +30,7 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
 MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>");
-
-static bool disable_raw_mode;
-module_param(disable_raw_mode, bool, 0644);
-MODULE_PARM_DESC(disable_raw_mode,
-	"Disable Raw mode reporting for touchpads and keep firmware gestures.");
+MODULE_AUTHOR("Bastien Nocera <hadess@hadess.net>");
 
 static bool disable_tap_to_click;
 module_param(disable_tap_to_click, bool, 0644);
@@ -71,12 +67,13 @@ MODULE_PARM_DESC(disable_tap_to_click,
 /* bits 2..20 are reserved for classes */
 /* #define HIDPP_QUIRK_CONNECT_EVENTS		BIT(21) disabled */
 #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS	BIT(22)
-#define HIDPP_QUIRK_NO_HIDINPUT			BIT(23)
+#define HIDPP_QUIRK_DELAYED_INIT		BIT(23)
 #define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS	BIT(24)
 #define HIDPP_QUIRK_UNIFYING			BIT(25)
 #define HIDPP_QUIRK_HIDPP_WHEELS		BIT(26)
 #define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS	BIT(27)
 #define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS	BIT(28)
+#define HIDPP_QUIRK_HI_RES_SCROLL_1P0		BIT(29)
 
 /* These are just aliases for now */
 #define HIDPP_QUIRK_KBD_SCROLL_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
@@ -87,8 +84,6 @@ MODULE_PARM_DESC(disable_tap_to_click,
 					 HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL | \
 					 HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL)
 
-#define HIDPP_QUIRK_DELAYED_INIT		HIDPP_QUIRK_NO_HIDINPUT
-
 #define HIDPP_CAPABILITY_HIDPP10_BATTERY	BIT(0)
 #define HIDPP_CAPABILITY_HIDPP20_BATTERY	BIT(1)
 #define HIDPP_CAPABILITY_BATTERY_MILEAGE	BIT(2)
@@ -225,6 +220,16 @@ struct hidpp_device {
 #define HIDPP_ERROR_INVALID_PARAM_VALUE		0x0b
 #define HIDPP_ERROR_WRONG_PIN_CODE		0x0c
 /* HID++ 2.0 error codes */
+#define HIDPP20_ERROR_NO_ERROR			0x00
+#define HIDPP20_ERROR_UNKNOWN			0x01
+#define HIDPP20_ERROR_INVALID_ARGS		0x02
+#define HIDPP20_ERROR_OUT_OF_RANGE		0x03
+#define HIDPP20_ERROR_HW_ERROR			0x04
+#define HIDPP20_ERROR_LOGITECH_INTERNAL		0x05
+#define HIDPP20_ERROR_INVALID_FEATURE_INDEX	0x06
+#define HIDPP20_ERROR_INVALID_FUNCTION_ID	0x07
+#define HIDPP20_ERROR_BUSY			0x08
+#define HIDPP20_ERROR_UNSUPPORTED		0x09
 #define HIDPP20_ERROR				0xff
 
 static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
@@ -279,6 +284,7 @@ static int hidpp_send_message_sync(struct hidpp_device *hidpp,
 	struct hidpp_report *response)
 {
 	int ret;
+	int max_retries = 3;
 
 	mutex_lock(&hidpp->send_mutex);
 
@@ -291,34 +297,39 @@ static int hidpp_send_message_sync(struct hidpp_device *hidpp,
 	 */
 	*response = *message;
 
-	ret = __hidpp_send_report(hidpp->hid_dev, message);
+	for (; max_retries != 0; max_retries--) {
+		ret = __hidpp_send_report(hidpp->hid_dev, message);
 
-	if (ret) {
-		dbg_hid("__hidpp_send_report returned err: %d\n", ret);
-		memset(response, 0, sizeof(struct hidpp_report));
-		goto exit;
-	}
+		if (ret) {
+			dbg_hid("__hidpp_send_report returned err: %d\n", ret);
+			memset(response, 0, sizeof(struct hidpp_report));
+			goto exit;
+		}
 
-	if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
-				5*HZ)) {
-		dbg_hid("%s:timeout waiting for response\n", __func__);
-		memset(response, 0, sizeof(struct hidpp_report));
-		ret = -ETIMEDOUT;
-	}
+		if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
+					5*HZ)) {
+			dbg_hid("%s:timeout waiting for response\n", __func__);
+			memset(response, 0, sizeof(struct hidpp_report));
+			ret = -ETIMEDOUT;
+		}
 
-	if (response->report_id == REPORT_ID_HIDPP_SHORT &&
-	    response->rap.sub_id == HIDPP_ERROR) {
-		ret = response->rap.params[1];
-		dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
-		goto exit;
-	}
+		if (response->report_id == REPORT_ID_HIDPP_SHORT &&
+		    response->rap.sub_id == HIDPP_ERROR) {
+			ret = response->rap.params[1];
+			dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
+			goto exit;
+		}
 
-	if ((response->report_id == REPORT_ID_HIDPP_LONG ||
-			response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
-			response->fap.feature_index == HIDPP20_ERROR) {
-		ret = response->fap.params[1];
-		dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
-		goto exit;
+		if ((response->report_id == REPORT_ID_HIDPP_LONG ||
+		     response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
+		    response->fap.feature_index == HIDPP20_ERROR) {
+			ret = response->fap.params[1];
+			if (ret != HIDPP20_ERROR_BUSY) {
+				dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
+				goto exit;
+			}
+			dbg_hid("%s:got busy hidpp 2.0 error %02X, retrying\n", __func__, ret);
+		}
 	}
 
 exit:
@@ -334,8 +345,13 @@ static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
 	struct hidpp_report *message;
 	int ret;
 
-	if (param_count > sizeof(message->fap.params))
+	if (param_count > sizeof(message->fap.params)) {
+		hid_dbg(hidpp->hid_dev,
+			"Invalid number of parameters passed to command (%d != %llu)\n",
+			param_count,
+			(unsigned long long) sizeof(message->fap.params));
 		return -EINVAL;
+	}
 
 	message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
 	if (!message)
@@ -3436,11 +3452,17 @@ static int hi_res_scroll_enable(struct hidpp_device *hidpp)
 		ret = hidpp10_enable_scrolling_acceleration(hidpp);
 		multiplier = 8;
 	}
-	if (ret)
+	if (ret) {
+		hid_dbg(hidpp->hid_dev,
+			"Could not enable hi-res scrolling: %d\n", ret);
 		return ret;
+	}
 
-	if (multiplier == 0)
+	if (multiplier == 0) {
+		hid_dbg(hidpp->hid_dev,
+			"Invalid multiplier 0 from device, setting it to 1\n");
 		multiplier = 1;
+	}
 
 	hidpp->vertical_wheel_counter.wheel_multiplier = multiplier;
 	hid_dbg(hidpp->hid_dev, "wheel multiplier = %d\n", multiplier);
@@ -3472,14 +3494,8 @@ static int hidpp_initialize_hires_scroll(struct hidpp_device *hidpp)
 			hid_dbg(hidpp->hid_dev, "Detected HID++ 2.0 hi-res scrolling\n");
 		}
 	} else {
-		struct hidpp_report response;
-
-		ret = hidpp_send_rap_command_sync(hidpp,
-						  REPORT_ID_HIDPP_SHORT,
-						  HIDPP_GET_REGISTER,
-						  HIDPP_ENABLE_FAST_SCROLL,
-						  NULL, 0, &response);
-		if (!ret) {
+		/* We cannot detect fast scrolling support on HID++ 1.0 devices */
+		if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) {
 			hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL;
 			hid_dbg(hidpp->hid_dev, "Detected HID++ 1.0 fast scroll\n");
 		}
@@ -4002,7 +4018,7 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
 	if (hidpp->capabilities & HIDPP_CAPABILITY_HI_RES_SCROLL)
 		hi_res_scroll_enable(hidpp);
 
-	if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) || hidpp->delayed_input)
+	if (!(hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) || hidpp->delayed_input)
 		/* if the input nodes are already created, we can stop now */
 		return;
 
@@ -4107,6 +4123,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	bool connected;
 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
 	struct hidpp_ff_private_data data;
+	bool will_restart = false;
 
 	/* report_fixup needs drvdata to be set before we call hid_parse */
 	hidpp = devm_kzalloc(&hdev->dev, sizeof(*hidpp), GFP_KERNEL);
@@ -4147,11 +4164,6 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	    hidpp_application_equals(hdev, HID_GD_KEYBOARD))
 		hidpp->quirks |= HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS;
 
-	if (disable_raw_mode) {
-		hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
-		hidpp->quirks &= ~HIDPP_QUIRK_NO_HIDINPUT;
-	}
-
 	if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
 		ret = wtp_allocate(hdev, id);
 		if (ret)
@@ -4162,6 +4174,10 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 			return ret;
 	}
 
+	if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT ||
+	    hidpp->quirks & HIDPP_QUIRK_UNIFYING)
+		will_restart = true;
+
 	INIT_WORK(&hidpp->work, delayed_work_cb);
 	mutex_init(&hidpp->send_mutex);
 	init_waitqueue_head(&hidpp->wait);
@@ -4176,7 +4192,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	 * Plain USB connections need to actually call start and open
 	 * on the transport driver to allow incoming data.
 	 */
-	ret = hid_hw_start(hdev, 0);
+	ret = hid_hw_start(hdev, will_restart ? 0 : connect_mask);
 	if (ret) {
 		hid_err(hdev, "hw start failed\n");
 		goto hid_hw_start_fail;
@@ -4213,6 +4229,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 			hidpp->wireless_feature_index = 0;
 		else if (ret)
 			goto hid_hw_init_fail;
+		ret = 0;
 	}
 
 	if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
@@ -4227,19 +4244,21 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	hidpp_connect_event(hidpp);
 
-	/* Reset the HID node state */
-	hid_device_io_stop(hdev);
-	hid_hw_close(hdev);
-	hid_hw_stop(hdev);
+	if (will_restart) {
+		/* Reset the HID node state */
+		hid_device_io_stop(hdev);
+		hid_hw_close(hdev);
+		hid_hw_stop(hdev);
 
-	if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
-		connect_mask &= ~HID_CONNECT_HIDINPUT;
+		if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT)
+			connect_mask &= ~HID_CONNECT_HIDINPUT;
 
-	/* Now export the actual inputs and hidraw nodes to the world */
-	ret = hid_hw_start(hdev, connect_mask);
-	if (ret) {
-		hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
-		goto hid_hw_start_fail;
+		/* Now export the actual inputs and hidraw nodes to the world */
+		ret = hid_hw_start(hdev, connect_mask);
+		if (ret) {
+			hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
+			goto hid_hw_start_fail;
+		}
 	}
 
 	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
@@ -4297,9 +4316,15 @@ static const struct hid_device_id hidpp_devices[] = {
 	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
 		USB_DEVICE_ID_LOGITECH_T651),
 	  .driver_data = HIDPP_QUIRK_CLASS_WTP },
+	{ /* Mouse Logitech Anywhere MX */
+	  LDJ_DEVICE(0x1017), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
 	{ /* Mouse logitech M560 */
 	  LDJ_DEVICE(0x402d),
 	  .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
+	{ /* Mouse Logitech M705 (firmware RQM17) */
+	  LDJ_DEVICE(0x101b), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
+	{ /* Mouse Logitech Performance MX */
+	  LDJ_DEVICE(0x101a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
 	{ /* Keyboard logitech K400 */
 	  LDJ_DEVICE(0x4024),
 	  .driver_data = HIDPP_QUIRK_CLASS_K400 },
@@ -4348,6 +4373,9 @@ static const struct hid_device_id hidpp_devices[] = {
 	{ /* Logitech G920 Wheel over USB */
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL),
 		.driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS},
+	{ /* Logitech G923 Wheel (Xbox version) over USB */
+	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G923_XBOX_WHEEL),
+		.driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS },
 	{ /* Logitech G Pro Gaming Mouse over USB */
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC088) },
 
@@ -4367,6 +4395,8 @@ static const struct hid_device_id hidpp_devices[] = {
 	{ /* MX Ergo trackball over Bluetooth */
 	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01d) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01e) },
+	{ /* Signature M650 over Bluetooth */
+	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb02a) },
 	{ /* MX Master 3 mouse over Bluetooth */
 	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb023) },
 	{}
diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c
index e61dd039354b..f74a977cf8f8 100644
--- a/drivers/hid/hid-mcp2221.c
+++ b/drivers/hid/hid-mcp2221.c
@@ -922,6 +922,9 @@ static void mcp2221_hid_unregister(void *ptr)
 /* This is needed to be sure hid_hw_stop() isn't called twice by the subsystem */
 static void mcp2221_remove(struct hid_device *hdev)
 {
+	struct mcp2221 *mcp = hid_get_drvdata(hdev);
+
+	cancel_delayed_work_sync(&mcp->init_work);
 }
 
 #if IS_REACHABLE(CONFIG_IIO)
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 372cbdd223e0..e31be0cb8b85 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -71,6 +71,7 @@ MODULE_LICENSE("GPL");
 #define MT_QUIRK_SEPARATE_APP_REPORT	BIT(19)
 #define MT_QUIRK_FORCE_MULTI_INPUT	BIT(20)
 #define MT_QUIRK_DISABLE_WAKEUP		BIT(21)
+#define MT_QUIRK_ORIENTATION_INVERT	BIT(22)
 
 #define MT_INPUTMODE_TOUCHSCREEN	0x02
 #define MT_INPUTMODE_TOUCHPAD		0x03
@@ -1009,6 +1010,7 @@ static int mt_process_slot(struct mt_device *td, struct input_dev *input,
 			    struct mt_usages *slot)
 {
 	struct input_mt *mt = input->mt;
+	struct hid_device *hdev = td->hdev;
 	__s32 quirks = app->quirks;
 	bool valid = true;
 	bool confidence_state = true;
@@ -1086,6 +1088,10 @@ static int mt_process_slot(struct mt_device *td, struct input_dev *input,
 		int orientation = wide;
 		int max_azimuth;
 		int azimuth;
+		int x;
+		int y;
+		int cx;
+		int cy;
 
 		if (slot->a != DEFAULT_ZERO) {
 			/*
@@ -1104,6 +1110,9 @@ static int mt_process_slot(struct mt_device *td, struct input_dev *input,
 			if (azimuth > max_azimuth * 2)
 				azimuth -= max_azimuth * 4;
 			orientation = -azimuth;
+			if (quirks & MT_QUIRK_ORIENTATION_INVERT)
+				orientation = -orientation;
+
 		}
 
 		if (quirks & MT_QUIRK_TOUCH_SIZE_SCALING) {
@@ -1115,10 +1124,23 @@ static int mt_process_slot(struct mt_device *td, struct input_dev *input,
 			minor = minor >> 1;
 		}
 
-		input_event(input, EV_ABS, ABS_MT_POSITION_X, *slot->x);
-		input_event(input, EV_ABS, ABS_MT_POSITION_Y, *slot->y);
-		input_event(input, EV_ABS, ABS_MT_TOOL_X, *slot->cx);
-		input_event(input, EV_ABS, ABS_MT_TOOL_Y, *slot->cy);
+		x = hdev->quirks & HID_QUIRK_X_INVERT ?
+			input_abs_get_max(input, ABS_MT_POSITION_X) - *slot->x :
+			*slot->x;
+		y = hdev->quirks & HID_QUIRK_Y_INVERT ?
+			input_abs_get_max(input, ABS_MT_POSITION_Y) - *slot->y :
+			*slot->y;
+		cx = hdev->quirks & HID_QUIRK_X_INVERT ?
+			input_abs_get_max(input, ABS_MT_POSITION_X) - *slot->cx :
+			*slot->cx;
+		cy = hdev->quirks & HID_QUIRK_Y_INVERT ?
+			input_abs_get_max(input, ABS_MT_POSITION_Y) - *slot->cy :
+			*slot->cy;
+
+		input_event(input, EV_ABS, ABS_MT_POSITION_X, x);
+		input_event(input, EV_ABS, ABS_MT_POSITION_Y, y);
+		input_event(input, EV_ABS, ABS_MT_TOOL_X, cx);
+		input_event(input, EV_ABS, ABS_MT_TOOL_Y, cy);
 		input_event(input, EV_ABS, ABS_MT_DISTANCE, !*slot->tip_state);
 		input_event(input, EV_ABS, ABS_MT_ORIENTATION, orientation);
 		input_event(input, EV_ABS, ABS_MT_PRESSURE, *slot->p);
@@ -1735,6 +1757,15 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
 		td->serial_maybe = true;
 
+
+	/* Orientation is inverted if the X or Y axes are
+	 * flipped, but normalized if both are inverted.
+	 */
+	if (hdev->quirks & (HID_QUIRK_X_INVERT | HID_QUIRK_Y_INVERT) &&
+	    !((hdev->quirks & HID_QUIRK_X_INVERT)
+	      && (hdev->quirks & HID_QUIRK_Y_INVERT)))
+		td->mtclass.quirks = MT_QUIRK_ORIENTATION_INVERT;
+
 	/* This allows the driver to correctly support devices
 	 * that emit events over several HID messages.
 	 */
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c
index 27c40894acab..8ac8f7b8e317 100644
--- a/drivers/hid/hid-playstation.c
+++ b/drivers/hid/hid-playstation.c
@@ -993,19 +993,22 @@ static int dualsense_get_calibration_data(struct dualsense *ds)
 	 */
 	speed_2x = (gyro_speed_plus + gyro_speed_minus);
 	ds->gyro_calib_data[0].abs_code = ABS_RX;
-	ds->gyro_calib_data[0].bias = gyro_pitch_bias;
+	ds->gyro_calib_data[0].bias = 0;
 	ds->gyro_calib_data[0].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S;
-	ds->gyro_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;
+	ds->gyro_calib_data[0].sens_denom = abs(gyro_pitch_plus - gyro_pitch_bias) +
+			abs(gyro_pitch_minus - gyro_pitch_bias);
 
 	ds->gyro_calib_data[1].abs_code = ABS_RY;
-	ds->gyro_calib_data[1].bias = gyro_yaw_bias;
+	ds->gyro_calib_data[1].bias = 0;
 	ds->gyro_calib_data[1].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S;
-	ds->gyro_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;
+	ds->gyro_calib_data[1].sens_denom = abs(gyro_yaw_plus - gyro_yaw_bias) +
+			abs(gyro_yaw_minus - gyro_yaw_bias);
 
 	ds->gyro_calib_data[2].abs_code = ABS_RZ;
-	ds->gyro_calib_data[2].bias = gyro_roll_bias;
+	ds->gyro_calib_data[2].bias = 0;
 	ds->gyro_calib_data[2].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S;
-	ds->gyro_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;
+	ds->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) +
+			abs(gyro_roll_minus - gyro_roll_bias);
 
 	/*
 	 * Sanity check gyro calibration data. This is needed to prevent crashes
@@ -1388,8 +1391,7 @@ static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *r
 	for (i = 0; i < ARRAY_SIZE(ds_report->gyro); i++) {
 		int raw_data = (short)le16_to_cpu(ds_report->gyro[i]);
 		int calib_data = mult_frac(ds->gyro_calib_data[i].sens_numer,
-					   raw_data - ds->gyro_calib_data[i].bias,
-					   ds->gyro_calib_data[i].sens_denom);
+					   raw_data, ds->gyro_calib_data[i].sens_denom);
 
 		input_report_abs(ds->sensors, ds->gyro_calib_data[i].abs_code, calib_data);
 	}
@@ -1792,11 +1794,10 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
 				if (retries < 2) {
 					hid_warn(hdev, "Retrying DualShock 4 get calibration report (0x02) request\n");
 					continue;
-				} else {
-					ret = -EILSEQ;
-					goto err_free;
 				}
+
 				hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
+				ret = -EILSEQ;
 				goto err_free;
 			} else {
 				break;
@@ -1849,19 +1850,22 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
 	 */
 	speed_2x = (gyro_speed_plus + gyro_speed_minus);
 	ds4->gyro_calib_data[0].abs_code = ABS_RX;
-	ds4->gyro_calib_data[0].bias = gyro_pitch_bias;
+	ds4->gyro_calib_data[0].bias = 0;
 	ds4->gyro_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
-	ds4->gyro_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;
+	ds4->gyro_calib_data[0].sens_denom = abs(gyro_pitch_plus - gyro_pitch_bias) +
+			abs(gyro_pitch_minus - gyro_pitch_bias);
 
 	ds4->gyro_calib_data[1].abs_code = ABS_RY;
-	ds4->gyro_calib_data[1].bias = gyro_yaw_bias;
+	ds4->gyro_calib_data[1].bias = 0;
 	ds4->gyro_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
-	ds4->gyro_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;
+	ds4->gyro_calib_data[1].sens_denom = abs(gyro_yaw_plus - gyro_yaw_bias) +
+			abs(gyro_yaw_minus - gyro_yaw_bias);
 
 	ds4->gyro_calib_data[2].abs_code = ABS_RZ;
-	ds4->gyro_calib_data[2].bias = gyro_roll_bias;
+	ds4->gyro_calib_data[2].bias = 0;
 	ds4->gyro_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
-	ds4->gyro_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;
+	ds4->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) +
+			abs(gyro_roll_minus - gyro_roll_bias);
 
 	/*
 	 * Sanity check gyro calibration data. This is needed to prevent crashes
@@ -2242,8 +2246,7 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *
 	for (i = 0; i < ARRAY_SIZE(ds4_report->gyro); i++) {
 		int raw_data = (short)le16_to_cpu(ds4_report->gyro[i]);
 		int calib_data = mult_frac(ds4->gyro_calib_data[i].sens_numer,
-					   raw_data - ds4->gyro_calib_data[i].bias,
-					   ds4->gyro_calib_data[i].sens_denom);
+					   raw_data, ds4->gyro_calib_data[i].sens_denom);
 
 		input_report_abs(ds4->sensors, ds4->gyro_calib_data[i].abs_code, calib_data);
 	}
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 5bc91f68b374..66e64350f138 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -1237,7 +1237,7 @@ EXPORT_SYMBOL_GPL(hid_quirks_exit);
 static unsigned long hid_gets_squirk(const struct hid_device *hdev)
 {
 	const struct hid_device_id *bl_entry;
-	unsigned long quirks = 0;
+	unsigned long quirks = hdev->initial_quirks;
 
 	if (hid_match_id(hdev, hid_ignore_list))
 		quirks |= HID_QUIRK_IGNORE;
diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-sensor-custom.c
index f444e63e9f36..3e3f89e01d81 100644
--- a/drivers/hid/hid-sensor-custom.c
+++ b/drivers/hid/hid-sensor-custom.c
@@ -5,6 +5,7 @@
  */
 
 #include <linux/ctype.h>
+#include <linux/dmi.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -750,114 +751,209 @@ static void hid_sensor_custom_dev_if_remove(struct hid_sensor_custom
 
 }
 
-/* luid defined in FW (e.g. ISH).  Maybe used to identify sensor. */
-static const char *const known_sensor_luid[] = { "020B000000000000" };
+/*
+ * Match a known custom sensor.
+ * tag and luid is mandatory.
+ */
+struct hid_sensor_custom_match {
+	const char *tag;
+	const char *luid;
+	const char *model;
+	const char *manufacturer;
+	bool check_dmi;
+	struct dmi_system_id dmi;
+};
 
-static int get_luid_table_index(unsigned char *usage_str)
-{
-	int i;
+/*
+ * Custom sensor properties used for matching.
+ */
+struct hid_sensor_custom_properties {
+	u16 serial_num[HID_CUSTOM_MAX_FEATURE_BYTES];
+	u16 model[HID_CUSTOM_MAX_FEATURE_BYTES];
+	u16 manufacturer[HID_CUSTOM_MAX_FEATURE_BYTES];
+};
+
+static const struct hid_sensor_custom_match hid_sensor_custom_known_table[] = {
+	/*
+	 * Intel Integrated Sensor Hub (ISH)
+	 */
+	{	/* Intel ISH hinge */
+		.tag = "INT",
+		.luid = "020B000000000000",
+		.manufacturer = "INTEL",
+	},
+	/*
+	 * Lenovo Intelligent Sensing Solution (LISS)
+	 */
+	{	/* ambient light */
+		.tag = "LISS",
+		.luid = "0041010200000082",
+		.model = "STK3X3X Sensor",
+		.manufacturer = "Vendor 258",
+		.check_dmi = true,
+		.dmi.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		}
+	},
+	{	/* human presence */
+		.tag = "LISS",
+		.luid = "0226000171AC0081",
+		.model = "VL53L1_HOD Sensor",
+		.manufacturer = "ST_MICRO",
+		.check_dmi = true,
+		.dmi.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		}
+	},
+	{}
+};
 
-	for (i = 0; i < ARRAY_SIZE(known_sensor_luid); i++) {
-		if (!strncmp(usage_str, known_sensor_luid[i],
-			     strlen(known_sensor_luid[i])))
-			return i;
+static bool hid_sensor_custom_prop_match_str(const u16 *prop, const char *match,
+					     size_t count)
+{
+	while (count-- && *prop && *match) {
+		if (*prop != (u16) *match)
+			return false;
+		prop++;
+		match++;
 	}
 
-	return -ENODEV;
+	return (count == -1) || *prop == (u16)*match;
 }
 
-static int get_known_custom_sensor_index(struct hid_sensor_hub_device *hsdev)
+static int hid_sensor_custom_get_prop(struct hid_sensor_hub_device *hsdev,
+				      u32 prop_usage_id, size_t prop_size,
+				      u16 *prop)
 {
-	struct hid_sensor_hub_attribute_info sensor_manufacturer = { 0 };
-	struct hid_sensor_hub_attribute_info sensor_luid_info = { 0 };
-	int report_size;
+	struct hid_sensor_hub_attribute_info prop_attr = { 0 };
 	int ret;
-	static u16 w_buf[HID_CUSTOM_MAX_FEATURE_BYTES];
-	static char buf[HID_CUSTOM_MAX_FEATURE_BYTES];
-	int i;
 
-	memset(w_buf, 0, sizeof(w_buf));
-	memset(buf, 0, sizeof(buf));
+	memset(prop, 0, prop_size);
 
-	/* get manufacturer info */
-	ret = sensor_hub_input_get_attribute_info(hsdev,
-			HID_FEATURE_REPORT, hsdev->usage,
-			HID_USAGE_SENSOR_PROP_MANUFACTURER, &sensor_manufacturer);
+	ret = sensor_hub_input_get_attribute_info(hsdev, HID_FEATURE_REPORT,
+						  hsdev->usage, prop_usage_id,
+						  &prop_attr);
 	if (ret < 0)
 		return ret;
 
-	report_size =
-		sensor_hub_get_feature(hsdev, sensor_manufacturer.report_id,
-				       sensor_manufacturer.index, sizeof(w_buf),
-				       w_buf);
-	if (report_size <= 0) {
-		hid_err(hsdev->hdev,
-			"Failed to get sensor manufacturer info %d\n",
-			report_size);
-		return -ENODEV;
+	ret = sensor_hub_get_feature(hsdev, prop_attr.report_id,
+				     prop_attr.index, prop_size, prop);
+	if (ret < 0) {
+		hid_err(hsdev->hdev, "Failed to get sensor property %08x %d\n",
+			prop_usage_id, ret);
+		return ret;
 	}
 
-	/* convert from wide char to char */
-	for (i = 0; i < ARRAY_SIZE(buf) - 1 && w_buf[i]; i++)
-		buf[i] = (char)w_buf[i];
+	return 0;
+}
 
-	/* ensure it's ISH sensor */
-	if (strncmp(buf, "INTEL", strlen("INTEL")))
-		return -ENODEV;
+static bool
+hid_sensor_custom_do_match(struct hid_sensor_hub_device *hsdev,
+			   const struct hid_sensor_custom_match *match,
+			   const struct hid_sensor_custom_properties *prop)
+{
+	struct dmi_system_id dmi[] = { match->dmi, { 0 } };
 
-	memset(w_buf, 0, sizeof(w_buf));
-	memset(buf, 0, sizeof(buf));
+	if (!hid_sensor_custom_prop_match_str(prop->serial_num, "LUID:", 5) ||
+	    !hid_sensor_custom_prop_match_str(prop->serial_num + 5, match->luid,
+					      HID_CUSTOM_MAX_FEATURE_BYTES - 5))
+		return false;
 
-	/* get real usage id */
-	ret = sensor_hub_input_get_attribute_info(hsdev,
-			HID_FEATURE_REPORT, hsdev->usage,
-			HID_USAGE_SENSOR_PROP_SERIAL_NUM, &sensor_luid_info);
+	if (match->model &&
+	    !hid_sensor_custom_prop_match_str(prop->model, match->model,
+					      HID_CUSTOM_MAX_FEATURE_BYTES))
+		return false;
+
+	if (match->manufacturer &&
+	    !hid_sensor_custom_prop_match_str(prop->manufacturer, match->manufacturer,
+					      HID_CUSTOM_MAX_FEATURE_BYTES))
+		return false;
+
+	if (match->check_dmi && !dmi_check_system(dmi))
+		return false;
+
+	return true;
+}
+
+static int
+hid_sensor_custom_properties_get(struct hid_sensor_hub_device *hsdev,
+				 struct hid_sensor_custom_properties *prop)
+{
+	int ret;
+
+	ret = hid_sensor_custom_get_prop(hsdev,
+					 HID_USAGE_SENSOR_PROP_SERIAL_NUM,
+					 HID_CUSTOM_MAX_FEATURE_BYTES,
+					 prop->serial_num);
 	if (ret < 0)
 		return ret;
 
-	report_size = sensor_hub_get_feature(hsdev, sensor_luid_info.report_id,
-					     sensor_luid_info.index, sizeof(w_buf),
-					     w_buf);
-	if (report_size <= 0) {
-		hid_err(hsdev->hdev, "Failed to get real usage info %d\n",
-			report_size);
-		return -ENODEV;
-	}
+	/*
+	 * Ignore errors on the following model and manufacturer properties.
+	 * Because these are optional, it is not an error if they are missing.
+	 */
 
-	/* convert from wide char to char */
-	for (i = 0; i < ARRAY_SIZE(buf) - 1 && w_buf[i]; i++)
-		buf[i] = (char)w_buf[i];
+	hid_sensor_custom_get_prop(hsdev, HID_USAGE_SENSOR_PROP_MODEL,
+				   HID_CUSTOM_MAX_FEATURE_BYTES,
+				   prop->model);
 
-	if (strlen(buf) != strlen(known_sensor_luid[0]) + 5) {
-		hid_err(hsdev->hdev,
-			"%s luid length not match %zu != (%zu + 5)\n", __func__,
-			strlen(buf), strlen(known_sensor_luid[0]));
-		return -ENODEV;
-	}
+	hid_sensor_custom_get_prop(hsdev, HID_USAGE_SENSOR_PROP_MANUFACTURER,
+				   HID_CUSTOM_MAX_FEATURE_BYTES,
+				   prop->manufacturer);
 
-	/* get table index with luid (not matching 'LUID: ' in luid) */
-	return get_luid_table_index(&buf[5]);
+	return 0;
+}
+
+static int
+hid_sensor_custom_get_known(struct hid_sensor_hub_device *hsdev,
+			    const struct hid_sensor_custom_match **known)
+{
+	int ret;
+	const struct hid_sensor_custom_match *match =
+		hid_sensor_custom_known_table;
+	struct hid_sensor_custom_properties *prop;
+
+	prop = kmalloc(sizeof(struct hid_sensor_custom_properties), GFP_KERNEL);
+	if (!prop)
+		return -ENOMEM;
+
+	ret = hid_sensor_custom_properties_get(hsdev, prop);
+	if (ret < 0)
+		goto out;
+
+	while (match->tag) {
+		if (hid_sensor_custom_do_match(hsdev, match, prop)) {
+			*known = match;
+			ret = 0;
+			goto out;
+		}
+		match++;
+	}
+	ret = -ENODATA;
+out:
+	kfree(prop);
+	return ret;
 }
 
 static struct platform_device *
 hid_sensor_register_platform_device(struct platform_device *pdev,
 				    struct hid_sensor_hub_device *hsdev,
-				    int index)
+				    const struct hid_sensor_custom_match *match)
 {
-	char real_usage[HID_SENSOR_USAGE_LENGTH] = { 0 };
+	char real_usage[HID_SENSOR_USAGE_LENGTH];
 	struct platform_device *custom_pdev;
 	const char *dev_name;
 	char *c;
 
-	/* copy real usage id */
-	memcpy(real_usage, known_sensor_luid[index], 4);
+	memcpy(real_usage, match->luid, 4);
 
 	/* usage id are all lowcase */
 	for (c = real_usage; *c != '\0'; c++)
 		*c = tolower(*c);
 
-	/* HID-SENSOR-INT-REAL_USAGE_ID */
-	dev_name = kasprintf(GFP_KERNEL, "HID-SENSOR-INT-%s", real_usage);
+	/* HID-SENSOR-TAG-REAL_USAGE_ID */
+	dev_name = kasprintf(GFP_KERNEL, "HID-SENSOR-%s-%s",
+			     match->tag, real_usage);
 	if (!dev_name)
 		return ERR_PTR(-ENOMEM);
 
@@ -873,7 +969,7 @@ static int hid_sensor_custom_probe(struct platform_device *pdev)
 	struct hid_sensor_custom *sensor_inst;
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	int ret;
-	int index;
+	const struct hid_sensor_custom_match *match;
 
 	sensor_inst = devm_kzalloc(&pdev->dev, sizeof(*sensor_inst),
 				   GFP_KERNEL);
@@ -888,10 +984,10 @@ static int hid_sensor_custom_probe(struct platform_device *pdev)
 	mutex_init(&sensor_inst->mutex);
 	platform_set_drvdata(pdev, sensor_inst);
 
-	index = get_known_custom_sensor_index(hsdev);
-	if (index >= 0 && index < ARRAY_SIZE(known_sensor_luid)) {
+	ret = hid_sensor_custom_get_known(hsdev, &match);
+	if (!ret) {
 		sensor_inst->custom_pdev =
-			hid_sensor_register_platform_device(pdev, hsdev, index);
+			hid_sensor_register_platform_device(pdev, hsdev, match);
 
 		ret = PTR_ERR_OR_ZERO(sensor_inst->custom_pdev);
 		if (ret) {
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 6abd3e2a9094..83237b86c8ff 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 		for (i = 0; i < report->maxfield; ++i) {
 			field = report->field[i];
 			if (field->maxusage) {
-				if (field->physical == usage_id &&
+				if ((field->physical == usage_id ||
+				     field->application == usage_id) &&
 					(field->logical == attr_usage_id ||
 					field->usage[0].hid ==
 							attr_usage_id) &&
@@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 					collection->usage);
 
 		callback = sensor_hub_get_callback(hdev,
-				report->field[i]->physical,
+				report->field[i]->physical ? report->field[i]->physical :
+							     report->field[i]->application,
 				report->field[i]->usage[0].collection_index,
 				&hsdev, &priv);
 		if (!callback) {
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 13125997ab5e..dd942061fd77 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -49,38 +49,28 @@
 #define SIXAXIS_CONTROLLER_BT     BIT(2)
 #define BUZZ_CONTROLLER           BIT(3)
 #define PS3REMOTE                 BIT(4)
-#define DUALSHOCK4_CONTROLLER_USB BIT(5)
-#define DUALSHOCK4_CONTROLLER_BT  BIT(6)
-#define DUALSHOCK4_DONGLE         BIT(7)
-#define MOTION_CONTROLLER_USB     BIT(8)
-#define MOTION_CONTROLLER_BT      BIT(9)
-#define NAVIGATION_CONTROLLER_USB BIT(10)
-#define NAVIGATION_CONTROLLER_BT  BIT(11)
-#define SINO_LITE_CONTROLLER      BIT(12)
-#define FUTUREMAX_DANCE_MAT       BIT(13)
-#define NSG_MR5U_REMOTE_BT        BIT(14)
-#define NSG_MR7U_REMOTE_BT        BIT(15)
-#define SHANWAN_GAMEPAD           BIT(16)
-#define GH_GUITAR_CONTROLLER      BIT(17)
-#define GHL_GUITAR_PS3WIIU        BIT(18)
-#define GHL_GUITAR_PS4            BIT(19)
+#define MOTION_CONTROLLER_USB     BIT(5)
+#define MOTION_CONTROLLER_BT      BIT(6)
+#define NAVIGATION_CONTROLLER_USB BIT(7)
+#define NAVIGATION_CONTROLLER_BT  BIT(8)
+#define SINO_LITE_CONTROLLER      BIT(9)
+#define FUTUREMAX_DANCE_MAT       BIT(10)
+#define NSG_MR5U_REMOTE_BT        BIT(11)
+#define NSG_MR7U_REMOTE_BT        BIT(12)
+#define SHANWAN_GAMEPAD           BIT(13)
+#define GH_GUITAR_CONTROLLER      BIT(14)
+#define GHL_GUITAR_PS3WIIU        BIT(15)
+#define GHL_GUITAR_PS4            BIT(16)
 
 #define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
 #define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
 #define NAVIGATION_CONTROLLER (NAVIGATION_CONTROLLER_USB |\
 				NAVIGATION_CONTROLLER_BT)
-#define DUALSHOCK4_CONTROLLER (DUALSHOCK4_CONTROLLER_USB |\
-				DUALSHOCK4_CONTROLLER_BT | \
-				DUALSHOCK4_DONGLE)
 #define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\
-				DUALSHOCK4_CONTROLLER | MOTION_CONTROLLER |\
-				NAVIGATION_CONTROLLER)
-#define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
-				MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER)
-#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
-				MOTION_CONTROLLER)
-#define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | DUALSHOCK4_CONTROLLER_BT |\
-			MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
+				MOTION_CONTROLLER | NAVIGATION_CONTROLLER)
+#define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER)
+#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | MOTION_CONTROLLER)
+#define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
 #define NSG_MRXU_REMOTE (NSG_MR5U_REMOTE_BT | NSG_MR7U_REMOTE_BT)
 
 #define MAX_LEDS 4
@@ -428,36 +418,6 @@ static const unsigned int sixaxis_keymap[] = {
 	[0x11] = BTN_MODE, /* PS */
 };
 
-static const unsigned int ds4_absmap[] = {
-	[0x30] = ABS_X,
-	[0x31] = ABS_Y,
-	[0x32] = ABS_RX, /* right stick X */
-	[0x33] = ABS_Z, /* L2 */
-	[0x34] = ABS_RZ, /* R2 */
-	[0x35] = ABS_RY, /* right stick Y */
-};
-
-static const unsigned int ds4_keymap[] = {
-	[0x1] = BTN_WEST, /* Square */
-	[0x2] = BTN_SOUTH, /* Cross */
-	[0x3] = BTN_EAST, /* Circle */
-	[0x4] = BTN_NORTH, /* Triangle */
-	[0x5] = BTN_TL, /* L1 */
-	[0x6] = BTN_TR, /* R1 */
-	[0x7] = BTN_TL2, /* L2 */
-	[0x8] = BTN_TR2, /* R2 */
-	[0x9] = BTN_SELECT, /* Share */
-	[0xa] = BTN_START, /* Options */
-	[0xb] = BTN_THUMBL, /* L3 */
-	[0xc] = BTN_THUMBR, /* R3 */
-	[0xd] = BTN_MODE, /* PS */
-};
-
-static const struct {int x; int y; } ds4_hat_mapping[] = {
-	{0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1},
-	{0, 0}
-};
-
 static enum power_supply_property sony_battery_props[] = {
 	POWER_SUPPLY_PROP_PRESENT,
 	POWER_SUPPLY_PROP_CAPACITY,
@@ -502,35 +462,12 @@ struct motion_output_report_02 {
 	u8 rumble;
 };
 
-#define DS4_FEATURE_REPORT_0x02_SIZE 37
-#define DS4_FEATURE_REPORT_0x05_SIZE 41
-#define DS4_FEATURE_REPORT_0x81_SIZE 7
-#define DS4_FEATURE_REPORT_0xA3_SIZE 49
-#define DS4_INPUT_REPORT_0x11_SIZE 78
-#define DS4_OUTPUT_REPORT_0x05_SIZE 32
-#define DS4_OUTPUT_REPORT_0x11_SIZE 78
 #define SIXAXIS_REPORT_0xF2_SIZE 17
 #define SIXAXIS_REPORT_0xF5_SIZE 8
 #define MOTION_REPORT_0x02_SIZE 49
 
-/* Offsets relative to USB input report (0x1). Bluetooth (0x11) requires an
- * additional +2.
- */
-#define DS4_INPUT_REPORT_AXIS_OFFSET      1
-#define DS4_INPUT_REPORT_BUTTON_OFFSET    5
-#define DS4_INPUT_REPORT_TIMESTAMP_OFFSET 10
-#define DS4_INPUT_REPORT_GYRO_X_OFFSET   13
-#define DS4_INPUT_REPORT_BATTERY_OFFSET  30
-#define DS4_INPUT_REPORT_TOUCHPAD_OFFSET 33
-
 #define SENSOR_SUFFIX " Motion Sensors"
-#define DS4_TOUCHPAD_SUFFIX " Touchpad"
-
-/* Default to 4ms poll interval, which is same as USB (not adjustable). */
-#define DS4_BT_DEFAULT_POLL_INTERVAL_MS 4
-#define DS4_BT_MAX_POLL_INTERVAL_MS 62
-#define DS4_GYRO_RES_PER_DEG_S 1024
-#define DS4_ACC_RES_PER_G      8192
+#define TOUCHPAD_SUFFIX " Touchpad"
 
 #define SIXAXIS_INPUT_REPORT_ACC_X_OFFSET 41
 #define SIXAXIS_ACC_RES_PER_G 113
@@ -539,28 +476,8 @@ static DEFINE_SPINLOCK(sony_dev_list_lock);
 static LIST_HEAD(sony_device_list);
 static DEFINE_IDA(sony_device_id_allocator);
 
-/* Used for calibration of DS4 accelerometer and gyro. */
-struct ds4_calibration_data {
-	int abs_code;
-	short bias;
-	/* Calibration requires scaling against a sensitivity value, which is a
-	 * float. Store sensitivity as a fraction to limit floating point
-	 * calculations until final calibration.
-	 */
-	int sens_numer;
-	int sens_denom;
-};
-
-enum ds4_dongle_state {
-	DONGLE_DISCONNECTED,
-	DONGLE_CALIBRATING,
-	DONGLE_CONNECTED,
-	DONGLE_DISABLED
-};
-
 enum sony_worker {
-	SONY_WORKER_STATE,
-	SONY_WORKER_HOTPLUG
+	SONY_WORKER_STATE
 };
 
 struct sony_sc {
@@ -571,16 +488,11 @@ struct sony_sc {
 	struct input_dev *sensor_dev;
 	struct led_classdev *leds[MAX_LEDS];
 	unsigned long quirks;
-	struct work_struct hotplug_worker;
 	struct work_struct state_worker;
 	void (*send_output_report)(struct sony_sc *);
 	struct power_supply *battery;
 	struct power_supply_desc battery_desc;
 	int device_id;
-	unsigned fw_version;
-	bool fw_version_created;
-	unsigned hw_version;
-	bool hw_version_created;
 	u8 *output_report_dmabuf;
 
 #ifdef CONFIG_SONY_FF
@@ -589,7 +501,6 @@ struct sony_sc {
 #endif
 
 	u8 mac_address[6];
-	u8 hotplug_worker_initialized;
 	u8 state_worker_initialized;
 	u8 defer_initialization;
 	u8 battery_capacity;
@@ -599,14 +510,6 @@ struct sony_sc {
 	u8 led_delay_off[MAX_LEDS];
 	u8 led_count;
 
-	bool timestamp_initialized;
-	u16 prev_timestamp;
-	unsigned int timestamp_us;
-
-	u8 ds4_bt_poll_interval;
-	enum ds4_dongle_state ds4_dongle_state;
-	/* DS4 calibration data */
-	struct ds4_calibration_data ds4_calib_data[6];
 	/* GH Live */
 	struct urb *ghl_urb;
 	struct timer_list ghl_poke_timer;
@@ -626,10 +529,6 @@ static inline void sony_schedule_work(struct sony_sc *sc,
 			schedule_work(&sc->state_worker);
 		spin_unlock_irqrestore(&sc->lock, flags);
 		break;
-	case SONY_WORKER_HOTPLUG:
-		if (sc->hotplug_worker_initialized)
-			schedule_work(&sc->hotplug_worker);
-		break;
 	}
 }
 
@@ -700,67 +599,6 @@ static int guitar_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
-static ssize_t ds4_show_poll_interval(struct device *dev,
-				struct device_attribute
-				*attr, char *buf)
-{
-	struct hid_device *hdev = to_hid_device(dev);
-	struct sony_sc *sc = hid_get_drvdata(hdev);
-
-	return snprintf(buf, PAGE_SIZE, "%i\n", sc->ds4_bt_poll_interval);
-}
-
-static ssize_t ds4_store_poll_interval(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t count)
-{
-	struct hid_device *hdev = to_hid_device(dev);
-	struct sony_sc *sc = hid_get_drvdata(hdev);
-	unsigned long flags;
-	u8 interval;
-
-	if (kstrtou8(buf, 0, &interval))
-		return -EINVAL;
-
-	if (interval > DS4_BT_MAX_POLL_INTERVAL_MS)
-		return -EINVAL;
-
-	spin_lock_irqsave(&sc->lock, flags);
-	sc->ds4_bt_poll_interval = interval;
-	spin_unlock_irqrestore(&sc->lock, flags);
-
-	sony_schedule_work(sc, SONY_WORKER_STATE);
-
-	return count;
-}
-
-static DEVICE_ATTR(bt_poll_interval, 0644, ds4_show_poll_interval,
-		ds4_store_poll_interval);
-
-static ssize_t sony_show_firmware_version(struct device *dev,
-				struct device_attribute
-				*attr, char *buf)
-{
-	struct hid_device *hdev = to_hid_device(dev);
-	struct sony_sc *sc = hid_get_drvdata(hdev);
-
-	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->fw_version);
-}
-
-static DEVICE_ATTR(firmware_version, 0444, sony_show_firmware_version, NULL);
-
-static ssize_t sony_show_hardware_version(struct device *dev,
-				struct device_attribute
-				*attr, char *buf)
-{
-	struct hid_device *hdev = to_hid_device(dev);
-	struct sony_sc *sc = hid_get_drvdata(hdev);
-
-	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->hw_version);
-}
-
-static DEVICE_ATTR(hardware_version, 0444, sony_show_hardware_version, NULL);
-
 static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
 			     unsigned int *rsize)
 {
@@ -905,37 +743,6 @@ static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return -1;
 }
 
-static int ds4_mapping(struct hid_device *hdev, struct hid_input *hi,
-		       struct hid_field *field, struct hid_usage *usage,
-		       unsigned long **bit, int *max)
-{
-	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
-		unsigned int key = usage->hid & HID_USAGE;
-
-		if (key >= ARRAY_SIZE(ds4_keymap))
-			return -1;
-
-		key = ds4_keymap[key];
-		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
-		return 1;
-	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
-		unsigned int abs = usage->hid & HID_USAGE;
-
-		/* Let the HID parser deal with the HAT. */
-		if (usage->hid == HID_GD_HATSWITCH)
-			return 0;
-
-		if (abs >= ARRAY_SIZE(ds4_absmap))
-			return -1;
-
-		abs = ds4_absmap[abs];
-		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
-		return 1;
-	}
-
-	return 0;
-}
-
 static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
 		unsigned int *rsize)
 {
@@ -1034,216 +841,6 @@ static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size)
 	}
 }
 
-static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
-{
-	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
-						struct hid_input, list);
-	struct input_dev *input_dev = hidinput->input;
-	unsigned long flags;
-	int n, m, offset, num_touch_data, max_touch_data;
-	u8 cable_state, battery_capacity;
-	int battery_status;
-	u16 timestamp;
-
-	/* When using Bluetooth the header is 2 bytes longer, so skip these. */
-	int data_offset = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 2 : 0;
-
-	/* Second bit of third button byte is for the touchpad button. */
-	offset = data_offset + DS4_INPUT_REPORT_BUTTON_OFFSET;
-	input_report_key(sc->touchpad, BTN_LEFT, rd[offset+2] & 0x2);
-
-	/*
-	 * The default behavior of the Dualshock 4 is to send reports using
-	 * report type 1 when running over Bluetooth. However, when feature
-	 * report 2 is requested during the controller initialization it starts
-	 * sending input reports in report 17. Since report 17 is undefined
-	 * in the default HID descriptor, the HID layer won't generate events.
-	 * While it is possible (and this was done before) to fixup the HID
-	 * descriptor to add this mapping, it was better to do this manually.
-	 * The reason is there were various pieces software both open and closed
-	 * source, relying on the descriptors to be the same across various
-	 * operating systems. If the descriptors wouldn't match some
-	 * applications e.g. games on Wine would not be able to function due
-	 * to different descriptors, which such applications are not parsing.
-	 */
-	if (rd[0] == 17) {
-		int value;
-
-		offset = data_offset + DS4_INPUT_REPORT_AXIS_OFFSET;
-		input_report_abs(input_dev, ABS_X, rd[offset]);
-		input_report_abs(input_dev, ABS_Y, rd[offset+1]);
-		input_report_abs(input_dev, ABS_RX, rd[offset+2]);
-		input_report_abs(input_dev, ABS_RY, rd[offset+3]);
-
-		value = rd[offset+4] & 0xf;
-		if (value > 7)
-			value = 8; /* Center 0, 0 */
-		input_report_abs(input_dev, ABS_HAT0X, ds4_hat_mapping[value].x);
-		input_report_abs(input_dev, ABS_HAT0Y, ds4_hat_mapping[value].y);
-
-		input_report_key(input_dev, BTN_WEST, rd[offset+4] & 0x10);
-		input_report_key(input_dev, BTN_SOUTH, rd[offset+4] & 0x20);
-		input_report_key(input_dev, BTN_EAST, rd[offset+4] & 0x40);
-		input_report_key(input_dev, BTN_NORTH, rd[offset+4] & 0x80);
-
-		input_report_key(input_dev, BTN_TL, rd[offset+5] & 0x1);
-		input_report_key(input_dev, BTN_TR, rd[offset+5] & 0x2);
-		input_report_key(input_dev, BTN_TL2, rd[offset+5] & 0x4);
-		input_report_key(input_dev, BTN_TR2, rd[offset+5] & 0x8);
-		input_report_key(input_dev, BTN_SELECT, rd[offset+5] & 0x10);
-		input_report_key(input_dev, BTN_START, rd[offset+5] & 0x20);
-		input_report_key(input_dev, BTN_THUMBL, rd[offset+5] & 0x40);
-		input_report_key(input_dev, BTN_THUMBR, rd[offset+5] & 0x80);
-
-		input_report_key(input_dev, BTN_MODE, rd[offset+6] & 0x1);
-
-		input_report_abs(input_dev, ABS_Z, rd[offset+7]);
-		input_report_abs(input_dev, ABS_RZ, rd[offset+8]);
-
-		input_sync(input_dev);
-	}
-
-	/* Convert timestamp (in 5.33us unit) to timestamp_us */
-	offset = data_offset + DS4_INPUT_REPORT_TIMESTAMP_OFFSET;
-	timestamp = get_unaligned_le16(&rd[offset]);
-	if (!sc->timestamp_initialized) {
-		sc->timestamp_us = ((unsigned int)timestamp * 16) / 3;
-		sc->timestamp_initialized = true;
-	} else {
-		u16 delta;
-
-		if (sc->prev_timestamp > timestamp)
-			delta = (U16_MAX - sc->prev_timestamp + timestamp + 1);
-		else
-			delta = timestamp - sc->prev_timestamp;
-		sc->timestamp_us += (delta * 16) / 3;
-	}
-	sc->prev_timestamp = timestamp;
-	input_event(sc->sensor_dev, EV_MSC, MSC_TIMESTAMP, sc->timestamp_us);
-
-	offset = data_offset + DS4_INPUT_REPORT_GYRO_X_OFFSET;
-	for (n = 0; n < 6; n++) {
-		/* Store data in int for more precision during mult_frac. */
-		int raw_data = (short)((rd[offset+1] << 8) | rd[offset]);
-		struct ds4_calibration_data *calib = &sc->ds4_calib_data[n];
-
-		/* High precision is needed during calibration, but the
-		 * calibrated values are within 32-bit.
-		 * Note: we swap numerator 'x' and 'numer' in mult_frac for
-		 *       precision reasons so we don't need 64-bit.
-		 */
-		int calib_data = mult_frac(calib->sens_numer,
-					   raw_data - calib->bias,
-					   calib->sens_denom);
-
-		input_report_abs(sc->sensor_dev, calib->abs_code, calib_data);
-		offset += 2;
-	}
-	input_sync(sc->sensor_dev);
-
-	/*
-	 * The lower 4 bits of byte 30 (or 32 for BT) contain the battery level
-	 * and the 5th bit contains the USB cable state.
-	 */
-	offset = data_offset + DS4_INPUT_REPORT_BATTERY_OFFSET;
-	cable_state = (rd[offset] >> 4) & 0x01;
-
-	/*
-	 * Interpretation of the battery_capacity data depends on the cable state.
-	 * When no cable is connected (bit4 is 0):
-	 * - 0:10: percentage in units of 10%.
-	 * When a cable is plugged in:
-	 * - 0-10: percentage in units of 10%.
-	 * - 11: battery is full
-	 * - 14: not charging due to Voltage or temperature error
-	 * - 15: charge error
-	 */
-	if (cable_state) {
-		u8 battery_data = rd[offset] & 0xf;
-
-		if (battery_data < 10) {
-			/* Take the mid-point for each battery capacity value,
-			 * because on the hardware side 0 = 0-9%, 1=10-19%, etc.
-			 * This matches official platform behavior, which does
-			 * the same.
-			 */
-			battery_capacity = battery_data * 10 + 5;
-			battery_status = POWER_SUPPLY_STATUS_CHARGING;
-		} else if (battery_data == 10) {
-			battery_capacity = 100;
-			battery_status = POWER_SUPPLY_STATUS_CHARGING;
-		} else if (battery_data == 11) {
-			battery_capacity = 100;
-			battery_status = POWER_SUPPLY_STATUS_FULL;
-		} else { /* 14, 15 and undefined values */
-			battery_capacity = 0;
-			battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
-		}
-	} else {
-		u8 battery_data = rd[offset] & 0xf;
-
-		if (battery_data < 10)
-			battery_capacity = battery_data * 10 + 5;
-		else /* 10 */
-			battery_capacity = 100;
-
-		battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
-	}
-
-	spin_lock_irqsave(&sc->lock, flags);
-	sc->battery_capacity = battery_capacity;
-	sc->battery_status = battery_status;
-	spin_unlock_irqrestore(&sc->lock, flags);
-
-	/*
-	 * The Dualshock 4 multi-touch trackpad data starts at offset 33 on USB
-	 * and 35 on Bluetooth.
-	 * The first byte indicates the number of touch data in the report.
-	 * Trackpad data starts 2 bytes later (e.g. 35 for USB).
-	 */
-	offset = data_offset + DS4_INPUT_REPORT_TOUCHPAD_OFFSET;
-	max_touch_data = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 4 : 3;
-	if (rd[offset] > 0 && rd[offset] <= max_touch_data)
-		num_touch_data = rd[offset];
-	else
-		num_touch_data = 1;
-	offset += 1;
-
-	for (m = 0; m < num_touch_data; m++) {
-		/* Skip past timestamp */
-		offset += 1;
-
-		/*
-		 * The first 7 bits of the first byte is a counter and bit 8 is
-		 * a touch indicator that is 0 when pressed and 1 when not
-		 * pressed.
-		 * The next 3 bytes are two 12 bit touch coordinates, X and Y.
-		 * The data for the second touch is in the same format and
-		 * immediately follows the data for the first.
-		 */
-		for (n = 0; n < 2; n++) {
-			u16 x, y;
-			bool active;
-
-			x = rd[offset+1] | ((rd[offset+2] & 0xF) << 8);
-			y = ((rd[offset+2] & 0xF0) >> 4) | (rd[offset+3] << 4);
-
-			active = !(rd[offset] >> 7);
-			input_mt_slot(sc->touchpad, n);
-			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);
-
-			if (active) {
-				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
-				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
-			}
-
-			offset += 4;
-		}
-		input_mt_sync_frame(sc->touchpad);
-		input_sync(sc->touchpad);
-	}
-}
-
 static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
 {
 	int n, offset, relx, rely;
@@ -1350,83 +947,6 @@ static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
 	} else if ((sc->quirks & NAVIGATION_CONTROLLER) && rd[0] == 0x01 &&
 			size == 49) {
 		sixaxis_parse_report(sc, rd, size);
-	} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
-			size == 64) {
-		dualshock4_parse_report(sc, rd, size);
-	} else if (((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && rd[0] == 0x11 &&
-			size == 78)) {
-		/* CRC check */
-		u8 bthdr = 0xA1;
-		u32 crc;
-		u32 report_crc;
-
-		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
-		crc = ~crc32_le(crc, rd, DS4_INPUT_REPORT_0x11_SIZE-4);
-		report_crc = get_unaligned_le32(&rd[DS4_INPUT_REPORT_0x11_SIZE-4]);
-		if (crc != report_crc) {
-			hid_dbg(sc->hdev, "DualShock 4 input report's CRC check failed, received crc 0x%0x != 0x%0x\n",
-				report_crc, crc);
-			return -EILSEQ;
-		}
-
-		dualshock4_parse_report(sc, rd, size);
-	} else if ((sc->quirks & DUALSHOCK4_DONGLE) && rd[0] == 0x01 &&
-			size == 64) {
-		unsigned long flags;
-		enum ds4_dongle_state dongle_state;
-
-		/*
-		 * In the case of a DS4 USB dongle, bit[2] of byte 31 indicates
-		 * if a DS4 is actually connected (indicated by '0').
-		 * For non-dongle, this bit is always 0 (connected).
-		 */
-		bool connected = (rd[31] & 0x04) ? false : true;
-
-		spin_lock_irqsave(&sc->lock, flags);
-		dongle_state = sc->ds4_dongle_state;
-		spin_unlock_irqrestore(&sc->lock, flags);
-
-		/*
-		 * The dongle always sends input reports even when no
-		 * DS4 is attached. When a DS4 is connected, we need to
-		 * obtain calibration data before we can use it.
-		 * The code below tracks dongle state and kicks of
-		 * calibration when needed and only allows us to process
-		 * input if a DS4 is actually connected.
-		 */
-		if (dongle_state == DONGLE_DISCONNECTED && connected) {
-			hid_info(sc->hdev, "DualShock 4 USB dongle: controller connected\n");
-			sony_set_leds(sc);
-
-			spin_lock_irqsave(&sc->lock, flags);
-			sc->ds4_dongle_state = DONGLE_CALIBRATING;
-			spin_unlock_irqrestore(&sc->lock, flags);
-
-			sony_schedule_work(sc, SONY_WORKER_HOTPLUG);
-
-			/* Don't process the report since we don't have
-			 * calibration data, but let hidraw have it anyway.
-			 */
-			return 0;
-		} else if ((dongle_state == DONGLE_CONNECTED ||
-			    dongle_state == DONGLE_DISABLED) && !connected) {
-			hid_info(sc->hdev, "DualShock 4 USB dongle: controller disconnected\n");
-
-			spin_lock_irqsave(&sc->lock, flags);
-			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
-			spin_unlock_irqrestore(&sc->lock, flags);
-
-			/* Return 0, so hidraw can get the report. */
-			return 0;
-		} else if (dongle_state == DONGLE_CALIBRATING ||
-			   dongle_state == DONGLE_DISABLED ||
-			   dongle_state == DONGLE_DISCONNECTED) {
-			/* Return 0, so hidraw can get the report. */
-			return 0;
-		}
-
-		dualshock4_parse_report(sc, rd, size);
-
 	} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
 		nsg_mrxu_parse_report(sc, rd, size);
 		return 1;
@@ -1478,9 +998,6 @@ static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
 	if (sc->quirks & SIXAXIS_CONTROLLER)
 		return sixaxis_mapping(hdev, hi, field, usage, bit, max);
 
-	if (sc->quirks & DUALSHOCK4_CONTROLLER)
-		return ds4_mapping(hdev, hi, field, usage, bit, max);
-
 	if (sc->quirks & GH_GUITAR_CONTROLLER)
 		return guitar_mapping(hdev, hi, field, usage, bit, max);
 
@@ -1508,14 +1025,17 @@ static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
 	sc->touchpad->id.product = sc->hdev->product;
 	sc->touchpad->id.version = sc->hdev->version;
 
-	/* Append a suffix to the controller name as there are various
-	 * DS4 compatible non-Sony devices with different names.
+	/* This suffix was originally apended when hid-sony also
+	 * supported DS4 devices. The DS4 was implemented using multiple
+	 * evdev nodes and hence had the need to separete them out using
+	 * a suffix. Other devices which were added later like Sony TV remotes
+	 * inhirited this suffix.
 	 */
-	name_sz = strlen(sc->hdev->name) + sizeof(DS4_TOUCHPAD_SUFFIX);
+	name_sz = strlen(sc->hdev->name) + sizeof(TOUCHPAD_SUFFIX);
 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
 	if (!name)
 		return -ENOMEM;
-	snprintf(name, name_sz, "%s" DS4_TOUCHPAD_SUFFIX, sc->hdev->name);
+	snprintf(name, name_sz, "%s" TOUCHPAD_SUFFIX, sc->hdev->name);
 	sc->touchpad->name = name;
 
 	/* We map the button underneath the touchpad to BTN_LEFT. */
@@ -1557,7 +1077,6 @@ static int sony_register_sensors(struct sony_sc *sc)
 	size_t name_sz;
 	char *name;
 	int ret;
-	int range;
 
 	sc->sensor_dev = devm_input_allocate_device(&sc->hdev->dev);
 	if (!sc->sensor_dev)
@@ -1595,25 +1114,6 @@ static int sony_register_sensors(struct sony_sc *sc)
 		input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);
 		input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);
 		input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);
-	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
-		range = DS4_ACC_RES_PER_G*4;
-		input_set_abs_params(sc->sensor_dev, ABS_X, -range, range, 16, 0);
-		input_set_abs_params(sc->sensor_dev, ABS_Y, -range, range, 16, 0);
-		input_set_abs_params(sc->sensor_dev, ABS_Z, -range, range, 16, 0);
-		input_abs_set_res(sc->sensor_dev, ABS_X, DS4_ACC_RES_PER_G);
-		input_abs_set_res(sc->sensor_dev, ABS_Y, DS4_ACC_RES_PER_G);
-		input_abs_set_res(sc->sensor_dev, ABS_Z, DS4_ACC_RES_PER_G);
-
-		range = DS4_GYRO_RES_PER_DEG_S*2048;
-		input_set_abs_params(sc->sensor_dev, ABS_RX, -range, range, 16, 0);
-		input_set_abs_params(sc->sensor_dev, ABS_RY, -range, range, 16, 0);
-		input_set_abs_params(sc->sensor_dev, ABS_RZ, -range, range, 16, 0);
-		input_abs_set_res(sc->sensor_dev, ABS_RX, DS4_GYRO_RES_PER_DEG_S);
-		input_abs_set_res(sc->sensor_dev, ABS_RY, DS4_GYRO_RES_PER_DEG_S);
-		input_abs_set_res(sc->sensor_dev, ABS_RZ, DS4_GYRO_RES_PER_DEG_S);
-
-		__set_bit(EV_MSC, sc->sensor_dev->evbit);
-		__set_bit(MSC_TIMESTAMP, sc->sensor_dev->mscbit);
 	}
 
 	__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);
@@ -1697,224 +1197,6 @@ static int sixaxis_set_operational_bt(struct hid_device *hdev)
 	return ret;
 }
 
-/*
- * Request DS4 calibration data for the motion sensors.
- * For Bluetooth this also affects the operating mode (see below).
- */
-static int dualshock4_get_calibration_data(struct sony_sc *sc)
-{
-	u8 *buf;
-	int ret;
-	short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
-	short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
-	short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
-	short gyro_speed_plus, gyro_speed_minus;
-	short acc_x_plus, acc_x_minus;
-	short acc_y_plus, acc_y_minus;
-	short acc_z_plus, acc_z_minus;
-	int speed_2x;
-	int range_2g;
-
-	/* For Bluetooth we use a different request, which supports CRC.
-	 * Note: in Bluetooth mode feature report 0x02 also changes the state
-	 * of the controller, so that it sends input reports of type 0x11.
-	 */
-	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
-		int retries;
-
-		buf = kmalloc(DS4_FEATURE_REPORT_0x02_SIZE, GFP_KERNEL);
-		if (!buf)
-			return -ENOMEM;
-
-		/* We should normally receive the feature report data we asked
-		 * for, but hidraw applications such as Steam can issue feature
-		 * reports as well. In particular for Dongle reconnects, Steam
-		 * and this function are competing resulting in often receiving
-		 * data for a different HID report, so retry a few times.
-		 */
-		for (retries = 0; retries < 3; retries++) {
-			ret = hid_hw_raw_request(sc->hdev, 0x02, buf,
-						 DS4_FEATURE_REPORT_0x02_SIZE,
-						 HID_FEATURE_REPORT,
-						 HID_REQ_GET_REPORT);
-			if (ret < 0)
-				goto err_stop;
-
-			if (buf[0] != 0x02) {
-				if (retries < 2) {
-					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report (0x02) request\n");
-					continue;
-				} else {
-					ret = -EILSEQ;
-					goto err_stop;
-				}
-			} else {
-				break;
-			}
-		}
-	} else {
-		u8 bthdr = 0xA3;
-		u32 crc;
-		u32 report_crc;
-		int retries;
-
-		buf = kmalloc(DS4_FEATURE_REPORT_0x05_SIZE, GFP_KERNEL);
-		if (!buf)
-			return -ENOMEM;
-
-		for (retries = 0; retries < 3; retries++) {
-			ret = hid_hw_raw_request(sc->hdev, 0x05, buf,
-						 DS4_FEATURE_REPORT_0x05_SIZE,
-						 HID_FEATURE_REPORT,
-						 HID_REQ_GET_REPORT);
-			if (ret < 0)
-				goto err_stop;
-
-			/* CRC check */
-			crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
-			crc = ~crc32_le(crc, buf, DS4_FEATURE_REPORT_0x05_SIZE-4);
-			report_crc = get_unaligned_le32(&buf[DS4_FEATURE_REPORT_0x05_SIZE-4]);
-			if (crc != report_crc) {
-				hid_warn(sc->hdev, "DualShock 4 calibration report's CRC check failed, received crc 0x%0x != 0x%0x\n",
-					report_crc, crc);
-				if (retries < 2) {
-					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report request\n");
-					continue;
-				} else {
-					ret = -EILSEQ;
-					goto err_stop;
-				}
-			} else {
-				break;
-			}
-		}
-	}
-
-	gyro_pitch_bias  = get_unaligned_le16(&buf[1]);
-	gyro_yaw_bias    = get_unaligned_le16(&buf[3]);
-	gyro_roll_bias   = get_unaligned_le16(&buf[5]);
-	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
-		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
-		gyro_pitch_minus = get_unaligned_le16(&buf[9]);
-		gyro_yaw_plus    = get_unaligned_le16(&buf[11]);
-		gyro_yaw_minus   = get_unaligned_le16(&buf[13]);
-		gyro_roll_plus   = get_unaligned_le16(&buf[15]);
-		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
-	} else {
-		/* BT + Dongle */
-		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
-		gyro_yaw_plus    = get_unaligned_le16(&buf[9]);
-		gyro_roll_plus   = get_unaligned_le16(&buf[11]);
-		gyro_pitch_minus = get_unaligned_le16(&buf[13]);
-		gyro_yaw_minus   = get_unaligned_le16(&buf[15]);
-		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
-	}
-	gyro_speed_plus  = get_unaligned_le16(&buf[19]);
-	gyro_speed_minus = get_unaligned_le16(&buf[21]);
-	acc_x_plus       = get_unaligned_le16(&buf[23]);
-	acc_x_minus      = get_unaligned_le16(&buf[25]);
-	acc_y_plus       = get_unaligned_le16(&buf[27]);
-	acc_y_minus      = get_unaligned_le16(&buf[29]);
-	acc_z_plus       = get_unaligned_le16(&buf[31]);
-	acc_z_minus      = get_unaligned_le16(&buf[33]);
-
-	/* Set gyroscope calibration and normalization parameters.
-	 * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s.
-	 */
-	speed_2x = (gyro_speed_plus + gyro_speed_minus);
-	sc->ds4_calib_data[0].abs_code = ABS_RX;
-	sc->ds4_calib_data[0].bias = gyro_pitch_bias;
-	sc->ds4_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
-	sc->ds4_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;
-
-	sc->ds4_calib_data[1].abs_code = ABS_RY;
-	sc->ds4_calib_data[1].bias = gyro_yaw_bias;
-	sc->ds4_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
-	sc->ds4_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;
-
-	sc->ds4_calib_data[2].abs_code = ABS_RZ;
-	sc->ds4_calib_data[2].bias = gyro_roll_bias;
-	sc->ds4_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
-	sc->ds4_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;
-
-	/* Set accelerometer calibration and normalization parameters.
-	 * Data values will be normalized to 1/DS4_ACC_RES_PER_G G.
-	 */
-	range_2g = acc_x_plus - acc_x_minus;
-	sc->ds4_calib_data[3].abs_code = ABS_X;
-	sc->ds4_calib_data[3].bias = acc_x_plus - range_2g / 2;
-	sc->ds4_calib_data[3].sens_numer = 2*DS4_ACC_RES_PER_G;
-	sc->ds4_calib_data[3].sens_denom = range_2g;
-
-	range_2g = acc_y_plus - acc_y_minus;
-	sc->ds4_calib_data[4].abs_code = ABS_Y;
-	sc->ds4_calib_data[4].bias = acc_y_plus - range_2g / 2;
-	sc->ds4_calib_data[4].sens_numer = 2*DS4_ACC_RES_PER_G;
-	sc->ds4_calib_data[4].sens_denom = range_2g;
-
-	range_2g = acc_z_plus - acc_z_minus;
-	sc->ds4_calib_data[5].abs_code = ABS_Z;
-	sc->ds4_calib_data[5].bias = acc_z_plus - range_2g / 2;
-	sc->ds4_calib_data[5].sens_numer = 2*DS4_ACC_RES_PER_G;
-	sc->ds4_calib_data[5].sens_denom = range_2g;
-
-err_stop:
-	kfree(buf);
-	return ret;
-}
-
-static void dualshock4_calibration_work(struct work_struct *work)
-{
-	struct sony_sc *sc = container_of(work, struct sony_sc, hotplug_worker);
-	unsigned long flags;
-	enum ds4_dongle_state dongle_state;
-	int ret;
-
-	ret = dualshock4_get_calibration_data(sc);
-	if (ret < 0) {
-		/* This call is very unlikely to fail for the dongle. When it
-		 * fails we are probably in a very bad state, so mark the
-		 * dongle as disabled. We will re-enable the dongle if a new
-		 * DS4 hotplug is detect from sony_raw_event as any issues
-		 * are likely resolved then (the dongle is quite stupid).
-		 */
-		hid_err(sc->hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n");
-		dongle_state = DONGLE_DISABLED;
-	} else {
-		hid_info(sc->hdev, "DualShock 4 USB dongle: calibration completed\n");
-		dongle_state = DONGLE_CONNECTED;
-	}
-
-	spin_lock_irqsave(&sc->lock, flags);
-	sc->ds4_dongle_state = dongle_state;
-	spin_unlock_irqrestore(&sc->lock, flags);
-}
-
-static int dualshock4_get_version_info(struct sony_sc *sc)
-{
-	u8 *buf;
-	int ret;
-
-	buf = kmalloc(DS4_FEATURE_REPORT_0xA3_SIZE, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	ret = hid_hw_raw_request(sc->hdev, 0xA3, buf,
-				 DS4_FEATURE_REPORT_0xA3_SIZE,
-				 HID_FEATURE_REPORT,
-				 HID_REQ_GET_REPORT);
-	if (ret < 0) {
-		kfree(buf);
-		return ret;
-	}
-
-	sc->hw_version = get_unaligned_le16(&buf[35]);
-	sc->fw_version = get_unaligned_le16(&buf[41]);
-
-	kfree(buf);
-	return 0;
-}
-
 static void sixaxis_set_leds_from_id(struct sony_sc *sc)
 {
 	static const u8 sixaxis_leds[10][4] = {
@@ -1941,30 +1223,6 @@ static void sixaxis_set_leds_from_id(struct sony_sc *sc)
 	memcpy(sc->led_state, sixaxis_leds[id], sizeof(sixaxis_leds[id]));
 }
 
-static void dualshock4_set_leds_from_id(struct sony_sc *sc)
-{
-	/* The first 4 color/index entries match what the PS4 assigns */
-	static const u8 color_code[7][3] = {
-			/* Blue   */	{ 0x00, 0x00, 0x40 },
-			/* Red	  */	{ 0x40, 0x00, 0x00 },
-			/* Green  */	{ 0x00, 0x40, 0x00 },
-			/* Pink   */	{ 0x20, 0x00, 0x20 },
-			/* Orange */	{ 0x02, 0x01, 0x00 },
-			/* Teal   */	{ 0x00, 0x01, 0x01 },
-			/* White  */	{ 0x01, 0x01, 0x01 }
-	};
-
-	int id = sc->device_id;
-
-	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(color_code[0]));
-
-	if (id < 0)
-		return;
-
-	id %= 7;
-	memcpy(sc->led_state, color_code[id], sizeof(color_code[id]));
-}
-
 static void buzz_set_leds(struct sony_sc *sc)
 {
 	struct hid_device *hdev = sc->hdev;
@@ -2110,13 +1368,13 @@ static int sony_leds_init(struct sony_sc *sc)
 {
 	struct hid_device *hdev = sc->hdev;
 	int n, ret = 0;
-	int use_ds4_names;
+	int use_color_names;
 	struct led_classdev *led;
 	size_t name_sz;
 	char *name;
 	size_t name_len;
 	const char *name_fmt;
-	static const char * const ds4_name_str[] = { "red", "green", "blue",
+	static const char * const color_name_str[] = { "red", "green", "blue",
 						  "global" };
 	u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
 	u8 use_hw_blink[MAX_LEDS] = { 0 };
@@ -2125,25 +1383,16 @@ static int sony_leds_init(struct sony_sc *sc)
 
 	if (sc->quirks & BUZZ_CONTROLLER) {
 		sc->led_count = 4;
-		use_ds4_names = 0;
+		use_color_names = 0;
 		name_len = strlen("::buzz#");
 		name_fmt = "%s::buzz%d";
 		/* Validate expected report characteristics. */
 		if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
 			return -ENODEV;
-	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
-		dualshock4_set_leds_from_id(sc);
-		sc->led_state[3] = 1;
-		sc->led_count = 4;
-		memset(max_brightness, 255, 3);
-		use_hw_blink[3] = 1;
-		use_ds4_names = 1;
-		name_len = 0;
-		name_fmt = "%s:%s";
 	} else if (sc->quirks & MOTION_CONTROLLER) {
 		sc->led_count = 3;
 		memset(max_brightness, 255, 3);
-		use_ds4_names = 1;
+		use_color_names = 1;
 		name_len = 0;
 		name_fmt = "%s:%s";
 	} else if (sc->quirks & NAVIGATION_CONTROLLER) {
@@ -2152,14 +1401,14 @@ static int sony_leds_init(struct sony_sc *sc)
 		memcpy(sc->led_state, navigation_leds, sizeof(navigation_leds));
 		sc->led_count = 1;
 		memset(use_hw_blink, 1, 4);
-		use_ds4_names = 0;
+		use_color_names = 0;
 		name_len = strlen("::sony#");
 		name_fmt = "%s::sony%d";
 	} else {
 		sixaxis_set_leds_from_id(sc);
 		sc->led_count = 4;
 		memset(use_hw_blink, 1, 4);
-		use_ds4_names = 0;
+		use_color_names = 0;
 		name_len = strlen("::sony#");
 		name_fmt = "%s::sony%d";
 	}
@@ -2175,8 +1424,8 @@ static int sony_leds_init(struct sony_sc *sc)
 
 	for (n = 0; n < sc->led_count; n++) {
 
-		if (use_ds4_names)
-			name_sz = strlen(dev_name(&hdev->dev)) + strlen(ds4_name_str[n]) + 2;
+		if (use_color_names)
+			name_sz = strlen(dev_name(&hdev->dev)) + strlen(color_name_str[n]) + 2;
 
 		led = devm_kzalloc(&hdev->dev, sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
 		if (!led) {
@@ -2185,9 +1434,9 @@ static int sony_leds_init(struct sony_sc *sc)
 		}
 
 		name = (void *)(&led[1]);
-		if (use_ds4_names)
+		if (use_color_names)
 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev),
-			ds4_name_str[n]);
+			color_name_str[n]);
 		else
 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
 		led->name = name;
@@ -2273,68 +1522,6 @@ static void sixaxis_send_output_report(struct sony_sc *sc)
 				HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
 }
 
-static void dualshock4_send_output_report(struct sony_sc *sc)
-{
-	struct hid_device *hdev = sc->hdev;
-	u8 *buf = sc->output_report_dmabuf;
-	int offset;
-
-	/*
-	 * NOTE: The lower 6 bits of buf[1] field of the Bluetooth report
-	 * control the interval at which Dualshock 4 reports data:
-	 * 0x00 - 1ms
-	 * 0x01 - 1ms
-	 * 0x02 - 2ms
-	 * 0x3E - 62ms
-	 * 0x3F - disabled
-	 */
-	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
-		memset(buf, 0, DS4_OUTPUT_REPORT_0x05_SIZE);
-		buf[0] = 0x05;
-		buf[1] = 0x07; /* blink + LEDs + motor */
-		offset = 4;
-	} else {
-		memset(buf, 0, DS4_OUTPUT_REPORT_0x11_SIZE);
-		buf[0] = 0x11;
-		buf[1] = 0xC0 /* HID + CRC */ | sc->ds4_bt_poll_interval;
-		buf[3] = 0x07; /* blink + LEDs + motor */
-		offset = 6;
-	}
-
-#ifdef CONFIG_SONY_FF
-	buf[offset++] = sc->right;
-	buf[offset++] = sc->left;
-#else
-	offset += 2;
-#endif
-
-	/* LED 3 is the global control */
-	if (sc->led_state[3]) {
-		buf[offset++] = sc->led_state[0];
-		buf[offset++] = sc->led_state[1];
-		buf[offset++] = sc->led_state[2];
-	} else {
-		offset += 3;
-	}
-
-	/* If both delay values are zero the DualShock 4 disables blinking. */
-	buf[offset++] = sc->led_delay_on[3];
-	buf[offset++] = sc->led_delay_off[3];
-
-	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
-		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x05_SIZE);
-	else {
-		/* CRC generation */
-		u8 bthdr = 0xA2;
-		u32 crc;
-
-		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
-		crc = ~crc32_le(crc, buf, DS4_OUTPUT_REPORT_0x11_SIZE-4);
-		put_unaligned_le32(crc, &buf[74]);
-		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x11_SIZE);
-	}
-}
-
 static void motion_send_output_report(struct sony_sc *sc)
 {
 	struct hid_device *hdev = sc->hdev;
@@ -2378,14 +1565,6 @@ static int sony_allocate_output_report(struct sony_sc *sc)
 			devm_kmalloc(&sc->hdev->dev,
 				sizeof(union sixaxis_output_report_01),
 				GFP_KERNEL);
-	else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
-		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
-						DS4_OUTPUT_REPORT_0x11_SIZE,
-						GFP_KERNEL);
-	else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
-		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
-						DS4_OUTPUT_REPORT_0x05_SIZE,
-						GFP_KERNEL);
 	else if (sc->quirks & MOTION_CONTROLLER)
 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
 						MOTION_REPORT_0x02_SIZE,
@@ -2600,8 +1779,7 @@ static int sony_check_add(struct sony_sc *sc)
 	u8 *buf = NULL;
 	int n, ret;
 
-	if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
-	    (sc->quirks & MOTION_CONTROLLER_BT) ||
+	if ((sc->quirks & MOTION_CONTROLLER_BT) ||
 	    (sc->quirks & NAVIGATION_CONTROLLER_BT) ||
 	    (sc->quirks & SIXAXIS_CONTROLLER_BT)) {
 		/*
@@ -2614,30 +1792,6 @@ static int sony_check_add(struct sony_sc *sc)
 			hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
 			return 0;
 		}
-	} else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
-		buf = kmalloc(DS4_FEATURE_REPORT_0x81_SIZE, GFP_KERNEL);
-		if (!buf)
-			return -ENOMEM;
-
-		/*
-		 * The MAC address of a DS4 controller connected via USB can be
-		 * retrieved with feature report 0x81. The address begins at
-		 * offset 1.
-		 */
-		ret = hid_hw_raw_request(sc->hdev, 0x81, buf,
-				DS4_FEATURE_REPORT_0x81_SIZE, HID_FEATURE_REPORT,
-				HID_REQ_GET_REPORT);
-
-		if (ret != DS4_FEATURE_REPORT_0x81_SIZE) {
-			hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
-			ret = ret < 0 ? ret : -EINVAL;
-			goto out_free;
-		}
-
-		memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
-
-		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
-			 "%pMR", sc->mac_address);
 	} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
 			(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
 		buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
@@ -2686,11 +1840,10 @@ static int sony_set_device_id(struct sony_sc *sc)
 	int ret;
 
 	/*
-	 * Only DualShock 4 or Sixaxis controllers get an id.
+	 * Only Sixaxis controllers get an id.
 	 * All others are set to -1.
 	 */
-	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
-	    (sc->quirks & DUALSHOCK4_CONTROLLER)) {
+	if (sc->quirks & SIXAXIS_CONTROLLER) {
 		ret = ida_simple_get(&sony_device_id_allocator, 0, 0,
 					GFP_KERNEL);
 		if (ret < 0) {
@@ -2728,8 +1881,6 @@ static inline void sony_cancel_work_sync(struct sony_sc *sc)
 {
 	unsigned long flags;
 
-	if (sc->hotplug_worker_initialized)
-		cancel_work_sync(&sc->hotplug_worker);
 	if (sc->state_worker_initialized) {
 		spin_lock_irqsave(&sc->lock, flags);
 		sc->state_worker_initialized = 0;
@@ -2849,68 +2000,6 @@ static int sony_input_configured(struct hid_device *hdev,
 		}
 
 		sony_init_output_report(sc, sixaxis_send_output_report);
-	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
-		ret = dualshock4_get_calibration_data(sc);
-		if (ret < 0) {
-			hid_err(hdev, "Failed to get calibration data from Dualshock 4\n");
-			goto err_stop;
-		}
-
-		ret = dualshock4_get_version_info(sc);
-		if (ret < 0) {
-			hid_err(sc->hdev, "Failed to get version data from Dualshock 4\n");
-			goto err_stop;
-		}
-
-		ret = device_create_file(&sc->hdev->dev, &dev_attr_firmware_version);
-		if (ret) {
-			hid_err(sc->hdev, "can't create sysfs firmware_version attribute err: %d\n", ret);
-			goto err_stop;
-		}
-		sc->fw_version_created = true;
-
-		ret = device_create_file(&sc->hdev->dev, &dev_attr_hardware_version);
-		if (ret) {
-			hid_err(sc->hdev, "can't create sysfs hardware_version attribute err: %d\n", ret);
-			goto err_stop;
-		}
-		sc->hw_version_created = true;
-
-		/*
-		 * The Dualshock 4 touchpad supports 2 touches and has a
-		 * resolution of 1920x942 (44.86 dots/mm).
-		 */
-		ret = sony_register_touchpad(sc, 2, 1920, 942, 0, 0, 0);
-		if (ret) {
-			hid_err(sc->hdev,
-			"Unable to initialize multi-touch slots: %d\n",
-			ret);
-			goto err_stop;
-		}
-
-		ret = sony_register_sensors(sc);
-		if (ret) {
-			hid_err(sc->hdev,
-			"Unable to initialize motion sensors: %d\n", ret);
-			goto err_stop;
-		}
-
-		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
-			sc->ds4_bt_poll_interval = DS4_BT_DEFAULT_POLL_INTERVAL_MS;
-			ret = device_create_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
-			if (ret)
-				hid_warn(sc->hdev,
-				 "can't create sysfs bt_poll_interval attribute err: %d\n",
-				 ret);
-		}
-
-		if (sc->quirks & DUALSHOCK4_DONGLE) {
-			INIT_WORK(&sc->hotplug_worker, dualshock4_calibration_work);
-			sc->hotplug_worker_initialized = 1;
-			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
-		}
-
-		sony_init_output_report(sc, dualshock4_send_output_report);
 	} else if (sc->quirks & NSG_MRXU_REMOTE) {
 		/*
 		 * The NSG-MRxU touchpad supports 2 touches and has a
@@ -2960,16 +2049,6 @@ static int sony_input_configured(struct hid_device *hdev,
 err_close:
 	hid_hw_close(hdev);
 err_stop:
-	/* Piggy back on the default ds4_bt_ poll_interval to determine
-	 * if we need to remove the file as we don't know for sure if we
-	 * executed that logic.
-	 */
-	if (sc->ds4_bt_poll_interval)
-		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
-	if (sc->fw_version_created)
-		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
-	if (sc->hw_version_created)
-		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
 	sony_cancel_work_sync(sc);
 	sony_remove_dev_list(sc);
 	sony_release_device_id(sc);
@@ -3014,13 +2093,13 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	else if (sc->quirks & SIXAXIS_CONTROLLER)
 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
 
-	/* Patch the hw version on DS3/4 compatible devices, so applications can
+	/* Patch the hw version on DS3 compatible devices, so applications can
 	 * distinguish between the default HID mappings and the mappings defined
 	 * by the Linux game controller spec. This is important for the SDL2
 	 * library, which has a game controller database, which uses device ids
 	 * in combination with version as a key.
 	 */
-	if (sc->quirks & (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER))
+	if (sc->quirks & SIXAXIS_CONTROLLER)
 		hdev->version |= 0x8000;
 
 	ret = hid_hw_start(hdev, connect_mask);
@@ -3091,15 +2170,6 @@ static void sony_remove(struct hid_device *hdev)
 
 	hid_hw_close(hdev);
 
-	if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
-		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
-
-	if (sc->fw_version_created)
-		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
-
-	if (sc->hw_version_created)
-		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
-
 	sony_cancel_work_sync(sc);
 
 	sony_remove_dev_list(sc);
@@ -3180,17 +2250,6 @@ static const struct hid_device_id sony_devices[] = {
 	/* SMK-Link PS3 BD Remote Control */
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE),
 		.driver_data = PS3REMOTE },
-	/* Sony Dualshock 4 controllers for PS4 */
-	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
-		.driver_data = DUALSHOCK4_CONTROLLER_USB },
-	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
-		.driver_data = DUALSHOCK4_CONTROLLER_BT },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
-		.driver_data = DUALSHOCK4_CONTROLLER_USB },
-	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
-		.driver_data = DUALSHOCK4_CONTROLLER_BT },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
-		.driver_data = DUALSHOCK4_DONGLE },
 	/* Nyko Core Controller for PS3 */
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
 		.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c
index 8ee43cb225fc..b110818fc945 100644
--- a/drivers/hid/hid-steam.c
+++ b/drivers/hid/hid-steam.c
@@ -3,6 +3,7 @@
  * HID driver for Valve Steam Controller
  *
  * Copyright (c) 2018 Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
+ * Copyright (c) 2022 Valve Software
  *
  * Supports both the wired and wireless interfaces.
  *
@@ -53,6 +54,7 @@ static DEFINE_MUTEX(steam_devices_lock);
 static LIST_HEAD(steam_devices);
 
 #define STEAM_QUIRK_WIRELESS		BIT(0)
+#define STEAM_QUIRK_DECK		BIT(1)
 
 /* Touch pads are 40 mm in diameter and 65535 units */
 #define STEAM_PAD_RESOLUTION 1638
@@ -60,6 +62,10 @@ static LIST_HEAD(steam_devices);
 #define STEAM_TRIGGER_RESOLUTION 51
 /* Joystick runs are about 5 mm and 256 units */
 #define STEAM_JOYSTICK_RESOLUTION 51
+/* Trigger runs are about 6 mm and 32768 units */
+#define STEAM_DECK_TRIGGER_RESOLUTION 5461
+/* Joystick runs are about 5 mm and 32768 units */
+#define STEAM_DECK_JOYSTICK_RESOLUTION 6553
 
 #define STEAM_PAD_FUZZ 256
 
@@ -85,6 +91,7 @@ static LIST_HEAD(steam_devices);
 #define STEAM_CMD_FORCEFEEDBAK		0x8f
 #define STEAM_CMD_REQUEST_COMM_STATUS	0xb4
 #define STEAM_CMD_GET_SERIAL		0xae
+#define STEAM_CMD_HAPTIC_RUMBLE		0xeb
 
 /* Some useful register ids */
 #define STEAM_REG_LPAD_MODE		0x07
@@ -92,11 +99,14 @@ static LIST_HEAD(steam_devices);
 #define STEAM_REG_RPAD_MARGIN		0x18
 #define STEAM_REG_LED			0x2d
 #define STEAM_REG_GYRO_MODE		0x30
+#define STEAM_REG_LPAD_CLICK_PRESSURE	0x34
+#define STEAM_REG_RPAD_CLICK_PRESSURE	0x35
 
 /* Raw event identifiers */
 #define STEAM_EV_INPUT_DATA		0x01
 #define STEAM_EV_CONNECT		0x03
 #define STEAM_EV_BATTERY		0x04
+#define STEAM_EV_DECK_INPUT_DATA	0x09
 
 /* Values for GYRO_MODE (bitmask) */
 #define STEAM_GYRO_MODE_OFF		0x0000
@@ -124,6 +134,10 @@ struct steam_device {
 	struct power_supply __rcu *battery;
 	u8 battery_charge;
 	u16 voltage;
+	struct delayed_work heartbeat;
+	struct work_struct rumble_work;
+	u16 rumble_left;
+	u16 rumble_right;
 };
 
 static int steam_recv_report(struct steam_device *steam,
@@ -193,7 +207,7 @@ static int steam_send_report(struct steam_device *steam,
 	 */
 	do {
 		ret = hid_hw_raw_request(steam->hdev, 0,
-				buf, size + 1,
+				buf, max(size, 64) + 1,
 				HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 		if (ret != -EPIPE)
 			break;
@@ -219,6 +233,7 @@ static int steam_write_registers(struct steam_device *steam,
 	u8 reg;
 	u16 val;
 	u8 cmd[64] = {STEAM_CMD_WRITE_REGISTER, 0x00};
+	int ret;
 	va_list args;
 
 	va_start(args, steam);
@@ -234,7 +249,16 @@ static int steam_write_registers(struct steam_device *steam,
 	}
 	va_end(args);
 
-	return steam_send_report(steam, cmd, 2 + cmd[1]);
+	ret = steam_send_report(steam, cmd, 2 + cmd[1]);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Sometimes a lingering report for this command can
+	 * get read back instead of the last set report if
+	 * this isn't explicitly queried
+	 */
+	return steam_recv_report(steam, cmd, 2 + cmd[1]);
 }
 
 static int steam_get_serial(struct steam_device *steam)
@@ -270,6 +294,45 @@ static inline int steam_request_conn_status(struct steam_device *steam)
 	return steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS);
 }
 
+static inline int steam_haptic_rumble(struct steam_device *steam,
+				u16 intensity, u16 left_speed, u16 right_speed,
+				u8 left_gain, u8 right_gain)
+{
+	u8 report[11] = {STEAM_CMD_HAPTIC_RUMBLE, 9};
+
+	report[3] = intensity & 0xFF;
+	report[4] = intensity >> 8;
+	report[5] = left_speed & 0xFF;
+	report[6] = left_speed >> 8;
+	report[7] = right_speed & 0xFF;
+	report[8] = right_speed >> 8;
+	report[9] = left_gain;
+	report[10] = right_gain;
+
+	return steam_send_report(steam, report, sizeof(report));
+}
+
+static void steam_haptic_rumble_cb(struct work_struct *work)
+{
+	struct steam_device *steam = container_of(work, struct steam_device,
+							rumble_work);
+	steam_haptic_rumble(steam, 0, steam->rumble_left,
+		steam->rumble_right, 2, 0);
+}
+
+#ifdef CONFIG_STEAM_FF
+static int steam_play_effect(struct input_dev *dev, void *data,
+				struct ff_effect *effect)
+{
+	struct steam_device *steam = input_get_drvdata(dev);
+
+	steam->rumble_left = effect->u.rumble.strong_magnitude;
+	steam->rumble_right = effect->u.rumble.weak_magnitude;
+
+	return schedule_work(&steam->rumble_work);
+}
+#endif
+
 static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
 {
 	if (enable) {
@@ -280,13 +343,33 @@ static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
 		steam_write_registers(steam,
 			STEAM_REG_RPAD_MARGIN, 0x01, /* enable margin */
 			0);
+
+		cancel_delayed_work_sync(&steam->heartbeat);
 	} else {
 		/* disable esc, enter, cursor */
 		steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);
-		steam_write_registers(steam,
-			STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
-			STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
-			0);
+
+		if (steam->quirks & STEAM_QUIRK_DECK) {
+			steam_write_registers(steam,
+				STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
+				STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
+				STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
+				STEAM_REG_LPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
+				STEAM_REG_RPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
+				0);
+			/*
+			 * The Steam Deck has a watchdog that automatically enables
+			 * lizard mode if it doesn't see any traffic for too long
+			 */
+			if (!work_busy(&steam->heartbeat.work))
+				schedule_delayed_work(&steam->heartbeat, 5 * HZ);
+		} else {
+			steam_write_registers(steam,
+				STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
+				STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
+				STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
+				0);
+		}
 	}
 }
 
@@ -413,8 +496,8 @@ static int steam_input_register(struct steam_device *steam)
 	input->open = steam_input_open;
 	input->close = steam_input_close;
 
-	input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ?
-		"Wireless Steam Controller" :
+	input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ? "Wireless Steam Controller" :
+		(steam->quirks & STEAM_QUIRK_DECK) ? "Steam Deck" :
 		"Steam Controller";
 	input->phys = hdev->phys;
 	input->uniq = steam->serial_no;
@@ -438,33 +521,76 @@ static int steam_input_register(struct steam_device *steam)
 	input_set_capability(input, EV_KEY, BTN_SELECT);
 	input_set_capability(input, EV_KEY, BTN_MODE);
 	input_set_capability(input, EV_KEY, BTN_START);
-	input_set_capability(input, EV_KEY, BTN_GEAR_DOWN);
-	input_set_capability(input, EV_KEY, BTN_GEAR_UP);
 	input_set_capability(input, EV_KEY, BTN_THUMBR);
 	input_set_capability(input, EV_KEY, BTN_THUMBL);
 	input_set_capability(input, EV_KEY, BTN_THUMB);
 	input_set_capability(input, EV_KEY, BTN_THUMB2);
+	if (steam->quirks & STEAM_QUIRK_DECK) {
+		input_set_capability(input, EV_KEY, BTN_BASE);
+		input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY1);
+		input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY2);
+		input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY3);
+		input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY4);
+	} else {
+		input_set_capability(input, EV_KEY, BTN_GEAR_DOWN);
+		input_set_capability(input, EV_KEY, BTN_GEAR_UP);
+	}
 
-	input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0);
-	input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0);
 	input_set_abs_params(input, ABS_X, -32767, 32767, 0, 0);
 	input_set_abs_params(input, ABS_Y, -32767, 32767, 0, 0);
-	input_set_abs_params(input, ABS_RX, -32767, 32767,
-			STEAM_PAD_FUZZ, 0);
-	input_set_abs_params(input, ABS_RY, -32767, 32767,
-			STEAM_PAD_FUZZ, 0);
+
 	input_set_abs_params(input, ABS_HAT0X, -32767, 32767,
 			STEAM_PAD_FUZZ, 0);
 	input_set_abs_params(input, ABS_HAT0Y, -32767, 32767,
 			STEAM_PAD_FUZZ, 0);
-	input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION);
-	input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION);
-	input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION);
-	input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION);
+
+	if (steam->quirks & STEAM_QUIRK_DECK) {
+		input_set_abs_params(input, ABS_HAT2Y, 0, 32767, 0, 0);
+		input_set_abs_params(input, ABS_HAT2X, 0, 32767, 0, 0);
+
+		input_set_abs_params(input, ABS_RX, -32767, 32767, 0, 0);
+		input_set_abs_params(input, ABS_RY, -32767, 32767, 0, 0);
+
+		input_set_abs_params(input, ABS_HAT1X, -32767, 32767,
+				STEAM_PAD_FUZZ, 0);
+		input_set_abs_params(input, ABS_HAT1Y, -32767, 32767,
+				STEAM_PAD_FUZZ, 0);
+
+		input_abs_set_res(input, ABS_X, STEAM_DECK_JOYSTICK_RESOLUTION);
+		input_abs_set_res(input, ABS_Y, STEAM_DECK_JOYSTICK_RESOLUTION);
+		input_abs_set_res(input, ABS_RX, STEAM_DECK_JOYSTICK_RESOLUTION);
+		input_abs_set_res(input, ABS_RY, STEAM_DECK_JOYSTICK_RESOLUTION);
+		input_abs_set_res(input, ABS_HAT1X, STEAM_PAD_RESOLUTION);
+		input_abs_set_res(input, ABS_HAT1Y, STEAM_PAD_RESOLUTION);
+		input_abs_set_res(input, ABS_HAT2Y, STEAM_DECK_TRIGGER_RESOLUTION);
+		input_abs_set_res(input, ABS_HAT2X, STEAM_DECK_TRIGGER_RESOLUTION);
+	} else {
+		input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0);
+		input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0);
+
+		input_set_abs_params(input, ABS_RX, -32767, 32767,
+				STEAM_PAD_FUZZ, 0);
+		input_set_abs_params(input, ABS_RY, -32767, 32767,
+				STEAM_PAD_FUZZ, 0);
+
+		input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION);
+		input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION);
+		input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION);
+		input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION);
+		input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION);
+		input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION);
+	}
 	input_abs_set_res(input, ABS_HAT0X, STEAM_PAD_RESOLUTION);
 	input_abs_set_res(input, ABS_HAT0Y, STEAM_PAD_RESOLUTION);
-	input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION);
-	input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION);
+
+#ifdef CONFIG_STEAM_FF
+	if (steam->quirks & STEAM_QUIRK_DECK) {
+		input_set_capability(input, EV_FF, FF_RUMBLE);
+		ret = input_ff_create_memless(input, NULL, steam_play_effect);
+		if (ret)
+			goto input_register_fail;
+	}
+#endif
 
 	ret = input_register_device(input);
 	if (ret)
@@ -612,6 +738,22 @@ static bool steam_is_valve_interface(struct hid_device *hdev)
 	return !list_empty(&rep_enum->report_list);
 }
 
+static void steam_lizard_mode_heartbeat(struct work_struct *work)
+{
+	struct steam_device *steam = container_of(work, struct steam_device,
+							heartbeat.work);
+
+	mutex_lock(&steam->mutex);
+	if (!steam->client_opened && steam->client_hdev) {
+		steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);
+		steam_write_registers(steam,
+			STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
+			0);
+		schedule_delayed_work(&steam->heartbeat, 5 * HZ);
+	}
+	mutex_unlock(&steam->mutex);
+}
+
 static int steam_client_ll_parse(struct hid_device *hdev)
 {
 	struct steam_device *steam = hdev->driver_data;
@@ -674,7 +816,7 @@ static int steam_client_ll_raw_request(struct hid_device *hdev,
 			report_type, reqtype);
 }
 
-static struct hid_ll_driver steam_client_ll_driver = {
+static const struct hid_ll_driver steam_client_ll_driver = {
 	.parse = steam_client_ll_parse,
 	.start = steam_client_ll_start,
 	.stop = steam_client_ll_stop,
@@ -750,6 +892,8 @@ static int steam_probe(struct hid_device *hdev,
 	steam->quirks = id->driver_data;
 	INIT_WORK(&steam->work_connect, steam_work_connect_cb);
 	INIT_LIST_HEAD(&steam->list);
+	INIT_DEFERRABLE_WORK(&steam->heartbeat, steam_lizard_mode_heartbeat);
+	INIT_WORK(&steam->rumble_work, steam_haptic_rumble_cb);
 
 	steam->client_hdev = steam_create_client_hid(hdev);
 	if (IS_ERR(steam->client_hdev)) {
@@ -805,6 +949,8 @@ hid_hw_start_fail:
 	hid_destroy_device(steam->client_hdev);
 client_hdev_fail:
 	cancel_work_sync(&steam->work_connect);
+	cancel_delayed_work_sync(&steam->heartbeat);
+	cancel_work_sync(&steam->rumble_work);
 steam_alloc_fail:
 	hid_err(hdev, "%s: failed with error %d\n",
 			__func__, ret);
@@ -821,7 +967,11 @@ static void steam_remove(struct hid_device *hdev)
 	}
 
 	hid_destroy_device(steam->client_hdev);
+	mutex_lock(&steam->mutex);
+	steam->client_hdev = NULL;
 	steam->client_opened = false;
+	cancel_delayed_work_sync(&steam->heartbeat);
+	mutex_unlock(&steam->mutex);
 	cancel_work_sync(&steam->work_connect);
 	if (steam->quirks & STEAM_QUIRK_WIRELESS) {
 		hid_info(hdev, "Steam wireless receiver disconnected");
@@ -906,10 +1056,10 @@ static inline s16 steam_le16(u8 *data)
  *  8.5  | BTN_B      | button B
  *  8.6  | BTN_X      | button X
  *  8.7  | BTN_A      | button A
- *  9.0  | BTN_DPAD_UP    | lef-pad up
- *  9.1  | BTN_DPAD_RIGHT | lef-pad right
- *  9.2  | BTN_DPAD_LEFT  | lef-pad left
- *  9.3  | BTN_DPAD_DOWN  | lef-pad down
+ *  9.0  | BTN_DPAD_UP    | left-pad up
+ *  9.1  | BTN_DPAD_RIGHT | left-pad right
+ *  9.2  | BTN_DPAD_LEFT  | left-pad left
+ *  9.3  | BTN_DPAD_DOWN  | left-pad down
  *  9.4  | BTN_SELECT | menu left
  *  9.5  | BTN_MODE   | steam logo
  *  9.6  | BTN_START  | menu right
@@ -994,6 +1144,172 @@ static void steam_do_input_event(struct steam_device *steam,
 }
 
 /*
+ * The size for this message payload is 56.
+ * The known values are:
+ *  Offset| Type  | Mapped to |Meaning
+ * -------+-------+-----------+--------------------------
+ *  4-7   | u32   | --        | sequence number
+ *  8-15  | u64   | see below | buttons
+ *  16-17 | s16   | ABS_HAT0X | left-pad X value
+ *  18-19 | s16   | ABS_HAT0Y | left-pad Y value
+ *  20-21 | s16   | ABS_HAT1X | right-pad X value
+ *  22-23 | s16   | ABS_HAT1Y | right-pad Y value
+ *  24-25 | s16   | --        | accelerometer X value
+ *  26-27 | s16   | --        | accelerometer Y value
+ *  28-29 | s16   | --        | accelerometer Z value
+ *  30-31 | s16   | --        | gyro X value
+ *  32-33 | s16   | --        | gyro Y value
+ *  34-35 | s16   | --        | gyro Z value
+ *  36-37 | s16   | --        | quaternion W value
+ *  38-39 | s16   | --        | quaternion X value
+ *  40-41 | s16   | --        | quaternion Y value
+ *  42-43 | s16   | --        | quaternion Z value
+ *  44-45 | u16   | ABS_HAT2Y | left trigger (uncalibrated)
+ *  46-47 | u16   | ABS_HAT2X | right trigger (uncalibrated)
+ *  48-49 | s16   | ABS_X     | left joystick X
+ *  50-51 | s16   | ABS_Y     | left joystick Y
+ *  52-53 | s16   | ABS_RX    | right joystick X
+ *  54-55 | s16   | ABS_RY    | right joystick Y
+ *  56-57 | u16   | --        | left pad pressure
+ *  58-59 | u16   | --        | right pad pressure
+ *
+ * The buttons are:
+ *  Bit  | Mapped to  | Description
+ * ------+------------+--------------------------------
+ *  8.0  | BTN_TR2    | right trigger fully pressed
+ *  8.1  | BTN_TL2    | left trigger fully pressed
+ *  8.2  | BTN_TR     | right shoulder
+ *  8.3  | BTN_TL     | left shoulder
+ *  8.4  | BTN_Y      | button Y
+ *  8.5  | BTN_B      | button B
+ *  8.6  | BTN_X      | button X
+ *  8.7  | BTN_A      | button A
+ *  9.0  | BTN_DPAD_UP    | left-pad up
+ *  9.1  | BTN_DPAD_RIGHT | left-pad right
+ *  9.2  | BTN_DPAD_LEFT  | left-pad left
+ *  9.3  | BTN_DPAD_DOWN  | left-pad down
+ *  9.4  | BTN_SELECT | menu left
+ *  9.5  | BTN_MODE   | steam logo
+ *  9.6  | BTN_START  | menu right
+ *  9.7  | BTN_TRIGGER_HAPPY3 | left bottom grip button
+ *  10.0 | BTN_TRIGGER_HAPPY4 | right bottom grip button
+ *  10.1 | BTN_THUMB  | left pad pressed
+ *  10.2 | BTN_THUMB2 | right pad pressed
+ *  10.3 | --         | left pad touched
+ *  10.4 | --         | right pad touched
+ *  10.5 | --         | unknown
+ *  10.6 | BTN_THUMBL | left joystick clicked
+ *  10.7 | --         | unknown
+ *  11.0 | --         | unknown
+ *  11.1 | --         | unknown
+ *  11.2 | BTN_THUMBR | right joystick clicked
+ *  11.3 | --         | unknown
+ *  11.4 | --         | unknown
+ *  11.5 | --         | unknown
+ *  11.6 | --         | unknown
+ *  11.7 | --         | unknown
+ *  12.0 | --         | unknown
+ *  12.1 | --         | unknown
+ *  12.2 | --         | unknown
+ *  12.3 | --         | unknown
+ *  12.4 | --         | unknown
+ *  12.5 | --         | unknown
+ *  12.6 | --         | unknown
+ *  12.7 | --         | unknown
+ *  13.0 | --         | unknown
+ *  13.1 | BTN_TRIGGER_HAPPY1 | left top grip button
+ *  13.2 | BTN_TRIGGER_HAPPY2 | right top grip button
+ *  13.3 | --         | unknown
+ *  13.4 | --         | unknown
+ *  13.5 | --         | unknown
+ *  13.6 | --         | left joystick touched
+ *  13.7 | --         | right joystick touched
+ *  14.0 | --         | unknown
+ *  14.1 | --         | unknown
+ *  14.2 | BTN_BASE   | quick access button
+ *  14.3 | --         | unknown
+ *  14.4 | --         | unknown
+ *  14.5 | --         | unknown
+ *  14.6 | --         | unknown
+ *  14.7 | --         | unknown
+ *  15.0 | --         | unknown
+ *  15.1 | --         | unknown
+ *  15.2 | --         | unknown
+ *  15.3 | --         | unknown
+ *  15.4 | --         | unknown
+ *  15.5 | --         | unknown
+ *  15.6 | --         | unknown
+ *  15.7 | --         | unknown
+ */
+static void steam_do_deck_input_event(struct steam_device *steam,
+		struct input_dev *input, u8 *data)
+{
+	u8 b8, b9, b10, b11, b13, b14;
+	bool lpad_touched, rpad_touched;
+
+	b8 = data[8];
+	b9 = data[9];
+	b10 = data[10];
+	b11 = data[11];
+	b13 = data[13];
+	b14 = data[14];
+
+	lpad_touched = b10 & BIT(3);
+	rpad_touched = b10 & BIT(4);
+
+	if (lpad_touched) {
+		input_report_abs(input, ABS_HAT0X, steam_le16(data + 16));
+		input_report_abs(input, ABS_HAT0Y, steam_le16(data + 18));
+	} else {
+		input_report_abs(input, ABS_HAT0X, 0);
+		input_report_abs(input, ABS_HAT0Y, 0);
+	}
+
+	if (rpad_touched) {
+		input_report_abs(input, ABS_HAT1X, steam_le16(data + 20));
+		input_report_abs(input, ABS_HAT1Y, steam_le16(data + 22));
+	} else {
+		input_report_abs(input, ABS_HAT1X, 0);
+		input_report_abs(input, ABS_HAT1Y, 0);
+	}
+
+	input_report_abs(input, ABS_X, steam_le16(data + 48));
+	input_report_abs(input, ABS_Y, -steam_le16(data + 50));
+	input_report_abs(input, ABS_RX, steam_le16(data + 52));
+	input_report_abs(input, ABS_RY, -steam_le16(data + 54));
+
+	input_report_abs(input, ABS_HAT2Y, steam_le16(data + 44));
+	input_report_abs(input, ABS_HAT2X, steam_le16(data + 46));
+
+	input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0)));
+	input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1)));
+	input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2)));
+	input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3)));
+	input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4)));
+	input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5)));
+	input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6)));
+	input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7)));
+	input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4)));
+	input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5)));
+	input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6)));
+	input_event(input, EV_KEY, BTN_TRIGGER_HAPPY3, !!(b9 & BIT(7)));
+	input_event(input, EV_KEY, BTN_TRIGGER_HAPPY4, !!(b10 & BIT(0)));
+	input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6)));
+	input_event(input, EV_KEY, BTN_THUMBR, !!(b11 & BIT(2)));
+	input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0)));
+	input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1)));
+	input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2)));
+	input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3)));
+	input_event(input, EV_KEY, BTN_THUMB, !!(b10 & BIT(1)));
+	input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(2)));
+	input_event(input, EV_KEY, BTN_TRIGGER_HAPPY1, !!(b13 & BIT(1)));
+	input_event(input, EV_KEY, BTN_TRIGGER_HAPPY2, !!(b13 & BIT(2)));
+	input_event(input, EV_KEY, BTN_BASE, !!(b14 & BIT(2)));
+
+	input_sync(input);
+}
+
+/*
  * The size for this message payload is 11.
  * The known values are:
  *  Offset| Type  | Meaning
@@ -1052,6 +1368,7 @@ static int steam_raw_event(struct hid_device *hdev,
 	 *  0x01: input data (60 bytes)
 	 *  0x03: wireless connect/disconnect (1 byte)
 	 *  0x04: battery status (11 bytes)
+	 *  0x09: Steam Deck input data (56 bytes)
 	 */
 
 	if (size != 64 || data[0] != 1 || data[1] != 0)
@@ -1067,6 +1384,15 @@ static int steam_raw_event(struct hid_device *hdev,
 			steam_do_input_event(steam, input, data);
 		rcu_read_unlock();
 		break;
+	case STEAM_EV_DECK_INPUT_DATA:
+		if (steam->client_opened)
+			return 0;
+		rcu_read_lock();
+		input = rcu_dereference(steam->input);
+		if (likely(input))
+			steam_do_deck_input_event(steam, input, data);
+		rcu_read_unlock();
+		break;
 	case STEAM_EV_CONNECT:
 		/*
 		 * The payload of this event is a single byte:
@@ -1141,6 +1467,11 @@ static const struct hid_device_id steam_controllers[] = {
 		USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS),
 	  .driver_data = STEAM_QUIRK_WIRELESS
 	},
+	{ /* Steam Deck */
+	  HID_USB_DEVICE(USB_VENDOR_ID_VALVE,
+		USB_DEVICE_ID_STEAM_DECK),
+	  .driver_data = STEAM_QUIRK_DECK
+	},
 	{}
 };
 
diff --git a/drivers/hid/hid-uclogic-core-test.c b/drivers/hid/hid-uclogic-core-test.c
new file mode 100644
index 000000000000..2bb916226a38
--- /dev/null
+++ b/drivers/hid/hid-uclogic-core-test.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ *  HID driver for UC-Logic devices not fully compliant with HID standard
+ *
+ *  Copyright (c) 2022 José Expósito <jose.exposito89@gmail.com>
+ */
+
+#include <kunit/test.h>
+#include "./hid-uclogic-params.h"
+
+#define MAX_EVENT_SIZE 12
+
+struct uclogic_raw_event_hook_test {
+	u8 event[MAX_EVENT_SIZE];
+	size_t size;
+	bool expected;
+};
+
+static struct uclogic_raw_event_hook_test hook_events[] = {
+	{
+		.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
+		.size = 4,
+	},
+	{
+		.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
+		.size = 6,
+	},
+};
+
+static struct uclogic_raw_event_hook_test test_events[] = {
+	{
+		.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
+		.size = 4,
+		.expected = true,
+	},
+	{
+		.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
+		.size = 6,
+		.expected = true,
+	},
+	{
+		.event = { 0xA1, 0xB2, 0xC3 },
+		.size = 3,
+		.expected = false,
+	},
+	{
+		.event = { 0xA1, 0xB2, 0xC3, 0xD4, 0x00 },
+		.size = 5,
+		.expected = false,
+	},
+	{
+		.event = { 0x2E, 0x3D, 0x4C, 0x5B, 0x6A, 0x1F },
+		.size = 6,
+		.expected = false,
+	},
+};
+
+static void hid_test_uclogic_exec_event_hook_test(struct kunit *test)
+{
+	struct uclogic_params p = {0, };
+	struct uclogic_raw_event_hook *filter;
+	bool res;
+	int n;
+
+	/* Initialize the list of events to hook */
+	p.event_hooks = kunit_kzalloc(test, sizeof(*p.event_hooks), GFP_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p.event_hooks);
+	INIT_LIST_HEAD(&p.event_hooks->list);
+
+	for (n = 0; n < ARRAY_SIZE(hook_events); n++) {
+		filter = kunit_kzalloc(test, sizeof(*filter), GFP_KERNEL);
+		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter);
+
+		filter->size = hook_events[n].size;
+		filter->event = kunit_kzalloc(test, filter->size, GFP_KERNEL);
+		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter->event);
+		memcpy(filter->event, &hook_events[n].event[0], filter->size);
+
+		list_add_tail(&filter->list, &p.event_hooks->list);
+	}
+
+	/* Test uclogic_exec_event_hook() */
+	for (n = 0; n < ARRAY_SIZE(test_events); n++) {
+		res = uclogic_exec_event_hook(&p, &test_events[n].event[0],
+					      test_events[n].size);
+		KUNIT_ASSERT_EQ(test, res, test_events[n].expected);
+	}
+}
+
+static struct kunit_case hid_uclogic_core_test_cases[] = {
+	KUNIT_CASE(hid_test_uclogic_exec_event_hook_test),
+	{}
+};
+
+static struct kunit_suite hid_uclogic_core_test_suite = {
+	.name = "hid_uclogic_core_test",
+	.test_cases = hid_uclogic_core_test_cases,
+};
+
+kunit_test_suite(hid_uclogic_core_test_suite);
+
+MODULE_DESCRIPTION("KUnit tests for the UC-Logic driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("José Expósito <jose.exposito89@gmail.com>");
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index cfbbc39807a6..f67835f9ed4c 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -22,25 +22,6 @@
 
 #include "hid-ids.h"
 
-/* Driver data */
-struct uclogic_drvdata {
-	/* Interface parameters */
-	struct uclogic_params params;
-	/* Pointer to the replacement report descriptor. NULL if none. */
-	__u8 *desc_ptr;
-	/*
-	 * Size of the replacement report descriptor.
-	 * Only valid if desc_ptr is not NULL
-	 */
-	unsigned int desc_size;
-	/* Pen input device */
-	struct input_dev *pen_input;
-	/* In-range timer */
-	struct timer_list inrange_timer;
-	/* Last rotary encoder state, or U8_MAX for none */
-	u8 re_state;
-};
-
 /**
  * uclogic_inrange_timeout - handle pen in-range state timeout.
  * Emulate input events normally generated when pen goes out of range for
@@ -202,6 +183,7 @@ static int uclogic_probe(struct hid_device *hdev,
 	}
 	timer_setup(&drvdata->inrange_timer, uclogic_inrange_timeout, 0);
 	drvdata->re_state = U8_MAX;
+	drvdata->quirks = id->driver_data;
 	hid_set_drvdata(hdev, drvdata);
 
 	/* Initialize the device and retrieve interface parameters */
@@ -268,6 +250,34 @@ static int uclogic_resume(struct hid_device *hdev)
 #endif
 
 /**
+ * uclogic_exec_event_hook - if the received event is hooked schedules the
+ * associated work.
+ *
+ * @p:		Tablet interface report parameters.
+ * @event:	Raw event.
+ * @size:	The size of event.
+ *
+ * Returns:
+ *	Whether the event was hooked or not.
+ */
+static bool uclogic_exec_event_hook(struct uclogic_params *p, u8 *event, int size)
+{
+	struct uclogic_raw_event_hook *curr;
+
+	if (!p->event_hooks)
+		return false;
+
+	list_for_each_entry(curr, &p->event_hooks->list, list) {
+		if (curr->size == size && memcmp(curr->event, event, size) == 0) {
+			schedule_work(&curr->work);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/**
  * uclogic_raw_event_pen - handle raw pen events (pen HID reports).
  *
  * @drvdata:	Driver data.
@@ -425,6 +435,9 @@ static int uclogic_raw_event(struct hid_device *hdev,
 	if (report->type != HID_INPUT_REPORT)
 		return 0;
 
+	if (uclogic_exec_event_hook(params, data, size))
+		return 0;
+
 	while (true) {
 		/* Tweak pen reports, if necessary */
 		if ((report_id == params->pen.id) && (size >= 2)) {
@@ -530,8 +543,14 @@ static const struct hid_device_id uclogic_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
 				USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
+				USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW),
+		.driver_data = UCLOGIC_MOUSE_FRAME_QUIRK | UCLOGIC_BATTERY_QUIRK },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
 				USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_S) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
+				USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW),
+		.driver_data = UCLOGIC_MOUSE_FRAME_QUIRK | UCLOGIC_BATTERY_QUIRK },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
 				USB_DEVICE_ID_UGEE_XPPEN_TABLET_STAR06) },
 	{ }
 };
@@ -556,3 +575,7 @@ module_hid_driver(uclogic_driver);
 MODULE_AUTHOR("Martin Rusko");
 MODULE_AUTHOR("Nikolai Kondrashov");
 MODULE_LICENSE("GPL");
+
+#ifdef CONFIG_HID_KUNIT_TEST
+#include "hid-uclogic-core-test.c"
+#endif
diff --git a/drivers/hid/hid-uclogic-params-test.c b/drivers/hid/hid-uclogic-params-test.c
index bfa7ccb7d1e8..678f50cbb160 100644
--- a/drivers/hid/hid-uclogic-params-test.c
+++ b/drivers/hid/hid-uclogic-params-test.c
@@ -174,9 +174,25 @@ static void hid_test_uclogic_parse_ugee_v2_desc(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, params->frame_type, frame_type);
 }
 
+static void hid_test_uclogic_params_cleanup_event_hooks(struct kunit *test)
+{
+	int res, n;
+	struct uclogic_params p = {0, };
+
+	res = uclogic_params_ugee_v2_init_event_hooks(NULL, &p);
+	KUNIT_ASSERT_EQ(test, res, 0);
+
+	/* Check that the function can be called repeatedly */
+	for (n = 0; n < 4; n++) {
+		uclogic_params_cleanup_event_hooks(&p);
+		KUNIT_EXPECT_PTR_EQ(test, p.event_hooks, NULL);
+	}
+}
+
 static struct kunit_case hid_uclogic_params_test_cases[] = {
 	KUNIT_CASE_PARAM(hid_test_uclogic_parse_ugee_v2_desc,
 			 uclogic_parse_ugee_v2_desc_gen_params),
+	KUNIT_CASE(hid_test_uclogic_params_cleanup_event_hooks),
 	{}
 };
 
diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index 3c5eea3df328..9859dad36495 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -616,6 +616,31 @@ cleanup:
 }
 
 /**
+ * uclogic_params_cleanup_event_hooks - free resources used by the list of raw
+ * event hooks.
+ * Can be called repeatedly.
+ *
+ * @params: Input parameters to cleanup. Cannot be NULL.
+ */
+static void uclogic_params_cleanup_event_hooks(struct uclogic_params *params)
+{
+	struct uclogic_raw_event_hook *curr, *n;
+
+	if (!params || !params->event_hooks)
+		return;
+
+	list_for_each_entry_safe(curr, n, &params->event_hooks->list, list) {
+		cancel_work_sync(&curr->work);
+		list_del(&curr->list);
+		kfree(curr->event);
+		kfree(curr);
+	}
+
+	kfree(params->event_hooks);
+	params->event_hooks = NULL;
+}
+
+/**
  * uclogic_params_cleanup - free resources used by struct uclogic_params
  * (tablet interface's parameters).
  * Can be called repeatedly.
@@ -631,6 +656,7 @@ void uclogic_params_cleanup(struct uclogic_params *params)
 		for (i = 0; i < ARRAY_SIZE(params->frame_list); i++)
 			uclogic_params_frame_cleanup(&params->frame_list[i]);
 
+		uclogic_params_cleanup_event_hooks(params);
 		memset(params, 0, sizeof(*params));
 	}
 }
@@ -1021,8 +1047,8 @@ cleanup:
  * Returns:
  *	Zero, if successful. A negative errno code on error.
  */
-static int uclogic_probe_interface(struct hid_device *hdev, u8 *magic_arr,
-				   int magic_size, int endpoint)
+static int uclogic_probe_interface(struct hid_device *hdev, const u8 *magic_arr,
+				   size_t magic_size, int endpoint)
 {
 	struct usb_device *udev;
 	unsigned int pipe = 0;
@@ -1222,6 +1248,11 @@ static int uclogic_params_ugee_v2_init_frame_mouse(struct uclogic_params *p)
  */
 static bool uclogic_params_ugee_v2_has_battery(struct hid_device *hdev)
 {
+	struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	if (drvdata->quirks & UCLOGIC_BATTERY_QUIRK)
+		return true;
+
 	/* The XP-PEN Deco LW vendor, product and version are identical to the
 	 * Deco L. The only difference reported by their firmware is the product
 	 * name. Add a quirk to support battery reporting on the wireless
@@ -1276,6 +1307,72 @@ static int uclogic_params_ugee_v2_init_battery(struct hid_device *hdev,
 }
 
 /**
+ * uclogic_params_ugee_v2_reconnect_work() - When a wireless tablet looses
+ * connection to the USB dongle and reconnects, either because of its physical
+ * distance or because it was switches off and on using the frame's switch,
+ * uclogic_probe_interface() needs to be called again to enable the tablet.
+ *
+ * @work: The work that triggered this function.
+ */
+static void uclogic_params_ugee_v2_reconnect_work(struct work_struct *work)
+{
+	struct uclogic_raw_event_hook *event_hook;
+
+	event_hook = container_of(work, struct uclogic_raw_event_hook, work);
+	uclogic_probe_interface(event_hook->hdev, uclogic_ugee_v2_probe_arr,
+				uclogic_ugee_v2_probe_size,
+				uclogic_ugee_v2_probe_endpoint);
+}
+
+/**
+ * uclogic_params_ugee_v2_init_event_hooks() - initialize the list of events
+ * to be hooked for UGEE v2 devices.
+ * @hdev:	The HID device of the tablet interface to initialize and get
+ *		parameters from.
+ * @p:		Parameters to fill in, cannot be NULL.
+ *
+ * Returns:
+ *	Zero, if successful. A negative errno code on error.
+ */
+static int uclogic_params_ugee_v2_init_event_hooks(struct hid_device *hdev,
+						   struct uclogic_params *p)
+{
+	struct uclogic_raw_event_hook *event_hook;
+	__u8 reconnect_event[] = {
+		/* Event received on wireless tablet reconnection */
+		0x02, 0xF8, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+	};
+
+	if (!p)
+		return -EINVAL;
+
+	/* The reconnection event is only received if the tablet has battery */
+	if (!uclogic_params_ugee_v2_has_battery(hdev))
+		return 0;
+
+	p->event_hooks = kzalloc(sizeof(*p->event_hooks), GFP_KERNEL);
+	if (!p->event_hooks)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&p->event_hooks->list);
+
+	event_hook = kzalloc(sizeof(*event_hook), GFP_KERNEL);
+	if (!event_hook)
+		return -ENOMEM;
+
+	INIT_WORK(&event_hook->work, uclogic_params_ugee_v2_reconnect_work);
+	event_hook->hdev = hdev;
+	event_hook->size = ARRAY_SIZE(reconnect_event);
+	event_hook->event = kmemdup(reconnect_event, event_hook->size, GFP_KERNEL);
+	if (!event_hook->event)
+		return -ENOMEM;
+
+	list_add_tail(&event_hook->list, &p->event_hooks->list);
+
+	return 0;
+}
+
+/**
  * uclogic_params_ugee_v2_init() - initialize a UGEE graphics tablets by
  * discovering their parameters.
  *
@@ -1298,6 +1395,7 @@ static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
 				       struct hid_device *hdev)
 {
 	int rc = 0;
+	struct uclogic_drvdata *drvdata;
 	struct usb_interface *iface;
 	__u8 bInterfaceNumber;
 	const int str_desc_len = 12;
@@ -1305,9 +1403,6 @@ static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
 	__u8 *rdesc_pen = NULL;
 	s32 desc_params[UCLOGIC_RDESC_PH_ID_NUM];
 	enum uclogic_params_frame_type frame_type;
-	__u8 magic_arr[] = {
-		0x02, 0xb0, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	};
 	/* The resulting parameters (noop) */
 	struct uclogic_params p = {0, };
 
@@ -1316,6 +1411,7 @@ static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
 		goto cleanup;
 	}
 
+	drvdata = hid_get_drvdata(hdev);
 	iface = to_usb_interface(hdev->dev.parent);
 	bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
 
@@ -1337,7 +1433,9 @@ static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
 	 * The specific data was discovered by sniffing the Windows driver
 	 * traffic.
 	 */
-	rc = uclogic_probe_interface(hdev, magic_arr, sizeof(magic_arr), 0x03);
+	rc = uclogic_probe_interface(hdev, uclogic_ugee_v2_probe_arr,
+				     uclogic_ugee_v2_probe_size,
+				     uclogic_ugee_v2_probe_endpoint);
 	if (rc) {
 		uclogic_params_init_invalid(&p);
 		goto output;
@@ -1382,6 +1480,9 @@ static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
 	p.pen.subreport_list[0].id = UCLOGIC_RDESC_V1_FRAME_ID;
 
 	/* Initialize the frame interface */
+	if (drvdata->quirks & UCLOGIC_MOUSE_FRAME_QUIRK)
+		frame_type = UCLOGIC_PARAMS_FRAME_MOUSE;
+
 	switch (frame_type) {
 	case UCLOGIC_PARAMS_FRAME_DIAL:
 	case UCLOGIC_PARAMS_FRAME_MOUSE:
@@ -1407,6 +1508,13 @@ static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
 		}
 	}
 
+	/* Create a list of raw events to be ignored */
+	rc = uclogic_params_ugee_v2_init_event_hooks(hdev, &p);
+	if (rc) {
+		hid_err(hdev, "error initializing event hook list: %d\n", rc);
+		goto cleanup;
+	}
+
 output:
 	/* Output parameters */
 	memcpy(params, &p, sizeof(*params));
@@ -1660,7 +1768,11 @@ int uclogic_params_init(struct uclogic_params *params,
 	case VID_PID(USB_VENDOR_ID_UGEE,
 		     USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L):
 	case VID_PID(USB_VENDOR_ID_UGEE,
+		     USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW):
+	case VID_PID(USB_VENDOR_ID_UGEE,
 		     USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_S):
+	case VID_PID(USB_VENDOR_ID_UGEE,
+		     USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW):
 		rc = uclogic_params_ugee_v2_init(&p, hdev);
 		if (rc != 0)
 			goto cleanup;
diff --git a/drivers/hid/hid-uclogic-params.h b/drivers/hid/hid-uclogic-params.h
index a97477c02ff8..d6ffadb2f601 100644
--- a/drivers/hid/hid-uclogic-params.h
+++ b/drivers/hid/hid-uclogic-params.h
@@ -18,6 +18,10 @@
 
 #include <linux/usb.h>
 #include <linux/hid.h>
+#include <linux/list.h>
+
+#define UCLOGIC_MOUSE_FRAME_QUIRK	BIT(0)
+#define UCLOGIC_BATTERY_QUIRK		BIT(1)
 
 /* Types of pen in-range reporting */
 enum uclogic_params_pen_inrange {
@@ -174,6 +178,17 @@ struct uclogic_params_frame {
 };
 
 /*
+ * List of works to be performed when a certain raw event is received.
+ */
+struct uclogic_raw_event_hook {
+	struct hid_device *hdev;
+	__u8 *event;
+	size_t size;
+	struct work_struct work;
+	struct list_head list;
+};
+
+/*
  * Tablet interface report parameters.
  *
  * Must use declarative (descriptive) language, not imperative, to simplify
@@ -213,6 +228,31 @@ struct uclogic_params {
 	 * parts. Only valid, if "invalid" is false.
 	 */
 	struct uclogic_params_frame frame_list[3];
+	/*
+	 * List of event hooks.
+	 */
+	struct uclogic_raw_event_hook *event_hooks;
+};
+
+/* Driver data */
+struct uclogic_drvdata {
+	/* Interface parameters */
+	struct uclogic_params params;
+	/* Pointer to the replacement report descriptor. NULL if none. */
+	__u8 *desc_ptr;
+	/*
+	 * Size of the replacement report descriptor.
+	 * Only valid if desc_ptr is not NULL
+	 */
+	unsigned int desc_size;
+	/* Pen input device */
+	struct input_dev *pen_input;
+	/* In-range timer */
+	struct timer_list inrange_timer;
+	/* Last rotary encoder state, or U8_MAX for none */
+	u8 re_state;
+	/* Device quirks */
+	unsigned long quirks;
 };
 
 /* Initialize a tablet interface and discover its parameters */
diff --git a/drivers/hid/hid-uclogic-rdesc-test.c b/drivers/hid/hid-uclogic-rdesc-test.c
index b429c541bf2f..90bf4e586e01 100644
--- a/drivers/hid/hid-uclogic-rdesc-test.c
+++ b/drivers/hid/hid-uclogic-rdesc-test.c
@@ -197,8 +197,7 @@ static void hid_test_uclogic_template(struct kunit *test)
 					   params->param_list,
 					   params->param_num);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, res);
-	KUNIT_EXPECT_EQ(test, 0,
-			memcmp(res, params->expected, params->template_size));
+	KUNIT_EXPECT_MEMEQ(test, res, params->expected, params->template_size);
 	kfree(res);
 }
 
diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c
index fb40775f5f5b..b6dfdf6356a6 100644
--- a/drivers/hid/hid-uclogic-rdesc.c
+++ b/drivers/hid/hid-uclogic-rdesc.c
@@ -859,6 +859,12 @@ const __u8 uclogic_rdesc_v2_frame_dial_arr[] = {
 const size_t uclogic_rdesc_v2_frame_dial_size =
 			sizeof(uclogic_rdesc_v2_frame_dial_arr);
 
+const __u8 uclogic_ugee_v2_probe_arr[] = {
+	0x02, 0xb0, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+const size_t uclogic_ugee_v2_probe_size = sizeof(uclogic_ugee_v2_probe_arr);
+const int uclogic_ugee_v2_probe_endpoint = 0x03;
+
 /* Fixed report descriptor template for UGEE v2 pen reports */
 const __u8 uclogic_rdesc_ugee_v2_pen_template_arr[] = {
 	0x05, 0x0d,         /*  Usage Page (Digitizers),                */
diff --git a/drivers/hid/hid-uclogic-rdesc.h b/drivers/hid/hid-uclogic-rdesc.h
index a1f78c07293f..906d068f50a9 100644
--- a/drivers/hid/hid-uclogic-rdesc.h
+++ b/drivers/hid/hid-uclogic-rdesc.h
@@ -164,6 +164,11 @@ extern const size_t uclogic_rdesc_v2_frame_dial_size;
 /* Report ID for tweaked UGEE v2 battery reports */
 #define UCLOGIC_RDESC_UGEE_V2_BATTERY_ID 0xba
 
+/* Magic data expected by UGEEv2 devices on probe */
+extern const __u8 uclogic_ugee_v2_probe_arr[];
+extern const size_t uclogic_ugee_v2_probe_size;
+extern const int uclogic_ugee_v2_probe_endpoint;
+
 /* Fixed report descriptor template for UGEE v2 pen reports */
 extern const __u8 uclogic_rdesc_ugee_v2_pen_template_arr[];
 extern const size_t uclogic_rdesc_ugee_v2_pen_template_size;
diff --git a/drivers/hid/i2c-hid/Kconfig b/drivers/hid/i2c-hid/Kconfig
index d65abe65ce73..4439be7fa74d 100644
--- a/drivers/hid/i2c-hid/Kconfig
+++ b/drivers/hid/i2c-hid/Kconfig
@@ -1,11 +1,15 @@
 # SPDX-License-Identifier: GPL-2.0-only
-menu "I2C HID support"
-	depends on I2C
+menuconfig I2C_HID
+	tristate "I2C HID support"
+	default y
+	depends on I2C && INPUT && HID
+
+if I2C_HID
 
 config I2C_HID_ACPI
 	tristate "HID over I2C transport layer ACPI driver"
-	default n
-	depends on I2C && INPUT && ACPI
+	depends on ACPI
+	select I2C_HID_CORE
 	help
 	  Say Y here if you use a keyboard, a touchpad, a touchscreen, or any
 	  other HID based devices which is connected to your computer via I2C.
@@ -19,8 +23,8 @@ config I2C_HID_ACPI
 
 config I2C_HID_OF
 	tristate "HID over I2C transport layer Open Firmware driver"
-	default n
-	depends on I2C && INPUT && OF
+	depends on OF
+	select I2C_HID_CORE
 	help
 	  Say Y here if you use a keyboard, a touchpad, a touchscreen, or any
 	  other HID based devices which is connected to your computer via I2C.
@@ -34,8 +38,8 @@ config I2C_HID_OF
 
 config I2C_HID_OF_ELAN
 	tristate "Driver for Elan hid-i2c based devices on OF systems"
-	default n
-	depends on I2C && INPUT && OF
+	depends on OF
+	select I2C_HID_CORE
 	help
 	  Say Y here if you want support for Elan i2c devices that use
 	  the i2c-hid protocol on Open Firmware (Device Tree)-based
@@ -49,8 +53,8 @@ config I2C_HID_OF_ELAN
 
 config I2C_HID_OF_GOODIX
 	tristate "Driver for Goodix hid-i2c based devices on OF systems"
-	default n
-	depends on I2C && INPUT && OF
+	depends on OF
+	select I2C_HID_CORE
 	help
 	  Say Y here if you want support for Goodix i2c devices that use
 	  the i2c-hid protocol on Open Firmware (Device Tree)-based
@@ -62,10 +66,7 @@ config I2C_HID_OF_GOODIX
 	  will be called i2c-hid-of-goodix.  It will also build/depend on
 	  the module i2c-hid.
 
-endmenu
-
 config I2C_HID_CORE
 	tristate
-	default y if I2C_HID_ACPI=y || I2C_HID_OF=y || I2C_HID_OF_ELAN=y || I2C_HID_OF_GOODIX=y
-	default m if I2C_HID_ACPI=m || I2C_HID_OF=m || I2C_HID_OF_ELAN=m || I2C_HID_OF_GOODIX=m
-	select HID
+endif
+
diff --git a/drivers/hid/i2c-hid/i2c-hid-acpi.c b/drivers/hid/i2c-hid/i2c-hid-acpi.c
index 375c77c3db74..3a7e2bcb5412 100644
--- a/drivers/hid/i2c-hid/i2c-hid-acpi.c
+++ b/drivers/hid/i2c-hid/i2c-hid-acpi.c
@@ -39,8 +39,8 @@ static const struct acpi_device_id i2c_hid_acpi_blacklist[] = {
 	 * The CHPN0001 ACPI device, which is used to describe the Chipone
 	 * ICN8505 controller, has a _CID of PNP0C50 but is not HID compatible.
 	 */
-	{"CHPN0001", 0 },
-	{ },
+	{ "CHPN0001" },
+	{ }
 };
 
 /* HID I²C Device: 3cdff6f7-4267-4555-ad05-b30a3d8938de */
@@ -48,8 +48,9 @@ static guid_t i2c_hid_guid =
 	GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555,
 		  0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE);
 
-static int i2c_hid_acpi_get_descriptor(struct acpi_device *adev)
+static int i2c_hid_acpi_get_descriptor(struct i2c_hid_acpi *ihid_acpi)
 {
+	struct acpi_device *adev = ihid_acpi->adev;
 	acpi_handle handle = acpi_device_handle(adev);
 	union acpi_object *obj;
 	u16 hid_descriptor_address;
@@ -81,38 +82,31 @@ static int i2c_hid_acpi_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	struct i2c_hid_acpi *ihid_acpi;
-	struct acpi_device *adev;
 	u16 hid_descriptor_address;
 	int ret;
 
-	adev = ACPI_COMPANION(dev);
-	if (!adev) {
-		dev_err(&client->dev, "Error could not get ACPI device\n");
-		return -ENODEV;
-	}
-
 	ihid_acpi = devm_kzalloc(&client->dev, sizeof(*ihid_acpi), GFP_KERNEL);
 	if (!ihid_acpi)
 		return -ENOMEM;
 
-	ihid_acpi->adev = adev;
+	ihid_acpi->adev = ACPI_COMPANION(dev);
 	ihid_acpi->ops.shutdown_tail = i2c_hid_acpi_shutdown_tail;
 
-	ret = i2c_hid_acpi_get_descriptor(adev);
+	ret = i2c_hid_acpi_get_descriptor(ihid_acpi);
 	if (ret < 0)
 		return ret;
 	hid_descriptor_address = ret;
 
-	acpi_device_fix_up_power(adev);
+	acpi_device_fix_up_power(ihid_acpi->adev);
 
 	return i2c_hid_core_probe(client, &ihid_acpi->ops,
 				  hid_descriptor_address, 0);
 }
 
 static const struct acpi_device_id i2c_hid_acpi_match[] = {
-	{"ACPI0C50", 0 },
-	{"PNP0C50", 0 },
-	{ },
+	{ "ACPI0C50" },
+	{ "PNP0C50" },
+	{ }
 };
 MODULE_DEVICE_TABLE(acpi, i2c_hid_acpi_match);
 
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index b86b62f97108..efbba0465eef 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -67,16 +67,7 @@
 #define I2C_HID_PWR_ON		0x00
 #define I2C_HID_PWR_SLEEP	0x01
 
-/* debug option */
-static bool debug;
-module_param(debug, bool, 0444);
-MODULE_PARM_DESC(debug, "print a lot of debug information");
-
-#define i2c_hid_dbg(ihid, fmt, arg...)					  \
-do {									  \
-	if (debug)							  \
-		dev_printk(KERN_DEBUG, &(ihid)->client->dev, fmt, ##arg); \
-} while (0)
+#define i2c_hid_dbg(ihid, ...) dev_dbg(&(ihid)->client->dev, __VA_ARGS__)
 
 struct i2c_hid_desc {
 	__le16 wHIDDescLength;
@@ -842,7 +833,7 @@ static void i2c_hid_close(struct hid_device *hid)
 	clear_bit(I2C_HID_STARTED, &ihid->flags);
 }
 
-struct hid_ll_driver i2c_hid_ll_driver = {
+static const struct hid_ll_driver i2c_hid_ll_driver = {
 	.parse = i2c_hid_parse,
 	.start = i2c_hid_start,
 	.stop = i2c_hid_stop,
@@ -851,7 +842,6 @@ struct hid_ll_driver i2c_hid_ll_driver = {
 	.output_report = i2c_hid_output_report,
 	.raw_request = i2c_hid_raw_request,
 };
-EXPORT_SYMBOL_GPL(i2c_hid_ll_driver);
 
 static int i2c_hid_init_irq(struct i2c_client *client)
 {
@@ -859,7 +849,7 @@ static int i2c_hid_init_irq(struct i2c_client *client)
 	unsigned long irqflags = 0;
 	int ret;
 
-	dev_dbg(&client->dev, "Requesting IRQ: %d\n", client->irq);
+	i2c_hid_dbg(ihid, "Requesting IRQ: %d\n", client->irq);
 
 	if (!irq_get_trigger_type(client->irq))
 		irqflags = IRQF_TRIGGER_LOW;
@@ -1003,7 +993,7 @@ int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
 	/* Make sure there is something at this address */
 	ret = i2c_smbus_read_byte(client);
 	if (ret < 0) {
-		dev_dbg(&client->dev, "nothing at this address: %d\n", ret);
+		i2c_hid_dbg(ihid, "nothing at this address: %d\n", ret);
 		ret = -ENXIO;
 		goto err_powered;
 	}
@@ -1035,6 +1025,10 @@ int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
 	hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
 	hid->product = le16_to_cpu(ihid->hdesc.wProductID);
 
+	hid->initial_quirks = quirks;
+	hid->initial_quirks |= i2c_hid_get_dmi_quirks(hid->vendor,
+						      hid->product);
+
 	snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X",
 		 client->name, (u16)hid->vendor, (u16)hid->product);
 	strscpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys));
@@ -1048,8 +1042,6 @@ int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
 		goto err_mem_free;
 	}
 
-	hid->quirks |= quirks;
-
 	return 0;
 
 err_mem_free:
diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
index 8e0f67455c09..210f17c3a0be 100644
--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
@@ -10,8 +10,10 @@
 #include <linux/types.h>
 #include <linux/dmi.h>
 #include <linux/mod_devicetable.h>
+#include <linux/hid.h>
 
 #include "i2c-hid.h"
+#include "../hid-ids.h"
 
 
 struct i2c_hid_desc_override {
@@ -416,6 +418,28 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
 	{ }	/* Terminate list */
 };
 
+static const struct hid_device_id i2c_hid_elan_flipped_quirks = {
+	HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_ELAN, 0x2dcd),
+		HID_QUIRK_X_INVERT | HID_QUIRK_Y_INVERT
+};
+
+/*
+ * This list contains devices which have specific issues based on the system
+ * they're on and not just the device itself. The driver_data will have a
+ * specific hid device to match against.
+ */
+static const struct dmi_system_id i2c_hid_dmi_quirk_table[] = {
+	{
+		.ident = "DynaBook K50/FR",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dynabook Inc."),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "dynabook K50/FR"),
+		},
+		.driver_data = (void *)&i2c_hid_elan_flipped_quirks,
+	},
+	{ }	/* Terminate list */
+};
+
 
 struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name)
 {
@@ -450,3 +474,21 @@ char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
 	*size = override->hid_report_desc_size;
 	return override->hid_report_desc;
 }
+
+u32 i2c_hid_get_dmi_quirks(const u16 vendor, const u16 product)
+{
+	u32 quirks = 0;
+	const struct dmi_system_id *system_id =
+			dmi_first_match(i2c_hid_dmi_quirk_table);
+
+	if (system_id) {
+		const struct hid_device_id *device_id =
+				(struct hid_device_id *)(system_id->driver_data);
+
+		if (device_id && device_id->vendor == vendor &&
+		    device_id->product == product)
+			quirks = device_id->driver_data;
+	}
+
+	return quirks;
+}
diff --git a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
index 29c6cb174032..0060e3dcd775 100644
--- a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
+++ b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
@@ -26,28 +26,33 @@ struct i2c_hid_of_goodix {
 	struct i2chid_ops ops;
 
 	struct regulator *vdd;
-	struct notifier_block nb;
+	struct regulator *vddio;
 	struct gpio_desc *reset_gpio;
 	const struct goodix_i2c_hid_timing_data *timings;
 };
 
-static void goodix_i2c_hid_deassert_reset(struct i2c_hid_of_goodix *ihid_goodix,
-					  bool regulator_just_turned_on)
+static int goodix_i2c_hid_power_up(struct i2chid_ops *ops)
 {
-	if (regulator_just_turned_on && ihid_goodix->timings->post_power_delay_ms)
+	struct i2c_hid_of_goodix *ihid_goodix =
+		container_of(ops, struct i2c_hid_of_goodix, ops);
+	int ret;
+
+	ret = regulator_enable(ihid_goodix->vdd);
+	if (ret)
+		return ret;
+
+	ret = regulator_enable(ihid_goodix->vddio);
+	if (ret)
+		return ret;
+
+	if (ihid_goodix->timings->post_power_delay_ms)
 		msleep(ihid_goodix->timings->post_power_delay_ms);
 
 	gpiod_set_value_cansleep(ihid_goodix->reset_gpio, 0);
 	if (ihid_goodix->timings->post_gpio_reset_delay_ms)
 		msleep(ihid_goodix->timings->post_gpio_reset_delay_ms);
-}
-
-static int goodix_i2c_hid_power_up(struct i2chid_ops *ops)
-{
-	struct i2c_hid_of_goodix *ihid_goodix =
-		container_of(ops, struct i2c_hid_of_goodix, ops);
 
-	return regulator_enable(ihid_goodix->vdd);
+	return 0;
 }
 
 static void goodix_i2c_hid_power_down(struct i2chid_ops *ops)
@@ -55,42 +60,15 @@ static void goodix_i2c_hid_power_down(struct i2chid_ops *ops)
 	struct i2c_hid_of_goodix *ihid_goodix =
 		container_of(ops, struct i2c_hid_of_goodix, ops);
 
+	gpiod_set_value_cansleep(ihid_goodix->reset_gpio, 1);
+	regulator_disable(ihid_goodix->vddio);
 	regulator_disable(ihid_goodix->vdd);
 }
 
-static int ihid_goodix_vdd_notify(struct notifier_block *nb,
-				    unsigned long event,
-				    void *ignored)
-{
-	struct i2c_hid_of_goodix *ihid_goodix =
-		container_of(nb, struct i2c_hid_of_goodix, nb);
-	int ret = NOTIFY_OK;
-
-	switch (event) {
-	case REGULATOR_EVENT_PRE_DISABLE:
-		gpiod_set_value_cansleep(ihid_goodix->reset_gpio, 1);
-		break;
-
-	case REGULATOR_EVENT_ENABLE:
-		goodix_i2c_hid_deassert_reset(ihid_goodix, true);
-		break;
-
-	case REGULATOR_EVENT_ABORT_DISABLE:
-		goodix_i2c_hid_deassert_reset(ihid_goodix, false);
-		break;
-
-	default:
-		ret = NOTIFY_DONE;
-		break;
-	}
-
-	return ret;
-}
-
 static int i2c_hid_of_goodix_probe(struct i2c_client *client)
 {
 	struct i2c_hid_of_goodix *ihid_goodix;
-	int ret;
+
 	ihid_goodix = devm_kzalloc(&client->dev, sizeof(*ihid_goodix),
 				   GFP_KERNEL);
 	if (!ihid_goodix)
@@ -109,41 +87,11 @@ static int i2c_hid_of_goodix_probe(struct i2c_client *client)
 	if (IS_ERR(ihid_goodix->vdd))
 		return PTR_ERR(ihid_goodix->vdd);
 
-	ihid_goodix->timings = device_get_match_data(&client->dev);
+	ihid_goodix->vddio = devm_regulator_get(&client->dev, "mainboard-vddio");
+	if (IS_ERR(ihid_goodix->vddio))
+		return PTR_ERR(ihid_goodix->vddio);
 
-	/*
-	 * We need to control the "reset" line in lockstep with the regulator
-	 * actually turning on an off instead of just when we make the request.
-	 * This matters if the regulator is shared with another consumer.
-	 * - If the regulator is off then we must assert reset. The reset
-	 *   line is active low and on some boards it could cause a current
-	 *   leak if left high.
-	 * - If the regulator is on then we don't want reset asserted for very
-	 *   long. Holding the controller in reset apparently draws extra
-	 *   power.
-	 */
-	ihid_goodix->nb.notifier_call = ihid_goodix_vdd_notify;
-	ret = devm_regulator_register_notifier(ihid_goodix->vdd, &ihid_goodix->nb);
-	if (ret)
-		return dev_err_probe(&client->dev, ret,
-			"regulator notifier request failed\n");
-
-	/*
-	 * If someone else is holding the regulator on (or the regulator is
-	 * an always-on one) we might never be told to deassert reset. Do it
-	 * now... and temporarily bump the regulator reference count just to
-	 * make sure it is impossible for this to race with our own notifier!
-	 * We also assume that someone else might have _just barely_ turned
-	 * the regulator on so we'll do the full "post_power_delay" just in
-	 * case.
-	 */
-	if (ihid_goodix->reset_gpio && regulator_is_enabled(ihid_goodix->vdd)) {
-		ret = regulator_enable(ihid_goodix->vdd);
-		if (ret)
-			return ret;
-		goodix_i2c_hid_deassert_reset(ihid_goodix, true);
-		regulator_disable(ihid_goodix->vdd);
-	}
+	ihid_goodix->timings = device_get_match_data(&client->dev);
 
 	return i2c_hid_core_probe(client, &ihid_goodix->ops, 0x0001, 0);
 }
diff --git a/drivers/hid/i2c-hid/i2c-hid.h b/drivers/hid/i2c-hid/i2c-hid.h
index 96c75510ad3f..2c7b66d5caa0 100644
--- a/drivers/hid/i2c-hid/i2c-hid.h
+++ b/drivers/hid/i2c-hid/i2c-hid.h
@@ -9,6 +9,7 @@
 struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name);
 char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
 					       unsigned int *size);
+u32 i2c_hid_get_dmi_quirks(const u16 vendor, const u16 product);
 #else
 static inline struct i2c_hid_desc
 		   *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name)
@@ -16,6 +17,8 @@ static inline struct i2c_hid_desc
 static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
 							     unsigned int *size)
 { return NULL; }
+static inline u32 i2c_hid_get_dmi_quirks(const u16 vendor, const u16 product)
+{ return 0; }
 #endif
 
 /**
diff --git a/drivers/hid/intel-ish-hid/Kconfig b/drivers/hid/intel-ish-hid/Kconfig
index 689da84a520d..253dc10d35ef 100644
--- a/drivers/hid/intel-ish-hid/Kconfig
+++ b/drivers/hid/intel-ish-hid/Kconfig
@@ -6,7 +6,7 @@ config INTEL_ISH_HID
 	tristate "Intel Integrated Sensor Hub"
 	default n
 	depends on X86
-	select HID
+	depends on HID
 	help
 	  The Integrated Sensor Hub (ISH) enables the ability to offload
 	  sensor polling and algorithm processing to a dedicated low power
diff --git a/drivers/hid/intel-ish-hid/ishtp-hid.c b/drivers/hid/intel-ish-hid/ishtp-hid.c
index 14c271d7d8a9..00c6f0ebf356 100644
--- a/drivers/hid/intel-ish-hid/ishtp-hid.c
+++ b/drivers/hid/intel-ish-hid/ishtp-hid.c
@@ -183,7 +183,7 @@ void ishtp_hid_wakeup(struct hid_device *hid)
 	wake_up_interruptible(&hid_data->hid_wait);
 }
 
-static struct hid_ll_driver ishtp_hid_ll_driver = {
+static const struct hid_ll_driver ishtp_hid_ll_driver = {
 	.parse = ishtp_hid_parse,
 	.start = ishtp_hid_start,
 	.stop = ishtp_hid_stop,
diff --git a/drivers/hid/surface-hid/surface_hid_core.c b/drivers/hid/surface-hid/surface_hid_core.c
index 87637f813de2..a3e9cceddfac 100644
--- a/drivers/hid/surface-hid/surface_hid_core.c
+++ b/drivers/hid/surface-hid/surface_hid_core.c
@@ -174,7 +174,7 @@ static int surface_hid_raw_request(struct hid_device *hid, unsigned char reportn
 	return -EIO;
 }
 
-static struct hid_ll_driver surface_hid_ll_driver = {
+static const struct hid_ll_driver surface_hid_ll_driver = {
 	.start       = surface_hid_start,
 	.stop        = surface_hid_stop,
 	.open        = surface_hid_open,
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 2a918aeb0af1..f161c95a1ad2 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -387,7 +387,7 @@ static int uhid_hid_output_report(struct hid_device *hid, __u8 *buf,
 	return uhid_hid_output_raw(hid, buf, count, HID_OUTPUT_REPORT);
 }
 
-struct hid_ll_driver uhid_hid_driver = {
+static const struct hid_ll_driver uhid_hid_driver = {
 	.start = uhid_hid_start,
 	.stop = uhid_hid_stop,
 	.open = uhid_hid_open,
@@ -396,7 +396,6 @@ struct hid_ll_driver uhid_hid_driver = {
 	.raw_request = uhid_hid_raw_request,
 	.output_report = uhid_hid_output_report,
 };
-EXPORT_SYMBOL_GPL(uhid_hid_driver);
 
 #ifdef CONFIG_COMPAT
 
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index be4c731aaa65..257dd73e37bf 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1318,7 +1318,7 @@ static bool usbhid_may_wakeup(struct hid_device *hid)
 	return device_may_wakeup(&dev->dev);
 }
 
-struct hid_ll_driver usb_hid_driver = {
+static const struct hid_ll_driver usb_hid_driver = {
 	.parse = usbhid_parse,
 	.start = usbhid_start,
 	.stop = usbhid_stop,
@@ -1332,7 +1332,12 @@ struct hid_ll_driver usb_hid_driver = {
 	.idle = usbhid_idle,
 	.may_wakeup = usbhid_may_wakeup,
 };
-EXPORT_SYMBOL_GPL(usb_hid_driver);
+
+bool hid_is_usb(const struct hid_device *hdev)
+{
+	return hdev->ll_driver == &usb_hid_driver;
+}
+EXPORT_SYMBOL_GPL(hid_is_usb);
 
 static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
author	Linus Torvalds <torvalds@linux-foundation.org>	2023-02-22 11:24:42 -0800
committer	Linus Torvalds <torvalds@linux-foundation.org>	2023-02-22 11:24:42 -0800
commit	6c71297eaf713ece684a367ce9aff06069d715b9 (patch)
tree	da6f4768868ec6c9ba90a89c88fc78560577348f /drivers/hid
parent	d5176cdbf64ce7d4eebf339205f17c23118e9f72 (diff)
parent	904e28c6de083fa4834cdbd0026470ddc30676fc (diff)