12 files changed, 209 insertions, 12 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget b/Documentation/ABI/testing/configfs-usb-gadget
index 95a36589a66b..4594cc2435e8 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget
+++ b/Documentation/ABI/testing/configfs-usb-gadget
@@ -16,6 +16,10 @@ Description:
 				write UDC's name found in /sys/class/udc/*
 				to bind a gadget, empty string "" to unbind.
 
+		max_speed	- maximum speed the driver supports. Valid
+				names are super-speed-plus, super-speed,
+				high-speed, full-speed, and low-speed.
+
 		bDeviceClass	- USB device class code
 		bDeviceSubClass	- USB device subclass code
 		bDeviceProtocol	- USB device protocol code
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy
index 29aaedf33246..cd572912c593 100644
--- a/Documentation/ABI/testing/ima_policy
+++ b/Documentation/ABI/testing/ima_policy
@@ -25,11 +25,11 @@ Description:
 			lsm:	[[subj_user=] [subj_role=] [subj_type=]
 				 [obj_user=] [obj_role=] [obj_type=]]
 			option:	[[appraise_type=]] [template=] [permit_directio]
-				[appraise_flag=]
+				[appraise_flag=] [keyrings=]
 		base: 	func:= [BPRM_CHECK][MMAP_CHECK][CREDS_CHECK][FILE_CHECK][MODULE_CHECK]
 				[FIRMWARE_CHECK]
 				[KEXEC_KERNEL_CHECK] [KEXEC_INITRAMFS_CHECK]
-				[KEXEC_CMDLINE]
+				[KEXEC_CMDLINE] [KEY_CHECK]
 			mask:= [[^]MAY_READ] [[^]MAY_WRITE] [[^]MAY_APPEND]
 			       [[^]MAY_EXEC]
 			fsmagic:= hex value
@@ -42,6 +42,9 @@ Description:
 			appraise_flag:= [check_blacklist]
 			Currently, blacklist check is only for files signed with appended
 			signature.
+			keyrings:= list of keyrings
+			(eg, .builtin_trusted_keys|.ima). Only valid
+			when action is "measure" and func is KEY_CHECK.
 			template:= name of a defined IMA template type
 			(eg, ima-ng). Only valid when action is "measure".
 			pcr:= decimal value
@@ -113,3 +116,12 @@ Description:
 		Example of appraise rule allowing modsig appended signatures:
 
 			appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig
+
+		Example of measure rule using KEY_CHECK to measure all keys:
+
+			measure func=KEY_CHECK
+
+		Example of measure rule using KEY_CHECK to only measure
+		keys added to .builtin_trusted_keys or .ima keyring:
+
+			measure func=KEY_CHECK keyrings=.builtin_trusted_keys|.ima
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index faaa2166d741..d3e53a6d8331 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1726,3 +1726,16 @@ Contact:	linux-iio@vger.kernel.org
 Description:
 		List of valid periods (in seconds) for which the light intensity
 		must be above the threshold level before interrupt is asserted.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
+KernelVersion:	5.5
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Center frequency in Hz for a notch filter. Used i.e. for line
+		noise suppression.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
+KernelVersion:	5.5
+Contact:	linux-iio@vger.kernel.org
+Description:
+		One of the following thermocouple types: B, E, J, K, N, R, S, T.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer b/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer
new file mode 100644
index 000000000000..d526e6571001
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer
@@ -0,0 +1,19 @@
+What:		/sys/bus/iio/devices/iio:deviceX/buffer/length_align_bytes
+KernelVersion:	5.4
+Contact:	linux-iio@vger.kernel.org
+Description:
+		DMA buffers tend to have a alignment requirement for the
+		buffers. If this alignment requirement is not met samples might
+		be dropped from the buffer.
+
+		This property reports the alignment requirements in bytes.
+		This means that the buffer size in bytes needs to be a integer
+		multiple of the number reported by this file.
+
+		The alignment requirements in number of sample sets will depend
+		on the enabled channels and the bytes per channel. This means
+		that the alignment requirement in samples sets might change
+		depending on which and how many channels are enabled. Whereas
+		the alignment requirement reported in bytes by this property
+		will remain static and does not depend on which channels are
+		enabled.
diff --git a/Documentation/ABI/testing/sysfs-bus-mdio b/Documentation/ABI/testing/sysfs-bus-mdio
new file mode 100644
index 000000000000..da86efc7781b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-mdio
@@ -0,0 +1,63 @@
+What:          /sys/bus/mdio_bus/devices/.../statistics/
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		This folder contains statistics about global and per
+		MDIO bus address statistics.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/transfers
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of transfers for this MDIO bus.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/errors
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of transfer errors for this MDIO bus.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/writes
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of write transactions for this MDIO bus.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/reads
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of read transactions for this MDIO bus.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/transfers_<addr>
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of transfers for this MDIO bus address.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/errors_<addr>
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of transfer errors for this MDIO bus address.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/writes_<addr>
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of write transactions for this MDIO bus address.
+
+What:          /sys/bus/mdio_bus/devices/.../statistics/reads_<addr>
+Date:          January 2020
+KernelVersion: 5.6
+Contact:       netdev@vger.kernel.org
+Description:
+		Total number of read transactions for this MDIO bus address.
diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq
index 01196e19afca..9758eb85ade3 100644
--- a/Documentation/ABI/testing/sysfs-class-devfreq
+++ b/Documentation/ABI/testing/sysfs-class-devfreq
@@ -7,6 +7,13 @@ Description:
 		The name of devfreq object denoted as ... is same as the
 		name of device using devfreq.
 
+What:		/sys/class/devfreq/.../name
+Date:		November 2019
+Contact:	Chanwoo Choi <cw00.choi@samsung.com>
+Description:
+		The /sys/class/devfreq/.../name shows the name of device
+		of the corresponding devfreq object.
+
 What:		/sys/class/devfreq/.../governor
 Date:		September 2011
 Contact:	MyungJoo Ham <myungjoo.ham@samsung.com>
@@ -48,12 +55,15 @@ What:		/sys/class/devfreq/.../trans_stat
 Date:		October 2012
 Contact:	MyungJoo Ham <myungjoo.ham@samsung.com>
 Description:
-		This ABI shows the statistics of devfreq behavior on a
-		specific device. It shows the time spent in each state and
-		the number of transitions between states.
+		This ABI shows or clears the statistics of devfreq behavior
+		on a specific device. It shows the time spent in each state
+		and the number of transitions between states.
 		In order to activate this ABI, the devfreq target device
 		driver should provide the list of available frequencies
-		with its profile.
+		with its profile. If need to reset the statistics of devfreq
+		behavior on a specific device, enter 0(zero) to 'trans_stat'
+		as following:
+			echo 0 > /sys/class/devfreq/.../trans_stat
 
 What:		/sys/class/devfreq/.../userspace/set_freq
 Date:		September 2011
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 27edc06e2495..bf3b48f022dc 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -189,7 +189,8 @@ Description:
 		Access: Read
 		Valid values: "Unknown", "Good", "Overheat", "Dead",
 			      "Over voltage", "Unspecified failure", "Cold",
-			      "Watchdog timer expire", "Safety timer expire"
+			      "Watchdog timer expire", "Safety timer expire",
+			      "Over current"
 
 What:		/sys/class/power_supply/<supply_name>/precharge_current
 Date:		June 2017
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index fc20cde63d1e..2e0e3b45d02a 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -196,6 +196,12 @@ Description:
 		does not reflect it. Likewise, if one enables a deep state but a
 		lighter state still is disabled, then this has no effect.
 
+What:		/sys/devices/system/cpu/cpuX/cpuidle/stateN/default_status
+Date:		December 2019
+KernelVersion:	v5.6
+Contact:	Linux power management list <linux-pm@vger.kernel.org>
+Description:
+		(RO) The default status of this state, "enabled" or "disabled".
 
 What:		/sys/devices/system/cpu/cpuX/cpuidle/stateN/residency
 Date:		March 2014
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 9e99f2909612..1efac0ddb417 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -46,3 +46,13 @@ Description:
 			* 0 - normal,
 			* 1 - overboost,
 			* 2 - silent
+
+What:		/sys/devices/platform/<platform>/throttle_thermal_policy
+Date:		Dec 2019
+KernelVersion:	5.6
+Contact:	"Leonid Maksymchuk" <leonmaxx@gmail.com>
+Description:
+		Throttle thermal policy mode:
+			* 0 - default,
+			* 1 - overboost,
+			* 2 - silent
diff --git a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
index c65a80574869..401d202f478b 100644
--- a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
+++ b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
@@ -1,4 +1,4 @@
-What:		/sys/bus/platform/devices/MLNXBF04:00/driver/lifecycle_state
+What:		/sys/bus/platform/devices/MLNXBF04:00/lifecycle_state
 Date:		Oct 2019
 KernelVersion:	5.5
 Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -10,7 +10,7 @@ Description:
 		  GA Non-Secured - Non-Secure chip and not able to change state
 		  RMA - Return Merchandise Authorization
 
-What:		/sys/bus/platform/devices/MLNXBF04:00/driver/post_reset_wdog
+What:		/sys/bus/platform/devices/MLNXBF04:00/post_reset_wdog
 Date:		Oct 2019
 KernelVersion:	5.5
 Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -19,7 +19,7 @@ Description:
 		to reboot the chip and recover it to the old state if the new
 		boot partition fails.
 
-What:		/sys/bus/platform/devices/MLNXBF04:00/driver/reset_action
+What:		/sys/bus/platform/devices/MLNXBF04:00/reset_action
 Date:		Oct 2019
 KernelVersion:	5.5
 Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -30,7 +30,7 @@ Description:
 		  emmc - boot from the onchip eMMC
 		  emmc_legacy - boot from the onchip eMMC in legacy (slow) mode
 
-What:		/sys/bus/platform/devices/MLNXBF04:00/driver/second_reset_action
+What:		/sys/bus/platform/devices/MLNXBF04:00/second_reset_action
 Date:		Oct 2019
 KernelVersion:	5.5
 Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -44,7 +44,7 @@ Description:
 		  swap_emmc - swap the primary / secondary boot partition
 		  none - cancel the action
 
-What:		/sys/bus/platform/devices/MLNXBF04:00/driver/secure_boot_fuse_state
+What:		/sys/bus/platform/devices/MLNXBF04:00/secure_boot_fuse_state
 Date:		Oct 2019
 KernelVersion:	5.5
 Contact:	"Liming Sun <lsun@mellanox.com>"
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 6f87b9dd384b..5e6ead29124c 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -407,3 +407,16 @@ Contact:	Kalesh Singh <kaleshsingh96@gmail.com>
 Description:
 		The /sys/power/suspend_stats/last_failed_step file contains
 		the last failed step in the suspend/resume path.
+
+What:		/sys/power/sync_on_suspend
+Date:		October 2019
+Contact:	Jonas Meurer <jonas@freesources.org>
+Description:
+		This file controls whether or not the kernel will sync()
+		filesystems during system suspend (after freezing user space
+		and before suspending devices).
+
+		Writing a "1" to this file enables the sync() and writing a "0"
+		disables it.  Reads from the file return the current value.
+		The default is "1" if the build-time "SUSPEND_SKIP_SYNC" config
+		flag is unset, or "0" otherwise.
diff --git a/Documentation/ABI/testing/usb-charger-uevent b/Documentation/ABI/testing/usb-charger-uevent
new file mode 100644
index 000000000000..419a92dd0d86
--- /dev/null
+++ b/Documentation/ABI/testing/usb-charger-uevent
@@ -0,0 +1,46 @@
+What:		Raise a uevent when a USB charger is inserted or removed
+Date:		2020-01-14
+KernelVersion:	5.6
+Contact:	linux-usb@vger.kernel.org
+Description:	There are two USB charger states:
+		USB_CHARGER_ABSENT
+		USB_CHARGER_PRESENT
+		There are five USB charger types:
+		USB_CHARGER_UNKNOWN_TYPE: Charger type is unknown
+		USB_CHARGER_SDP_TYPE: Standard Downstream Port
+		USB_CHARGER_CDP_TYPE: Charging Downstream Port
+		USB_CHARGER_DCP_TYPE: Dedicated Charging Port
+		USB_CHARGER_ACA_TYPE: Accessory Charging Adapter
+		https://www.usb.org/document-library/battery-charging-v12-spec-and-adopters-agreement
+
+		Here are two examples taken using udevadm monitor -p when
+		USB charger is online:
+		UDEV  change   /devices/soc0/usbphynop1 (platform)
+		ACTION=change
+		DEVPATH=/devices/soc0/usbphynop1
+		DRIVER=usb_phy_generic
+		MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv
+		OF_COMPATIBLE_0=usb-nop-xceiv
+		OF_COMPATIBLE_N=1
+		OF_FULLNAME=/usbphynop1
+		OF_NAME=usbphynop1
+		SEQNUM=2493
+		SUBSYSTEM=platform
+		USB_CHARGER_STATE=USB_CHARGER_PRESENT
+		USB_CHARGER_TYPE=USB_CHARGER_SDP_TYPE
+		USEC_INITIALIZED=227422826
+
+		USB charger is offline:
+		KERNEL change   /devices/soc0/usbphynop1 (platform)
+		ACTION=change
+		DEVPATH=/devices/soc0/usbphynop1
+		DRIVER=usb_phy_generic
+		MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv
+		OF_COMPATIBLE_0=usb-nop-xceiv
+		OF_COMPATIBLE_N=1
+		OF_FULLNAME=/usbphynop1
+		OF_NAME=usbphynop1
+		SEQNUM=2494
+		SUBSYSTEM=platform
+		USB_CHARGER_STATE=USB_CHARGER_ABSENT
+		USB_CHARGER_TYPE=USB_CHARGER_UNKNOWN_TYPE