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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-02 20:20:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-02 20:20:12 -0700
commitf5a8eb632b562bd9c16c389f5db3a5260fba4157 (patch)
tree82687234d772ff8f72a31e598fe16553885c56c9 /drivers/input
parentc9297d284126b80c9cfd72c690e0da531c99fc48 (diff)
parentdd3b8c329aa270027fba61a02a12600972dc3983 (diff)
Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann: "This removes the entire architecture code for blackfin, cris, frv, m32r, metag, mn10300, score, and tile, including the associated device drivers. I have been working with the (former) maintainers for each one to ensure that my interpretation was right and the code is definitely unused in mainline kernels. Many had fond memories of working on the respective ports to start with and getting them included in upstream, but also saw no point in keeping the port alive without any users. In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems that all the SoC product lines are still around, but have not used the custom CPU architectures for several years at this point. In contrast, CPU instruction sets that remain popular and have actively maintained kernel ports tend to all be used across multiple licensees. [ See the new nds32 port merged in the previous commit for the next generation of "one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem" - Linus ] The removal came out of a discussion that is now documented at https://lwn.net/Articles/748074/. Unlike the original plans, I'm not marking any ports as deprecated but remove them all at once after I made sure that they are all unused. Some architectures (notably tile, mn10300, and blackfin) are still being shipped in products with old kernels, but those products will never be updated to newer kernel releases. After this series, we still have a few architectures without mainline gcc support: - unicore32 and hexagon both have very outdated gcc releases, but the maintainers promised to work on providing something newer. At least in case of hexagon, this will only be llvm, not gcc. - openrisc, risc-v and nds32 are still in the process of finishing their support or getting it added to mainline gcc in the first place. They all have patched gcc-7.3 ports that work to some degree, but complete upstream support won't happen before gcc-8.1. Csky posted their first kernel patch set last week, their situation will be similar [ Palmer Dabbelt points out that RISC-V support is in mainline gcc since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]" This really says it all: 2498 files changed, 95 insertions(+), 467668 deletions(-) * tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits) MAINTAINERS: UNICORE32: Change email account staging: iio: remove iio-trig-bfin-timer driver tty: hvc: remove tile driver tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers serial: remove tile uart driver serial: remove m32r_sio driver serial: remove blackfin drivers serial: remove cris/etrax uart drivers usb: Remove Blackfin references in USB support usb: isp1362: remove blackfin arch glue usb: musb: remove blackfin port usb: host: remove tilegx platform glue pwm: remove pwm-bfin driver i2c: remove bfin-twi driver spi: remove blackfin related host drivers watchdog: remove bfin_wdt driver can: remove bfin_can driver mmc: remove bfin_sdh driver input: misc: remove blackfin rotary driver input: keyboard: remove bf54x driver ...
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/joystick/analog.c2
-rw-r--r--drivers/input/keyboard/Kconfig9
-rw-r--r--drivers/input/keyboard/Makefile1
-rw-r--r--drivers/input/keyboard/bf54x-keys.c396
-rw-r--r--drivers/input/misc/Kconfig9
-rw-r--r--drivers/input/misc/Makefile1
-rw-r--r--drivers/input/misc/bfin_rotary.c294
7 files changed, 1 insertions, 711 deletions
diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
index c868a878c84f..eefac7978f93 100644
--- a/drivers/input/joystick/analog.c
+++ b/drivers/input/joystick/analog.c
@@ -163,7 +163,7 @@ static unsigned int get_time_pit(void)
#define GET_TIME(x) do { x = (unsigned int)rdtsc(); } while (0)
#define DELTA(x,y) ((y)-(x))
#define TIME_NAME "TSC"
-#elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV) || defined(CONFIG_TILE)
+#elif defined(__alpha__) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV)
#define GET_TIME(x) do { x = get_cycles(); } while (0)
#define DELTA(x,y) ((y)-(x))
#define TIME_NAME "get_cycles"
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 4c4ab1ced235..2b469cc47a78 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -157,15 +157,6 @@ config KEYBOARD_QT2160
This driver can also be built as a module. If so, the module
will be called qt2160.
-config KEYBOARD_BFIN
- tristate "Blackfin BF54x keypad support"
- depends on (BF54x && !BF544)
- help
- Say Y here if you want to use the BF54x keypad.
-
- To compile this driver as a module, choose M here: the
- module will be called bf54x-keys.
-
config KEYBOARD_CLPS711X
tristate "CLPS711X Keypad support"
depends on OF_GPIO && (ARCH_CLPS711X || COMPILE_TEST)
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 526e68294e6e..8fab920afa58 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -13,7 +13,6 @@ obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
obj-$(CONFIG_KEYBOARD_BCM) += bcm-keypad.o
-obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o
obj-$(CONFIG_KEYBOARD_CAP11XX) += cap11xx.o
obj-$(CONFIG_KEYBOARD_CLPS711X) += clps711x-keypad.o
obj-$(CONFIG_KEYBOARD_CROS_EC) += cros_ec_keyb.o
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
deleted file mode 100644
index 8a07a426f88e..000000000000
--- a/drivers/input/keyboard/bf54x-keys.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * File: drivers/input/keyboard/bf54x-keys.c
- * Based on:
- * Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
- *
- * Created:
- * Description: keypad driver for Analog Devices Blackfin BF54x Processors
- *
- *
- * Modified:
- * Copyright 2007-2008 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/pm.h>
-#include <linux/sysctl.h>
-#include <linux/proc_fs.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-
-#include <asm/portmux.h>
-#include <mach/bf54x_keys.h>
-
-#define DRV_NAME "bf54x-keys"
-#define TIME_SCALE 100 /* 100 ns */
-#define MAX_MULT (0xFF * TIME_SCALE)
-#define MAX_RC 8 /* Max Row/Col */
-
-static const u16 per_rows[] = {
- P_KEY_ROW7,
- P_KEY_ROW6,
- P_KEY_ROW5,
- P_KEY_ROW4,
- P_KEY_ROW3,
- P_KEY_ROW2,
- P_KEY_ROW1,
- P_KEY_ROW0,
- 0
-};
-
-static const u16 per_cols[] = {
- P_KEY_COL7,
- P_KEY_COL6,
- P_KEY_COL5,
- P_KEY_COL4,
- P_KEY_COL3,
- P_KEY_COL2,
- P_KEY_COL1,
- P_KEY_COL0,
- 0
-};
-
-struct bf54x_kpad {
- struct input_dev *input;
- int irq;
- unsigned short lastkey;
- unsigned short *keycode;
- struct timer_list timer;
- unsigned int keyup_test_jiffies;
- unsigned short kpad_msel;
- unsigned short kpad_prescale;
- unsigned short kpad_ctl;
-};
-
-static inline int bfin_kpad_find_key(struct bf54x_kpad *bf54x_kpad,
- struct input_dev *input, u16 keyident)
-{
- u16 i;
-
- for (i = 0; i < input->keycodemax; i++)
- if (bf54x_kpad->keycode[i + input->keycodemax] == keyident)
- return bf54x_kpad->keycode[i];
- return -1;
-}
-
-static inline void bfin_keycodecpy(unsigned short *keycode,
- const unsigned int *pdata_kc,
- unsigned short keymapsize)
-{
- unsigned int i;
-
- for (i = 0; i < keymapsize; i++) {
- keycode[i] = pdata_kc[i] & 0xffff;
- keycode[i + keymapsize] = pdata_kc[i] >> 16;
- }
-}
-
-static inline u16 bfin_kpad_get_prescale(u32 timescale)
-{
- u32 sclk = get_sclk();
-
- return ((((sclk / 1000) * timescale) / 1024) - 1);
-}
-
-static inline u16 bfin_kpad_get_keypressed(struct bf54x_kpad *bf54x_kpad)
-{
- return (bfin_read_KPAD_STAT() & KPAD_PRESSED);
-}
-
-static inline void bfin_kpad_clear_irq(void)
-{
- bfin_write_KPAD_STAT(0xFFFF);
- bfin_write_KPAD_ROWCOL(0xFFFF);
-}
-
-static void bfin_kpad_timer(struct timer_list *t)
-{
- struct bf54x_kpad *bf54x_kpad = from_timer(bf54x_kpad, t, timer);
-
- if (bfin_kpad_get_keypressed(bf54x_kpad)) {
- /* Try again later */
- mod_timer(&bf54x_kpad->timer,
- jiffies + bf54x_kpad->keyup_test_jiffies);
- return;
- }
-
- input_report_key(bf54x_kpad->input, bf54x_kpad->lastkey, 0);
- input_sync(bf54x_kpad->input);
-
- /* Clear IRQ Status */
-
- bfin_kpad_clear_irq();
- enable_irq(bf54x_kpad->irq);
-}
-
-static irqreturn_t bfin_kpad_isr(int irq, void *dev_id)
-{
- struct platform_device *pdev = dev_id;
- struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
- struct input_dev *input = bf54x_kpad->input;
- int key;
- u16 rowcol = bfin_read_KPAD_ROWCOL();
-
- key = bfin_kpad_find_key(bf54x_kpad, input, rowcol);
-
- input_report_key(input, key, 1);
- input_sync(input);
-
- if (bfin_kpad_get_keypressed(bf54x_kpad)) {
- disable_irq_nosync(bf54x_kpad->irq);
- bf54x_kpad->lastkey = key;
- mod_timer(&bf54x_kpad->timer,
- jiffies + bf54x_kpad->keyup_test_jiffies);
- } else {
- input_report_key(input, key, 0);
- input_sync(input);
-
- bfin_kpad_clear_irq();
- }
-
- return IRQ_HANDLED;
-}
-
-static int bfin_kpad_probe(struct platform_device *pdev)
-{
- struct bf54x_kpad *bf54x_kpad;
- struct bfin_kpad_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct input_dev *input;
- int i, error;
-
- if (!pdata->rows || !pdata->cols || !pdata->keymap) {
- dev_err(&pdev->dev, "no rows, cols or keymap from pdata\n");
- return -EINVAL;
- }
-
- if (!pdata->keymapsize ||
- pdata->keymapsize > (pdata->rows * pdata->cols)) {
- dev_err(&pdev->dev, "invalid keymapsize\n");
- return -EINVAL;
- }
-
- bf54x_kpad = kzalloc(sizeof(struct bf54x_kpad), GFP_KERNEL);
- if (!bf54x_kpad)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, bf54x_kpad);
-
- /* Allocate memory for keymap followed by private LUT */
- bf54x_kpad->keycode = kmalloc(pdata->keymapsize *
- sizeof(unsigned short) * 2, GFP_KERNEL);
- if (!bf54x_kpad->keycode) {
- error = -ENOMEM;
- goto out;
- }
-
- if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
- !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
- dev_warn(&pdev->dev,
- "invalid platform debounce/columndrive time\n");
- bfin_write_KPAD_MSEL(0xFF0); /* Default MSEL */
- } else {
- bfin_write_KPAD_MSEL(
- ((pdata->debounce_time / TIME_SCALE)
- & DBON_SCALE) |
- (((pdata->coldrive_time / TIME_SCALE) << 8)
- & COLDRV_SCALE));
-
- }
-
- if (!pdata->keyup_test_interval)
- bf54x_kpad->keyup_test_jiffies = msecs_to_jiffies(50);
- else
- bf54x_kpad->keyup_test_jiffies =
- msecs_to_jiffies(pdata->keyup_test_interval);
-
- if (peripheral_request_list((u16 *)&per_rows[MAX_RC - pdata->rows],
- DRV_NAME)) {
- dev_err(&pdev->dev, "requesting peripherals failed\n");
- error = -EFAULT;
- goto out0;
- }
-
- if (peripheral_request_list((u16 *)&per_cols[MAX_RC - pdata->cols],
- DRV_NAME)) {
- dev_err(&pdev->dev, "requesting peripherals failed\n");
- error = -EFAULT;
- goto out1;
- }
-
- bf54x_kpad->irq = platform_get_irq(pdev, 0);
- if (bf54x_kpad->irq < 0) {
- error = -ENODEV;
- goto out2;
- }
-
- error = request_irq(bf54x_kpad->irq, bfin_kpad_isr,
- 0, DRV_NAME, pdev);
- if (error) {
- dev_err(&pdev->dev, "unable to claim irq %d\n",
- bf54x_kpad->irq);
- goto out2;
- }
-
- input = input_allocate_device();
- if (!input) {
- error = -ENOMEM;
- goto out3;
- }
-
- bf54x_kpad->input = input;
-
- input->name = pdev->name;
- input->phys = "bf54x-keys/input0";
- input->dev.parent = &pdev->dev;
-
- input->id.bustype = BUS_HOST;
- input->id.vendor = 0x0001;
- input->id.product = 0x0001;
- input->id.version = 0x0100;
-
- input->keycodesize = sizeof(unsigned short);
- input->keycodemax = pdata->keymapsize;
- input->keycode = bf54x_kpad->keycode;
-
- bfin_keycodecpy(bf54x_kpad->keycode, pdata->keymap, pdata->keymapsize);
-
- /* setup input device */
- __set_bit(EV_KEY, input->evbit);
-
- if (pdata->repeat)
- __set_bit(EV_REP, input->evbit);
-
- for (i = 0; i < input->keycodemax; i++)
- if (bf54x_kpad->keycode[i] <= KEY_MAX)
- __set_bit(bf54x_kpad->keycode[i], input->keybit);
- __clear_bit(KEY_RESERVED, input->keybit);
-
- error = input_register_device(input);
- if (error) {
- dev_err(&pdev->dev, "unable to register input device\n");
- goto out4;
- }
-
- /* Init Keypad Key Up/Release test timer */
-
- timer_setup(&bf54x_kpad->timer, bfin_kpad_timer, 0);
-
- bfin_write_KPAD_PRESCALE(bfin_kpad_get_prescale(TIME_SCALE));
-
- bfin_write_KPAD_CTL((((pdata->cols - 1) << 13) & KPAD_COLEN) |
- (((pdata->rows - 1) << 10) & KPAD_ROWEN) |
- (2 & KPAD_IRQMODE));
-
- bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN);
-
- device_init_wakeup(&pdev->dev, 1);
-
- return 0;
-
-out4:
- input_free_device(input);
-out3:
- free_irq(bf54x_kpad->irq, pdev);
-out2:
- peripheral_free_list((u16 *)&per_cols[MAX_RC - pdata->cols]);
-out1:
- peripheral_free_list((u16 *)&per_rows[MAX_RC - pdata->rows]);
-out0:
- kfree(bf54x_kpad->keycode);
-out:
- kfree(bf54x_kpad);
-
- return error;
-}
-
-static int bfin_kpad_remove(struct platform_device *pdev)
-{
- struct bfin_kpad_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-
- del_timer_sync(&bf54x_kpad->timer);
- free_irq(bf54x_kpad->irq, pdev);
-
- input_unregister_device(bf54x_kpad->input);
-
- peripheral_free_list((u16 *)&per_rows[MAX_RC - pdata->rows]);
- peripheral_free_list((u16 *)&per_cols[MAX_RC - pdata->cols]);
-
- kfree(bf54x_kpad->keycode);
- kfree(bf54x_kpad);
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-
- bf54x_kpad->kpad_msel = bfin_read_KPAD_MSEL();
- bf54x_kpad->kpad_prescale = bfin_read_KPAD_PRESCALE();
- bf54x_kpad->kpad_ctl = bfin_read_KPAD_CTL();
-
- if (device_may_wakeup(&pdev->dev))
- enable_irq_wake(bf54x_kpad->irq);
-
- return 0;
-}
-
-static int bfin_kpad_resume(struct platform_device *pdev)
-{
- struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-
- bfin_write_KPAD_MSEL(bf54x_kpad->kpad_msel);
- bfin_write_KPAD_PRESCALE(bf54x_kpad->kpad_prescale);
- bfin_write_KPAD_CTL(bf54x_kpad->kpad_ctl);
-
- if (device_may_wakeup(&pdev->dev))
- disable_irq_wake(bf54x_kpad->irq);
-
- return 0;
-}
-#else
-# define bfin_kpad_suspend NULL
-# define bfin_kpad_resume NULL
-#endif
-
-static struct platform_driver bfin_kpad_device_driver = {
- .driver = {
- .name = DRV_NAME,
- },
- .probe = bfin_kpad_probe,
- .remove = bfin_kpad_remove,
- .suspend = bfin_kpad_suspend,
- .resume = bfin_kpad_resume,
-};
-module_platform_driver(bfin_kpad_device_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Keypad driver for BF54x Processors");
-MODULE_ALIAS("platform:bf54x-keys");
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 62a1312a7387..e9770f5e3f77 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -655,15 +655,6 @@ config INPUT_DM355EVM
To compile this driver as a module, choose M here: the
module will be called dm355evm_keys.
-config INPUT_BFIN_ROTARY
- tristate "Blackfin Rotary support"
- depends on BF54x || BF52x
- help
- Say Y here if you want to use the Blackfin Rotary.
-
- To compile this driver as a module, choose M here: the
- module will be called bfin-rotary.
-
config INPUT_WM831X_ON
tristate "WM831X ON pin"
depends on MFD_WM831X
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index a8f61af865aa..eb9c6c3ec530 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_INPUT_ARIZONA_HAPTICS) += arizona-haptics.o
obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
obj-$(CONFIG_INPUT_ATMEL_CAPTOUCH) += atmel_captouch.o
-obj-$(CONFIG_INPUT_BFIN_ROTARY) += bfin_rotary.o
obj-$(CONFIG_INPUT_BMA150) += bma150.o
obj-$(CONFIG_INPUT_CM109) += cm109.o
obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
diff --git a/drivers/input/misc/bfin_rotary.c b/drivers/input/misc/bfin_rotary.c
deleted file mode 100644
index 799ce3d2820e..000000000000
--- a/drivers/input/misc/bfin_rotary.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/*
- * Rotary counter driver for Analog Devices Blackfin Processors
- *
- * Copyright 2008-2009 Analog Devices Inc.
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/pm.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-#include <linux/platform_data/bfin_rotary.h>
-
-#include <asm/portmux.h>
-
-#define CNT_CONFIG_OFF 0 /* CNT Config Offset */
-#define CNT_IMASK_OFF 4 /* CNT Interrupt Mask Offset */
-#define CNT_STATUS_OFF 8 /* CNT Status Offset */
-#define CNT_COMMAND_OFF 12 /* CNT Command Offset */
-#define CNT_DEBOUNCE_OFF 16 /* CNT Debounce Offset */
-#define CNT_COUNTER_OFF 20 /* CNT Counter Offset */
-#define CNT_MAX_OFF 24 /* CNT Maximum Count Offset */
-#define CNT_MIN_OFF 28 /* CNT Minimum Count Offset */
-
-struct bfin_rot {
- struct input_dev *input;
- void __iomem *base;
- int irq;
- unsigned int up_key;
- unsigned int down_key;
- unsigned int button_key;
- unsigned int rel_code;
-
- unsigned short mode;
- unsigned short debounce;
-
- unsigned short cnt_config;
- unsigned short cnt_imask;
- unsigned short cnt_debounce;
-};
-
-static void report_key_event(struct input_dev *input, int keycode)
-{
- /* simulate a press-n-release */
- input_report_key(input, keycode, 1);
- input_sync(input);
- input_report_key(input, keycode, 0);
- input_sync(input);
-}
-
-static void report_rotary_event(struct bfin_rot *rotary, int delta)
-{
- struct input_dev *input = rotary->input;
-
- if (rotary->up_key) {
- report_key_event(input,
- delta > 0 ? rotary->up_key : rotary->down_key);
- } else {
- input_report_rel(input, rotary->rel_code, delta);
- input_sync(input);
- }
-}
-
-static irqreturn_t bfin_rotary_isr(int irq, void *dev_id)
-{
- struct bfin_rot *rotary = dev_id;
- int delta;
-
- switch (readw(rotary->base + CNT_STATUS_OFF)) {
-
- case ICII:
- break;
-
- case UCII:
- case DCII:
- delta = readl(rotary->base + CNT_COUNTER_OFF);
- if (delta)
- report_rotary_event(rotary, delta);
- break;
-
- case CZMII:
- report_key_event(rotary->input, rotary->button_key);
- break;
-
- default:
- break;
- }
-
- writew(W1LCNT_ZERO, rotary->base + CNT_COMMAND_OFF); /* Clear COUNTER */
- writew(-1, rotary->base + CNT_STATUS_OFF); /* Clear STATUS */
-
- return IRQ_HANDLED;
-}
-
-static int bfin_rotary_open(struct input_dev *input)
-{
- struct bfin_rot *rotary = input_get_drvdata(input);
- unsigned short val;
-
- if (rotary->mode & ROT_DEBE)
- writew(rotary->debounce & DPRESCALE,
- rotary->base + CNT_DEBOUNCE_OFF);
-
- writew(rotary->mode & ~CNTE, rotary->base + CNT_CONFIG_OFF);
-
- val = UCIE | DCIE;
- if (rotary->button_key)
- val |= CZMIE;
- writew(val, rotary->base + CNT_IMASK_OFF);
-
- writew(rotary->mode | CNTE, rotary->base + CNT_CONFIG_OFF);
-
- return 0;
-}
-
-static void bfin_rotary_close(struct input_dev *input)
-{
- struct bfin_rot *rotary = input_get_drvdata(input);
-
- writew(0, rotary->base + CNT_CONFIG_OFF);
- writew(0, rotary->base + CNT_IMASK_OFF);
-}
-
-static void bfin_rotary_free_action(void *data)
-{
- peripheral_free_list(data);
-}
-
-static int bfin_rotary_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- const struct bfin_rotary_platform_data *pdata = dev_get_platdata(dev);
- struct bfin_rot *rotary;
- struct resource *res;
- struct input_dev *input;
- int error;
-
- /* Basic validation */
- if ((pdata->rotary_up_key && !pdata->rotary_down_key) ||
- (!pdata->rotary_up_key && pdata->rotary_down_key)) {
- return -EINVAL;
- }
-
- if (pdata->pin_list) {
- error = peripheral_request_list(pdata->pin_list,
- dev_name(dev));
- if (error) {
- dev_err(dev, "requesting peripherals failed: %d\n",
- error);
- return error;
- }
-
- error = devm_add_action_or_reset(dev, bfin_rotary_free_action,
- pdata->pin_list);
- if (error) {
- dev_err(dev, "setting cleanup action failed: %d\n",
- error);
- return error;
- }
- }
-
- rotary = devm_kzalloc(dev, sizeof(struct bfin_rot), GFP_KERNEL);
- if (!rotary)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- rotary->base = devm_ioremap_resource(dev, res);
- if (IS_ERR(rotary->base))
- return PTR_ERR(rotary->base);
-
- input = devm_input_allocate_device(dev);
- if (!input)
- return -ENOMEM;
-
- rotary->input = input;
-
- rotary->up_key = pdata->rotary_up_key;
- rotary->down_key = pdata->rotary_down_key;
- rotary->button_key = pdata->rotary_button_key;
- rotary->rel_code = pdata->rotary_rel_code;
-
- rotary->mode = pdata->mode;
- rotary->debounce = pdata->debounce;
-
- input->name = pdev->name;
- input->phys = "bfin-rotary/input0";
- input->dev.parent = dev;
-
- input_set_drvdata(input, rotary);
-
- input->id.bustype = BUS_HOST;
- input->id.vendor = 0x0001;
- input->id.product = 0x0001;
- input->id.version = 0x0100;
-
- input->open = bfin_rotary_open;
- input->close = bfin_rotary_close;
-
- if (rotary->up_key) {
- __set_bit(EV_KEY, input->evbit);
- __set_bit(rotary->up_key, input->keybit);
- __set_bit(rotary->down_key, input->keybit);
- } else {
- __set_bit(EV_REL, input->evbit);
- __set_bit(rotary->rel_code, input->relbit);
- }
-
- if (rotary->button_key) {
- __set_bit(EV_KEY, input->evbit);
- __set_bit(rotary->button_key, input->keybit);
- }
-
- /* Quiesce the device before requesting irq */
- bfin_rotary_close(input);
-
- rotary->irq = platform_get_irq(pdev, 0);
- if (rotary->irq < 0) {
- dev_err(dev, "No rotary IRQ specified\n");
- return -ENOENT;
- }
-
- error = devm_request_irq(dev, rotary->irq, bfin_rotary_isr,
- 0, dev_name(dev), rotary);
- if (error) {
- dev_err(dev, "unable to claim irq %d; error %d\n",
- rotary->irq, error);
- return error;
- }
-
- error = input_register_device(input);
- if (error) {
- dev_err(dev, "unable to register input device (%d)\n", error);
- return error;
- }
-
- platform_set_drvdata(pdev, rotary);
- device_init_wakeup(dev, 1);
-
- return 0;
-}
-
-static int __maybe_unused bfin_rotary_suspend(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct bfin_rot *rotary = platform_get_drvdata(pdev);
-
- rotary->cnt_config = readw(rotary->base + CNT_CONFIG_OFF);
- rotary->cnt_imask = readw(rotary->base + CNT_IMASK_OFF);
- rotary->cnt_debounce = readw(rotary->base + CNT_DEBOUNCE_OFF);
-
- if (device_may_wakeup(&pdev->dev))
- enable_irq_wake(rotary->irq);
-
- return 0;
-}
-
-static int __maybe_unused bfin_rotary_resume(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct bfin_rot *rotary = platform_get_drvdata(pdev);
-
- writew(rotary->cnt_debounce, rotary->base + CNT_DEBOUNCE_OFF);
- writew(rotary->cnt_imask, rotary->base + CNT_IMASK_OFF);
- writew(rotary->cnt_config & ~CNTE, rotary->base + CNT_CONFIG_OFF);
-
- if (device_may_wakeup(&pdev->dev))
- disable_irq_wake(rotary->irq);
-
- if (rotary->cnt_config & CNTE)
- writew(rotary->cnt_config, rotary->base + CNT_CONFIG_OFF);
-
- return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(bfin_rotary_pm_ops,
- bfin_rotary_suspend, bfin_rotary_resume);
-
-static struct platform_driver bfin_rotary_device_driver = {
- .probe = bfin_rotary_probe,
- .driver = {
- .name = "bfin-rotary",
- .pm = &bfin_rotary_pm_ops,
- },
-};
-module_platform_driver(bfin_rotary_device_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Rotary Counter driver for Blackfin Processors");
-MODULE_ALIAS("platform:bfin-rotary");