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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 23:39:21 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 23:39:21 +0300 |
commit | 9d71941d39fb876271df72394518a98ae079e5a3 (patch) | |
tree | 8b90df2efd48475dbdcc866a141293bdf9d5ca8b /drivers/input/misc/rk805-pwrkey.c | |
parent | dfd9e6d231e157d2066825ed17852cce822c1f46 (diff) | |
parent | a6cbfa1e6d38c4b3ab0ce7e3aea4bb4e744f24b8 (diff) | |
download | linux-9d71941d39fb876271df72394518a98ae079e5a3.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new GPIO bit-banging driver implementing PS/2 protocol
- a new power key driver for Rockchip RK805 PMIC
- bunch of patches constifying various device ID structures
- Elan I2C touchpad driver now supports devices with 2 buttons
- other assorted fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (76 commits)
Input: byd - make array seq static, reduces object code size
Input: xilinx_ps2 - fix multiline comment style
Input: pxa27x_keypad - handle return value of clk_prepare_enable
Input: tegra-kbc - handle return value of clk_prepare_enable
Input: PS/2 gpio bit banging driver for serio bus
Input: xen-kbdfront - enable auto repeat for xen keyboard frontend driver
Input: ambakmi - constify amba_id
Input: atmel_mxt_ts - add support for reset line
Input: atmel_mxt_ts - use more managed resources
Input: wacom_w8001 - constify serio_device_id
Input: tsc40 - constify serio_device_id
Input: touchwin - constify serio_device_id
Input: touchright - constify serio_device_id
Input: touchit213 - constify serio_device_id
Input: penmount - constify serio_device_id
Input: mtouch - constify serio_device_id
Input: inexio - constify serio_device_id
Input: hampshire - constify serio_device_id
Input: gunze - constify serio_device_id
Input: fujitsu_ts - constify serio_device_id
...
Diffstat (limited to 'drivers/input/misc/rk805-pwrkey.c')
-rw-r--r-- | drivers/input/misc/rk805-pwrkey.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/input/misc/rk805-pwrkey.c b/drivers/input/misc/rk805-pwrkey.c new file mode 100644 index 000000000000..921003963a53 --- /dev/null +++ b/drivers/input/misc/rk805-pwrkey.c @@ -0,0 +1,111 @@ +/* + * Rockchip RK805 PMIC Power Key driver + * + * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd + * + * Author: Joseph Chen <chenjh@rock-chips.com> + * + * 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. + */ + +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +static irqreturn_t pwrkey_fall_irq(int irq, void *_pwr) +{ + struct input_dev *pwr = _pwr; + + input_report_key(pwr, KEY_POWER, 1); + input_sync(pwr); + + return IRQ_HANDLED; +} + +static irqreturn_t pwrkey_rise_irq(int irq, void *_pwr) +{ + struct input_dev *pwr = _pwr; + + input_report_key(pwr, KEY_POWER, 0); + input_sync(pwr); + + return IRQ_HANDLED; +} + +static int rk805_pwrkey_probe(struct platform_device *pdev) +{ + struct input_dev *pwr; + int fall_irq, rise_irq; + int err; + + pwr = devm_input_allocate_device(&pdev->dev); + if (!pwr) { + dev_err(&pdev->dev, "Can't allocate power button\n"); + return -ENOMEM; + } + + pwr->name = "rk805 pwrkey"; + pwr->phys = "rk805_pwrkey/input0"; + pwr->id.bustype = BUS_HOST; + input_set_capability(pwr, EV_KEY, KEY_POWER); + + fall_irq = platform_get_irq(pdev, 0); + if (fall_irq < 0) { + dev_err(&pdev->dev, "Can't get fall irq: %d\n", fall_irq); + return fall_irq; + } + + rise_irq = platform_get_irq(pdev, 1); + if (rise_irq < 0) { + dev_err(&pdev->dev, "Can't get rise irq: %d\n", rise_irq); + return rise_irq; + } + + err = devm_request_any_context_irq(&pwr->dev, fall_irq, + pwrkey_fall_irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "rk805_pwrkey_fall", pwr); + if (err < 0) { + dev_err(&pdev->dev, "Can't register fall irq: %d\n", err); + return err; + } + + err = devm_request_any_context_irq(&pwr->dev, rise_irq, + pwrkey_rise_irq, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "rk805_pwrkey_rise", pwr); + if (err < 0) { + dev_err(&pdev->dev, "Can't register rise irq: %d\n", err); + return err; + } + + err = input_register_device(pwr); + if (err) { + dev_err(&pdev->dev, "Can't register power button: %d\n", err); + return err; + } + + platform_set_drvdata(pdev, pwr); + device_init_wakeup(&pdev->dev, true); + + return 0; +} + +static struct platform_driver rk805_pwrkey_driver = { + .probe = rk805_pwrkey_probe, + .driver = { + .name = "rk805-pwrkey", + }, +}; +module_platform_driver(rk805_pwrkey_driver); + +MODULE_AUTHOR("Joseph Chen <chenjh@rock-chips.com>"); +MODULE_DESCRIPTION("RK805 PMIC Power Key driver"); +MODULE_LICENSE("GPL"); |