mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
Input: add power key driver for Rockchip RK805 PMIC
This driver provides a input driver for the power key on the Rockchip RK805 PMIC. Signed-off-by: Joseph Chen <chenjh@rock-chips.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
parent
53a7ff8fb7
commit
5a35b85c2d
3 changed files with 123 additions and 0 deletions
|
@ -581,6 +581,17 @@ config INPUT_PWM_BEEPER
|
|||
To compile this driver as a module, choose M here: the module will be
|
||||
called pwm-beeper.
|
||||
|
||||
config INPUT_RK805_PWRKEY
|
||||
tristate "Rockchip RK805 PMIC power key support"
|
||||
depends on MFD_RK808
|
||||
help
|
||||
Select this option to enable power key driver for RK805.
|
||||
|
||||
If unsure, say N.
|
||||
|
||||
To compile this driver as a module, choose M here: the module will be
|
||||
called rk805_pwrkey.
|
||||
|
||||
config INPUT_GPIO_ROTARY_ENCODER
|
||||
tristate "Rotary encoders connected to GPIO pins"
|
||||
depends on GPIOLIB || COMPILE_TEST
|
||||
|
|
|
@ -64,6 +64,7 @@ obj-$(CONFIG_INPUT_REGULATOR_HAPTIC) += regulator-haptic.o
|
|||
obj-$(CONFIG_INPUT_RETU_PWRBUTTON) += retu-pwrbutton.o
|
||||
obj-$(CONFIG_INPUT_AXP20X_PEK) += axp20x-pek.o
|
||||
obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
|
||||
obj-$(CONFIG_INPUT_RK805_PWRKEY) += rk805-pwrkey.o
|
||||
obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
|
||||
obj-$(CONFIG_INPUT_SIRFSOC_ONKEY) += sirfsoc-onkey.o
|
||||
obj-$(CONFIG_INPUT_SOC_BUTTON_ARRAY) += soc_button_array.o
|
||||
|
|
111
drivers/input/misc/rk805-pwrkey.c
Normal file
111
drivers/input/misc/rk805-pwrkey.c
Normal file
|
@ -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");
|
Loading…
Reference in a new issue