| Message ID | 1496907027-27197-1-git-send-email-chenjh@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Jun 08, 2017 at 03:30:27PM +0800, Jianhong Chen wrote: > From: chenjh <chenjh@rock-chips.com> > > This driver provides a input driver for the power > key on the Rockchip RK805 PMIC. > > Signed-off-by: chenjh <chenjh@rock-chips.com> > --- > drivers/input/misc/Kconfig | 6 +++ > drivers/input/misc/Makefile | 1 + > drivers/input/misc/rk805-pwrkey.c | 111 ++++++++++++++++++++++++++++++++++++++ > 3 files changed, 118 insertions(+) > create mode 100644 drivers/input/misc/rk805-pwrkey.c > > diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig > index 5b6c522..72dc4f5 100644 > --- a/drivers/input/misc/Kconfig > +++ b/drivers/input/misc/Kconfig > @@ -571,6 +571,12 @@ 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. > + > config INPUT_GPIO_ROTARY_ENCODER > tristate "Rotary encoders connected to GPIO pins" > depends on GPIOLIB || COMPILE_TEST > diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile > index b10523f..c27052a 100644 > --- a/drivers/input/misc/Makefile > +++ b/drivers/input/misc/Makefile > @@ -63,6 +63,7 @@ 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 > diff --git a/drivers/input/misc/rk805-pwrkey.c b/drivers/input/misc/rk805-pwrkey.c > new file mode 100644 > index 0000000..188eed5 > --- /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: Chen Jianhong <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->dev.parent = &pdev->dev; > + 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_threaded_irq(&pwr->dev, fall_irq, NULL, > + pwrkey_fall_irq, > + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, > + "rk805_pwrkey_fall", pwr); I think you want devm_request_any_context_irq() here as your interrupt handler does not need to sleep. > + if (err < 0) { > + dev_err(&pdev->dev, "Can't register fall irq: %d\n", err); > + return err; > + } > + > + err = devm_request_threaded_irq(&pwr->dev, rise_irq, NULL, > + 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("Chen Jianghong <chenjh@rock-chips.com>"); > +MODULE_DESCRIPTION("RK805 PMIC Power Key driver"); > +MODULE_LICENSE("GPL v2"); > -- > 1.9.1 > >
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 5b6c522..72dc4f5 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -571,6 +571,12 @@ 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. + config INPUT_GPIO_ROTARY_ENCODER tristate "Rotary encoders connected to GPIO pins" depends on GPIOLIB || COMPILE_TEST diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index b10523f..c27052a 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -63,6 +63,7 @@ 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 diff --git a/drivers/input/misc/rk805-pwrkey.c b/drivers/input/misc/rk805-pwrkey.c new file mode 100644 index 0000000..188eed5 --- /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: Chen Jianhong <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->dev.parent = &pdev->dev; + 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_threaded_irq(&pwr->dev, fall_irq, NULL, + 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_threaded_irq(&pwr->dev, rise_irq, NULL, + 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("Chen Jianghong <chenjh@rock-chips.com>"); +MODULE_DESCRIPTION("RK805 PMIC Power Key driver"); +MODULE_LICENSE("GPL v2");