luckfox-pico-sdk/sysdrv/source/kernel/drivers/input/misc/rk805-pwrkey.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

113 lines
2.5 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Rockchip RK805 PMIC Power Key driver
*
* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
*
* Author: Joseph Chen <chenjh@rock-chips.com>
*/
#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/of.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;
struct device_node *np;
int err;
np = of_get_child_by_name(pdev->dev.parent->of_node, "pwrkey");
if (np && !of_device_is_available(np)) {
dev_info(&pdev->dev, "device is disabled\n");
return -EINVAL;
}
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)
return fall_irq;
rise_irq = platform_get_irq(pdev, 1);
if (rise_irq < 0)
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_ALIAS("platform:rk805-pwrkey");
MODULE_AUTHOR("Joseph Chen <chenjh@rock-chips.com>");
MODULE_DESCRIPTION("RK805 PMIC Power Key driver");
MODULE_LICENSE("GPL");