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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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154
drivers/leds/leds-wrap.c Normal file
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/*
* LEDs driver for PCEngines WRAP
*
* Copyright (C) 2006 Kristian Kielhofner <kris@krisk.org>
*
* Based on leds-net48xx.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/scx200_gpio.h>
#include <linux/module.h>
#define DRVNAME "wrap-led"
#define WRAP_POWER_LED_GPIO 2
#define WRAP_ERROR_LED_GPIO 3
#define WRAP_EXTRA_LED_GPIO 18
static struct platform_device *pdev;
static void wrap_power_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
scx200_gpio_set_low(WRAP_POWER_LED_GPIO);
else
scx200_gpio_set_high(WRAP_POWER_LED_GPIO);
}
static void wrap_error_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
scx200_gpio_set_low(WRAP_ERROR_LED_GPIO);
else
scx200_gpio_set_high(WRAP_ERROR_LED_GPIO);
}
static void wrap_extra_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
scx200_gpio_set_low(WRAP_EXTRA_LED_GPIO);
else
scx200_gpio_set_high(WRAP_EXTRA_LED_GPIO);
}
static struct led_classdev wrap_power_led = {
.name = "wrap::power",
.brightness_set = wrap_power_led_set,
.default_trigger = "default-on",
.flags = LED_CORE_SUSPENDRESUME,
};
static struct led_classdev wrap_error_led = {
.name = "wrap::error",
.brightness_set = wrap_error_led_set,
.flags = LED_CORE_SUSPENDRESUME,
};
static struct led_classdev wrap_extra_led = {
.name = "wrap::extra",
.brightness_set = wrap_extra_led_set,
.flags = LED_CORE_SUSPENDRESUME,
};
static int wrap_led_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &wrap_power_led);
if (ret < 0)
return ret;
ret = led_classdev_register(&pdev->dev, &wrap_error_led);
if (ret < 0)
goto err1;
ret = led_classdev_register(&pdev->dev, &wrap_extra_led);
if (ret < 0)
goto err2;
return ret;
err2:
led_classdev_unregister(&wrap_error_led);
err1:
led_classdev_unregister(&wrap_power_led);
return ret;
}
static int wrap_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&wrap_power_led);
led_classdev_unregister(&wrap_error_led);
led_classdev_unregister(&wrap_extra_led);
return 0;
}
static struct platform_driver wrap_led_driver = {
.probe = wrap_led_probe,
.remove = wrap_led_remove,
.driver = {
.name = DRVNAME,
.owner = THIS_MODULE,
},
};
static int __init wrap_led_init(void)
{
int ret;
if (!scx200_gpio_present()) {
ret = -ENODEV;
goto out;
}
ret = platform_driver_register(&wrap_led_driver);
if (ret < 0)
goto out;
pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
platform_driver_unregister(&wrap_led_driver);
goto out;
}
out:
return ret;
}
static void __exit wrap_led_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&wrap_led_driver);
}
module_init(wrap_led_init);
module_exit(wrap_led_exit);
MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>");
MODULE_DESCRIPTION("PCEngines WRAP LED driver");
MODULE_LICENSE("GPL");