mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-10-31 08:44:41 +00:00
d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* LEDs driver for Soekris net48xx
|
|
*
|
|
* Copyright (C) 2006 Chris Boot <bootc@bootc.net>
|
|
*
|
|
* Based on leds-ams-delta.c
|
|
*/
|
|
|
|
#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/nsc_gpio.h>
|
|
#include <linux/scx200_gpio.h>
|
|
#include <linux/module.h>
|
|
|
|
#define DRVNAME "net48xx-led"
|
|
#define NET48XX_ERROR_LED_GPIO 20
|
|
|
|
static struct platform_device *pdev;
|
|
|
|
static void net48xx_error_led_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
scx200_gpio_ops.gpio_set(NET48XX_ERROR_LED_GPIO, value ? 1 : 0);
|
|
}
|
|
|
|
static struct led_classdev net48xx_error_led = {
|
|
.name = "net48xx::error",
|
|
.brightness_set = net48xx_error_led_set,
|
|
.flags = LED_CORE_SUSPENDRESUME,
|
|
};
|
|
|
|
static int net48xx_led_probe(struct platform_device *pdev)
|
|
{
|
|
return devm_led_classdev_register(&pdev->dev, &net48xx_error_led);
|
|
}
|
|
|
|
static struct platform_driver net48xx_led_driver = {
|
|
.probe = net48xx_led_probe,
|
|
.driver = {
|
|
.name = DRVNAME,
|
|
},
|
|
};
|
|
|
|
static int __init net48xx_led_init(void)
|
|
{
|
|
int ret;
|
|
|
|
/* small hack, but scx200_gpio doesn't set .dev if the probe fails */
|
|
if (!scx200_gpio_ops.dev) {
|
|
ret = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
ret = platform_driver_register(&net48xx_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(&net48xx_led_driver);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit net48xx_led_exit(void)
|
|
{
|
|
platform_device_unregister(pdev);
|
|
platform_driver_unregister(&net48xx_led_driver);
|
|
}
|
|
|
|
module_init(net48xx_led_init);
|
|
module_exit(net48xx_led_exit);
|
|
|
|
MODULE_AUTHOR("Chris Boot <bootc@bootc.net>");
|
|
MODULE_DESCRIPTION("Soekris net48xx LED driver");
|
|
MODULE_LICENSE("GPL");
|
|
|