mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 04:30:52 +07:00
e81d372ff9
Pull LED subsystem update from Bryan Wu. * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (47 commits) leds: leds-lp5521: return an error code on error in probe() leds: leds-clevo-mail: Use pr_* instead of printks leds: leds-rb532: Fix checkpatch errors leds: led-triggers: Fix checkpatch warnings leds: ledtrig-backlight: Fix checkpatch error leds: leds-wrap: Use <linux/io.h> instead of <asm/io.h> leds: leds-wm8350: Use dev_err instead of printk leds: leds-pwm: Fix checkpatch warning leds: leds-pca955x: Use dev_info instead of printk leds: leds-net48xx: Use linux/io.h instead of asm/io.h leds: leds-lt3593: Fix checkpatch warnings leds: leds-gpio: Use dev_info instead of printk leds: leds-da903x: Fix checkpatch error and warnings leds: leds-bd2802: Fix checkpatch warnings leds: leds-adp5520: Fix checkpatch warnings leds: led-class: Fix checkpatch warning leds: leds-ns2: use devm_gpio_request_one leds: leds-lt3593: use devm_gpio_request_one leds: leds-gpio: use devm_gpio_request_one leds: lp3944: Fix return value ...
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*
|
|
* Copyright 2006 - Florian Fainelli <florian@openwrt.org>
|
|
*
|
|
* Control the Cobalt Qube/RaQ front LED
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/types.h>
|
|
|
|
#define LED_FRONT_LEFT 0x01
|
|
#define LED_FRONT_RIGHT 0x02
|
|
|
|
static void __iomem *led_port;
|
|
static u8 led_value;
|
|
|
|
static void qube_front_led_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
if (brightness)
|
|
led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
|
|
else
|
|
led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT);
|
|
writeb(led_value, led_port);
|
|
}
|
|
|
|
static struct led_classdev qube_front_led = {
|
|
.name = "qube::front",
|
|
.brightness = LED_FULL,
|
|
.brightness_set = qube_front_led_set,
|
|
.default_trigger = "default-on",
|
|
};
|
|
|
|
static int cobalt_qube_led_probe(struct platform_device *pdev)
|
|
{
|
|
struct resource *res;
|
|
int retval;
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (!res)
|
|
return -EBUSY;
|
|
|
|
led_port = devm_ioremap(&pdev->dev, res->start, resource_size(res));
|
|
if (!led_port)
|
|
return -ENOMEM;
|
|
|
|
led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
|
|
writeb(led_value, led_port);
|
|
|
|
retval = led_classdev_register(&pdev->dev, &qube_front_led);
|
|
if (retval)
|
|
goto err_null;
|
|
|
|
return 0;
|
|
|
|
err_null:
|
|
led_port = NULL;
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int cobalt_qube_led_remove(struct platform_device *pdev)
|
|
{
|
|
led_classdev_unregister(&qube_front_led);
|
|
|
|
if (led_port)
|
|
led_port = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver cobalt_qube_led_driver = {
|
|
.probe = cobalt_qube_led_probe,
|
|
.remove = cobalt_qube_led_remove,
|
|
.driver = {
|
|
.name = "cobalt-qube-leds",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(cobalt_qube_led_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Front LED support for Cobalt Server");
|
|
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
|
|
MODULE_ALIAS("platform:cobalt-qube-leds");
|