u-boot/drivers/misc/gpio_led.c
Thomas Chou ec3b498192 gpio_led: add gpio_request to __led_init
This patch adds the gpio usage request. The polarity is changed to
positive as suggested by Mike Frysinger.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
2010-07-12 11:30:52 -04:00

26 lines
546 B
C

/*
* Status LED driver based on GPIO access conventions of Linux
*
* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <status_led.h>
#include <asm/gpio.h>
void __led_init(led_id_t mask, int state)
{
gpio_request(mask, "gpio_led");
gpio_direction_output(mask, state == STATUS_LED_ON);
}
void __led_set(led_id_t mask, int state)
{
gpio_set_value(mask, state == STATUS_LED_ON);
}
void __led_toggle(led_id_t mask)
{
gpio_set_value(mask, !gpio_get_value(mask));
}