linux/arch/arm/mach-ks8695/leds.c
Linus Walleij 386ab6400a ARM: 7037/1: mach-ks8695: fix GPIO LEDs
Enabling the LEDs on the ks8695 doesn't even compile, fix it with
a proper include and also replace a <mach/gpio.h> with the proper
<linux/gpio.h>.

Cc: zeal <zealcook@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Daniel Silverstone <dsilvers@simtec.co.uk>
Acked-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-22 09:12:55 +01:00

94 lines
1.7 KiB
C

/*
* LED driver for KS8695-based boards.
*
* Copyright (C) Andrew Victor
*
* 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/gpio.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <asm/leds.h>
#include <mach/devices.h>
static inline void ks8695_led_on(unsigned int led)
{
gpio_set_value(led, 0);
}
static inline void ks8695_led_off(unsigned int led)
{
gpio_set_value(led, 1);
}
static inline void ks8695_led_toggle(unsigned int led)
{
unsigned long is_off = gpio_get_value(led);
if (is_off)
ks8695_led_on(led);
else
ks8695_led_off(led);
}
/*
* Handle LED events.
*/
static void ks8695_leds_event(led_event_t evt)
{
unsigned long flags;
local_irq_save(flags);
switch(evt) {
case led_start: /* System startup */
ks8695_led_on(ks8695_leds_cpu);
break;
case led_stop: /* System stop / suspend */
ks8695_led_off(ks8695_leds_cpu);
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer: /* Every 50 timer ticks */
ks8695_led_toggle(ks8695_leds_timer);
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start: /* Entering idle state */
ks8695_led_off(ks8695_leds_cpu);
break;
case led_idle_end: /* Exit idle state */
ks8695_led_on(ks8695_leds_cpu);
break;
#endif
default:
break;
}
local_irq_restore(flags);
}
static int __init leds_init(void)
{
if ((ks8695_leds_timer == -1) || (ks8695_leds_cpu == -1))
return -ENODEV;
leds_event = ks8695_leds_event;
leds_event(led_start);
return 0;
}
__initcall(leds_init);