1/*
 2 * linux/arch/arm/mach-omap1/leds.c
 3 *
 4 * OMAP LEDs dispatcher
 5 */
 6#include <linux/gpio.h>
 7#include <linux/kernel.h>
 8#include <linux/init.h>
 9
10#include <asm/leds.h>
11#include <asm/mach-types.h>
12
13#include <plat/mux.h>
14
15#include "leds.h"
16
17static int __init
18omap_leds_init(void)
19{
20	if (!cpu_class_is_omap1())
21		return -ENODEV;
22
23	if (machine_is_omap_innovator())
24		leds_event = innovator_leds_event;
25
26	else if (machine_is_omap_h2()
27			|| machine_is_omap_h3()
28			|| machine_is_omap_perseus2())
29		leds_event = h2p2_dbg_leds_event;
30
31	else if (machine_is_omap_osk())
32		leds_event = osk_leds_event;
33
34	else
35		return -1;
36
37	if (machine_is_omap_h2()
38			|| machine_is_omap_h3()
39#ifdef	CONFIG_OMAP_OSK_MISTRAL
40			|| machine_is_omap_osk()
41#endif
42			) {
43
44		/* LED1/LED2 pins can be used as GPIO (as done here), or by
45		 * the LPG (works even in deep sleep!), to drive a bicolor
46		 * LED on the H2 sample board, and another on the H2/P2
47		 * "surfer" expansion board.
48		 *
49		 * The same pins drive a LED on the OSK Mistral board, but
50		 * that's a different kind of LED (just one color at a time).
51		 */
52		omap_cfg_reg(P18_1610_GPIO3);
53		if (gpio_request(3, "LED red") == 0)
54			gpio_direction_output(3, 1);
55		else
56			printk(KERN_WARNING "LED: can't get GPIO3/red?\n");
57
58		omap_cfg_reg(MPUIO4);
59		if (gpio_request(OMAP_MPUIO(4), "LED green") == 0)
60			gpio_direction_output(OMAP_MPUIO(4), 1);
61		else
62			printk(KERN_WARNING "LED: can't get MPUIO4/green?\n");
63	}
64
65	leds_event(led_start);
66	return 0;
67}
68
69__initcall(omap_leds_init);