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-rw-r--r--arch/arm/mach-at91/leds.c68
1 files changed, 67 insertions, 1 deletions
diff --git a/arch/arm/mach-at91/leds.c b/arch/arm/mach-at91/leds.c
index 0d5144973988..9cdcda500fe8 100644
--- a/arch/arm/mach-at91/leds.c
+++ b/arch/arm/mach-at91/leds.c
@@ -14,11 +14,62 @@
14#include <linux/init.h> 14#include <linux/init.h>
15 15
16#include <asm/mach-types.h> 16#include <asm/mach-types.h>
17#include <asm/leds.h>
18#include <asm/arch/board.h> 17#include <asm/arch/board.h>
19#include <asm/arch/gpio.h> 18#include <asm/arch/gpio.h>
20 19
21 20
21/* ------------------------------------------------------------------------- */
22
23#if defined(CONFIG_NEW_LEDS)
24
25#include <linux/platform_device.h>
26
27/*
28 * New cross-platform LED support.
29 */
30
31static struct gpio_led_platform_data led_data;
32
33static struct platform_device at91_leds = {
34 .name = "leds-gpio",
35 .id = -1,
36 .dev.platform_data = &led_data,
37};
38
39void __init at91_gpio_leds(struct gpio_led *leds, int nr)
40{
41 int i;
42
43 if (!nr)
44 return;
45
46 for (i = 0; i < nr; i++)
47 at91_set_gpio_output(leds[i].gpio, leds[i].active_low);
48
49 led_data.leds = leds;
50 led_data.num_leds = nr;
51 platform_device_register(&at91_leds);
52}
53
54#else
55void __init at91_gpio_leds(struct gpio_led *leds, int nr) {}
56#endif
57
58
59/* ------------------------------------------------------------------------- */
60
61#if defined(CONFIG_LEDS)
62
63#include <asm/leds.h>
64
65/*
66 * Old ARM-specific LED framework; not fully functional when generic time is
67 * in use.
68 */
69
70static u8 at91_leds_cpu;
71static u8 at91_leds_timer;
72
22static inline void at91_led_on(unsigned int led) 73static inline void at91_led_on(unsigned int led)
23{ 74{
24 at91_set_gpio_value(led, 0); 75 at91_set_gpio_value(led, 0);
@@ -93,3 +144,18 @@ static int __init leds_init(void)
93} 144}
94 145
95__initcall(leds_init); 146__initcall(leds_init);
147
148
149void __init at91_init_leds(u8 cpu_led, u8 timer_led)
150{
151 /* Enable GPIO to access the LEDs */
152 at91_set_gpio_output(cpu_led, 1);
153 at91_set_gpio_output(timer_led, 1);
154
155 at91_leds_cpu = cpu_led;
156 at91_leds_timer = timer_led;
157}
158
159#else
160void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
161#endif