diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/mach-omap1/leds.c | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'arch/arm/mach-omap1/leds.c')
-rw-r--r-- | arch/arm/mach-omap1/leds.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/leds.c b/arch/arm/mach-omap1/leds.c new file mode 100644 index 00000000000..22eb11dde9e --- /dev/null +++ b/arch/arm/mach-omap1/leds.c | |||
@@ -0,0 +1,69 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-omap1/leds.c | ||
3 | * | ||
4 | * OMAP LEDs dispatcher | ||
5 | */ | ||
6 | #include <linux/kernel.h> | ||
7 | #include <linux/init.h> | ||
8 | |||
9 | #include <asm/leds.h> | ||
10 | #include <asm/mach-types.h> | ||
11 | |||
12 | #include <mach/gpio.h> | ||
13 | #include <plat/mux.h> | ||
14 | |||
15 | #include "leds.h" | ||
16 | |||
17 | static int __init | ||
18 | omap_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); | ||