diff options
| author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
|---|---|---|
| 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); | ||
