diff options
Diffstat (limited to 'arch/arm/mach-omap/leds.c')
-rw-r--r-- | arch/arm/mach-omap/leds.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/mach-omap/leds.c b/arch/arm/mach-omap/leds.c new file mode 100644 index 000000000000..8ab21fe98e1b --- /dev/null +++ b/arch/arm/mach-omap/leds.c @@ -0,0 +1,61 @@ +/* + * linux/arch/arm/mach-omap/leds.c + * + * OMAP LEDs dispatcher + */ +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/leds.h> +#include <asm/mach-types.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/mux.h> + +#include "leds.h" + +static int __init +omap_leds_init(void) +{ + if (machine_is_omap_innovator()) + leds_event = innovator_leds_event; + + else if (machine_is_omap_h2() || machine_is_omap_perseus2()) + leds_event = h2p2_dbg_leds_event; + + else if (machine_is_omap_osk()) + leds_event = osk_leds_event; + + else + return -1; + + if (machine_is_omap_h2() + || machine_is_omap_perseus2() + || machine_is_omap_osk()) { + + /* LED1/LED2 pins can be used as GPIO (as done here), or by + * the LPG (works even in deep sleep!), to drive a bicolor + * LED on the H2 sample board, and another on the H2/P2 + * "surfer" expansion board. + * + * The same pins drive a LED on the OSK Mistral board, but + * that's a different kind of LED (just one color at a time). + */ + omap_cfg_reg(P18_1610_GPIO3); + if (omap_request_gpio(3) == 0) + omap_set_gpio_direction(3, 0); + else + printk(KERN_WARNING "LED: can't get GPIO3/red?\n"); + + omap_cfg_reg(MPUIO4); + if (omap_request_gpio(OMAP_MPUIO(4)) == 0) + omap_set_gpio_direction(OMAP_MPUIO(4), 0); + else + printk(KERN_WARNING "LED: can't get MPUIO4/green?\n"); + } + + leds_event(led_start); + return 0; +} + +__initcall(omap_leds_init); |