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| author | David Brownell <dbrownell@users.sourceforge.net> | 2007-07-08 11:49:53 +0100 |
|---|---|---|
| committer | Richard Purdie <rpurdie@rpsys.net> | 2007-07-16 01:15:51 +0100 |
| commit | f9f451d9cac24b9bd49947d1c6971f3d689381fa (patch) | |
| tree | a6bcb371f5d9df816860083eecb06050d5e9dff8 /arch | |
| parent | e3986f6380558b84fef1e7ce7a29fed5bb090721 (diff) | |
| download | op-kernel-dev-f9f451d9cac24b9bd49947d1c6971f3d689381fa.zip op-kernel-dev-f9f451d9cac24b9bd49947d1c6971f3d689381fa.tar.gz | |
leds: leds-gpio for ngw100
Add GPIO leds to the NGW100 platform and its defconfig.
Access through /sys/class/leds/{a,b,sys}/* files; one
defaults to a heartbeat.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/avr32/boards/atngw100/setup.c | 31 | ||||
| -rw-r--r-- | arch/avr32/configs/atngw100_defconfig | 16 |
2 files changed, 46 insertions, 1 deletions
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c index 6c4dc0a..2edcecd 100644 --- a/arch/avr32/boards/atngw100/setup.c +++ b/arch/avr32/boards/atngw100/setup.c @@ -13,6 +13,7 @@ #include <linux/linkage.h> #include <linux/platform_device.h> #include <linux/types.h> +#include <linux/leds.h> #include <linux/spi/spi.h> #include <asm/io.h> @@ -21,6 +22,7 @@ #include <asm/arch/at32ap7000.h> #include <asm/arch/board.h> #include <asm/arch/init.h> +#include <asm/arch/portmux.h> /* Initialized by bootloader-specific startup code. */ struct tag *bootloader_tags __initdata; @@ -100,8 +102,31 @@ void __init setup_board(void) at32_setup_serial_console(0); } +static const struct gpio_led ngw_leds[] = { + { .name = "sys", .gpio = GPIO_PIN_PA(16), .active_low = 1, + .default_trigger = "heartbeat", + }, + { .name = "a", .gpio = GPIO_PIN_PA(19), .active_low = 1, }, + { .name = "b", .gpio = GPIO_PIN_PE(19), .active_low = 1, }, +}; + +static const struct gpio_led_platform_data ngw_led_data = { + .num_leds = ARRAY_SIZE(ngw_leds), + .leds = (void *) ngw_leds, +}; + +static struct platform_device ngw_gpio_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = (void *) &ngw_led_data, + } +}; + static int __init atngw100_init(void) { + unsigned i; + /* * ATNGW100 uses 16-bit SDRAM interface, so we don't need to * reserve any pins for it. @@ -116,6 +141,12 @@ static int __init atngw100_init(void) at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); + for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) { + at32_select_gpio(ngw_leds[i].gpio, + AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); + } + platform_device_register(&ngw_gpio_leds); + return 0; } postcore_initcall(atngw100_init); diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig index 49493ad..b799a68 100644 --- a/arch/avr32/configs/atngw100_defconfig +++ b/arch/avr32/configs/atngw100_defconfig @@ -712,7 +712,21 @@ CONFIG_SPI_ATMEL=y # # LED devices # -# CONFIG_NEW_LEDS is not set +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y + +# +# LED drivers +# +CONFIG_LEDS_GPIO=y + +# +# LED Triggers +# +CONFIG_LEDS_TRIGGERS=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y + # # LED drivers |
