diff options
| author | Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> | 2012-04-18 23:16:40 +0200 |
|---|---|---|
| committer | Jason Cooper <jason@lakedaemon.net> | 2012-05-15 03:12:14 +0000 |
| commit | ff3e660b5a881b401b2b6735aa5334f433237dcb (patch) | |
| tree | 275ddcb9365d4cc6ac7320b18a29b5d57fe2ada4 /arch/arm/plat-orion | |
| parent | 92a486eabefadca1169fbf15d737feeaf2bda844 (diff) | |
| download | op-kernel-dev-ff3e660b5a881b401b2b6735aa5334f433237dcb.zip op-kernel-dev-ff3e660b5a881b401b2b6735aa5334f433237dcb.tar.gz | |
orion/kirkwood: create a generic function for gpio led blinking
dns323 and (at least) iconnect platforms are using hw led blinking, so,
instead of having 2 identicals .gpio_blink_set gpio-led hooks, move
dns323 code into gpio.c
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-By: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/plat-orion')
| -rw-r--r-- | arch/arm/plat-orion/gpio.c | 23 | ||||
| -rw-r--r-- | arch/arm/plat-orion/include/plat/gpio.h | 2 |
2 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c index d3401e7..af95af2 100644 --- a/arch/arm/plat-orion/gpio.c +++ b/arch/arm/plat-orion/gpio.c @@ -16,6 +16,7 @@ #include <linux/bitops.h> #include <linux/io.h> #include <linux/gpio.h> +#include <linux/leds.h> /* * GPIO unit register offsets. @@ -295,6 +296,28 @@ void orion_gpio_set_blink(unsigned pin, int blink) } EXPORT_SYMBOL(orion_gpio_set_blink); +#define ORION_BLINK_HALF_PERIOD 100 /* ms */ + +int orion_gpio_led_blink_set(unsigned gpio, int state, + unsigned long *delay_on, unsigned long *delay_off) +{ + + if (delay_on && delay_off && !*delay_on && !*delay_off) + *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD; + + switch (state) { + case GPIO_LED_NO_BLINK_LOW: + case GPIO_LED_NO_BLINK_HIGH: + orion_gpio_set_blink(gpio, 0); + gpio_set_value(gpio, state); + break; + case GPIO_LED_BLINK: + orion_gpio_set_blink(gpio, 1); + } + return 0; +} +EXPORT_SYMBOL_GPL(orion_gpio_led_blink_set); + /***************************************************************************** * Orion GPIO IRQ diff --git a/arch/arm/plat-orion/include/plat/gpio.h b/arch/arm/plat-orion/include/plat/gpio.h index 3abf304..bec0c98 100644 --- a/arch/arm/plat-orion/include/plat/gpio.h +++ b/arch/arm/plat-orion/include/plat/gpio.h @@ -19,6 +19,8 @@ */ void orion_gpio_set_unused(unsigned pin); void orion_gpio_set_blink(unsigned pin, int blink); +int orion_gpio_led_blink_set(unsigned gpio, int state, + unsigned long *delay_on, unsigned long *delay_off); #define GPIO_INPUT_OK (1 << 0) #define GPIO_OUTPUT_OK (1 << 1) |
