diff options
| author | Michael Loeffler <zvpunry@zvpunry.de> | 2008-01-13 23:20:52 +0000 |
|---|---|---|
| committer | Richard Purdie <rpurdie@rpsys.net> | 2008-02-07 09:52:03 +0000 |
| commit | f5506a2f71ad75d680c81090117ff2f89602f9b9 (patch) | |
| tree | ccdd80a2afeba70af9bb831c5d591ec3c0ca155c /drivers/leds/leds-wrap.c | |
| parent | 2b7f1b8c8f4a8991dfeefc31844e15c642b6de2a (diff) | |
| download | lwn-f5506a2f71ad75d680c81090117ff2f89602f9b9.tar.gz lwn-f5506a2f71ad75d680c81090117ff2f89602f9b9.zip | |
leds: Add power LED to the wrap driver
The 3rd LED on this board is something like a power-led, it is on all the
time. With this change to the leds-wrap driver it is possible to use this
LED too.
Signed-off-by: Michael Loeffler <zvpunry@zvpunry.de>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'drivers/leds/leds-wrap.c')
| -rw-r--r-- | drivers/leds/leds-wrap.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/drivers/leds/leds-wrap.c b/drivers/leds/leds-wrap.c index 5770cc36ec20..7ac61a7b56ad 100644 --- a/drivers/leds/leds-wrap.c +++ b/drivers/leds/leds-wrap.c @@ -19,11 +19,21 @@ #include <linux/scx200_gpio.h> #define DRVNAME "wrap-led" +#define WRAP_POWER_LED_GPIO 2 #define WRAP_ERROR_LED_GPIO 3 -#define WRAP_EXTRA_LED_GPIO 18 +#define WRAP_EXTRA_LED_GPIO 18 static struct platform_device *pdev; +static void wrap_power_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + scx200_gpio_set_low(WRAP_POWER_LED_GPIO); + else + scx200_gpio_set_high(WRAP_POWER_LED_GPIO); +} + static void wrap_error_led_set(struct led_classdev *led_cdev, enum led_brightness value) { @@ -42,6 +52,11 @@ static void wrap_extra_led_set(struct led_classdev *led_cdev, scx200_gpio_set_high(WRAP_EXTRA_LED_GPIO); } +static struct led_classdev wrap_power_led = { + .name = "wrap::power", + .brightness_set = wrap_power_led_set, +}; + static struct led_classdev wrap_error_led = { .name = "wrap::error", .brightness_set = wrap_error_led_set, @@ -56,6 +71,7 @@ static struct led_classdev wrap_extra_led = { static int wrap_led_suspend(struct platform_device *dev, pm_message_t state) { + led_classdev_suspend(&wrap_power_led); led_classdev_suspend(&wrap_error_led); led_classdev_suspend(&wrap_extra_led); return 0; @@ -63,6 +79,7 @@ static int wrap_led_suspend(struct platform_device *dev, static int wrap_led_resume(struct platform_device *dev) { + led_classdev_resume(&wrap_power_led); led_classdev_resume(&wrap_error_led); led_classdev_resume(&wrap_extra_led); return 0; @@ -76,17 +93,31 @@ static int wrap_led_probe(struct platform_device *pdev) { int ret; + ret = led_classdev_register(&pdev->dev, &wrap_power_led); + if (ret < 0) + return ret; + ret = led_classdev_register(&pdev->dev, &wrap_error_led); - if (ret == 0) { - ret = led_classdev_register(&pdev->dev, &wrap_extra_led); - if (ret < 0) - led_classdev_unregister(&wrap_error_led); - } + if (ret < 0) + goto err1; + + ret = led_classdev_register(&pdev->dev, &wrap_extra_led); + if (ret < 0) + goto err2; + + return ret; + +err2: + led_classdev_unregister(&wrap_error_led); +err1: + led_classdev_unregister(&wrap_power_led); + return ret; } static int wrap_led_remove(struct platform_device *pdev) { + led_classdev_unregister(&wrap_power_led); led_classdev_unregister(&wrap_error_led); led_classdev_unregister(&wrap_extra_led); return 0; |