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| author | Lars-Peter Clausen <lars@metafoo.de> | 2009-11-27 06:17:38 +0100 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2009-12-17 11:42:34 +0000 |
| commit | e45906203d27296b47e56efc1219f9a200bfc2db (patch) | |
| tree | de1b55a2d708448006893a2bfc880c6d6ae9276b /drivers/leds/leds-pwm.c | |
| parent | 1998111582f5d726ca4dbf9d68935d9e7c994374 (diff) | |
| download | kernel_samsung_smdk4412-e45906203d27296b47e56efc1219f9a200bfc2db.zip kernel_samsung_smdk4412-e45906203d27296b47e56efc1219f9a200bfc2db.tar.gz kernel_samsung_smdk4412-e45906203d27296b47e56efc1219f9a200bfc2db.tar.bz2 | |
leds: leds-pwm: Set led_classdev max_brightness
Currently the driver leds-pwm doesn't set max_brightness for the led device
although it's platform data proides a maximum brightness. Instead it stores its
own private driver struct. The max_brightness defaults to 255 for led device if
it has not been set.
As a result any leds-pwm device with a different maximum brightness will show
incorrect behavior, as it is posible to either set a longer then period duty
time or not be able to switch the led to full brightness.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'drivers/leds/leds-pwm.c')
| -rw-r--r-- | drivers/leds/leds-pwm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index cdfdc87..88b1dd0 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -27,7 +27,6 @@ struct led_pwm_data { struct pwm_device *pwm; unsigned int active_low; unsigned int period; - unsigned int max_brightness; }; static void led_pwm_set(struct led_classdev *led_cdev, @@ -35,7 +34,7 @@ static void led_pwm_set(struct led_classdev *led_cdev, { struct led_pwm_data *led_dat = container_of(led_cdev, struct led_pwm_data, cdev); - unsigned int max = led_dat->max_brightness; + unsigned int max = led_dat->cdev.max_brightness; unsigned int period = led_dat->period; if (brightness == 0) { @@ -77,10 +76,10 @@ static int led_pwm_probe(struct platform_device *pdev) led_dat->cdev.name = cur_led->name; led_dat->cdev.default_trigger = cur_led->default_trigger; led_dat->active_low = cur_led->active_low; - led_dat->max_brightness = cur_led->max_brightness; led_dat->period = cur_led->pwm_period_ns; led_dat->cdev.brightness_set = led_pwm_set; led_dat->cdev.brightness = LED_OFF; + led_dat->cdev.max_brightness = cur_led->max_brightness; led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&pdev->dev, &led_dat->cdev); |