diff options
| author |   Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2014-05-19 22:42:41 +0200 |
|---|---|---|
| committer |   Thierry Reding <thierry.reding@gmail.com> | 2014-05-21 11:19:45 +0200 |
| commit | 81225bed32739752df61b5821bbf3f9be70e434d (patch) | |
| tree | 77683ae1cde1fd6c7508290f7683017c74f6440d /drivers/leds/leds-pwm.c | |
| parent | ARM: pxa: hx4700: use PWM_LOOKUP to initialize struct pwm_lookup (diff) | |
| download | linux-dev-81225bed32739752df61b5821bbf3f9be70e434d.tar.xz linux-dev-81225bed32739752df61b5821bbf3f9be70e434d.zip | |
leds: leds-pwm: retrieve configured PWM period
The PWM core is now able to initialize the PWM period from a lookup
table defined by board files. Use it if available and fallback to the
value supplied in pwm_period_ns.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/leds/leds-pwm.c')
| -rw-r--r-- | drivers/leds/leds-pwm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 7d0aaed1e23a..aa770ec1e892 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -181,7 +181,6 @@ 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->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; @@ -191,6 +190,10 @@ static int led_pwm_probe(struct platform_device *pdev) if (led_dat->can_sleep) INIT_WORK(&led_dat->work, led_pwm_work); + led_dat->period = pwm_get_period(led_dat->pwm); + if (!led_dat->period && (cur_led->pwm_period_ns > 0)) + led_dat->period = cur_led->pwm_period_ns; + ret = led_classdev_register(&pdev->dev, &led_dat->cdev); if (ret < 0) goto err; |