Messages in this thread Patch in this message | | | From | Alexandre Belloni <> | Subject | [PATCH] leds: pwm: set polarity on non DT platforms | Date | Mon, 17 Mar 2014 19:38:41 +0100 |
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Set inversed polarity when .active_low is set in the platform_data. With device tree, this is taken care of by of_pwm_xlate_with_flags(), called from of_pwm_get().
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> --- drivers/leds/leds-pwm.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 605047428b5a..09681556a6aa 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -180,6 +180,11 @@ static int led_pwm_probe(struct platform_device *pdev) led_dat->cdev.max_brightness = cur_led->max_brightness; led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; + if (led_dat->active_low) + if (pwm_set_polarity(led_dat->pwm, + PWM_POLARITY_INVERSED)) + dev_err(&pdev->dev, "impossible to change polarity"); + led_dat->can_sleep = pwm_can_sleep(led_dat->pwm); if (led_dat->can_sleep) INIT_WORK(&led_dat->work, led_pwm_work); -- 1.8.3.2
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