From d435340f1bc5b29555790c8625c91462b624e9b3 Mon Sep 17 00:00:00 2001 From: Jan Zyczkowski Date: Tue, 2 Nov 2021 17:30:10 +0100 Subject: [PATCH] drivers: led_pwm: Decrease power consumption Changed pwm_pin_set_cycles into pwm_pin_set_nsec to decrease power consumption. Changed default value for period to 100000. There is no need in having period for pwm leds equal to 100 cycles as human eye has ~100 fps. Signed-off-by: Jan Zyczkowski --- drivers/led/led_pwm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/led/led_pwm.c b/drivers/led/led_pwm.c index d1afcd0306b..a1795aa163e 100644 --- a/drivers/led/led_pwm.c +++ b/drivers/led/led_pwm.c @@ -76,8 +76,8 @@ static int led_pwm_set_brightness(const struct device *dev, pulse = led_pwm->period * value / 100; - return pwm_pin_set_cycles(led_pwm->dev, led_pwm->channel, - led_pwm->period, pulse, led_pwm->flags); + return pwm_pin_set_nsec(led_pwm->dev, led_pwm->channel, + led_pwm->period, pulse, led_pwm->flags); } static int led_pwm_on(const struct device *dev, uint32_t led) @@ -160,7 +160,7 @@ static const struct led_driver_api led_pwm_api = { { \ .dev = DEVICE_DT_GET(DT_PWMS_CTLR(led_node_id)), \ .channel = DT_PWMS_CHANNEL(led_node_id), \ - .period = DT_PHA_OR(led_node_id, pwms, period, 100), \ + .period = DT_PHA_OR(led_node_id, pwms, period, 100000), \ .flags = DT_PHA_OR(led_node_id, pwms, flags, \ PWM_POLARITY_NORMAL), \ },