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drivers: led_pwm: Decrease power consumption

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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 <jan.zyczkowski@nordicsemi.no>
This commit is contained in:
Jan Zyczkowski 2021-11-02 17:30:10 +01:00 • committed by Anas Nashif
commit d435340f1b
1 changed files with 3 additions and 3 deletions
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4
drivers/led/led_pwm.c
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@ -76,7 +76,7 @@ static int led_pwm_set_brightness(const struct device *dev,
pulse = led_pwm->period * value / 100; pulse = led_pwm->period * value / 100;
return pwm_pin_set_cycles(led_pwm->dev, led_pwm->channel, return pwm_pin_set_nsec(led_pwm->dev, led_pwm->channel,
led_pwm->period, pulse, led_pwm->flags); led_pwm->period, pulse, led_pwm->flags);
} }
@ -160,7 +160,7 @@ static const struct led_driver_api led_pwm_api = {
{ \ { \
.dev = DEVICE_DT_GET(DT_PWMS_CTLR(led_node_id)), \ .dev = DEVICE_DT_GET(DT_PWMS_CTLR(led_node_id)), \
.channel = DT_PWMS_CHANNEL(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, \ .flags = DT_PHA_OR(led_node_id, pwms, flags, \
PWM_POLARITY_NORMAL), \ PWM_POLARITY_NORMAL), \
}, },