From 06f4e36baf7833c2fa40af34b240e4132898689b Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Wed, 19 Jul 2017 19:54:23 +0800 Subject: rockchip: pwm: add mask for config setting Use mask to clear old setting before direct set the new config, or else there it will mess up the config when it's not the same with default value. Fixes: 3851059 rockchip: Setup default PWM flags Signed-off-by: Kever Yang Acked-by: Philipp Tomsich Reviewed-by: Philipp Tomsich --- drivers/pwm/rk_pwm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/pwm/rk_pwm.c b/drivers/pwm/rk_pwm.c index 28de62d716..2364c2dfdd 100644 --- a/drivers/pwm/rk_pwm.c +++ b/drivers/pwm/rk_pwm.c @@ -29,6 +29,7 @@ static int rk_pwm_set_invert(struct udevice *dev, uint channel, bool polarity) struct rk_pwm_priv *priv = dev_get_priv(dev); debug("%s: polarity=%u\n", __func__, polarity); + priv->enable_conf &= ~(PWM_DUTY_MASK | PWM_INACTIVE_MASK); if (polarity) priv->enable_conf |= PWM_DUTY_NEGATIVE | PWM_INACTIVE_POSTIVE; else -- cgit