From: Kever Yang Date: Wed, 19 Jul 2017 11:54:23 +0000 (+0800) Subject: rockchip: pwm: add mask for config setting X-Git-Tag: v2017.09-rc1~82 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=06f4e36baf7833c2fa40af34b240e4132898689b;p=u-boot 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 --- diff --git a/arch/arm/include/asm/arch-rockchip/pwm.h b/arch/arm/include/asm/arch-rockchip/pwm.h index 08ff94591c..b1d8047691 100644 --- a/arch/arm/include/asm/arch-rockchip/pwm.h +++ b/arch/arm/include/asm/arch-rockchip/pwm.h @@ -25,9 +25,11 @@ check_member(rk3288_pwm, ctrl, 0xc); #define PWM_DUTY_POSTIVE (1 << 3) #define PWM_DUTY_NEGATIVE (0 << 3) +#define PWM_DUTY_MASK (1 << 3) #define PWM_INACTIVE_POSTIVE (1 << 4) #define PWM_INACTIVE_NEGATIVE (0 << 4) +#define PWM_INACTIVE_MASK (1 << 4) #define PWM_OUTPUT_LEFT (0 << 5) #define PWM_OUTPUT_CENTER (1 << 5) 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