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| author | Kever Yang <kever.yang@rock-chips.com> | 2017-07-19 19:54:23 +0800 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-07-27 14:59:01 +0200 |
| commit | 06f4e36baf7833c2fa40af34b240e4132898689b (patch) | |
| tree | 7744769b661b85832623ac794c093f4ea39f2ae1 /drivers/pwm/rk_pwm.c | |
| parent | 3030c951f19bf69fd12fe700d33c4be3ad2ee734 (diff) | |
| download | u-boot-06f4e36baf7833c2fa40af34b240e4132898689b.tar.gz u-boot-06f4e36baf7833c2fa40af34b240e4132898689b.tar.xz u-boot-06f4e36baf7833c2fa40af34b240e4132898689b.zip | |
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 <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Diffstat (limited to 'drivers/pwm/rk_pwm.c')
| -rw-r--r-- | drivers/pwm/rk_pwm.c | 1 |
1 files changed, 1 insertions, 0 deletions
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 |