diff options
| author | David Wu <david.wu@rock-chips.com> | 2018-05-04 17:30:14 +0800 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2018-05-07 14:52:01 +0800 |
| commit | 7e0f993c89113500144f8b68ed96dd160f37487e (patch) | |
| tree | c57bb335508a0be0b9decd3a7addbb580db827c3 /arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts | |
| parent | cda34cc0e4936c3767058aab725d7a511d16946c (diff) | |
dts: rockchip: Set pwm pin pull down when used for negative pwm regulator
As a second global reset, the GRF is not reset, the iomux and
pull of PWM pin is still keeping, but PWM controller is reset,
PWM pin goes into input mode. However, the pull is still none
changed in kernel, which can cause voltage problems, so should
always keep the PWM pin pull down mode, with 0~50 μA power
increase.
Change-Id: Ibbb9465f7c550d49d416bc3438c5199434df6eba
Signed-off-by: David Wu <david.wu@rock-chips.com>
Diffstat (limited to 'arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts')
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts b/arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts index 510ebdf9e670..f65123d3b86d 100644 --- a/arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3368-r88-dcdc.dts @@ -242,6 +242,8 @@ &pwm1 { status = "okay"; + pinctrl-names = "active"; + pinctrl-0 = <&pwm1_pin_pull_down>; }; &i2c0 { |