shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

ARM: dts: rockchip: Set pwm pin default pull setting when used for pwm regulator

Browse Source 
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: I9f46feca00bdb6e8cad4794342d2936d62206164
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
David Wu
2019-10-31 15:19:35 +08:00
committed by Tao Huang
parent 99c28b5be0
commit 1e47858fa9
4 changed files with 39 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/boot/dts/rk3229-evb.dts
View File

@@ -318,10 +318,14 @@
&pwm1 {
status = "okay";
pinctrl-names = "active";
pinctrl-0 = <&pwm1_pin_pull_down>;
};
&pwm2 {
status = "okay";
pinctrl-names = "active";
pinctrl-0 = <&pwm2_pin_pull_down>;
};
&tsadc {

16
arch/arm/boot/dts/rk322x.dtsi
View File

@@ -1528,24 +1528,40 @@
pwm0_pin: pwm0-pin {
rockchip,pins = <3 21 RK_FUNC_1 &pcfg_pull_none>;
};
pwm0_pin_pull_down: pwm0-pin-pull-down {
rockchip,pins = <3 21 RK_FUNC_1 &pcfg_pull_down>;
};
};
pwm1 {
pwm1_pin: pwm1-pin {
rockchip,pins = <0 30 RK_FUNC_2 &pcfg_pull_none>;
};
pwm1_pin_pull_down: pwm1-pin-pull-down {
rockchip,pins = <0 30 RK_FUNC_2 &pcfg_pull_down>;
};
};
pwm2 {
pwm2_pin: pwm2-pin {
rockchip,pins = <1 12 RK_FUNC_2 &pcfg_pull_none>;
};
pwm2_pin_pull_down: pwm2-pin-pull-down {
rockchip,pins = <1 12 RK_FUNC_2 &pcfg_pull_down>;
};
};
pwm3 {
pwm3_pin: pwm3-pin {
rockchip,pins = <1 11 RK_FUNC_2 &pcfg_pull_none>;
};
pwm3_pin_pull_down: pwm3-pin-pull-down {
rockchip,pins = <1 11 RK_FUNC_2 &pcfg_pull_down>;
};
};
spdif {

2
arch/arm/boot/dts/rk3288-evb-rk808-linux.dts
View File

@@ -575,6 +575,8 @@
};
&pwm1 {
pinctrl-names = "active";
pinctrl-0 = <&pwm1_pin_pull_down>;
status = "okay";
};

17
arch/arm/boot/dts/rk3288.dtsi
View File

@@ -1917,24 +1917,41 @@
pwm0_pin: pwm0-pin {
rockchip,pins = <7 0 RK_FUNC_1 &pcfg_pull_none>;
};
pwm0_pin_pull_down: pwm0-pin-pull-down {
rockchip,pins = <7 0 RK_FUNC_1 &pcfg_pull_down>;
};
};
pwm1 {
pwm1_pin: pwm1-pin {
rockchip,pins = <7 1 RK_FUNC_1 &pcfg_pull_none>;
};
pwm1_pin_pull_down: pwm1-pin-pull-down {
rockchip,pins = <7 1 RK_FUNC_1 &pcfg_pull_down>;
};
};
pwm2 {
pwm2_pin: pwm2-pin {
rockchip,pins = <7 22 3 &pcfg_pull_none>;
};
pwm2_pin_pull_down: pwm2-pin-pull-down {
rockchip,pins = <7 22 3 &pcfg_pull_down>;
};
};
pwm3 {
pwm3_pin: pwm3-pin {
rockchip,pins = <7 23 3 &pcfg_pull_none>;
};
pwm3_pin_pull_down: pwm3-pin-pull-down {
rockchip,pins = <7 23 3 &pcfg_pull_down>;
};
};
gmac {