Since there is no devfreq used for vdd_log, so the vdd_log(pwm regulator) will be 'enable' with the dts node at a default PWM state with high or low output. Both too high or too low for vdd_log is not good for the board, add init voltage for driver to make the regulator get into a know output. Note that this will be used by U-Boot for init voltage output, and this is very important for it may get system hang somewhere during system boot up with regulator enable and without this init value. CC: Elaine Zhang <zhangqing@xxxxxxxxxxxxxx> CC: Peter Robinson <pbrobinson@xxxxxxxxx> Signed-off-by: Kever Yang <kever.yang@xxxxxxxxxxxxxx> --- arch/arm64/boot/dts/rockchip/rk3399-evb.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-hugsun-x99.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi | 1 + arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi | 1 + 9 files changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb.dts b/arch/arm64/boot/dts/rockchip/rk3399-evb.dts index 77008dca45bc..fa241aeb11b0 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-evb.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-evb.dts @@ -65,6 +65,7 @@ regulator-name = "vdd_center"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; regulator-always-on; regulator-boot-on; status = "okay"; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts index 92de83dd4dbc..4e45269fcdff 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts @@ -208,6 +208,7 @@ regulator-boot-on; regulator-min-microvolt = <430000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; vin-supply = <&vcc_sys>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-hugsun-x99.dts b/arch/arm64/boot/dts/rockchip/rk3399-hugsun-x99.dts index c133e8d64b2a..692f3154edc3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-hugsun-x99.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-hugsun-x99.dts @@ -100,6 +100,7 @@ regulator-name = "vdd_log"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; regulator-always-on; regulator-boot-on; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi index 4944d78a0a1c..c2ac80d99301 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi @@ -79,6 +79,7 @@ regulator-boot-on; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; vin-supply = <&vsys_3v3>; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts b/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts index 73be38a53796..c32abcc4ddc1 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts @@ -101,6 +101,7 @@ regulator-boot-on; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; vin-supply = <&vcc5v0_sys>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts b/arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts index 0541dfce924d..9d674c51f025 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts @@ -164,6 +164,7 @@ regulator-boot-on; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; vin-supply = <&vcc_sys>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts index 19f7732d728c..7d856ce1d156 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts @@ -129,6 +129,7 @@ regulator-boot-on; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; vin-supply = <&vcc3v3_sys>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts index e544deb61d28..8fbccbc8bf47 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts @@ -174,6 +174,7 @@ regulator-boot-on; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1700000>; + regulator-init-microvolt = <950000>; vin-supply = <&vcc5v0_sys>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi index 1bc1579674e5..f8e2cb8c0624 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi @@ -133,6 +133,7 @@ regulator-boot-on; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + regulator-init-microvolt = <950000>; vin-supply = <&vcc_sys>; }; }; -- 2.17.1
