Re: [PATCH 1/3] arm64: dts: qcom: c630: add panel bridge 1p2 regulator

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On 27.06.2023 17:32, Caleb Connolly wrote:
> The VCC and VCCA supplies of the DSI<->eDP bridge are derived from
> vreg_l2a_1p2 and controlled by a GPIO on the PMIC. Add the regulator
> here so Linux can control it.
> 
> Signed-off-by: Caleb Connolly <caleb.connolly@xxxxxxxxxx>
> ---
>  .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts      | 30 ++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
> index 22a7d997cdb0..94e37e5d2177 100644
> --- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
> @@ -80,6 +80,22 @@ adsp_mem: memory@8c600000 {
>  		};
>  	};
>  
> +	sw_edp_1p2: edp-1p2-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "sw_edp_1p2";
> +
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&sw_edp_1p2_en>;
property
property-names

> +
> +		gpio = <&pm8998_gpios 9 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		vin-supply = <&vreg_l2a_1p2>;
> +	};
> +
>  	sn65dsi86_refclk: sn65dsi86-refclk {
>  		compatible = "fixed-clock";
>  		#clock-cells = <0>;
> @@ -425,6 +441,8 @@ sn65dsi86: bridge@2c {
>  
>  		enable-gpios = <&tlmm 96 GPIO_ACTIVE_HIGH>;
>  
> +		vcca-supply = <&sw_edp_1p2>;
> +		vcc-supply = <&sw_edp_1p2>;
>  		vpll-supply = <&vreg_l14a_1p88>;
>  		vccio-supply = <&vreg_l14a_1p88>;
>  
> @@ -500,6 +518,18 @@ &mss_pil {
>  	firmware-name = "qcom/sdm850/LENOVO/81JL/qcdsp1v2850.mbn", "qcom/sdm850/LENOVO/81JL/qcdsp2850.mbn";
>  };
>  
> +&pm8998_gpios {
> +	/* This pin is pulled down by a fixed resistor */
> +	sw_edp_1p2_en: pm8998-gpio9-state {
> +		pinconf {
drop pinconf{}, it's unnecessary

Konrad
> +			pins = "gpio9";
> +			function = "normal";
> +			bias-disable;
> +			qcom,drive-strength = <0>;
> +		};
> +	};
> +};
> +
>  &qup_i2c10_default {
>  	drive-strength = <2>;
>  	bias-disable;
> 



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