Re: [PATCH 6/8] arm64: dts: qcom: sa8295p-adp: add max20411

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On 21.12.2023 04:50, Bjorn Andersson wrote:
> From: Bjorn Andersson <andersson@xxxxxxxxxx>
> 
> The SA8295P ADP has a MAX20411 LDO regulator on I2C 12, supplying the
> VDD_GFX pads. Enable the bus and add the maxim,max20411 device on the
> bus.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 40 ++++++++++++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> index fd253942e5e5..e16406c9c19d 100644
> --- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> @@ -266,6 +266,26 @@ &dispcc1 {
>  	status = "okay";
>  };
>  
> +&i2c12 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&qup1_i2c4_state>;
property-n
property-names

(same below)
> +
> +	status = "okay";
> +
> +	vdd_gfx: regulator@39 {
> +		compatible = "maxim,max20411";
> +		reg = <0x39>;
> +
> +		regulator-min-microvolt = <800000>;
> +		regulator-max-microvolt = <968750>;
Is this ever going to be scaled? I suppose you could add some OPP code to
drm/msm and use opp-microvolts.. Or lock this down at min=max

Konrad




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