linux-kernel - Re: [PATCH 3/3] arm64: dts: msm8998-mtp: Add pm8005

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Date:   Tue, 21 May 2019 11:16:52 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Cc:     agross@...nel.org, david.brown@...aro.org, jcrouse@...eaurora.org,
        lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
        mark.rutland@....com, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: msm8998-mtp: Add pm8005_s1 regulator

On Tue 21 May 09:53 PDT 2019, Jeffrey Hugo wrote:

> The pm8005_s1 is VDD_GFX, and needs to be on to enable the GPU.
> This should be hooked up to the GPU CPR, but we don't have support for that
> yet, so until then, just turn on the regulator and keep it on so that we
> can focus on basic GPU bringup.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

> Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
> ---
>  arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi b/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
> index f09f3e03f708..108667ce4f31 100644
> --- a/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
> @@ -27,6 +27,23 @@
>  	status = "okay";
>  };
>  
> +&pm8005_lsid1 {
> +	pm8005-regulators {
> +		compatible = "qcom,pm8005-regulators";
> +
> +		vdd_s1-supply = <&vph_pwr>;
> +
> +		pm8005_s1: s1 { /* VDD_GFX supply */
> +			regulator-min-microvolt = <524000>;
> +			regulator-max-microvolt = <1100000>;
> +			regulator-enable-ramp-delay = <500>;
> +
> +			/* hack until we rig up the gpu consumer */
> +			regulator-always-on;
> +		};
> +	};
> +};
> +
>  &qusb2phy {
>  	status = "okay";
>  
> -- 
> 2.17.1
>