linux-kernel - Re: [PATCH v3 12/12] arm64: dts: qcom: sa8295-adp: Enable DP instances

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Message-ID: <Y1ke9xp8m5zWg+Mu@hovoldconsulting.com>
Date:   Wed, 26 Oct 2022 13:50:15 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Bjorn Andersson <quic_bjorande@...cinc.com>
Cc:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Sankeerth Billakanti <quic_sbillaka@...cinc.com>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 12/12] arm64: dts: qcom: sa8295-adp: Enable DP
 instances

On Tue, Oct 25, 2022 at 08:26:24PM -0700, Bjorn Andersson wrote:
> From: Bjorn Andersson <bjorn.andersson@...aro.org>
> 
> The SA8295P ADP has, among other interfaces, six MiniDP connectors which
> are connected to MDSS0 DP2 and DP3, and MDSS1 DP0 through DP3.
> 
> Enable Display Clock controllers, MDSS instanced, MDPs, DP controllers,
> DP PHYs and link them all together.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> ---

>  &apps_rsc {
> @@ -156,13 +240,169 @@ vreg_l7g: ldo7 {
>  
>  		vreg_l8g: ldo8 {
>  			regulator-name = "vreg_l8g";
> -			regulator-min-microvolt = <880000>;
> -			regulator-max-microvolt = <880000>;
> +			regulator-min-microvolt = <912000>;
> +			regulator-max-microvolt = <912000>;
> +			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +			regulator-allow-set-load;

Did you really intend to allow set-load here?

I'm guessing this wasn't the case, but otherwise you also need to
specify the valid modes.

> +		};
> +
> +		vreg_l11g: ldo11 {
> +			regulator-name = "vreg_l11g";
> +			regulator-min-microvolt = <912000>;
> +			regulator-max-microvolt = <912000>;
>  			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
>  		};
>  	};
>  };

> +&mdss0_dp2_phy {
> +	status = "okay";
> +
> +	vdda-phy-supply = <&vreg_l8g>;
> +	vdda-pll-supply = <&vreg_l3g>;
> +};

Johan