linux-kernel - Re: [PATCH v3 3/3] arm64: dts: qcom: msm8953: add MDSS

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Date:   Tue, 6 Sep 2022 22:41:11 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Luca Weiss <luca@...tu.xyz>
Cc:     linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Vladimir Lypak <vladimir.lypak@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] arm64: dts: qcom: msm8953: add MDSS

On Tue, 6 Sept 2022 at 21:36, Luca Weiss <luca@...tu.xyz> wrote:
>
> From: Vladimir Lypak <vladimir.lypak@...il.com>
>
> Add the MDSS, MDP and DSI nodes that are found on msm8953 SoC.
>
> Signed-off-by: Vladimir Lypak <vladimir.lypak@...il.com>
> Signed-off-by: Luca Weiss <luca@...tu.xyz>
> ---
> Changes since v2:
> - add "core" clock for mdss as suggested by Dmitry Baryshkov
>
>  arch/arm64/boot/dts/qcom/msm8953.dtsi | 210 ++++++++++++++++++++++++++
>  1 file changed, 210 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8953.dtsi b/arch/arm64/boot/dts/qcom/msm8953.dtsi
> index 3d11331e78d2..580333141a66 100644
> --- a/arch/arm64/boot/dts/qcom/msm8953.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8953.dtsi
> @@ -726,6 +726,216 @@ tcsr_phy_clk_scheme_sel: syscon@...f044 {
>                         reg = <0x193f044 0x4>;
>                 };
>
> +               mdss: mdss@...0000 {
> +                       compatible = "qcom,mdss";
> +
> +                       reg = <0x1a00000 0x1000>,
> +                             <0x1ab0000 0x1040>;
> +                       reg-names = "mdss_phys",
> +                                   "vbif_phys";
> +
> +                       power-domains = <&gcc MDSS_GDSC>;
> +                       interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
> +
> +                       interrupt-controller;
> +                       #interrupt-cells = <1>;
> +
> +                       clocks = <&gcc GCC_MDSS_AHB_CLK>,
> +                                <&gcc GCC_MDSS_AXI_CLK>,
> +                                <&gcc GCC_MDSS_VSYNC_CLK>,
> +                                <&gcc GCC_MDSS_MDP_CLK>;
> +                       clock-names = "iface",
> +                                     "bus",
> +                                     "vsync",
> +                                     "core";
> +
> +                       #address-cells = <1>;
> +                       #size-cells = <1>;
> +                       ranges;
> +
> +                       status = "disabled";
> +
> +                       mdp: mdp@...1000 {
> +                               compatible = "qcom,mdp5";

Could you please change this to "qcom,msm8953-mdp5", "qcom,mdp5".

> +                               reg = <0x1a01000 0x89000>;
> +                               reg-names = "mdp_phys";
> +

[skipped]

> +
> +                       dsi0_phy: dsi-phy@...4400 {

Let's probably use a generic name 'phy' here and for dsi1_phy.

The rest looks good to me.

> +                               compatible = "qcom,dsi-phy-14nm-8953";
> +                               reg = <0x1a94400 0x100>,
> +                                     <0x1a94500 0x300>,
> +                                     <0x1a94800 0x188>;
> +                               reg-names = "dsi_phy",
> +                                           "dsi_phy_lane",
> +                                           "dsi_pll";
> +
> +                               #clock-cells = <1>;
> +                               #phy-cells = <0>;
> +
> +                               clocks = <&gcc GCC_MDSS_AHB_CLK>, <&xo_board>;
> +                               clock-names = "iface", "ref";
> +
> +                               status = "disabled";
> +                       };


-- 
With best wishes
Dmitry