linux-kernel - Re: [PATCH v2 4/4] arm64: dts: qcom: msm8953: add MDSS

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Message-ID: <11aeba3d-5d45-e436-18b3-4d4f680d184a@linaro.org>
Date:   Fri, 17 Jun 2022 16:55:24 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Luca Weiss <luca@...tu.xyz>, linux-arm-msm@...r.kernel.org
Cc:     ~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>,
        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 v2 4/4] arm64: dts: qcom: msm8953: add MDSS

On 12/06/2022 12:22, Luca Weiss 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 from v1:
> - disable nodes by default, thanks Dmitry!
> - enable iommu for mdp
> 
>   arch/arm64/boot/dts/qcom/msm8953.dtsi | 208 ++++++++++++++++++++++++++
>   1 file changed, 208 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8953.dtsi b/arch/arm64/boot/dts/qcom/msm8953.dtsi
> index 961db3e23ee4..c7373c845f41 100644
> --- a/arch/arm64/boot/dts/qcom/msm8953.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8953.dtsi
> @@ -726,6 +726,214 @@ 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>;
> +			clock-names = "iface",
> +				      "bus",
> +				      "vsync";

I've sent the patches using "core" clock for the mdss ([1]). Please 
consider utilizing it here.

[1]: https://patchwork.freedesktop.org/series/105162/

> +
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges;
> +
> +			status = "disabled";
> +
[skipped the rest]

-- 
With best wishes
Dmitry