linux-kernel - Re: [PATCH 6/7] arm64: dts: qcom: sa8775p: add the GPU clock controller node

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Date:   Wed, 29 Mar 2023 13:31:58 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 6/7] arm64: dts: qcom: sa8775p: add the GPU clock
 controller node



On 28.03.2023 21:36, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Add the GPUCC node for sa8775p platforms.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 9ab630c7d81b..4c45ad1cc7ff 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -591,6 +591,18 @@ tcsr_mutex: hwlock@...0000 {
>  			#hwlock-cells = <1>;
>  		};
>  
> +		gpucc: clock-controller@...0000 {
> +			compatible = "qcom,sa8775p-gpucc";
> +			reg = <0x0 0x03d90000 0x0 0xa000>;
> +			clocks = <&gcc GCC_GPU_CFG_AHB_CLK>,
> +				 <&rpmhcc RPMH_CXO_CLK>,
> +				 <&gcc GCC_GPU_GPLL0_CLK_SRC>,
> +				 <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
Without the first clock, as pointed out in the clk review:

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

(that also makes it compatible with the generic gpucc bindings!)

Konrad
> +			#clock-cells = <1>;
> +			#reset-cells = <1>;
> +			#power-domain-cells = <1>;
> +		};
> +
>  		pdc: interrupt-controller@...0000 {
>  			compatible = "qcom,sa8775p-pdc", "qcom,pdc";
>  			reg = <0x0 0x0b220000 0x0 0x30000>,