linux-kernel - Re: [PATCH 6/6] arm64: dts: qcom: x1e80100: Add videocc

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Message-ID: <548ce30c-941e-4ddd-9391-2bb5609e26a3@oss.qualcomm.com>
Date: Tue, 8 Jul 2025 19:01:24 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Stephan Gerhold <stephan.gerhold@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc: Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Abel Vesa <abel.vesa@...aro.org>, Johan Hovold <johan@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] arm64: dts: qcom: x1e80100: Add videocc

On 7/1/25 7:28 PM, Stephan Gerhold wrote:
> Add the video clock controller for X1E80100, similar to sm8550.dtsi. It
> provides the needed clocks/power domains for the iris video codec.
> 
> Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100.dtsi | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> index a9a7bb676c6f8ac48a2e443d28efdc8c9b5e52c0..890eaaa40184a18bff54f2d750968112a2546d19 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> @@ -5,6 +5,7 @@
>  
>  #include <dt-bindings/clock/qcom,rpmh.h>
>  #include <dt-bindings/clock/qcom,sc8280xp-lpasscc.h>
> +#include <dt-bindings/clock/qcom,sm8450-videocc.h>
>  #include <dt-bindings/clock/qcom,x1e80100-dispcc.h>
>  #include <dt-bindings/clock/qcom,x1e80100-gcc.h>
>  #include <dt-bindings/clock/qcom,x1e80100-gpucc.h>
> @@ -5171,6 +5172,20 @@ usb_1_ss1_dwc3_ss: endpoint {
>  			};
>  		};
>  
> +		videocc: clock-controller@...0000 {
> +			compatible = "qcom,x1e80100-videocc";
> +			reg = <0 0x0aaf0000 0 0x10000>;
> +			clocks = <&bi_tcxo_div2>,
> +				 <&gcc GCC_QMIP_VIDEO_VCODEC_AHB_CLK>;

This should be GCC_VIDEO_AHB_CLK, you can refer to it even if
we don't expose it through the clk framework on Linux (it's
enabled through magic writes instead)

Konrad