linux-kernel - Re: [PATCH v2 4/4] arm64: dts: qcom: sm6350: Add video clock controller

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Message-ID: <1c09fee5-9626-4540-83fb-6d90db2ce595@oss.qualcomm.com>
Date: Tue, 1 Apr 2025 18:33:46 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Luca Weiss <luca.weiss@...rphone.com>,
        Bjorn Andersson <andersson@...nel.org>,
        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>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] arm64: dts: qcom: sm6350: Add video clock
 controller

On 3/24/25 9:41 AM, Luca Weiss wrote:
> Add a node for the videocc found on the SM6350 SoC.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>  arch/arm64/boot/dts/qcom/sm6350.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> index 42f9d16c2fa6da66a8bb524a33c2687a1e4b40e0..4498d6dfd61a7e30a050a8654d54dae2d06c220c 100644
> --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> @@ -1952,6 +1952,20 @@ usb_1_dwc3_ss_out: endpoint {
>  			};
>  		};
>  
> +		videocc: clock-controller@...0000 {
> +			compatible = "qcom,sm6350-videocc";
> +			reg = <0x0 0x0aaf0000 0x0 0x10000>;
> +			clocks = <&gcc GCC_VIDEO_AHB_CLK>,
> +				 <&rpmhcc RPMH_CXO_CLK>,
> +				 <&sleep_clk>;
> +			clock-names = "iface",
> +				      "bi_tcxo",
> +				      "sleep_clk";
> +			#clock-cells = <1>;
> +			#reset-cells = <1>;
> +			#power-domain-cells = <1>;
> +		};

You'll probably want to hook up some additional power domains here, see

https://lore.kernel.org/linux-arm-msm/20250327-videocc-pll-multi-pd-voting-v3-0-895fafd62627@quicinc.com/

Konrad