linux-kernel - Re: [PATCH 2/3] arm64: dts: qcom: sc7280: Add Camera Control Interface busses

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Message-ID: <8dd470e5-ce33-3d33-98f1-e66935ca7b56@linaro.org>
Date:   Fri, 29 Sep 2023 15:35:17 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Luca Weiss <luca.weiss@...rphone.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Loic Poulain <loic.poulain@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Andi Shyti <andi.shyti@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        cros-qcom-dts-watchers@...omium.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] arm64: dts: qcom: sc7280: Add Camera Control
 Interface busses



On 9/29/23 10:01, Luca Weiss wrote:
> Add the CCI busses found on sc7280 and their pinctrl states.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>   arch/arm64/boot/dts/qcom/sc7280.dtsi | 136 +++++++++++++++++++++++++++++++++++
>   1 file changed, 136 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 66f1eb83cca7..65550de2e4ff 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -3793,6 +3793,86 @@ videocc: clock-controller@...0000 {
>   			#power-domain-cells = <1>;
>   		};
>   
> +		cci0: cci@...a000 {
> +			compatible = "qcom,sc7280-cci", "qcom,msm8996-cci";
> +			reg = <0 0x0ac4a000 0 0x1000>;
> +			interrupts = <GIC_SPI 460 IRQ_TYPE_EDGE_RISING>;
> +			power-domains = <&camcc CAM_CC_TITAN_TOP_GDSC>;
> +
> +			clocks = <&camcc CAM_CC_CAMNOC_AXI_CLK>,
> +				 <&camcc CAM_CC_SLOW_AHB_CLK_SRC>,
> +				 <&camcc CAM_CC_CPAS_AHB_CLK>,
> +				 <&camcc CAM_CC_CCI_0_CLK>,
> +				 <&camcc CAM_CC_CCI_0_CLK_SRC>;
> +			clock-names = "camnoc_axi",
> +				      "slow_ahb_src",
> +				      "cpas_ahb",
> +				      "cci",
> +				      "cci_src";
I guess this is more of a question to e.g. Bryan, but are all of these 
clocks actually necessary?

Konrad