linux-kernel - Re: [PATCH v2 4/6] arm64: dts: qcom: x1e80100: Add CAMCC block definition

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Message-ID: <aaead9e5-a978-4b3b-8635-bd8be647ae35@linaro.org>
Date: Mon, 30 Dec 2024 21:45:49 +0200
From: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
To: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Loic Poulain <loic.poulain@...aro.org>, Robert Foss <rfoss@...nel.org>,
 Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Todor Tomov <todor.too@...il.com>,
 Mauro Carvalho Chehab <mchehab@...nel.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Jagadeesh Kona <quic_jkona@...cinc.com>,
 Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-media@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v2 4/6] arm64: dts: qcom: x1e80100: Add CAMCC block
 definition

Hi Bryan.

On 12/27/24 15:11, Bryan O'Donoghue wrote:
> Add the CAMCC block for x1e80100. The x1e80100 CAMCC block is an iteration
> of previous CAMCC blocks with the exception of having two required
> power-domains not just one.
> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/x1e80100.dtsi | 17 +++++++++++++++++
>   1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> index c18b99765c25c901b3d0a3fbaddc320c0a8c1716..5119cf64b461eb517e9306869ad0ec1b2cae629e 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> @@ -3,6 +3,7 @@
>    * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
>    */
>   
> +#include <dt-bindings/clock/qcom,x1e80100-camcc.h>
>   #include <dt-bindings/clock/qcom,rpmh.h>
>   #include <dt-bindings/clock/qcom,sc8280xp-lpasscc.h>
>   #include <dt-bindings/clock/qcom,x1e80100-dispcc.h>

It would be preferred to sort the list of includes in alphabetical order.

> @@ -4647,6 +4648,22 @@ usb_1_ss1_dwc3_ss: endpoint {
>   			};
>   		};
>   
> +		camcc: clock-controller@...0000 {
> +			compatible = "qcom,x1e80100-camcc";
> +			reg = <0 0x0ade0000 0 0x20000>;
> +			clocks = <&gcc GCC_CAMERA_AHB_CLK>,
> +				 <&bi_tcxo_div2>,
> +				 <&bi_tcxo_ao_div2>,
> +				 <&sleep_clk>;
> +			power-domains = <&rpmhpd RPMHPD_MXC>,
> +					<&rpmhpd RPMHPD_MMCX>;
> +			required-opps = <&rpmhpd_opp_low_svs>;
> +			#clock-cells = <1>;
> +			#reset-cells = <1>;
> +			#power-domain-cells = <1>;
> +			status = "disabled";

Please do not disable the clock controller, it was discussed in the past, that
all clock controllers should be enabled by default.

> +		};
> +
>   		mdss: display-subsystem@...0000 {
>   			compatible = "qcom,x1e80100-mdss";
>   			reg = <0 0x0ae00000 0 0x1000>;
> 

--
Best wishes,
Vladimir