linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: sm6350: Add video clock controller

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Message-ID: <dbdc13ec-13ca-4d80-8c96-26e5e7b4ab3e@oss.qualcomm.com>
Date: Fri, 21 Mar 2025 18:23:45 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Luca Weiss <luca.weiss@...rphone.com>
Cc: 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>,
        ~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 3/3] arm64: dts: qcom: sm6350: Add video clock controller

On 21/03/2025 18:15, Luca Weiss wrote:
> Hi Dmitry,
> 
> On Fri Mar 21, 2025 at 4:56 PM CET, Dmitry Baryshkov wrote:
>> On Fri, Mar 21, 2025 at 03:45:01PM +0100, 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 00ad1d09a19558d9e2bc61f1a81a36d466adc88e..ab7118b4f8f8cea56a3957e9df67ee1cd74820a6 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 = <0 0x0aaf0000 0 0x10000>;
>>
>> 0x0, please.
> 
> There's currently 80 cases of 0 and 20 of 0x0 in this file, is 0x0
> the preferred way nowadays?
> 
> If so, shall I also change 0 to 0x0 for reg in a separate patch?

I'd say, yes, please, if Bjorn / Konrad do not object.

> 
> Regards
> Luca
> 
>>
>>> +			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>;
>>> +		};
>>> +
>>>   		cci0: cci@...a000 {
>>>   			compatible = "qcom,sm6350-cci", "qcom,msm8996-cci";
>>>   			reg = <0 0x0ac4a000 0 0x1000>;
>>>
>>> -- 
>>> 2.49.0
>>>
> 


-- 
With best wishes
Dmitry