linux-kernel - Re: [PATCH V4 8/8] arm64: dts: qcom: sm4450: add camera, display and gpu clock controller

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Message-ID: <ba7d12d3-c582-45ec-beed-e81182fe3252@quicinc.com>
Date: Wed, 3 Jul 2024 14:46:03 +0530
From: Ajit Pandey <quic_ajipan@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette
	<mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Vladimir Zapolskiy
	<vladimir.zapolskiy@...aro.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Taniya Das
	<quic_tdas@...cinc.com>,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        Imran Shaik
	<quic_imrashai@...cinc.com>,
        Satya Priya Kakitapalli
	<quic_skakitap@...cinc.com>
Subject: Re: [PATCH V4 8/8] arm64: dts: qcom: sm4450: add camera, display and
 gpu clock controller



On 6/13/2024 1:11 PM, Konrad Dybcio wrote:
> 
> 
> On 6/11/24 15:37, Ajit Pandey wrote:
>> Add device node for camera, display and graphics clock controller on
>> Qualcomm SM4450 platform.
>>
>> Signed-off-by: Ajit Pandey <quic_ajipan@...cinc.com>
>> ---
> 
> None of these nodes reference a power domain (which would usually be
> CX/MX/MMCX). This way, the RPMhPDs will never be scaled.
> 
> The current upstream implementation only allows one power domain to be
> scaled, but that's better than none (see other DTs for recent SoCs).
> 
> Konrad

SM4450 doesn't support MMCX and CX/MX domains will remain active so
power-domains property is actually not required for SM4450 clock nodes.
-- 
Thanks, and Regards
Ajit