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

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Message-ID: <76f5e3c7-a90b-42d2-8169-e5e2211a14a1@linaro.org>
Date: Thu, 13 Jun 2024 09:41:59 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Ajit Pandey <quic_ajipan@...cinc.com>,
 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 6/11/24 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