linux-kernel - Re: [PATCH v2 11/11] clk: qcom: Add support for GPUCC and GXCLK for Kaanapali

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Message-ID: <ed17edd9-fd96-4562-a3dc-45cf7185f66a@oss.qualcomm.com>
Date: Wed, 17 Dec 2025 14:22:59 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Taniya Das <taniya.das@....qualcomm.com>,
        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>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Ajit Pandey <ajit.pandey@....qualcomm.com>,
        Imran Shaik <imran.shaik@....qualcomm.com>,
        Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 11/11] clk: qcom: Add support for GPUCC and GXCLK for
 Kaanapali

On 11/25/25 6:45 PM, Taniya Das wrote:
> Support the graphics clock controller for Kaanapali for Graphics SW
> driver to use the clocks. GXCLKCTL (Graphics GX Clock Controller) is a
> block dedicated to managing clocks for the GPU subsystem on GX power
> domain. The GX clock controller driver manages only the GX GDSC and the
> rest of the resources of the controller are managed by the firmware.
> 
> Signed-off-by: Taniya Das <taniya.das@....qualcomm.com>
> ---
>  drivers/clk/qcom/Kconfig              |   9 +
>  drivers/clk/qcom/Makefile             |   1 +
>  drivers/clk/qcom/gpucc-kaanapali.c    | 494 ++++++++++++++++++++++++++++++++++
>  drivers/clk/qcom/gxclkctl-kaanapali.c |  76 ++++++

I previously proposed bunching the little guy with the other
object file:

https://lore.kernel.org/linux-arm-msm/20250723-topic-8750_gpucc-v2-2-56c93b84c390@oss.qualcomm.com/

And I still think that's a better idea. Alternatively, we could
create a small "gxclkctl.c" and make it common across all such
platforms, but I'm not sure that makes sense, if for each one of
them we're already going to carry a gpucc-xyz.c anyway

Konrad