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SubjectRe: [PATCH 0/5] clk/qcom: Support gdsc collapse polling using 'reset' inteface
On Sat 30 Jul 04:17 CDT 2022, Akhil P Oommen wrote:

>
> Some clients like adreno gpu driver would like to ensure that its gdsc
> is collapsed at hardware during a gpu reset sequence. This is because it
> has a votable gdsc which could be ON due to a vote from another subsystem
> like tz, hyp etc or due to an internal hardware signal. To allow
> this, gpucc driver can expose an interface to the client driver using
> reset framework. Using this the client driver can trigger a polling within
> the gdsc driver.
>
> This series is rebased on top of linus's master branch.
>
> Related discussion: https://patchwork.freedesktop.org/patch/493144/
>

Forgive me if I'm assuming too much, but isn't this an extension of:

85a3d920d30a ("clk: qcom: Add a dummy enable function for GX gdsc")

With the additional requirement that disable should really ensure that
the GDSC is turned off?

Regards,
Bjorn

>
> Akhil P Oommen (5):
> dt-bindings: clk: qcom: Support gpu cx gdsc reset
> clk: qcom: Allow custom reset ops
> clk: qcom: gpucc-sc7280: Add cx collapse reset support
> clk: qcom: gdsc: Add a reset op to poll gdsc collapse
> arm64: dts: qcom: sc7280: Add Reset support for gpu
>
> arch/arm64/boot/dts/qcom/sc7280.dtsi | 3 +++
> drivers/clk/qcom/gdsc.c | 23 +++++++++++++++++++----
> drivers/clk/qcom/gdsc.h | 7 +++++++
> drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++
> drivers/clk/qcom/reset.c | 6 ++++++
> drivers/clk/qcom/reset.h | 2 ++
> include/dt-bindings/clock/qcom,gpucc-sc7280.h | 3 +++
> 7 files changed, 46 insertions(+), 4 deletions(-)
>
> --
> 2.7.4
>

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