From: Akhil P Oommen <quic_akhilpo@quicinc.com>
To: freedreno <freedreno@lists.freedesktop.org>,
<dri-devel@lists.freedesktop.org>,
<linux-arm-msm@vger.kernel.org>, Rob Clark <robdclark@gmail.com>,
Bjorn Andersson <andersson@kernel.org>,
Stephen Boyd <swboyd@chromium.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: Douglas Anderson <dianders@chromium.org>,
<krzysztof.kozlowski@linaro.org>,
Akhil P Oommen <quic_akhilpo@quicinc.com>,
Abhinav Kumar <quic_abhinavk@quicinc.com>,
Andy Gross <agross@kernel.org>, Daniel Vetter <daniel@ffwll.ch>,
David Airlie <airlied@linux.ie>,
"Konrad Dybcio" <konrad.dybcio@somainline.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Rob Herring <robh+dt@kernel.org>, Sean Paul <sean@poorly.run>,
Stephen Boyd <sboyd@kernel.org>, <devicetree@vger.kernel.org>,
<linux-clk@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v7 0/6] clk/qcom: Support gdsc collapse polling using 'reset' interface
Date: Wed, 5 Oct 2022 14:36:58 +0530 [thread overview]
Message-ID: <1664960824-20951-1-git-send-email-quic_akhilpo@quicinc.com> (raw)
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 qcom/linux:for-next branch.
Related discussion: https://patchwork.freedesktop.org/patch/493144/
Changes in v7:
- Update commit message (Bjorn)
- Rebased on top of qcom/linux:for-next branch.
Changes in v6:
- No code changes in this version. Just captured the Acked-by tags
Changes in v5:
- Nit: Remove a duplicate blank line (Krzysztof)
Changes in v4:
- Update gpu dt-binding schema
- Typo fix in commit text
Changes in v3:
- Use pointer to const for "struct qcom_reset_ops" in qcom_reset_map (Krzysztof)
Changes in v2:
- Return error when a particular custom reset op is not implemented. (Dmitry)
Akhil P Oommen (6):
dt-bindings: clk: qcom: Support gpu cx gdsc reset
clk: qcom: Allow custom reset ops
clk: qcom: gdsc: Add a reset op to poll gdsc collapse
clk: qcom: gpucc-sc7280: Add cx collapse reset support
dt-bindings: drm/msm/gpu: Add optional resets
arm64: dts: qcom: sc7280: Add Reset support for gpu
.../devicetree/bindings/display/msm/gpu.yaml | 6 +++++
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 | 10 ++++++++
drivers/clk/qcom/reset.c | 27 +++++++++++++++++++++-
drivers/clk/qcom/reset.h | 8 +++++++
include/dt-bindings/clock/qcom,gpucc-sc7280.h | 3 +++
8 files changed, 82 insertions(+), 5 deletions(-)
--
2.7.4
next reply other threads:[~2022-10-05 9:07 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-05 9:06 Akhil P Oommen [this message]
2022-10-05 9:06 ` [PATCH v7 1/6] dt-bindings: clk: qcom: Support gpu cx gdsc reset Akhil P Oommen
2022-10-05 9:07 ` [PATCH v7 2/6] clk: qcom: Allow custom reset ops Akhil P Oommen
2022-10-05 9:07 ` [PATCH v7 3/6] clk: qcom: gdsc: Add a reset op to poll gdsc collapse Akhil P Oommen
2022-12-07 15:45 ` Ulf Hansson
2022-12-08 15:02 ` Akhil P Oommen
2022-12-08 15:30 ` [Freedreno] " Akhil P Oommen
2022-10-05 9:07 ` [PATCH v7 4/6] clk: qcom: gpucc-sc7280: Add cx collapse reset support Akhil P Oommen
2022-12-07 15:46 ` Ulf Hansson
2022-12-08 15:24 ` Akhil P Oommen
2022-12-08 21:09 ` Bjorn Andersson
2022-12-12 17:49 ` Akhil P Oommen
2022-11-07 16:54 ` [PATCH v7 0/6] clk/qcom: Support gdsc collapse polling using 'reset' interface Akhil P Oommen
2022-12-01 22:57 ` Bjorn Andersson
2022-12-02 7:00 ` [Freedreno] " Akhil P Oommen
2022-12-06 19:58 ` Akhil P Oommen
2022-12-07 16:00 ` Ulf Hansson
2022-12-07 16:54 ` Bjorn Andersson
2022-12-08 13:40 ` Ulf Hansson
2022-12-08 14:45 ` Akhil P Oommen
2022-12-08 21:06 ` Bjorn Andersson
2022-12-09 17:36 ` Ulf Hansson
2022-12-12 15:39 ` Ulf Hansson
2022-12-12 17:43 ` Akhil P Oommen
2022-12-27 18:24 ` Bjorn Andersson
2022-12-28 9:23 ` Akhil P Oommen
2022-12-08 15:31 ` Akhil P Oommen
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