linux-kernel - [PATCH v5 0/5] media: qcom: iris/venus: fix power domain handling on SM8250

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Message-Id: <20260209-iris-venus-fix-sm8250-v5-0-0a22365d3585@oss.qualcomm.com>
Date: Mon, 09 Feb 2026 03:32:15 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: 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>, Taniya Das <quic_tdas@...cinc.com>,
        Jonathan Marek <jonathan@...ek.ca>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Bryan O'Donoghue <bod@...nel.org>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Hans Verkuil <hverkuil@...nel.org>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Dikshita Agarwal <dikshita@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-media@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v5 0/5] media: qcom: iris/venus: fix power domain handling
 on SM8250

As pointed out by Konrad during the review of SM8350 / SC8280XP
patchset, Iris aka Venus description has several flows. It doesn't scale
MMCX, the frequencies in the OPP table are wrong, etc.

Let's correct the Iris/Venus enablement for SM8250 (unfortunately also
stopping it from being overclocked).

The videocc patches (DT, DTS) can be applied during -rc, the rest of the
patches should go for the next -rc1.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
Changes in v5:
- Fixed maxItemx -> maxItems typo
- Link to v4: https://lore.kernel.org/r/20260209-iris-venus-fix-sm8250-v4-0-9662a0471d82@oss.qualcomm.com

Changes in v4:
- Dropped MX voting by videocc: it's almost-always-on (Krzysztof)
- Restored minItems for the venus device, preserving the ABI (Krzysztof)
- Link to v3: https://lore.kernel.org/r/20260204-iris-venus-fix-sm8250-v3-0-70fa68e57f96@oss.qualcomm.com

Changes in v3:
- Dropped applied patch
- Fixed typos in the commit messages (Dikshita, Konrad)
- Corrected MX OPP levels (Dikshita)
- Switched Konrad from Suggested-by to Reported-by (Konrad)
- Link to v2: https://lore.kernel.org/r/20260201-iris-venus-fix-sm8250-v2-0-6f40d2605c89@oss.qualcomm.com

Changes in v2:
- Fixed example in the new sm8250-videocc schema
- Link to v1: https://lore.kernel.org/r/20260131-iris-venus-fix-sm8250-v1-0-b635ee66284c@oss.qualcomm.com

---
Dmitry Baryshkov (5):
      media: dt-bindings: qcom,sm8250-venus: sort out power domains
      media: iris: scale MMCX power domain on SM8250
      media: venus: scale MMCX power domain on SM8250
      arm64: dts: qcom: sm8250: sort out Iris power domains
      arm64: dts: qcom: sm8250: correct frequencies in the Iris OPP table

 .../bindings/media/qcom,sm8250-venus.yaml          | 11 +++++--
 arch/arm64/boot/dts/qcom/sm8250.dtsi               | 36 +++++++++++++---------
 .../media/platform/qcom/iris/iris_platform_gen1.c  |  2 +-
 drivers/media/platform/qcom/iris/iris_probe.c      |  7 +++++
 drivers/media/platform/qcom/venus/core.c           |  7 ++++-
 drivers/media/platform/qcom/venus/core.h           |  1 +
 drivers/media/platform/qcom/venus/pm_helpers.c     |  8 ++++-
 7 files changed, 52 insertions(+), 20 deletions(-)
---
base-commit: 9845cf73f7db6094c0d8419d6adb848028f4a921
change-id: 20260131-iris-venus-fix-sm8250-f938e29e7497

Best regards,
-- 
With best wishes
Dmitry