linux-kernel - [PATCH v2 0/3] SDM630/660: Add missing MDSS reset

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Message-Id: <20251116-sdm660-mdss-reset-v2-0-6219bec0a97f@postmarketos.org>
Date: Sun, 16 Nov 2025 04:12:32 +0300
From: Alexey Minnekhanov <alexeymin@...tmarketos.org>
To: Bjorn Andersson <andersson@...nel.org>, Stephen Boyd <sboyd@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 stable@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht, 
 Alexey Minnekhanov <alexeymin@...tmarketos.org>
Subject: [PATCH v2 0/3] SDM630/660: Add missing MDSS reset

Since kernel 6.17 display stack needs to reset the hardware properly to
ensure that we don't run into issues with the hardware configured by the
bootloader. MDSS reset is necessary to have working display when the
bootloader has already initialized it for the boot splash screen.

Signed-off-by: Alexey Minnekhanov <alexeymin@...tmarketos.org>
---
Changes in v2:
- Added "Fixes" tag, pointing to commit which is the root cause for
  exposing this "bug", which is only present since 6.17
- Extended commit messages
- Prepared series using correct user.email git setting
- Link to v1: https://lore.kernel.org/r/20251031-sdm660-mdss-reset-v1-0-14cb4e6836f2@postmarketos.org

---
Alexey Minnekhanov (3):
      dt-bindings: clock: mmcc-sdm660: Add missing MDSS reset
      clk: qcom: mmcc-sdm660: Add missing MDSS reset
      arm64: dts: qcom: sdm630: Add missing MDSS reset

 arch/arm64/boot/dts/qcom/sdm630.dtsi         | 1 +
 drivers/clk/qcom/mmcc-sdm660.c               | 1 +
 include/dt-bindings/clock/qcom,mmcc-sdm660.h | 1 +
 3 files changed, 3 insertions(+)
---
base-commit: 1cc41c88ef00de0f3216c5f4b9cfab47de1c49d3
change-id: 20251031-sdm660-mdss-reset-015a46a238b5

Best regards,
-- 
Alexey Minnekhanov <alexeymin@...tmarketos.org>