linux-kernel - [PATCH v4 0/7] Add OnePlus 6T display (Samsung S6E3FC2X01 DDIC with AMS641RW panel)

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Message-Id: <20251021-s6e3fc2x01-v4-0-5e3ee21c688a@ixit.cz>
Date: Tue, 21 Oct 2025 13:53:00 +0200
From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thierry Reding <thierry.reding@...il.com>, Sam Ravnborg <sam@...nborg.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Casey Connolly <casey.connolly@...aro.org>, 
 Jessica Zhang <jesszhan0024@...il.com>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 phone-devel@...r.kernel.org, David Heidelberg <david@...t.cz>, 
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Subject: [PATCH v4 0/7] Add OnePlus 6T display (Samsung S6E3FC2X01 DDIC
 with AMS641RW panel)

This patchset enables the display on the OnePlus 6T smartphone.

Patches 1-2 add the bindings and the panel driver.
Patches 3-6 document the panel, pinctrls, and GPIOs.
Patch 7 removes the compatible entry from the simple DSI panel.

Since the display node is shared between the OnePlus 6 and 6T,
the following warning appears:

..sdm845-oneplus-enchilada.dtb: panel@0 (samsung,sofef00): 'poc-supply', 'te-gpios', 'vci-supply' do not match any of the regexes: '^pinctrl-[0-9]+$'

This will be addressed in a follow-up patch, as the SOFEF00 DDIC also
requires additional overhaul to properly initialize and function in mainline.

Signed-off-by: David Heidelberg <david@...t.cz>
---
Changes in v4:
- Use refcounted allocation in place of devm_kzalloc()
- Added include drm_probe_helper (Raihan)
- Corrected te-gpio value from 30 to 10.
- Removed legacy compatible samsung,s6e3fc2x01 from the driver (Dmitry)
- Removed old compatible also from panel-simple-dsi enum.
- Link to v3: https://lore.kernel.org/r/20251016-s6e3fc2x01-v3-0-ce0f3566b903@ixit.cz

Changes in v3:
- Use mipi_dsi_dcs_set_display_brightness_large (Konrad)
- added legacy compatible samsung,s6e3fc2x01 into the driver (Dmitry)
- extended compatible string to
  "samsung,s6e3fc2x01-ams641rw", "samsung,s6e3fc2x01" (Dmitry)
- Brought back
  "dt-bindings: display: panel-simple-dsi: Remove Samsung S6E3FC2 compatible"
- Link to v2: https://lore.kernel.org/r/20251008-s6e3fc2x01-v2-0-21eca1d5c289@ixit.cz

Changes in v2:
- Dropped the gpio reset polarity change as suggested (Jens and Dmitry).
- Fixed unused warnings (kernel test robot).
- Added a pinctrl config for the VCI and POC supply.
- Removed patch "dt-bindings: display: panel-simple-dsi: Remove Samsung S6E3FC2 compatible"
  while the compatible is used in device-tree, but without any driver
  serving it, do not touch it (Rob)
- Added more details into the device-tree about the OnePlus 6T panel properties
- Put display gpio -pins into one -state block.
- Link to v1: https://lore.kernel.org/r/20250925-s6e3fc2x01-v1-0-9293016768f7@ixit.cz

---
Casey Connolly (1):
      arm64: dts: qcom: sdm845-oneplus: Update compatbible and add DDIC supplies

David Heidelberg (6):
      dt-bindings: panel: Add Samsung S6E3FC2X01 DDIC with panel
      drm/panel: Add Samsung S6E3FC2X01 DDIC with AMS641RW panel
      arm64: dts: qcom: sdm845-oneplus: Group panel pinctrl
      arm64: dts: qcom: sdm845-oneplus: Implement panel sleep pinctrl
      arm64: dts: qcom: sdm845-oneplus: Describe TE gpio
      dt-bindings: display: panel-simple-dsi: Remove Samsung S6E3FC2 compatible

 .../bindings/display/panel/panel-simple-dsi.yaml   |   3 -
 .../bindings/display/panel/samsung,s6e3fc2x01.yaml |  81 +++++
 MAINTAINERS                                        |   6 +
 .../arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 113 ++++--
 arch/arm64/boot/dts/qcom/sdm845-oneplus-fajita.dts |   2 +-
 drivers/gpu/drm/panel/Kconfig                      |  13 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 drivers/gpu/drm/panel/panel-samsung-s6e3fc2x01.c   | 385 +++++++++++++++++++++
 8 files changed, 579 insertions(+), 25 deletions(-)
---
base-commit: 606da5bb165594c052ee11de79bf05bc38bc1aa6
change-id: 20250923-s6e3fc2x01-f9550b822fe5

Best regards,
-- 
David Heidelberg <david@...t.cz>