linux-kernel - [PATCH v2 0/7] Add OnePlus 6T display (Samsung S6E3FC2X01 DDIC with AMS641RW panel)

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Message-Id: <20251008-s6e3fc2x01-v2-0-21eca1d5c289@ixit.cz>
Date: Wed, 08 Oct 2025 16:05:27 +0200
From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <jessica.zhang@....qualcomm.com>, 
 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>
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>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v2 0/7] Add OnePlus 6T display (Samsung S6E3FC2X01 DDIC
 with AMS641RW panel)

First, proper bindings for the DDIC and panel are added.

Next, the VCI and POC supplies are introduced for the OnePlus 6 and 6T
phones, and the OnePlus 6T device tree is updated with the new compatible
string.

This series also documents the tearing-effect GPIO line.

Finally, a new DDIC driver is introduced along with the AMS641RW panel
initialization sequences.

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

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 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: Describe panel vci and poc supplies

David Heidelberg (6):
      dt-bindings: panel: Add Samsung S6E3FC2X01 DDIC with panel
      arm64: dts: qcom: sdm845-oneplus-fajita: Use the freshly introduced driver
      arm64: dts: qcom: sdm845-oneplus: Describe TE gpio
      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

 .../bindings/display/panel/samsung,s6e3fc2x01.yaml |  78 ++++
 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   | 402 +++++++++++++++++++++
 7 files changed, 593 insertions(+), 22 deletions(-)
---
base-commit: 7c3ba4249a3604477ea9c077e10089ba7ddcaa03
change-id: 20250923-s6e3fc2x01-f9550b822fe5

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