linux-kernel - [PATCH v2 0/6] drm/sun4i: Support LVDS on D1s/T113 combo D-PHY

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251116131853.440863-1-kuba@szczodrzynski.pl>
Date: Sun, 16 Nov 2025 14:18:47 +0100
From: Kuba Szczodrzyński <kuba@...zodrzynski.pl>
To: Maxime Ripard <mripard@...nel.org>,
	Samuel Holland <samuel@...lland.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	parthiban@...umiz.com,
	paulk@...-base.io
Subject: [PATCH v2 0/6] drm/sun4i: Support LVDS on D1s/T113 combo D-PHY

Some Allwinner chips (notably the D1s/T113 and the A100) have a "combo
MIPI DSI D-PHY" which is required when using single-link LVDS0. The same
PD0..PD9 pins are used for either DSI or LVDS.

Other than having to use the combo D-PHY, LVDS output is configured in
the same way as on older chips.

This series enables the sun6i MIPI D-PHY to also work in LVDS mode. It
is then configured by the LCD TCON, which allows connecting a
single-link LVDS display panel.

Changes in v2:
- Applied code formatting changes from review comments
- Changed "dphy" to "combo-phy"
- Made the LVDS setup/teardown functions abort early in case of error
  (adding a proper return value would require changes in several levels
   of caller functions; perhaps could be done in a separate patch)
- Added the PHY properties to DT bindings
- Renamed lvds0_pins to lcd_lvds0_pins
- Rebased on top of drm/misc/kernel/for-linux-next

Kuba Szczodrzyński (6):
  phy: allwinner: phy-sun6i-mipi-dphy: Support LVDS in combo D-PHY
  drm/sun4i: Support LVDS using MIPI DSI combo D-PHY
  drm/sun4i: Enable LVDS output on sun20i D1s/T113
  dt-bindings: display: sun4i: Add D1s/T113 combo D-PHY bindings
  riscv: dts: allwinner: d1s-t113: Add D-PHY to TCON LCD0
  riscv: dts: allwinner: d1s-t113: Add LVDS0 pins

 .../display/allwinner,sun4i-a10-tcon.yaml     |  6 ++
 .../boot/dts/allwinner/sunxi-d1s-t113.dtsi    | 11 +++
 drivers/gpu/drm/sun4i/sun4i_tcon.c            | 50 +++++++++++++
 drivers/gpu/drm/sun4i/sun4i_tcon.h            |  6 ++
 drivers/phy/allwinner/phy-sun6i-mipi-dphy.c   | 70 ++++++++++++++++++-
 5 files changed, 141 insertions(+), 2 deletions(-)

-- 
2.25.1