linux-kernel - [PATCH v2 0/5] Add DisplayPort support for rk3576

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Message-ID: <20260201081338.407999-1-andyshrk@163.com>
Date: Sun,  1 Feb 2026 16:13:26 +0800
From: Andy Yan <andyshrk@....com>
To: dmitry.baryshkov@....qualcomm.com,
	heiko@...ech.de
Cc: alchark@...il.com,
	andrzej.hajda@...el.com,
	conor+dt@...nel.org,
	cristian.ciocaltea@...labora.com,
	airlied@...il.com,
	jernej.skrabec@...il.com,
	jonas@...boo.se,
	kever.yang@...k-chips.com,
	krzk+dt@...nel.org,
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	mripard@...nel.org,
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	tzimmermann@...e.de,
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	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v2 0/5] Add DisplayPort support for rk3576

From: Andy Yan <andy.yan@...k-chips.com>


The DisplayPort found on RK3576 is very similar to that of RK3588,
but work in dual pixel mode and support for MST.

This patch series aims to add basic display output, not include audio
and MST, which will be the work for the next stage.

Tested with 2 lane standard DP port and USB-C Alt mode output now.
For those who want to give it a try, I have a reference branch here[0].

[0]https://github.com/andyshrk/linux/tree/rk3576-dp-upstream-v1


Changes in v2:
- Remove unnecessary maxItems
- Commit message improve: The pixel mode is determined during the IC
  integration stage

Andy Yan (5):
  dt-bindings: display: rockchip: Add rk3576 DisplayPort
  drm/bridge: synopsys: dw-dp: Set pixel mode by platform data
  drm/bridge: synopsys: dw-dp: Make i2s/spdif clk optional
  drm/rockchip: dw_dp: Add DisplayPort support for rk3576
  arm64: dts: rockchip: Add DisplayPort dt node for rk3576

 .../display/rockchip/rockchip,dw-dp.yaml      | 27 ++++++++++++++++--
 arch/arm64/boot/dts/rockchip/rk3576.dtsi      | 28 +++++++++++++++++++
 drivers/gpu/drm/bridge/synopsys/dw-dp.c       | 12 ++------
 drivers/gpu/drm/rockchip/dw_dp-rockchip.c     | 27 +++++++++++++++---
 include/drm/bridge/dw_dp.h                    |  7 +++++
 5 files changed, 85 insertions(+), 16 deletions(-)

-- 
2.43.0