Hi
Am 28.08.25 um 00:24 schrieb Dmitry Baryshkov:
On Fri, Aug 22, 2025 at 02:39:44PM +0800, Andy Yan wrote:
From: Andy Yan <[email protected]>
There are two DW DPTX based DisplayPort Controller on rk3588 which
are compliant with the DisplayPort Specification Version 1.4 with
the following features:
* DisplayPort 1.4a
* Main Link: 1/2/4 lanes
* Main Link Support 1.62Gbps, 2.7Gbps, 5.4Gbps and 8.1Gbps
* AUX channel 1Mbps
* Single Stream Transport(SST)
* Multistream Transport (MST)
* Type-C support (alternate mode)
* HDCP 2.2, HDCP 1.3
* Supports up to 8/10 bits per color component
* Supports RBG, YCbCr4:4:4, YCbCr4:2:2, YCbCr4:2:0
* Pixel clock up to 594MHz
* I2S, SPDIF audio interface
The current version of this patch series only supports basic display outputs.
I conducted tests with DP0 in 1080p and 4K@60 YCbCr4:2:0 modes; the ALT/Type-C
mode was tested on Rock 5B, DP1 was tested on Rock 5 ITX by Stephen and Piotr.
HDCP and audio features remain unimplemented.
For RK3588, it's only support SST, while in the upcoming RK3576, it can support
MST output.
[skipped changelog]
Andy Yan (10):
dt-bindings: display: rockchip: Add schema for RK3588 DPTX Controller
drm/bridge: synopsys: Add DW DPTX Controller support library
drm/rockchip: Add RK3588 DPTX output support
MAINTAINERS: Add entry for DW DPTX Controller bridge
I tried pushing patches 1-4, but got the following error:
dim: ERROR: 5a68dcf5837a ("MAINTAINERS: Add entry for DW DPTX Controller
bridge"): Mandatory Maintainer Acked-by missing., aborting
I'm not sure how to handle MAINTAINERS changes (or whether it's fine for
me or not), so I will probably push patches 1-3 in a few days, if nobody
beats me (or unless somebody points out a correct process for
MAINTAINERS changes).
That warning has been added recently to make sure that patches do not
get in without sufficient review. It's overly pedantic, though. If
you're confident that you have R-bs from enough relevant people, push
the patches with 'dim -f' to ignore the warning.
Best regards
Thomas
dt-bindings: display: simple-bridge: Add ra620 compatible
drm/bridge: simple-bridge: Add support for radxa ra620
arm64: dts: rockchip: Add DP0 for rk3588
arm64: dts: rockchip: Add DP1 for rk3588
arm64: dts: rockchip: Enable DisplayPort for rk3588s Cool Pi 4B
arm64: dts: rockchip: Enable DP2HDMI for ROCK 5 ITX
.../display/bridge/simple-bridge.yaml | 1 +
.../display/rockchip/rockchip,dw-dp.yaml | 150 ++
MAINTAINERS | 8 +
arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 30 +
.../arm64/boot/dts/rockchip/rk3588-extra.dtsi | 30 +
.../boot/dts/rockchip/rk3588-rock-5-itx.dts | 59 +
.../boot/dts/rockchip/rk3588s-coolpi-4b.dts | 37 +
drivers/gpu/drm/bridge/simple-bridge.c | 5 +
drivers/gpu/drm/bridge/synopsys/Kconfig | 7 +
drivers/gpu/drm/bridge/synopsys/Makefile | 1 +
drivers/gpu/drm/bridge/synopsys/dw-dp.c | 2095 +++++++++++++++++
drivers/gpu/drm/rockchip/Kconfig | 9 +
drivers/gpu/drm/rockchip/Makefile | 1 +
drivers/gpu/drm/rockchip/dw_dp-rockchip.c | 150 ++
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 1 +
drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 1 +
include/drm/bridge/dw_dp.h | 20 +
17 files changed, 2605 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
create mode 100644 drivers/gpu/drm/bridge/synopsys/dw-dp.c
create mode 100644 drivers/gpu/drm/rockchip/dw_dp-rockchip.c
create mode 100644 include/drm/bridge/dw_dp.h
--
2.43.0
base-commit: 18b8261b84ad5462d7261617fbfa49d85d396fd9
branch: rk3588-dp-upstream-v7
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
