linux-kernel - [PATCH 0/5] Support for Exynos7870's display stack (DECON, MIPIPHY, DSIM, etc.)

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Message-Id: <20250612-exynos7870-drm-dts-v1-0-88c0779af6cb@disroot.org>
Date: Thu, 12 Jun 2025 20:53:36 +0530
From: Kaustabh Chakraborty <kauschluss@...root.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Kaustabh Chakraborty <kauschluss@...root.org>
Subject: [PATCH 0/5] Support for Exynos7870's display stack (DECON,
 MIPIPHY, DSIM, etc.)

Exynos7870 has a IP subsystem in its architecture dedicated to display
management. Notably, this block includes the Display Enhancement
Controller (DECON), and the DSI Master (DSIM).

The following series and its sub-series implement all components for a
functioning display pipeline. All vital information which helped shaping
up the patches have been retrieved from Exynos7870 vendor kernel sources
as provided by Samsung.

Testing has been done on all three devices available upstream, i.e.
Samsung Galaxy J7 Prime (samsung-on7xelte), Samsung Galaxy A2 Core
(samsung-a2corelte), and Samsung Galaxy J6 (samsung-j6lte). Regrettably,
I've only been able to test the functionality on video mode, as none of
the devices have panels working in command mode.

This series implements changes in the SoC subsystem, which includes
devicetree additions. It depends on all sub-series listed below:
(Legend: [R]eviewed, [A]ccepted)

exynosdrm-decon            - https://lore.kernel.org/r/20250612-exynosdrm-decon-v2-0-d6c1d21c8057@disroot.org
exynos7870-mipi-phy        - https://lore.kernel.org/r/20250612-exynos7870-mipi-phy-v1-0-3fff0b62d9d3@disroot.org
exynos7870-dsim            - https://lore.kernel.org/r/20250612-exynos7870-dsim-v1-0-1a330bca89df@disroot.org
panel-samsung-s6e8aa5x01   - https://lore.kernel.org/r/20250612-panel-synaptics-tddi-v1-0-dfb8a425f76c@disroot.org
panel-synaptics-tddi       - https://lore.kernel.org/r/20250612-panel-samsung-s6e8aa5x01-v1-0-06dcba071ea6@disroot.org

Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
---
Kaustabh Chakraborty (5):
      dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
      arch: arm64: dts: exynos7870: add DSI support
      arch: arm64: dts: exynos7870-on7xelte: enable display panel support
      arch: arm64: dts: exynos7870-a2corelte: enable display panel support
      arch: arm64: dts: exynos7870-j6lte: enable display panel support

 .../soc/samsung/samsung,exynos-sysreg.yaml         |  6 ++
 .../arm64/boot/dts/exynos/exynos7870-a2corelte.dts | 41 ++++++++++
 arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts    | 38 +++++++++
 arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts | 40 +++++++++
 arch/arm64/boot/dts/exynos/exynos7870.dtsi         | 94 ++++++++++++++++++++++
 5 files changed, 219 insertions(+)
---
base-commit: 0bb71d301869446810a0b13d3da290bd455d7c78
change-id: 20250523-exynos7870-drm-dts-87ccab731ba9

Best regards,
-- 
Kaustabh Chakraborty <kauschluss@...root.org>