[PATCH 0/5] Support for Exynos7870's display stack (DECON, MIPIPHY, DSIM, etc.)
Rob Herring (Arm)
robh at kernel.org
Thu Jun 12 13:12:28 PDT 2025
On Thu, 12 Jun 2025 20:53:36 +0530, Kaustabh Chakraborty wrote:
> 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 at disroot.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 at disroot.org>
>
>
>
My bot found new DTB warnings on the .dts files added or changed in this
series.
Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.
If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:
pip3 install dtschema --upgrade
This patch series was applied (using b4) to base:
Base: using specified base-commit 0bb71d301869446810a0b13d3da290bd455d7c78
If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)
New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/exynos/' for 20250612-exynos7870-drm-dts-v1-0-88c0779af6cb at disroot.org:
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: False schema does not allow {'compatible': ['samsung,exynos7870-mipi-video-phy'], '#phy-cells': 1, 'samsung,disp-sysreg': [[12]], 'samsung,cam-sysreg': [13], 'phandle': 73}
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam-sysreg' does not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam0-sysreg' is a required property
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam1-sysreg' is a required property
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy:compatible:0: 'samsung,exynos7870-mipi-video-phy' is not one of ['samsung,s5pv210-mipi-video-phy', 'samsung,exynos5420-mipi-video-phy', 'samsung,exynos5433-mipi-video-phy']
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: Unevaluated properties are not allowed ('compatible', 'samsung,cam-sysreg' were unexpected)
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: /soc at 0/system-controller at 10480000/mipi-phy: failed to match any schema with compatible: ['samsung,exynos7870-mipi-video-phy']
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: /soc at 0/dsi at 14800000: failed to match any schema with compatible: ['samsung,exynos7870-mipi-dsi']
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: /soc at 0/dsi at 14800000/panel at 0: failed to match any schema with compatible: ['syna,td4300-panel']
arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dtb: decon at 14830000 (samsung,exynos7870-decon): 'iommus', 'ports' do not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/display/samsung/samsung,exynos7-decon.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: False schema does not allow {'compatible': ['samsung,exynos7870-mipi-video-phy'], '#phy-cells': 1, 'samsung,disp-sysreg': [[12]], 'samsung,cam-sysreg': [13], 'phandle': 73}
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam-sysreg' does not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam0-sysreg' is a required property
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam1-sysreg' is a required property
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy:compatible:0: 'samsung,exynos7870-mipi-video-phy' is not one of ['samsung,s5pv210-mipi-video-phy', 'samsung,exynos5420-mipi-video-phy', 'samsung,exynos5433-mipi-video-phy']
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: Unevaluated properties are not allowed ('compatible', 'samsung,cam-sysreg' were unexpected)
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: /soc at 0/system-controller at 10480000/mipi-phy: failed to match any schema with compatible: ['samsung,exynos7870-mipi-video-phy']
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: False schema does not allow {'compatible': ['samsung,exynos7870-mipi-video-phy'], '#phy-cells': 1, 'samsung,disp-sysreg': [[12]], 'samsung,cam-sysreg': [13], 'phandle': 72}
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam-sysreg' does not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam0-sysreg' is a required property
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: 'samsung,cam1-sysreg' is a required property
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy:compatible:0: 'samsung,exynos7870-mipi-video-phy' is not one of ['samsung,s5pv210-mipi-video-phy', 'samsung,exynos5420-mipi-video-phy', 'samsung,exynos5433-mipi-video-phy']
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: system-controller at 10480000 (samsung,exynos7870-pmu): mipi-phy: Unevaluated properties are not allowed ('compatible', 'samsung,cam-sysreg' were unexpected)
from schema $id: http://devicetree.org/schemas/soc/samsung/exynos-pmu.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: /soc at 0/system-controller at 10480000/mipi-phy: failed to match any schema with compatible: ['samsung,exynos7870-mipi-video-phy']
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: /soc at 0/dsi at 14800000: failed to match any schema with compatible: ['samsung,exynos7870-mipi-dsi']
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: /soc at 0/dsi at 14800000/panel at 0: failed to match any schema with compatible: ['syna,td4101-panel']
arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dtb: decon at 14830000 (samsung,exynos7870-decon): 'iommus', 'ports' do not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/display/samsung/samsung,exynos7-decon.yaml#
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: /soc at 0/dsi at 14800000: failed to match any schema with compatible: ['samsung,exynos7870-mipi-dsi']
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: /soc at 0/dsi at 14800000/panel at 0: failed to match any schema with compatible: ['samsung,s6e8aa5x01']
arch/arm64/boot/dts/exynos/exynos7870-j6lte.dtb: decon at 14830000 (samsung,exynos7870-decon): 'iommus', 'ports' do not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/display/samsung/samsung,exynos7-decon.yaml#
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