[PATCH v8 0/3] Add display support for the MT8365-EVK board

[Alexandre Mergnat <amergnat@baylibre.com>]

The purpose of this series is to add the display support for the mt8365-evk.

This is the list of HWs / IPs support added:
- Connectors (HW):
  - HDMI
  - MIPI DSI (Mobile Industry Processor Interface Display Serial Interface)
- HDMI bridge (it66121)
- DSI pannel (startek,kd070fhfid015)
- SoC display blocks (IP):
  - OVL0 (Overlay)
  - RDMA0 (Data Path Read DMA)
  - Color0
  - CCorr0 (Color Correction)
  - AAL0 (Adaptive Ambient Light)
  - GAMMA0
  - Dither0
  - DSI0 (Display Serial Interface)
  - RDMA1 (Data Path Read DMA)
  - DPI0 (Display Parallel Interface)

The Mediatek DSI, DPI and DRM drivers are also improved.

The series is rebased on top of Angelo's series [1] to
use the OF graphs support.

Update 03/20/25:
According to Angelo's comment, the DSI fix in the previous version
doesn't fix the root issue.
Then, the "drm/mediatek: dsi: Improves the DSI lane setup robustness"
as been replaced by two other patch to fix the DSI power on sequence
and remove custom power function.

Regards,
Alex

Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
---
Changes in v8:
- Patch merged, then removed from the series:
  - dt-bindings: display: mediatek: dpi: add power-domains example
  - drm/mediatek: add MT8365 SoC support
  - arm64: dts: mediatek: add display blocks support for the MT8365 SoC
  - arm64: dts: mediatek: add display support for mt8365-evk
- Patch removed:
  - drm/mediatek: dsi: Improves the DSI lane setup robustness
- Patch added:
  - drm/panel: startek-kd070fhfid015: add another init step
  - drm/mediatek: dsi: remove custom init part
- Remove MTK custom init function for the DSI driver to avoid conflict
  with what the DRM APIs provide.
- Link to v7: https://lore.kernel.org/r/20231023-display-support-v7-0-6703f3e26831@baylibre.com

Changes in v7:
- Improve defconfig commit description
- Add comment in the DTS about pins clash with ethernet and HDMI (DPI0)
- Link to v6: https://lore.kernel.org/r/20231023-display-support-v6-0-c6af4f34f4d8@baylibre.com

Changes in v6:
- Fix DPI binding: remove the duplicated property (power-domains).
- Squash defconfig commit.
- Fix the property order in the DTS.
- Link to v5: https://lore.kernel.org/r/20231023-display-support-v5-0-3905f1e4b835@baylibre.com

Changes in v5:
- Patch merged, then removed from the series:
  - dt-bindings: display: mediatek: rdma: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: ovl: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: gamma: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: dpi: add compatible for MT8365
  - dt-bindings: display: mediatek: dsi: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: dither: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: color: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: ccorr: add compatible for MT8365 SoC
  - dt-bindings: display: mediatek: aal: add compatible for MT8365 SoC
- Enable STARTEK KD070FHFID015 panel in the defconfig.
- Rebase on top of 6.13-rc6.
- Link to v4: https://lore.kernel.org/all/20231023-display-support-v4-0-ed82eb168fb1@baylibre.com

Changes in v4:
- Patch merged, then removed from the series:
  - dt-bindings: display: mediatek: dpi: add power-domains property
  - dt-bindings: pwm: mediatek,pwm-disp: add compatible for mt8365 SoC
  - clk: mediatek: mt8365-mm: fix DPI0 parent
- Remove mediatek,mt8365-dpi compatible from mtk_drm_drv.c because it
  use the mt8192's data. It's a miss.
- Add MT8365 OF graphs support, remove the hardcoded display path and
  rebase on top of Angelo's series [1].
- Link to v3: https://lore.kernel.org/r/20231023-display-support-v3-0-53388f3ed34b@baylibre.com

Changes in v3:
- Drop "drm/mediatek: add mt8365 dpi support" because it's the same
  config as mt8192 SoC
- Drop "dt-bindings: pwm: mediatek,pwm-disp: add power-domains property"
  because an equivalent patch has been merge already.
- Add DPI clock fix in a separate commit.
- Improve DTS(I) readability.
- Link to v2: https://lore.kernel.org/r/20231023-display-support-v2-0-33ce8864b227@baylibre.com

Changes in v2:
- s/binding/compatible/ in commit messages/titles.
- Improve commit messages as Conor suggest.
- pwm-disp: Set power domain property for MT8365. This one is optionnal
  and can be used for other SoC.
- Fix mediatek,dsi.yaml issue.
- Remove the extra clock in the DPI node/driver and fix the dpi clock
  parenting to be consistent with the DPI clock assignement.
- Link to v1: https://lore.kernel.org/r/20231023-display-support-v1-0-5c860ed5c33b@baylibre.com

[1] https://lore.kernel.org/lkml/20240516081104.83458-1-angelogioacchino.delregno@collabora.com/

---
Alexandre Mergnat (3):
      arm64: defconfig: enable display support for mt8365-evk
      drm/panel: startek-kd070fhfid015: add another init step
      drm/mediatek: dsi: remove custom init part

 arch/arm64/configs/defconfig                       |  2 ++
 drivers/gpu/drm/mediatek/mtk_ddp_comp.c            |  2 --
 drivers/gpu/drm/mediatek/mtk_disp_drv.h            |  2 --
 drivers/gpu/drm/mediatek/mtk_dsi.c                 | 16 --------------
 .../gpu/drm/panel/panel-startek-kd070fhfid015.c    | 25 +++++++++++++---------
 5 files changed, 17 insertions(+), 30 deletions(-)
---
base-commit: 72e8ab284ff34785ec292f79610de5fcf3825b32
change-id: 20231023-display-support-c6418b30e419

Best regards,
-- 
Alexandre Mergnat <amergnat@baylibre.com>