[v16,00/16] drm: Add Samsung MIPI DSIM bridge
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Message ID 20230308163953.28506-1-jagan@amarulasolutions.com
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  • drm: Add Samsung MIPI DSIM bridge
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Jagan Teki March 8, 2023, 4:39 p.m. UTC 
This series supports common bridge support for Samsung MIPI DSIM
which is used in Exynos and i.MX8MM SoC's.

The final bridge supports both the Exynos and i.MX8M Mini/Nano/Plus.

Inki Dae: please note that this series added on top of exynos-drm-next
since few exynos dsi changes are not been part of drm-misc-next.
Request you to pick these via exynos-drm-next, or let me know if you
have any comments?

Patch 0001 - 0002: find child DSI bridge and panel

Patch 0003 - 0004: optional PHY, PMS_P offset

Patch 0005       : introduce hw_type

Patch 0006	 : fixing host init

Patch 0007	 : atomic_check

Patch 0008	 : input_bus_flags

Patch 0009	 : atomic_get_input_bus_fmts

Patch 0010 - 0011: component vs bridge

Patch 0012	 : DSIM bridge

Patch 0013 - 0014: i.MX8M Mini/Nano

Patch 0015 - 0016: i.MX8M Plus

Changes for v16:
- collect RB from Marek V
- collect TB from Marek S 
- fix multiline comment
- fix explicit bridge detach
- properly handle TE_GPIO

Changes for v15:
- drop drm_of helpers
- re-added find DSI bridge/Panel helper in dsim
- collect RB from Marek V
- fixed leading underscore in function names
- commit messages updated
- rebased on exynos-drm-next

Changes for v13:
- remove devm call for DSI panel or bridge finding
- rebased on drm-misc-next

Changes for v12:
- collect RB from Marek V
- add te_irq_handler hook
- fix comments from Marek V
- update atomic_get_input_bus_fmts logic

Changes for v11:
- collect RB from Frieder Schrempf
- collect ACK from Rob
- collect ACK from Robert
- fix BIT macro replacements
- fix checkpatch --strict warnings
- fix unneeded commit text
- drop extra lines

Changes for v10:
- rebase on drm-misc-next
- add drm_of_dsi_find_panel_or_bridge
- add devm_drm_of_dsi_get_bridge
- fix host initialization (Thanks to Marek Szyprowski)
- rearrange the tiny patches for easy to review
- update simple names for enum hw_type
- add is_hw_exynos macro
- rework on commit messages

Changes for v9:
- rebase on drm-misc-next
- drop drm bridge attach fix for Exynos
- added prepare_prev_first flag
- added pre_enable_prev_first flag
- fix bridge chain order for exynos
- added fix for Exynos host init for first DSI transfer
- added MEDIA_BUS_FMT_FIXED
- return MEDIA_BUS_FMT_RGB888_1X24 output_fmt if supported output_fmt
  list is unsupported.
- added MEDIA_BUS_FMT_YUYV10_1X20
- added MEDIA_BUS_FMT_YUYV12_1X24

Changes for v8:
* fixed comment lines
* fixed commit messages
* fixed video mode bits
* collect Marek Ack
* fixed video mode bit names
* update input formats logic
* added imx8mplus support

Changes for v7:
* fix the drm bridge attach chain for exynos drm dsi driver
* fix the hw_type checking logic

Changes for v6:
* handle previous bridge for exynos dsi while attaching bridge 

Changes for v5:
* bridge changes to support multi-arch
* updated and clear commit messages
* add hw_type via plat data
* removed unneeded quirk
* rebased on linux-next

Changes for v4:
* include Inki Dae in MAINTAINERS
* remove dsi_driver probe in exynos_drm_drv to support multi-arch build
* update init handling to ensure host init done on first cmd transfer

Changes for v3:
* fix the mult-arch build
* fix dsi host init
* updated commit messages

Changes for v2:
* fix bridge handling
* fix dsi host init
* correct the commit messages

Tested in Engicam i.Core MX8M Mini SoM.

Repo:
https://github.com/openedev/kernel/tree/imx8mm-dsi-v16

v15:
https://lore.kernel.org/all/20230303145138.29233-1-jagan@amarulasolutions.com/

Any inputs?
Jagan.

Jagan Teki (14):
  drm: exynos: dsi: Drop explicit call to bridge detach
  drm: exynos: dsi: Lookup OF-graph or Child node devices
  drm: exynos: dsi: Mark PHY as optional
  drm: exynos: dsi: Add platform PLL_P (PMS_P) offset
  drm: exynos: dsi: Introduce hw_type platform data
  drm: exynos: dsi: Add atomic check
  drm: exynos: dsi: Add input_bus_flags
  drm: exynos: dsi: Add atomic_get_input_bus_fmts
  drm: exynos: dsi: Consolidate component and bridge
  drm: exynos: dsi: Add host helper for te_irq_handler
  drm: bridge: Generalize Exynos-DSI driver into a Samsung DSIM bridge
  dt-bindings: display: exynos: dsim: Add NXP i.MX8M Mini/Nano support
  drm: bridge: samsung-dsim: Add i.MX8M Mini/Nano support
  dt-bindings: display: exynos: dsim: Add NXP i.MX8M Plus support

Marek Szyprowski (1):
  drm: exynos: dsi: Handle proper host initialization

Marek Vasut (1):
  drm: bridge: samsung-dsim: Add i.MX8M Plus support

 .../bindings/display/exynos/exynos_dsim.txt   |    2 +
 MAINTAINERS                                   |    9 +
 drivers/gpu/drm/bridge/Kconfig                |   12 +
 drivers/gpu/drm/bridge/Makefile               |    1 +
 drivers/gpu/drm/bridge/samsung-dsim.c         | 1967 +++++++++++++++++
 drivers/gpu/drm/exynos/Kconfig                |    1 +
 drivers/gpu/drm/exynos/exynos_drm_dsi.c       | 1813 +--------------
 include/drm/bridge/samsung-dsim.h             |  115 +
 8 files changed, 2191 insertions(+), 1729 deletions(-)
 create mode 100644 drivers/gpu/drm/bridge/samsung-dsim.c
 create mode 100644 include/drm/bridge/samsung-dsim.h