[v16,00/16] drm: Add Samsung MIPI DSIM bridge

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