[PATCH v3 0/6] media: ti, cdns: Multiple pixel support and misc fixes

[Jai Luthra]

Hi,

The first four patches in this series are miscellaneous fixes and
improvements in the Cadence and TI CSI-RX drivers around probing, fwnode
and link creation.

The last two patches add support for transmitting multiple pixels per
clock on the internal bus between Cadence CSI-RX bridge and TI CSI-RX
wrapper. As this internal bus is 32-bit wide, the maximum number of
pixels that can be transmitted per cycle depend upon the format's bit
width. Secondly, the downstream element must support unpacking of
multiple pixels.

Thus we export a module function that can be used by the downstream
driver to negotiate the pixels per cycle on the output pixel stream of
the Cadence bridge.

Signed-off-by: Jai Luthra <jai.luthra@xxxxxxxxxxxxxxxx>
---
Changes in v3:
- Move cdns-csi2rx header to include/media
- Export symbol from cdns-csi2rx.c to be used only through
  the j721e-csi2rx.c module namespace
- Other minor fixes suggested by Sakari
- Add Abhilash's T-by tags
- Link to v2: https://lore.kernel.org/r/20250410-probe_fixes-v2-0-801bc6eebdea@xxxxxxxxxxxxxxxx

Changes in v2:
- Rebase on v6.15-rc1
- Fix lkp warnings in PATCH 5/6 missing header for FIELD_PREP
- Add R-By tags from Devarsh and Changhuang
- Link to v1: https://lore.kernel.org/r/20250324-probe_fixes-v1-0-5cd5b9e1cfac@xxxxxxxxxxxxxxxx

---
Jai Luthra (6):
      media: ti: j721e-csi2rx: Use devm_of_platform_populate
      media: ti: j721e-csi2rx: Use fwnode_get_named_child_node
      media: ti: j721e-csi2rx: Fix source subdev link creation
      media: cadence: csi2rx: Implement get_fwnode_pad op
      media: cadence: cdns-csi2rx: Support multiple pixels per clock cycle
      media: ti: j721e-csi2rx: Support multiple pixels per clock

 MAINTAINERS                                        |  1 +
 drivers/media/platform/cadence/cdns-csi2rx.c       | 74 ++++++++++++++++------
 drivers/media/platform/ti/Kconfig                  |  3 +-
 .../media/platform/ti/j721e-csi2rx/j721e-csi2rx.c  | 65 ++++++++++++++-----
 include/media/cadence/cdns-csi2rx.h                | 19 ++++++
 5 files changed, 127 insertions(+), 35 deletions(-)
---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250314-probe_fixes-7e0ec33c7fee

Best regards,
-- 
Jai Luthra <jai.luthra@xxxxxxxxxxxxxxxx>