[PATCH 0/6] media: qcom: camss: Add C-PHY support for sa8775p, sa8300 and sm8250

[Anusha Arun Nandi]

This series extends the Qualcomm CAMSS (Camera Subsystem) C-PHY support to
the Gen3 platforms, adding C-PHY mode configuration for sa8775p
(CAMSS_8775P) and sa8300 (CAMSS_8300), along with a dynamic, data-rate
specific C-PHY register programming mechanism.

It builds on David Heidelberg's C-PHY enablement work for Qualcomm
platforms:

  - Program the common control registers and prepare the CSID RX path
    to select between C-PHY and D-PHY for Gen3.
  - Add the sa8775p C-PHY 3ph lane register table and wire it up for
    sa8775p and sa8300.
  - Introduce a data-rate selection mechanism so the C-PHY PHY register
    overrides vary with the negotiated link (symbol) data rate, with
    tables for sa8775p/8300 (1.5/1.7/2.5/3.5/4.5 GSpS) and sm8250
    (2.5/3.5/4.5 GSpS).
  - Validate that the local (CSIPHY) and remote (sensor) endpoint
    bus-types agree, catching C-PHY/D-PHY mismatches early at probe.

Rebased on David Heidelberg's C-PHY series (v9):
  https://lore.kernel.org/all/20260617-qcom-cphy-v9-0-83da8a8e4e44@xxxxxxx/

Tested on sm8250, sa8775p and sa8300, on top of the v4 revision of that series:
  https://lore.kernel.org/all/20260301-qcom-cphy-v4-0-e53316d2cc65@xxxxxxx/

Anusha Arun Nandi (3):
  media: qcom: camss: Add sa8300 C-PHY 3ph lane config
  media: qcom: camss: Dynamic data-rate specific C-PHY register settings
  media: qcom: camss: validate local/remote endpoint bus-type

Jigarkumar Zala (3):
  media: qcom: camss: Program CSIPHY common control registers
  media: qcom: camss: Prepare CSID for C-PHY support in gen3
  media: qcom: camss: Add sa8775p C-PHY 3ph lane config

 .../platform/qcom/camss/camss-csid-gen3.c     |   2 +
 .../qcom/camss/camss-csiphy-3ph-1-0.c         | 394 +++++++++++++++++-
 .../media/platform/qcom/camss/camss-csiphy.h  |   6 +
 drivers/media/platform/qcom/camss/camss.c     |  28 +-
 4 files changed, 420 insertions(+), 10 deletions(-)
---
base-commit: 0e35b9b6ec0ffcc5e23cbdec09f5c622ad532b53
change-id: 20251109-qcom-cphy-bb8cbda1c644 

Best regards,
-- 
Anusha Arun Nandi <anusha.nandi@xxxxxxxxxxxxxxxx>