[PATCH v2 0/3] Add support for QC08C format in iris driver

[Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>]

Add support for the QC08C color format in both the encoder and decoder 
paths of the iris driver. The changes include:

- Adding QC08C format handling in the driver for both encoding and 
decoding.
- Updating format enumeration to properly return supported formats.
- Ensuring the correct HFI format is set for firmware communication.
-Making all related changes required for seamless integration of QC08C 
support.

The changes have been validated using v4l2-ctl, compliance, and GStreamer (GST) tests.
Both GST and v4l2-ctl tests were performed using the NV12 format, as 
these clients do not support the QCOM-specific QC08C format, and all 
tests passed successfully.

During v4l2-ctl testing, a regression was observed when using the NV12 
color format after adding QC08C support. A fix for this regression has 
also been posted [1].

[1]: https://lore.kernel.org/linux-media/20250918103235.4066441-1-dikshita.agarwal@oss.qualcomm.com/T/#u 

Changes in v2:
- Added separate patch to add support for HFI_PROP_OPB_ENABLE (Bryan)
- Updated commit text to indicate QC08C is NV12 with UBWC compression (Bryan, Dmitry)
- Renamed IRIS_FMT_UBWC to IRIS_FMT_QC08C (Dmitry)
- Link to v1: https://lore.kernel.org/r/20250919-video-iris-ubwc-enable-v1-0-000d11edafd8@oss.qualcomm.com

Signed-off-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
---
Dikshita Agarwal (3):
      media: iris: Add support for HFI_PROP_OPB_ENABLE to control split mode
      media: iris: Add support for QC08C format for decoder
      media: iris: Add support for QC08C format for encoder

 drivers/media/platform/qcom/iris/iris_buffer.c     | 17 ++++--
 .../platform/qcom/iris/iris_hfi_gen1_command.c     | 15 ++++--
 .../platform/qcom/iris/iris_hfi_gen2_command.c     | 21 +++++++-
 .../platform/qcom/iris/iris_hfi_gen2_defines.h     |  1 +
 drivers/media/platform/qcom/iris/iris_instance.h   |  7 ++-
 .../media/platform/qcom/iris/iris_platform_gen2.c  |  1 +
 drivers/media/platform/qcom/iris/iris_utils.c      |  3 +-
 drivers/media/platform/qcom/iris/iris_vdec.c       | 61 ++++++++++++++++++----
 drivers/media/platform/qcom/iris/iris_venc.c       | 59 +++++++++++++++++----
 9 files changed, 152 insertions(+), 33 deletions(-)
---
base-commit: 40b7a19f321e65789612ebaca966472055dab48c
change-id: 20250918-video-iris-ubwc-enable-87eac6f41fa4

Best regards,
-- 
Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>