linux-kernel - [PATCH 0/2] Add support for QC08C format in iris driver

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Message-Id: <20250919-video-iris-ubwc-enable-v1-0-000d11edafd8@oss.qualcomm.com>
Date: Fri, 19 Sep 2025 21:17:15 +0530
From: Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
To: Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bod@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
Subject: [PATCH 0/2] Add support for QC08C format in iris driver

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 

Signed-off-by: Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
---
Dikshita Agarwal (2):
      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@....qualcomm.com>