linux-kernel - [PATCH v3 0/7] qcom: qcs8300: Add qcs8300 camss support

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Message-ID: <20250813053724.232494-1-quic_vikramsa@quicinc.com>
Date: Wed, 13 Aug 2025 11:07:17 +0530
From: Vikram Sharma <quic_vikramsa@...cinc.com>
To: <rfoss@...nel.org>, <todor.too@...il.com>, <bryan.odonoghue@...aro.org>,
        <mchehab@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <hverkuil-cisco@...all.nl>,
        <cros-qcom-dts-watchers@...omium.org>, <catalin.marinas@....com>,
        <will@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <quic_vikramsa@...cinc.com>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 0/7] qcom: qcs8300: Add qcs8300 camss support

From: Vikram Sharma <vikramsa@....qualcomm.com>

QCS8300 is a Qualcomm SoC. This series adds bindings and devicetree
and driver changes to bring up CSIPHY, TPG, CSID, VFE/RDI interfaces
in QCS8300.

QCS8300 provides
- 2 x VFE, 3 RDI per VFE
- 5 x VFE Lite, 6 RDI per VFE
- 2 x CSID
- 5 x CSID Lite
- 3 x TPG
- 3 x CSIPHY

Changes in v3 compared to v2:
- Bindings and Device Tree: Reordered csid_wrapper to appear first in the
  register list (as suggested by Bryan).
- CSIPHY Driver: Updated the commit message for the CSIPHY patch.
- VFE/CSID Resource Data: Reused the same resource data as sa8775p for VFE
  and CSID.
- Patch Series Order: Rearranged the patch sequence and moved the DTSI
  update to the final patch in the series.
- Code Cleanup: Removed duplicate data structures and reused existing
  ones.
- Optimization: Simplified and optimized conditional checks.
- Link to v2:
  https://lore.kernel.org/linux-arm-msm/20250711131134.215382-1-quic_vikramsa@quicinc.com/

Changes compared to v1:
- Changed the order for register entries in bindings - Krzysztof
- Changed the naming for interrupts for consistency - Krzysztof
- Combined separate series for driver and dtsi into one.
- Rebased on top of latest version of sa8775p camss patches.
- Link to v1:
  Driver: https://lore.kernel.org/all/20250214095611.2498950-1-quic_vikramsa@quicinc.com
  DTSI: https://lore.kernel.org/all/20250214094747.2483058-1-quic_vikramsa@quicinc.com  

Dependencies:
https://lore.kernel.org/linux-arm-msm/20250807121105.710072-1-quic_vikramsa@quicinc.com/

We have tested this on qcs8300-ride board with 'Test Pattern Generator'
https://lore.kernel.org/all/20250717-qcs8300_tpg-v2-1-0946c69c2c8b@quicinc.com/

A rebased version of the TPG driver, built on top of this series, will be
shared in a follow-up post.

Used following tools for the sanity check of these changes.
- make CHECK_DTBS=y W=1 DT_SCHEMA_FILES=media/qcom,qcs8300-camss.yaml
  qcom/qcs8300-ride.dtb
- make DT_CHECKER_FLAGS=-m W=1 DT_SCHEMA_FILES=media/qcom,qcs8300-camss.yaml
  dt_binding_check
- Smatch: make CHECK="smatch --full-path" M=drivers/media/platform/qcom/camss/
- Sparse: make C=2 M=drivers/media/platform/qcom/camss/
- make -j32 W=1
- checkpatch.pl

Vikram Sharma (7):
  media: dt-bindings: Add qcom,qcs8300-camss compatible
  media: qcom: camss: Add qcs8300 compatible
  media: qcom: camss: Add CSIPHY support for QCS8300
  media: qcom: camss: enable csid 690 for qcs8300
  media: qcom: camss: enable vfe 690 for qcs8300
  media: qcom: camss: Enumerate resources for QCS8300
  arm64: dts: qcom: qcs8300: Add support for camss

 .../bindings/media/qcom,qcs8300-camss.yaml    | 336 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/qcs8300.dtsi         | 171 +++++++++
 .../platform/qcom/camss/camss-csid-gen3.c     |   3 +-
 .../qcom/camss/camss-csiphy-3ph-1-0.c         |   2 +
 .../platform/qcom/camss/camss-vfe-gen3.c      |   3 +-
 drivers/media/platform/qcom/camss/camss-vfe.c |   2 +
 drivers/media/platform/qcom/camss/camss.c     |  85 +++++
 drivers/media/platform/qcom/camss/camss.h     |   1 +
 8 files changed, 601 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/qcom,qcs8300-camss.yaml

Signed-off-by: Vikram Sharma <quic_vikramsa@...cinc.com>
-- 
2.25.1