[v9,0/4] media: qcom: camss: Add sc7280 support

Message

Vikram Sharma Dec. 17, 2024, 1:39 p.m. UTC

SC7280 is a Qualcomm SoC. This series adds support to bring up the CSIPHY,
CSID, VFE/RDI interfaces in SC7280.

SC7280 provides

- 3 x VFE, 3 RDI per VFE
- 2 x VFE Lite, 4 RDI per VFE
- 3 x CSID
- 2 x CSID Lite
- 5 x CSI PHY

We have tested this on qcs6490-rb3gen2-vision-mezzanine board having IMX577
sensor. Verified both TPG and IMX577 sensor.

Used following tools for the sanity check of these changes.

- make CHECK_DTBS=y W=1 DT_SCHEMA_FILES=media/qcom,sc7280-camss.yaml
qcom/qcs6490-rb3gen2-vision-mezzanine.dtb
- make DT_CHECKER_FLAGS=-m W=1
DT_SCHEMA_FILES=media/qcom,sc7280-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/
- coccicheck : make coccicheck M=drivers/media/platform/qcom/camss/
- make -j32 W=1
- ./scripts/checkpatch.pl
 
Changes in V9:
- Removed GCC_CAMERA_AHB_CLK as its always enabled.
- Added GCC_CAMERA_SF_AXI_CLK.
- Renamed gcc_cam_hf_axi to gcc_axi_hf.
- V8 had 5 patches and V9 have 4 patches.
- First 3 patches of V8 are already promoted to linux-next
i.e  
  media: dt-bindings: Add qcom,sc7280-camss
  media: qcom: camss: Sort camss version enums and compatible strings
  media: qcom: camss: Add support for camss driver on sc7280
- 2 new patches are added to handle new comments from Konrad on
  "Patch v8 4/5 arm64: dts: qcom: sc7280: Add support for camss" 
  1 of the 2 new patches make changes in yaml and other one is making
  change in camss driver to handle new comments in dtsi.
- for "Patch v8 4/5 arm64: dts: qcom: sc7280: Add support for camss" I got
  comments from Konrad to make changes for clock names so I had to make
  respective changes in "bindings/media/qcom,sc7280-camss.yaml". As dtsi
  changes are not merged yet, so there is no issues with backward
  compatibility and I am assuming this should be acceptable.
  
Changes in V8:
- Changed node name from camss to isp.
- Added QCOM_ICC_TAG_ACTIVE_ONLY and QCOM_ICC_TAG_ALWAYS tags for
  interconnects. 
- Added blank lines when required.
- Modified power-domain-names from horizontal to vertical list.
- Sorted pinctrl nodes based on gpio index.
- Link to v7: https://lore.kernel.org/linux-arm-msm/[e-mail]/

Changes in V7:
- Changed unit address for camss in documention and dts.
- Added avdd-supply and dvdd-supply for sensor.
- Changed reg/clocks/interrupts name for vfe_lite and csid_lite.
- Link to v6: https://lore.kernel.org/linux-arm-msm/[e-mail]/

Changes in V6:
- Changed order of properties in Documentation [PATCH 1/5].
- Updated description for ports in Documentaion [PATCH 1/5].
- Moved regulators from csid to csiphy [PATCH 3/5].
- Link to v5: https://lore.kernel.org/linux-arm-msm/[e-mail]/ 

Changes in V5:
- Updated Commit text for [PATCH v5 1/6].
- Moved reg after compatible string.
- Renamed csi'x' clocks to vfe'x'_csid
- Removed [PATCH v4 4/6] and raised a seprate series for this one.
- Moved gpio states to mezzanine dtso.
- Added more clock levels to address TPG related issues.
- Renamed power-domains-names -> power-domain-names. 
- Link to v4: https://lore.kernel.org/linux-arm-msm/[e-mail]/ 

Changes in V4:
- V3 had 8 patches and V4 is reduced to 6.
- Removed [Patch v3 2/8] as binding change is not required for dtso.
- Removed [Patch v3 3/8] as the fix is already taken care in latest
  kernel tip. 
- Updated alignment for dtsi and dt-bindings.
- Adding qcs6490-rb3gen2-vision-mezzanine as overlay. 
- Link to v3: https://lore.kernel.org/linux-arm-msm/[e-mail]/

Changes in V3:
- Added missed subject line for cover letter of V2.
- Updated Alignment, indentation and properties order.
- edit commit text for [PATCH 02/10] and [PATCH 03/10].
- Refactor camss_link_entities.
- Removed camcc enablement changes as it already done.
- Link to v2: https://lore.kernel.org/linux-arm-msm/2024[e-mail]/

Changes in V2:
- Improved indentation/formatting.
- Removed _src clocks and misleading code comments.
- Added name fields for power domains and csid register offset in DTSI.
- Dropped minItems field from YAML file.
- Listed changes in alphabetical order.
- Updated description and commit text to reflect changes
- Changed the compatible string from imx412 to imx577.
- Added board-specific enablement changes in the newly created vision
  board DTSI file.
- Fixed bug encountered during testing.
- Moved logically independent changes to a new/seprate patch.
- Removed cci0 as no sensor is on this port and MCLK2, which was a
  copy-paste error from the RB5 board reference.
- Added power rails, referencing the RB5 board.
- Discarded Patch 5/6 completely (not required).
- Removed unused enums.
- Link to v1: https://lore.kernel.org/linux-arm-msm/[e-mail]/

Signed-off-by: Vikram Sharma <[e-mail]>

Vikram Sharma (4):
  media: dt-bindings: update clocks for sc7280-camss
  media: qcom: camss: update clock names for sc7280
  arm64: dts: qcom: sc7280: Add support for camss
  arm64: dts: qcom: qcs6490-rb3gen2-vision-mezzanine: Add vision
    mezzanine

 .../bindings/media/qcom,sc7280-camss.yaml     |  10 +-
 arch/arm64/boot/dts/qcom/Makefile             |   4 +
 .../qcs6490-rb3gen2-vision-mezzanine.dtso     | 109 +++++++++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi          | 178 ++++++++++++++++++
 drivers/media/platform/qcom/camss/camss.c     |  15 +-
 5 files changed, 306 insertions(+), 10 deletions(-)
 create mode 100644 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-vision-mezzanine.dtso