[PATCH 0/4] media: qcom: camss: Add SM8350 CAMSS support

[Vladimir Zapolskiy <vz@kernel.org>]

Add support of the camera subsystem (CAMSS) found on Qualcomm SM8350
SoC containing:
* three CSID and two CSID lite blocks,
* three VFE and two VFE lite blocks.

The SM8350 CSID and VFE block are programmed like on SM8250.

The series depends on the SM8350 camera clock controller support and
on the change from SM8450 CAMSS series, which allows CSI2 PHY devices
without CSIPHY resources:

  https://lore.kernel.org/all/20261104001704.2744766-1-vz@kernel.org/
  https://lore.kernel.org/all/20261026224957.1115370-4-vz@kernel.org/

SM8350 CSIPHYs are described as separate CSI2 PHY devices, and their
support will be added separately along with their connection to
the CAMSS input ports.

Tested on SM8350-HDK with the CSID internal test pattern generator,
the GCC camera HF AXI and the IFE lite AXI clocks are described in the
device tree bindings, but apparently they are not needed to stream
from TPG:

  media-ctl -d /dev/media0 -r
  media-ctl -d /dev/media0 -l '"msm_csid0":1->"msm_vfe0_rdi0":0[1]'
  media-ctl -d /dev/media0 \
      -V '"msm_csid0":0[fmt:SRGGB10_1X10/1920x1080 field:none]'
  media-ctl -d /dev/media0 \
      -V '"msm_vfe0_rdi0":0[fmt:SRGGB10_1X10/1920x1080 field:none]'
  CSID0=$(media-ctl -d /dev/media0 -e msm_csid0)
  VID0=$(media-ctl -d /dev/media0 -e msm_vfe0_video0)
  v4l2-ctl -d $CSID0 -c test_pattern=9
  yavta -B capture-mplane -c10 -n5 -I -f SRGGB10P -s 1920x1080 -F $VID0

Vladimir Zapolskiy (4):
  dt-bindings: media: Add Qualcomm SM8350 CAMSS
  media: qcom: camss: Select Titan 480 CSID offset by VFE type
  media: qcom: camss: Add SM8350 CAMSS support
  arm64: dts: qcom: sm8350: Add CAMSS device tree node

 .../bindings/media/qcom,sm8350-camss.yaml     | 262 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/sm8350.dtsi          | 110 ++++++++
 .../media/platform/qcom/camss/camss-csid.c    |   5 +-
 drivers/media/platform/qcom/camss/camss-vfe.c |   2 +
 drivers/media/platform/qcom/camss/camss.c     | 213 ++++++++++++++
 drivers/media/platform/qcom/camss/camss.h     |   1 +
 6 files changed, 591 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/qcom,sm8350-camss.yaml

-- 
2.51.0