linux-kernel - [PATCH v2 0/5] media: qcom: camss: Add SM8750 support

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Message-Id: <20260113-sm8750-camss-v2-0-e5487b98eada@oss.qualcomm.com>
Date: Tue, 13 Jan 2026 02:28:26 -0800
From: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
To: Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        jeyaprakash.soundrapandian@....qualcomm.com,
        Vijay Kumar Tumati <vijay.tumati@....qualcomm.com>,
        Hangxiang Ma <hangxiang.ma@....qualcomm.com>,
        Atiya Kailany <atiya.kailany@....qualcomm.com>
Subject: [PATCH v2 0/5] media: qcom: camss: Add SM8750 support

Add support for the RDI only CAMSS camera driver on SM8750. Enabling
RDI path involves adding the support for a set of CSIPHY, CSID and TFE
modules, with each TFE having multiple RDI ports. This hardware
architecture requires 'qdss_debug_xo' clock for CAMNOC to be functional.

SM8750 camera subsystem provides

- 3 x VFE (Video Front End), 5 RDI per VFE
- 2 x VFE Lite, 4 RDI per VFE Lite
- 3 x CSID (CSI Decoder)
- 2 x CSID Lite
- 6 x CSIPHY (CSI Physical Layer)
- 2 x ICP (Image Control Processor)
- 1 x IPE (Image Processing Engine)
- 2 x JPEG DMA & Downscaler
- 2 x JPEG Encoder
- 1 x OFE (Offline Front End)
- 5 x RT CDM (Camera Data Mover)
- 3 x TPG (Test Pattern Generator)

This series has been tested using the following commands with a
downstream driver for S5KJN5 sensor.

- media-ctl --reset
- media-ctl -V '"msm_csiphy2":0[fmt:SGBRG10/4096x3072]'
- media-ctl -V '"msm_csid0":0[fmt:SGBRG10/4096x3072]'
- media-ctl -V '"msm_vfe0_rdi0":0[fmt:SGBRG10/4096x3072]'
- media-ctl -l '"msm_csiphy2":1->"msm_csid0":0[1]'
- media-ctl -l '"msm_csid0":1->"msm_vfe0_rdi0":0[1]'
- yavta  --capture=20 -I -n 5 -f SGBRG10P -s 4096x3072 -F  /dev/video0

Dependencies:
- https://lore.kernel.org/all/20260112-camss-extended-csiphy-macro-v2-1-ee7342f2aaf5@oss.qualcomm.com/
- https://lore.kernel.org/linux-arm-msm/20251114082649.4240-1-wenmeng.liu@oss.qualcomm.com/
- https://lore.kernel.org/all/20260112-kaanapali-camss-v12-0-15b7af73401e@oss.qualcomm.com/

Signed-off-by: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
---
Changes in v2:
- Update binding commit message and its description. Meanwhile, modify some
  property names to align with previous generations. - Krzysztof
- Update the vdd supply names with 0p88 to 0p9 in binding to keep such name
  style consistency - Krzysztof/Vladimir
- Add missing Kaanapali dependency - Krzysztof
- Add csiphy macro and new regulator interface dependency - bod
- Add regulator current in csiphy resource due to interface changed - bod
- Make csid board level code style consistent and add comments to explain
  the differences between csid full and lite configurations. - bod
- Remove reduandant initialization for empty set in csid and vfe - bod
- Remove DTS patch due to conflict with camcc dependency. Will post it
  as an individual series.
- Update vfe commit message as rename work happens in Kaanapali series.
- Add module descriptions in binding commit message and cover letter.
- Link to v1: https://lore.kernel.org/r/20251126-add-support-for-camss-on-sm8750-v1-0-646fee2eb720@oss.qualcomm.com

---
Hangxiang Ma (5):
      media: dt-bindings: Add CAMSS device for SM8750
      media: qcom: camss: Add SM8750 compatible camss driver
      media: qcom: camss: csiphy: Add support for v2.3.0 two-phase CSIPHY
      media: qcom: camss: csid: Add support for CSID 980
      media: qcom: camss: vfe: Add support for VFE 980

 .../bindings/media/qcom,sm8750-camss.yaml          | 663 +++++++++++++++++++++
 drivers/media/platform/qcom/camss/Makefile         |   1 +
 drivers/media/platform/qcom/camss/camss-csid-980.c | 442 ++++++++++++++
 drivers/media/platform/qcom/camss/camss-csid.h     |   1 +
 .../platform/qcom/camss/camss-csiphy-3ph-1-0.c     |   5 +-
 drivers/media/platform/qcom/camss/camss-vfe-gen4.c |  10 +-
 drivers/media/platform/qcom/camss/camss-vfe.c      |   2 +
 drivers/media/platform/qcom/camss/camss.c          | 357 +++++++++++
 drivers/media/platform/qcom/camss/camss.h          |   1 +
 9 files changed, 1478 insertions(+), 4 deletions(-)
---
base-commit: 31d167f54de93f14fa8e4bc6cbc4adaf7019fd94
change-id: 20260113-sm8750-camss-36b630cb901d
prerequisite-change-id: 20260112-kaanapali-camss-73772d44eff7:v12
prerequisite-patch-id: c3758c408ebf6ab407b1977ccd51cd7179316c73
prerequisite-patch-id: 7bb9332e44b93bb9f063bfa0626dd38ff450aaa8
prerequisite-patch-id: eb308d8bf8e0f942d5a0dd1826cf3e1963b05378
prerequisite-patch-id: 8c62245a3b0a2527d4ddf47438926d3b1fe3ff41
prerequisite-patch-id: 36bed25998858225c8e1d6beeb977236cc1b76d6
prerequisite-change-id: 20260111-camss-extended-csiphy-macro-486b9f3b950f:v2
prerequisite-patch-id: 27c2ef96f0e747ec6b4bcf316d8802356e4cc3f4
prerequisite-message-id: 20251114082649.4240-1-wenmeng.liu@....qualcomm.com
prerequisite-patch-id: affdca1f0af770b95444f99c203d291bcc41ec9c

Best regards,
-- 
Hangxiang Ma <hangxiang.ma@....qualcomm.com>