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[v2,00/15] media: rcar: Streams support

Message ID 20250326-rcar-streams-v2-0-d0d7002c641f@ideasonboard.com (mailing list archive)
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Series media: rcar: Streams support | expand

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Tomi Valkeinen March 26, 2025, 11:09 a.m. UTC 
Add streams support to Renesas rcar platform driver.

The series attempts to keep compatibility with the current upstream.
However, in upstream there's some kind of custom multi-stream support
implemented to the rcar driver, which breaks at patch "media: rcar-csi2:
Simplify rcsi2_calc_mbps()".

The behavior should not change when using a single stream.

Testing is problematic, as the only way currently for me to get multiple
streams is by using the GMSL2 deserializer add-on board with GMSL2
serializers. These are not supported in upstream. If someone has the
hardware and wants to test, I can share the very-WIP branch that
contains the missing pieces.

 Tomi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
---
Changes in v2:
- Rebased on top of latest upstream, and updated the dependencies to
  match the latest serieses sent.
- Add new patch "media: rcar-csi2: Use the pad version of v4l2_get_link_freq()"
- Drop "media: rcar-csi2: Fix typo" (it was not a typo)
- Update the code in calc_mbps(). The previous method relied on
  V4L2_CID_LINK_FREQ, but that's not available if the link-freq is
  provided via get_mbus_config().
- Dropped dependencies to Niklas' old series which doesn't apply
  cleanly. It's needed for multi-stream, but not for the current
  upstream which only has a single stream use case.
- Link to v1: https://lore.kernel.org/r/20250219-rcar-streams-v1-0-f1b93e370aab@ideasonboard.com

---
Tomi Valkeinen (15):
      media: rcar-csi2: Use the pad version of v4l2_get_link_freq()
      media: rcar-isp: Improve ISPPROCMODE_DT_PROC_MODE_VC
      media: rcar-isp: Move {enable|disable}_streams() calls
      media: rcar-csi2: Move {enable|disable}_streams() calls
      media: rcar-csi2: Move rcar2_calc_mbps()
      media: rcar-csi2: Simplify rcsi2_calc_mbps()
      media: rcar-csi2: Optimize rcsi2_calc_mbps()
      media: rcar-csi2: Switch to Streams API
      media: rcar-isp: Switch to Streams API
      media: rcar-csi2: Add .get_frame_desc op
      media: rcar-isp: Call get_frame_desc to find out VC & DT
      media: rcar-csi2: Add more stream support to rcsi2_calc_mbps()
      media: rcar-csi2: Call get_frame_desc to find out VC & DT (Gen3)
      media: rcar-csi2: Add full streams support
      media: rcar-isp: Add full streams support

 drivers/media/platform/renesas/rcar-csi2.c | 426 ++++++++++++++++++++---------
 drivers/media/platform/renesas/rcar-isp.c  | 228 +++++++++++----
 2 files changed, 479 insertions(+), 175 deletions(-)
---
base-commit: f2151613e040973c868d28c8b00885dfab69eb75
change-id: 20250219-rcar-streams-1fdea8860e5e
prerequisite-message-id: <20250210175615.1686529-1-niklas.soderlund+renesas@ragnatech.se>
prerequisite-patch-id: a4aa6a184c6a21fc4536c11e14d9b5cc61f13346
prerequisite-patch-id: 1b0091875529d392b142814005baa38b2ef77f98
prerequisite-patch-id: 4c960ae93b1e663b11194903ed1810e0ed1e4f59
prerequisite-patch-id: a5641e1dcad0f39baef8996b6731a471046f18f9
prerequisite-patch-id: 481317ba4b987cbb069c31f3372686a59c0fcb67
prerequisite-change-id: 20250324-rcar-fix-raw-c7967ff85d3e:v1
prerequisite-patch-id: b21819aa41855942f3474ff8135daccc9c7c652d
prerequisite-patch-id: af375b9da2a977ea10d1fee2d500de5a2dbe53dd
prerequisite-patch-id: 2278b5cd1de5008ef35f9c9f34e3a53bb98147da
prerequisite-change-id: 20250218-frame-desc-passthrough-66805e413974:v4
prerequisite-patch-id: bce4a915a29a64f88ed1bb600c08df37d2ba20c6
prerequisite-patch-id: 69b75e7dad9ced905cb39a72f18bebbf3e8f998a
prerequisite-patch-id: 58463f6944c76acd6cf203b14a2836cdb0db2461

Best regards,