linux-kernel - [PATCH 0/6] media: ti, cdns: Multiple pixel support and misc fixes

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Message-Id: <20250324-probe_fixes-v1-0-5cd5b9e1cfac@ideasonboard.com>
Date: Mon, 24 Mar 2025 17:31:36 +0530
From: Jai Luthra <jai.luthra@...asonboard.com>
To: Jai Luthra <jai.luthra@...ux.dev>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...all.nl>, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>
Cc: Devarsh Thakkar <devarsht@...com>, 
 Rishikesh Donadkar <r-donadkar@...com>, Vaishnav Achath <vaishnav.a@...com>, 
 Changhuang Liang <changhuang.liang@...rfivetech.com>, 
 linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Jai Luthra <jai.luthra@...asonboard.com>, stable@...r.kernel.org
Subject: [PATCH 0/6] media: ti, cdns: Multiple pixel support and misc fixes

Hi,

The first four patches in this series are miscellaneous fixes and
improvements in the Cadence and TI CSI-RX drivers around probing, fwnode
and link creation.

The last two patches add support for transmitting multiple pixels per
clock on the internal bus between Cadence CSI-RX bridge and TI CSI-RX
wrapper. As this internal bus is 32-bit wide, the maximum number of
pixels that can be transmitted per cycle depend upon the format's bit
width. Secondly, the downstream element must support unpacking of
multiple pixels.

Thus we export a module function that can be used by the downstream
driver to negotiate the pixels per cycle on the output pixel stream of
the Cadence bridge.

Signed-off-by: Jai Luthra <jai.luthra@...asonboard.com>
---
Jai Luthra (6):
      media: ti: j721e-csi2rx: Use devm_of_platform_populate
      media: ti: j721e-csi2rx: Use fwnode_get_named_child_node
      media: ti: j721e-csi2rx: Fix source subdev link creation
      media: cadence: csi2rx: Implement get_fwnode_pad op
      media: cadence: cdns-csi2rx: Support multiple pixels per clock cycle
      media: ti: j721e-csi2rx: Support multiple pixels per clock

 drivers/media/platform/cadence/cdns-csi2rx.c       | 75 ++++++++++++++++------
 drivers/media/platform/cadence/cdns-csi2rx.h       | 19 ++++++
 drivers/media/platform/ti/Kconfig                  |  3 +-
 .../media/platform/ti/j721e-csi2rx/j721e-csi2rx.c  | 66 ++++++++++++++-----
 4 files changed, 128 insertions(+), 35 deletions(-)
---
base-commit: 586de92313fcab8ed84ac5f78f4d2aae2db92c59
change-id: 20250314-probe_fixes-7e0ec33c7fee

Best regards,
-- 
Jai Luthra <jai.luthra@...asonboard.com>