linux-kernel - [PATCH V3 0/4] Add support for DS90UB954-Q1

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Message-ID: <20251219122955.2078270-1-y-abhilashchandra@ti.com>
Date: Fri, 19 Dec 2025 17:59:51 +0530
From: Yemike Abhilash Chandra <y-abhilashchandra@...com>
To: <tomi.valkeinen@...asonboard.com>, <mchehab@...nel.org>,
	<robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<hverkuil@...all.nl>, <sakari.ailus@...ux.intel.com>,
	<laurent.pinchart@...asonboard.com>
CC: <hansg@...nel.org>, <mehdi.djait@...ux.intel.com>, <ribalda@...omium.org>,
	<git@...tzsch.eu>, <vladimir.zapolskiy@...aro.org>,
	<benjamin.mugnier@...s.st.com>, <dongcheng.yan@...el.com>, <u-kumar1@...com>,
	<jai.luthra@...ux.dev>, <linux-media@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<y-abhilashchandra@...com>
Subject: [PATCH V3 0/4] Add support for DS90UB954-Q1

DS90UB954-Q1 is an FPDLink-III deserializer that is mostly register
compatible with DS90UB960-Q1. The main difference is that it supports
half of the RX and TX ports, i.e. 2x FPDLink RX ports and 1x CSI TX
port. Therefore, add support for DS90UB954 within the existing DS90UB960
bindings and the driver.

Changelog:
Changes in v3:
- Remove the '|' character from the ports description since preserving formatting is not required. (Rob)
- Wrap the ports description at 80 characters. (Rob)
- Remove the example added for DS90UB954, as it is just a subset of the DS90UB960 example. (Rob)
- Change conditional checks to check for applicable chips over negated checks. (Tomi)
- Keep the model name in the ub960_hw_data structure and remove the switch-case from the probe function. (Tomi)
- Remove redundant reads and writes to the same register. (Tomi)
- Correct the bit positions for data delay in set_strobe_pos for UB954. (Tomi)
- Address a few minor nitpicks in code comments. (Tomi)

Test logs: https://gist.github.com/Yemike-Abhilash-Chandra/ba055ea9fd2c559d0bd939c3da724e4d
DT binding check results: https://gist.github.com/Yemike-Abhilash-Chandra/1092d51ca809bfa494449e6d7f06df73
(No errors related to ti,ds90ub960.yaml)

Link for v2: https://lore.kernel.org/all/20251202102208.80713-1-y-abhilashchandra@ti.com/

Yemike Abhilash Chandra (4):
  media: dt-bindings: ti,ds90ub960: Refactor port definitions
  media: i2c: ds90ub960: Use enums for chip type and chip family
  media: dt-bindings: ti,ds90ub960: Add support for DS90UB954-Q1
  media: i2c: ds90ub960: Add support for DS90UB954-Q1

 .../bindings/media/i2c/ti,ds90ub960.yaml      | 213 ++++++++---------
 drivers/media/i2c/Kconfig                     |   4 +-
 drivers/media/i2c/ds90ub960.c                 | 216 ++++++++++++------
 3 files changed, 263 insertions(+), 170 deletions(-)

-- 
2.34.1