linux-kernel - [PATCH v4 0/2] media: i2c: Add ov2735 camera sensor driver

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Message-Id: <20250716134426.8348-1-hardevsinh.palaniya@siliconsignals.io>
Date: Wed, 16 Jul 2025 19:14:15 +0530
From: Hardevsinh Palaniya <hardevsinh.palaniya@...iconsignals.io>
To: sakari.ailus@...ux.intel.com,
	andriy.shevchenko@...ux.intel.com,
	laurent.pinchart@...asonboard.com,
	krzk+dt@...nel.org
Cc: Hardevsinh Palaniya <hardevsinh.palaniya@...iconsignals.io>,
	Himanshu Bhavani <himanshu.bhavani@...iconsignals.io>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Hans Verkuil <hverkuil@...all.nl>,
	André Apitzsch <git@...tzsch.eu>,
	"Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
	Hans de Goede <hansg@...nel.org>,
	Dongcheng Yan <dongcheng.yan@...el.com>,
	Sylvain Petinot <sylvain.petinot@...s.st.com>,
	Benjamin Mugnier <benjamin.mugnier@...s.st.com>,
	Jingjing Xiong <jingjing.xiong@...el.com>,
	Arnd Bergmann <arnd@...db.de>,
	Matthias Fend <matthias.fend@...end.at>,
	Heimir Thor Sverrisson <heimir.sverrisson@...il.com>,
	linux-media@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4 0/2] media: i2c: Add ov2735 camera sensor driver

Add a v4l2 subdevice driver for the Omnivision OV2735 sensor.

The Omnivision OV2735 is a 1/2.7-Inch CMOS image sensor with an
active array size of 1920 x 1080.

The following features are supported:
- Manual exposure an gain control support.
- vblank/hblank control support.
- Test pattern support control.
- Supported resolution: 1920 x 1080 @ 30fps (SGRBG10).

The driver is tested on mainline branch v6.14-rc6 on IMX8MP Debix Model a.

v3 -> v4

In Patch 1/2:
- Removed the clock-names property from the device tree binding.
- Added link-frequencies property to the port node.
- Cleaned up the example by removing unnecessary entries.

In Patch 2/2:
- Removed the cci_ prefix from read/write functions and custom page macros.
- Corrected error handling in the ov2735_page_access() function.
- Calculated PLL parameters dynamically based on the specified link frequency.
- Set resolution registers from format and crop instead of hardcoding.
- Fixed a memory leak in ov2735_parse_endpoint().
- Switched to devm_pm_runtime_*() functions for runtime PM handling.
- Added documentation for the use of msleep() in the power_on() function.
- Corrected GPIO polarity handling in the power_off() function.

v2 -> v3

In Patch 1/2:
- Renamed pwdn pin to enable pin.
- Changed supply names to lowercase and added them to required properties.

In Patch 2/2:
- Stored page number in CCI private bits.
- Added helper functions to handle page switching in cci_read() and cci_write().
- Removed ov2735_mbus_codes.
- Corrected control count to 9.

v1 -> v2

- Added necessary header files.
- Corrected indentation.
- Used the ret parameter in cci_write and cci_read functions.

Hardevsinh Palaniya (1):
  media: i2c: add ov2735 image sensor driver

Himanshu Bhavani (1):
  dt-bindings: media: i2c: Add ov2735 sensor

 .../bindings/media/i2c/ovti,ov2735.yaml       |  109 ++
 MAINTAINERS                                   |    9 +
 drivers/media/i2c/Kconfig                     |   10 +
 drivers/media/i2c/Makefile                    |    1 +
 drivers/media/i2c/ov2735.c                    | 1067 +++++++++++++++++
 5 files changed, 1196 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov2735.yaml
 create mode 100644 drivers/media/i2c/ov2735.c

-- 
2.34.1