[PATCH v3 0/2] Add IMX219 CMOS image sensor support

From: Andrey Konovalov <andrey.konovalov@linaro.org>
To: mchehab@kernel.org, robh+dt@kernel.org
Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	peter.griffin@linaro.org, dave.stevenson@raspberrypi.com,
	ezequiel@collabora.com, sakari.ailus@linux.intel.com,
	Andrey Konovalov <andrey.konovalov@linaro.org>
Subject: [PATCH v3 0/2] Add IMX219 CMOS image sensor support
Date: Fri, 10 Jan 2020 23:09:13 +0300	[thread overview]
Message-ID: <20200110200915.22575-1-andrey.konovalov@linaro.org> (raw)

This patchset adds support for IMX219 CMOS image sensor from Sony.
Sony IMX219 is an 8MPix, 1/4.0-inch CMOS active pixel digital image sensor
with an active array size of 3280H x 2464V. It is programmable through
I2C interface. Image data are sent through MIPI CSI-2, which can be configured
as either 2 or 4 data lanes, but this driver currently only supports 2 lanes.
The currently supported resolutions are 3280x2464 @ 15fps, 1920x1080 @ 30fps
(cropped FOV), and 1640x1232 (2x2 binned) @ 30fps.

The driver has been tested with Raspberry Pi Camera Module v2 connected to
Raspberry Pi Zero W.

Changes since v2 [1]:

dt-bindings:
  - "clock-names" property removed
  - "xclr-gpios" property renamed to "reset-gpios"
  - the camera-clk mode moved out of sensor device node
  - "clock-lanes" property removed (the sensor doesn't support lane reordering)
  - "clock-noncontinuous" description made more clear (thanks Sakari)
  - "data-lanes" property reworked: it is now optional, and if it is not
    present the driver should assume four-lane operation. For two-lane
    operation (the only mode supported by the current driver) this property
    must be present and set to <1 2>

imx219 sensor driver:
  - "xclr-gpios" property renamed to "reset-gpios", the corresponding
    struct gpio_desc field in the imx219 structure is renamed to reset_gpio
  - in the driver probe() a test to check that the number of CSI-2 data lanes
    is supported by the driver was added
  - devm_clk_get() is now called with NULL as the 2nd argument, as there is
    just single clock, and there is no need to use clock ID
  - error messages are added when the driver fails to get regulators, to init
    media entity pads, or to register sensor sub-device

Thanks,
Andrey

[1] https://patchwork.kernel.org/cover/11311137/

Andrey Konovalov (1):
  dt-bindings: media: i2c: Add IMX219 CMOS sensor binding

Dave Stevenson (1):
  media: i2c: Add driver for Sony IMX219 sensor

 .../devicetree/bindings/media/i2c/imx219.yaml |  104 ++
 MAINTAINERS                                   |    8 +
 drivers/media/i2c/Kconfig                     |   12 +
 drivers/media/i2c/Makefile                    |    1 +
 drivers/media/i2c/imx219.c                    | 1253 +++++++++++++++++
 5 files changed, 1378 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/imx219.yaml
 create mode 100644 drivers/media/i2c/imx219.c

-- 
2.17.1