This patchset adds improvements to the existing media driver for IMX290 CMOS sensor from Sony. The major changes are adding 2 lane support, configurable link frequency & pixel rate, test pattern generation, and RAW12 mode support. The link frequency & pixel rate combinations depend on various factors like lane count, resolution and image format as per the datasheet. Also fixes for the following issues in the existing driver are included: * the current_format field in the struct imx290 can be used before initialization, * the reset signal to IMX290 isn't handled correctly, * the bus_type field of v4l2_fwnode_endpoint structure passed as the argument to v4l2_fwnode_endpoint_alloc_parse() function is not initiaized. Changes in v3: * The review comments from Sakari are addressed https://lkml.org/lkml/2019/12/19/705 As a part of those changes: . null ptr checks are added to imx290_set_fmt() so that it can be called early in the probe() function to set the default format, and to initialize imx290->current_mode and imx290->bpp - these last two must be set before imx290_calc_pixel_rate() is called when creating the controls . setting imx290->bpp removed from imx290_write_current_format(). Now this function only writes to the camera sensor registers. The call to imx290_write_current_format() is moved from imx290_set_fmt() back to imx290_start_streaming(): imx290_set_fmt() can be called when the sensor is powered off, and writes to the sensor registers would fail. . in imx290_set_ctrl() in the 12 bpp case the value the BLKLEVEL register is restored to when the test pattern is disabled is made consistent with imx290_12bit_settings[] * The "IMX290 sensor driver fixes" patchset included https://patchwork.kernel.org/cover/11407347/ * Added a patch to set the bus_type field of v4l2_fwnode_endpoint structure before calling v4l2_fwnode_endpoint_alloc_parse() Andrey Konovalov (4): media: i2c: imx290: set the format before VIDIOC_SUBDEV_G_FMT is called media: i2c: imx290: fix the order of the args in SET_RUNTIME_PM_OPS() media: i2c: imx290: fix reset GPIO pin handling media: i2c: imx290: set bus_type before calling v4l2_fwnode_endpoint_alloc_parse() Manivannan Sadhasivam (6): media: i2c: imx290: Add support for 2 data lanes media: i2c: imx290: Add configurable link frequency and pixel rate media: i2c: imx290: Add support for test pattern generation media: i2c: imx290: Add RAW12 mode support media: i2c: imx290: Add support to enumerate all frame sizes media: i2c: imx290: Move the settle time delay out of loop drivers/media/i2c/imx290.c | 358 ++++++++++++++++++++++++++++++------- 1 file changed, 297 insertions(+), 61 deletions(-) -- 2.17.1
