media: ipu3-cio2: Validate mbus format in setting subdev format

media: ipu3-cio2: Validate mbus format in setting subdev format

commit a86cf9b29e8b12811cf53c4970eefe0c1d290476 upstream.

Validate media bus code, width and height when setting the subdev format.

This effectively reworks how setting subdev format is implemented in the
driver.

Fixes: c2a6a07afe4a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@vger.kernel.org # v4.16 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>