linux-dev/drivers/media/platform/nxp/dw100, branch master

media: v4l2-ctrls: drop 'elems' argument from control type ops.

2022-09-24T06:49:06Z

The type ops for equal, init and validate have an elems argument, but this can be taken from struct v4l2_ctrl: ctrl->elems for equal and init, and ctrl->new_elems for validate (since you are validating a new control value). So drop this argument and update all callers. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: dw100: Fix an error handling path in dw100_probe()

2022-08-30T05:35:47Z

After a successful call to media_device_init() it is safer to call media_device_cleanup(). Add the missing call in the error handling path of the probe, as already done in the remove function. [hverkuil: fixed a typo in the commit log] Fixes: bd090d4d995a ("media: dw100: Add i.MX8MP dw100 dewarper driver") Signed-off-by: Christophe JAILLET Reviewed-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: dw100: Add i.MX8MP dw100 dewarper driver

2022-08-29T13:32:13Z

Add a V4L2 mem-to-mem driver for the Vivante DW100 Dewarp Processor IP core found on i.MX8MP SoC. The processor core applies a programmable geometrical transformation on input images to correct distorsion introduced by lenses. The transformation function is exposed as a grid map with 16x16 pixel macroblocks indexed using X, Y vertex coordinates. The dewarping map can be set from application through a dedicated v4l2 control. If not set or invalid, the driver computes an identity map prior to starting the processing engine. The driver supports scaling, cropping and pixel format conversion. Signed-off-by: Xavier Roumegue Reviewed-by: Ezequiel Garcia Reviewed-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab