Commit d200de90 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
Browse files

media: imx: imx-mipi-csis: Implement the .get_frame_desc() operation 



The CSIS is connected to its sink through an SoC-specific gasket that
needs to be configured. Depending on the platform, the gasket
configuration requires knowing the CSI-2 DT. To provide the needed
information, implement the .get_frame_desc() operation.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: default avatarRui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent a1c046d3

drivers/media/platform/nxp/imx-mipi-csis.c

+27 −0
Original line number Diff line number Diff line
@@ -1160,6 +1160,32 @@ static int mipi_csis_set_fmt(struct v4l2_subdev *sd, 
	return 0;

}



static int mipi_csis_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,

				    struct v4l2_mbus_frame_desc *fd)

{

	struct mipi_csis_device *csis = sd_to_mipi_csis_device(sd);

	struct v4l2_mbus_frame_desc_entry *entry = &fd->entry[0];



	if (pad != CSIS_PAD_SOURCE)

		return -EINVAL;



	fd->type = V4L2_MBUS_FRAME_DESC_TYPE_PARALLEL;

	fd->num_entries = 1;



	memset(entry, 0, sizeof(*entry));



	mutex_lock(&csis->lock);



	entry->flags = 0;

	entry->pixelcode = csis->csis_fmt->code;

	entry->bus.csi2.vc = 0;

	entry->bus.csi2.dt = csis->csis_fmt->data_type;



	mutex_unlock(&csis->lock);



	return 0;

}



static int mipi_csis_log_status(struct v4l2_subdev *sd)

{

	struct mipi_csis_device *csis = sd_to_mipi_csis_device(sd);
@@ -1184,6 +1210,7 @@ static const struct v4l2_subdev_pad_ops mipi_csis_pad_ops = { 
	.enum_mbus_code		= mipi_csis_enum_mbus_code,

	.get_fmt		= mipi_csis_get_fmt,

	.set_fmt		= mipi_csis_set_fmt,

	.get_frame_desc		= mipi_csis_get_frame_desc,

};



static const struct v4l2_subdev_ops mipi_csis_subdev_ops = {