media: renesas: vsp1: Name nested structure in vsp1_drm

The vsp1_drm structure defines an anonymous nested structure to store
per-input data. In preparation for extending that structure, give it a
name and is it through the driver. This improves code readability.

Signed-off-by: Laurent Pinchart <[e-mail]>
Reviewed-by: Tomi Valkeinen <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/renesas/vsp1/vsp1_drm.c

···
 				      struct vsp1_entity *uif,
 				      unsigned int brx_input)
 {
+	const struct vsp1_drm_input *input = &vsp1->drm->inputs[rpf->entity.index];
 	struct v4l2_subdev_selection sel = {
 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
 	};
 	struct v4l2_subdev_format format = {
 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
 	};
-	const struct v4l2_rect *crop;
 	int ret;
 
 	/*
 	 * Configure the format on the RPF sink pad and propagate it up to the
 	 * BRx sink pad.
 	 */
-	crop = &vsp1->drm->inputs[rpf->entity.index].crop;
-
 	format.pad = RWPF_PAD_SINK;
-	format.format.width = crop->width + crop->left;
-	format.format.height = crop->height + crop->top;
+	format.format.width = input->crop.width + input->crop.left;
+	format.format.height = input->crop.height + input->crop.top;
 	format.format.code = rpf->fmtinfo->mbus;
 	format.format.field = V4L2_FIELD_NONE;
 
···
 
 	sel.pad = RWPF_PAD_SINK;
 	sel.target = V4L2_SEL_TGT_CROP;
-	sel.r = *crop;
+	sel.r = input->crop;
 
 	ret = v4l2_subdev_call(&rpf->entity.subdev, pad, set_selection, NULL,
 			       &sel);
···
 {
 	struct vsp1_device *vsp1 = dev_get_drvdata(dev);
 	struct vsp1_drm_pipeline *drm_pipe = &vsp1->drm->pipe[pipe_index];
+	struct vsp1_drm_input *input;
 	struct vsp1_rwpf *rpf;
 	int ret;
 
 	if (rpf_index >= vsp1->info->rpf_count)
 		return -EINVAL;
 
+	input = &vsp1->drm->inputs[rpf_index];
 	rpf = vsp1->rpf[rpf_index];
 
 	if (!cfg) {
···
 
 	rpf->format.flags = cfg->premult ? V4L2_PIX_FMT_FLAG_PREMUL_ALPHA : 0;
 
-	vsp1->drm->inputs[rpf_index].crop = cfg->src;
-	vsp1->drm->inputs[rpf_index].compose = cfg->dst;
-	vsp1->drm->inputs[rpf_index].zpos = cfg->zpos;
+	input->crop = cfg->src;
+	input->compose = cfg->dst;
+	input->zpos = cfg->zpos;
 
 	drm_pipe->pipe.inputs[rpf_index] = rpf;
 

drivers/media/platform/renesas/vsp1/vsp1_drm.h

···
 	struct vsp1_drm_pipeline pipe[VSP1_MAX_LIF];
 	struct mutex lock;
 
-	struct {
+	struct vsp1_drm_input {
 		struct v4l2_rect crop;
 		struct v4l2_rect compose;
 		unsigned int zpos;