media: vsp1: Refactor display list configure operations

The entities provide a single .configure operation which configures the
object into the target display list, based on the vsp1_entity_params
selection.

Split the configure function into three parts, '.configure_stream()',
'.configure_frame()', and '.configure_partition()' to facilitate
splitting the configuration of each parameter class into separate
display list bodies.

[laurent.pinchart+renesas@ideasonboard.com: Blank line reformatting, remote unneeded local variable initialization]

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c b/drivers/media/platform/vsp1/vsp1_wpf.c
index 65ed2f8..8662c5d 100644
--- a/drivers/media/platform/vsp1/vsp1_wpf.c
+++ b/drivers/media/platform/vsp1/vsp1_wpf.c
@@ -232,10 +232,9 @@
 	vsp1_dlm_destroy(wpf->dlm);
 }
 
-static void wpf_configure(struct vsp1_entity *entity,
-			  struct vsp1_pipeline *pipe,
-			  struct vsp1_dl_list *dl,
-			  enum vsp1_entity_params params)
+static void wpf_configure_stream(struct vsp1_entity *entity,
+				 struct vsp1_pipeline *pipe,
+				 struct vsp1_dl_list *dl)
 {
 	struct vsp1_rwpf *wpf = to_rwpf(&entity->subdev);
 	struct vsp1_device *vsp1 = wpf->entity.vsp1;
@@ -245,149 +244,12 @@
 	u32 outfmt = 0;
 	u32 srcrpf = 0;
 
-	if (params == VSP1_ENTITY_PARAMS_RUNTIME) {
-		const unsigned int mask = BIT(WPF_CTRL_VFLIP)
-					| BIT(WPF_CTRL_HFLIP);
-		unsigned long flags;
-
-		spin_lock_irqsave(&wpf->flip.lock, flags);
-		wpf->flip.active = (wpf->flip.active & ~mask)
-				 | (wpf->flip.pending & mask);
-		spin_unlock_irqrestore(&wpf->flip.lock, flags);
-
-		outfmt = (wpf->alpha << VI6_WPF_OUTFMT_PDV_SHIFT) | wpf->outfmt;
-
-		if (wpf->flip.active & BIT(WPF_CTRL_VFLIP))
-			outfmt |= VI6_WPF_OUTFMT_FLP;
-		if (wpf->flip.active & BIT(WPF_CTRL_HFLIP))
-			outfmt |= VI6_WPF_OUTFMT_HFLP;
-
-		vsp1_wpf_write(wpf, dl, VI6_WPF_OUTFMT, outfmt);
-		return;
-	}
-
 	sink_format = vsp1_entity_get_pad_format(&wpf->entity,
 						 wpf->entity.config,
 						 RWPF_PAD_SINK);
 	source_format = vsp1_entity_get_pad_format(&wpf->entity,
 						   wpf->entity.config,
 						   RWPF_PAD_SOURCE);
-
-	if (params == VSP1_ENTITY_PARAMS_PARTITION) {
-		const struct v4l2_pix_format_mplane *format = &wpf->format;
-		const struct vsp1_format_info *fmtinfo = wpf->fmtinfo;
-		struct vsp1_rwpf_memory mem = wpf->mem;
-		unsigned int flip = wpf->flip.active;
-		unsigned int width = sink_format->width;
-		unsigned int height = sink_format->height;
-		unsigned int offset;
-
-		/*
-		 * Cropping. The partition algorithm can split the image into
-		 * multiple slices.
-		 */
-		if (pipe->partitions > 1)
-			width = pipe->partition->wpf.width;
-
-		vsp1_wpf_write(wpf, dl, VI6_WPF_HSZCLIP, VI6_WPF_SZCLIP_EN |
-			       (0 << VI6_WPF_SZCLIP_OFST_SHIFT) |
-			       (width << VI6_WPF_SZCLIP_SIZE_SHIFT));
-		vsp1_wpf_write(wpf, dl, VI6_WPF_VSZCLIP, VI6_WPF_SZCLIP_EN |
-			       (0 << VI6_WPF_SZCLIP_OFST_SHIFT) |
-			       (height << VI6_WPF_SZCLIP_SIZE_SHIFT));
-
-		if (pipe->lif)
-			return;
-
-		/*
-		 * Update the memory offsets based on flipping configuration.
-		 * The destination addresses point to the locations where the
-		 * VSP starts writing to memory, which can be any corner of the
-		 * image depending on the combination of flipping and rotation.
-		 */
-
-		/*
-		 * First take the partition left coordinate into account.
-		 * Compute the offset to order the partitions correctly on the
-		 * output based on whether flipping is enabled. Consider
-		 * horizontal flipping when rotation is disabled but vertical
-		 * flipping when rotation is enabled, as rotating the image
-		 * switches the horizontal and vertical directions. The offset
-		 * is applied horizontally or vertically accordingly.
-		 */
-		if (flip & BIT(WPF_CTRL_HFLIP) && !wpf->flip.rotate)
-			offset = format->width - pipe->partition->wpf.left
-				- pipe->partition->wpf.width;
-		else if (flip & BIT(WPF_CTRL_VFLIP) && wpf->flip.rotate)
-			offset = format->height - pipe->partition->wpf.left
-				- pipe->partition->wpf.width;
-		else
-			offset = pipe->partition->wpf.left;
-
-		for (i = 0; i < format->num_planes; ++i) {
-			unsigned int hsub = i > 0 ? fmtinfo->hsub : 1;
-			unsigned int vsub = i > 0 ? fmtinfo->vsub : 1;
-
-			if (wpf->flip.rotate)
-				mem.addr[i] += offset / vsub
-					     * format->plane_fmt[i].bytesperline;
-			else
-				mem.addr[i] += offset / hsub
-					     * fmtinfo->bpp[i] / 8;
-		}
-
-		if (flip & BIT(WPF_CTRL_VFLIP)) {
-			/*
-			 * When rotating the output (after rotation) image
-			 * height is equal to the partition width (before
-			 * rotation). Otherwise it is equal to the output
-			 * image height.
-			 */
-			if (wpf->flip.rotate)
-				height = pipe->partition->wpf.width;
-			else
-				height = format->height;
-
-			mem.addr[0] += (height - 1)
-				     * format->plane_fmt[0].bytesperline;
-
-			if (format->num_planes > 1) {
-				offset = (height / fmtinfo->vsub - 1)
-				       * format->plane_fmt[1].bytesperline;
-				mem.addr[1] += offset;
-				mem.addr[2] += offset;
-			}
-		}
-
-		if (wpf->flip.rotate && !(flip & BIT(WPF_CTRL_HFLIP))) {
-			unsigned int hoffset = max(0, (int)format->width - 16);
-
-			/*
-			 * Compute the output coordinate. The partition
-			 * horizontal (left) offset becomes a vertical offset.
-			 */
-			for (i = 0; i < format->num_planes; ++i) {
-				unsigned int hsub = i > 0 ? fmtinfo->hsub : 1;
-
-				mem.addr[i] += hoffset / hsub
-					     * fmtinfo->bpp[i] / 8;
-			}
-		}
-
-		/*
-		 * On Gen3 hardware the SPUVS bit has no effect on 3-planar
-		 * formats. Swap the U and V planes manually in that case.
-		 */
-		if (vsp1->info->gen == 3 && format->num_planes == 3 &&
-		    fmtinfo->swap_uv)
-			swap(mem.addr[1], mem.addr[2]);
-
-		vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_Y, mem.addr[0]);
-		vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_C0, mem.addr[1]);
-		vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_C1, mem.addr[2]);
-		return;
-	}
-
 	/* Format */
 	if (!pipe->lif) {
 		const struct v4l2_pix_format_mplane *format = &wpf->format;
@@ -461,6 +323,160 @@
 			   VI6_WFP_IRQ_ENB_DFEE);
 }
 
+static void wpf_configure_frame(struct vsp1_entity *entity,
+				struct vsp1_pipeline *pipe,
+				struct vsp1_dl_list *dl)
+{
+	const unsigned int mask = BIT(WPF_CTRL_VFLIP)
+				| BIT(WPF_CTRL_HFLIP);
+	struct vsp1_rwpf *wpf = to_rwpf(&entity->subdev);
+	unsigned long flags;
+	u32 outfmt;
+
+	spin_lock_irqsave(&wpf->flip.lock, flags);
+	wpf->flip.active = (wpf->flip.active & ~mask)
+			 | (wpf->flip.pending & mask);
+	spin_unlock_irqrestore(&wpf->flip.lock, flags);
+
+	outfmt = (wpf->alpha << VI6_WPF_OUTFMT_PDV_SHIFT) | wpf->outfmt;
+
+	if (wpf->flip.active & BIT(WPF_CTRL_VFLIP))
+		outfmt |= VI6_WPF_OUTFMT_FLP;
+	if (wpf->flip.active & BIT(WPF_CTRL_HFLIP))
+		outfmt |= VI6_WPF_OUTFMT_HFLP;
+
+	vsp1_wpf_write(wpf, dl, VI6_WPF_OUTFMT, outfmt);
+}
+
+static void wpf_configure_partition(struct vsp1_entity *entity,
+				    struct vsp1_pipeline *pipe,
+				    struct vsp1_dl_list *dl)
+{
+	struct vsp1_rwpf *wpf = to_rwpf(&entity->subdev);
+	struct vsp1_device *vsp1 = wpf->entity.vsp1;
+	struct vsp1_rwpf_memory mem = wpf->mem;
+	const struct v4l2_mbus_framefmt *sink_format;
+	const struct v4l2_pix_format_mplane *format = &wpf->format;
+	const struct vsp1_format_info *fmtinfo = wpf->fmtinfo;
+	unsigned int width;
+	unsigned int height;
+	unsigned int offset;
+	unsigned int flip;
+	unsigned int i;
+
+	sink_format = vsp1_entity_get_pad_format(&wpf->entity,
+						 wpf->entity.config,
+						 RWPF_PAD_SINK);
+	width = sink_format->width;
+	height = sink_format->height;
+
+	/*
+	 * Cropping. The partition algorithm can split the image into
+	 * multiple slices.
+	 */
+	if (pipe->partitions > 1)
+		width = pipe->partition->wpf.width;
+
+	vsp1_wpf_write(wpf, dl, VI6_WPF_HSZCLIP, VI6_WPF_SZCLIP_EN |
+		       (0 << VI6_WPF_SZCLIP_OFST_SHIFT) |
+		       (width << VI6_WPF_SZCLIP_SIZE_SHIFT));
+	vsp1_wpf_write(wpf, dl, VI6_WPF_VSZCLIP, VI6_WPF_SZCLIP_EN |
+		       (0 << VI6_WPF_SZCLIP_OFST_SHIFT) |
+		       (height << VI6_WPF_SZCLIP_SIZE_SHIFT));
+
+	if (pipe->lif)
+		return;
+
+	/*
+	 * Update the memory offsets based on flipping configuration.
+	 * The destination addresses point to the locations where the
+	 * VSP starts writing to memory, which can be any corner of the
+	 * image depending on the combination of flipping and rotation.
+	 */
+
+	/*
+	 * First take the partition left coordinate into account.
+	 * Compute the offset to order the partitions correctly on the
+	 * output based on whether flipping is enabled. Consider
+	 * horizontal flipping when rotation is disabled but vertical
+	 * flipping when rotation is enabled, as rotating the image
+	 * switches the horizontal and vertical directions. The offset
+	 * is applied horizontally or vertically accordingly.
+	 */
+	flip = wpf->flip.active;
+
+	if (flip & BIT(WPF_CTRL_HFLIP) && !wpf->flip.rotate)
+		offset = format->width - pipe->partition->wpf.left
+			- pipe->partition->wpf.width;
+	else if (flip & BIT(WPF_CTRL_VFLIP) && wpf->flip.rotate)
+		offset = format->height - pipe->partition->wpf.left
+			- pipe->partition->wpf.width;
+	else
+		offset = pipe->partition->wpf.left;
+
+	for (i = 0; i < format->num_planes; ++i) {
+		unsigned int hsub = i > 0 ? fmtinfo->hsub : 1;
+		unsigned int vsub = i > 0 ? fmtinfo->vsub : 1;
+
+		if (wpf->flip.rotate)
+			mem.addr[i] += offset / vsub
+				     * format->plane_fmt[i].bytesperline;
+		else
+			mem.addr[i] += offset / hsub
+				     * fmtinfo->bpp[i] / 8;
+	}
+
+	if (flip & BIT(WPF_CTRL_VFLIP)) {
+		/*
+		 * When rotating the output (after rotation) image
+		 * height is equal to the partition width (before
+		 * rotation). Otherwise it is equal to the output
+		 * image height.
+		 */
+		if (wpf->flip.rotate)
+			height = pipe->partition->wpf.width;
+		else
+			height = format->height;
+
+		mem.addr[0] += (height - 1)
+			     * format->plane_fmt[0].bytesperline;
+
+		if (format->num_planes > 1) {
+			offset = (height / fmtinfo->vsub - 1)
+			       * format->plane_fmt[1].bytesperline;
+			mem.addr[1] += offset;
+			mem.addr[2] += offset;
+		}
+	}
+
+	if (wpf->flip.rotate && !(flip & BIT(WPF_CTRL_HFLIP))) {
+		unsigned int hoffset = max(0, (int)format->width - 16);
+
+		/*
+		 * Compute the output coordinate. The partition
+		 * horizontal (left) offset becomes a vertical offset.
+		 */
+		for (i = 0; i < format->num_planes; ++i) {
+			unsigned int hsub = i > 0 ? fmtinfo->hsub : 1;
+
+			mem.addr[i] += hoffset / hsub
+				     * fmtinfo->bpp[i] / 8;
+		}
+	}
+
+	/*
+	 * On Gen3 hardware the SPUVS bit has no effect on 3-planar
+	 * formats. Swap the U and V planes manually in that case.
+	 */
+	if (vsp1->info->gen == 3 && format->num_planes == 3 &&
+	    fmtinfo->swap_uv)
+		swap(mem.addr[1], mem.addr[2]);
+
+	vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_Y, mem.addr[0]);
+	vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_C0, mem.addr[1]);
+	vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_C1, mem.addr[2]);
+}
+
 static unsigned int wpf_max_width(struct vsp1_entity *entity,
 				  struct vsp1_pipeline *pipe)
 {
@@ -480,7 +496,9 @@
 
 static const struct vsp1_entity_operations wpf_entity_ops = {
 	.destroy = vsp1_wpf_destroy,
-	.configure = wpf_configure,
+	.configure_stream = wpf_configure_stream,
+	.configure_frame = wpf_configure_frame,
+	.configure_partition = wpf_configure_partition,
 	.max_width = wpf_max_width,
 	.partition = wpf_partition,
 };