Re: [PATCH v2 08/13] v4l: vsp1: Make vsp1_entity_get_pad_compose() more generic

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Hello.

On 04/26/2016 12:36 AM, Laurent Pinchart wrote:

Turn the helper into a function that can retrieve crop and compose
selection rectangles.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
---
  drivers/media/platform/vsp1/vsp1_entity.c | 24 ++++++++++++++++++++----
  drivers/media/platform/vsp1/vsp1_entity.h |  6 +++---
  drivers/media/platform/vsp1/vsp1_rpf.c    |  7 ++++---
  3 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c
index f60d7926d53f..8c49a74381a1 100644
--- a/drivers/media/platform/vsp1/vsp1_entity.c
+++ b/drivers/media/platform/vsp1/vsp1_entity.c
@@ -87,12 +87,28 @@ vsp1_entity_get_pad_format(struct vsp1_entity *entity,
  	return v4l2_subdev_get_try_format(&entity->subdev, cfg, pad);
  }

+/**
+ * vsp1_entity_get_pad_selection - Get a pad selection from storage for entity
+ * @entity: the entity
+ * @cfg: the configuration storage
+ * @pad: the pad number
+ * @target: the selection target
+ *
+ * Return the selection rectangle stored in the given configuration for an
+ * entity's pad. The configuration can be an ACTIVE or TRY configuration. The
+ * selection target can be COMPOSE or CROP.
+ */
  struct v4l2_rect *
-vsp1_entity_get_pad_compose(struct vsp1_entity *entity,
-			    struct v4l2_subdev_pad_config *cfg,
-			    unsigned int pad)
+vsp1_entity_get_pad_selection(struct vsp1_entity *entity,
+			      struct v4l2_subdev_pad_config *cfg,
+			      unsigned int pad, unsigned int target)
  {
-	return v4l2_subdev_get_try_compose(&entity->subdev, cfg, pad);
+	if (target == V4L2_SEL_TGT_COMPOSE)
+		return v4l2_subdev_get_try_compose(&entity->subdev, cfg, pad);
+	else if (target == V4L2_SEL_TGT_CROP)
+		return v4l2_subdev_get_try_crop(&entity->subdev, cfg, pad);
+	else
+		return NULL;

   How about *switch* instead?

[...]

MBR, Sergei

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