[RFC 02/10] video: display: Update the display with the video mode data

[Pawel Moll]

The display entity (sink) may need to know about the mode being
changed, eg. to update timings.

Alternatively there could be a separate set_mode() operation...

Signed-off-by: Pawel Moll <pawel.moll at arm.com>
---
 drivers/video/display/display-core.c |    5 +++--
 include/video/display.h              |    6 ++++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/video/display/display-core.c b/drivers/video/display/display-core.c
index d2daa15..4b8e45a 100644
--- a/drivers/video/display/display-core.c
+++ b/drivers/video/display/display-core.c
@@ -69,12 +69,13 @@ EXPORT_SYMBOL_GPL(display_entity_set_state);
  *
  * Return 0 on success or a negative error code otherwise.
  */
-int display_entity_update(struct display_entity *entity)
+int display_entity_update(struct display_entity *entity,
+			     const struct videomode *mode)
 {
 	if (!entity->ops.ctrl || !entity->ops.ctrl->update)
 		return 0;
 
-	return entity->ops.ctrl->update(entity);
+	return entity->ops.ctrl->update(entity, mode);
 }
 EXPORT_SYMBOL_GPL(display_entity_update);
 
diff --git a/include/video/display.h b/include/video/display.h
index 90d18ca..64f84d5 100644
--- a/include/video/display.h
+++ b/include/video/display.h
@@ -77,7 +77,8 @@ struct display_entity_interface_params {
 struct display_entity_control_ops {
 	int (*set_state)(struct display_entity *ent,
 			 enum display_entity_state state);
-	int (*update)(struct display_entity *ent);
+	int (*update)(struct display_entity *ent,
+			 const struct videomode *mode);
 	int (*get_modes)(struct display_entity *ent,
 			 const struct videomode **modes);
 	int (*get_params)(struct display_entity *ent,
@@ -111,7 +112,8 @@ struct display_entity {
 
 int display_entity_set_state(struct display_entity *entity,
 			     enum display_entity_state state);
-int display_entity_update(struct display_entity *entity);
+int display_entity_update(struct display_entity *entity,
+			     const struct videomode *mode);
 int display_entity_get_modes(struct display_entity *entity,
 			     const struct videomode **modes);
 int display_entity_get_params(struct display_entity *entity,
-- 
1.7.10.4