drm/amd/display: Extend dc_plane_get_status with flags

[WHY]
dc_plane_get_status may be used for reading other plane properties
in the future.

[HOW]
Provide API for choosing plane properties to read.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Swapnil Patel <swapnil.patel@amd.com>
Signed-off-by: Tomasz Siemek <Tomasz.Siemek@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Tomasz Siemek

drivers/gpu/drm/amd/display/dc/core/dc_surface.c

@@ -109,7 +109,8 @@ struct dc_plane_state *dc_create_plane_state(const struct dc *dc)
  *****************************************************************************
  */
 const struct dc_plane_status *dc_plane_get_status(
-		const struct dc_plane_state *plane_state)
+		const struct dc_plane_state *plane_state,
+		union dc_plane_status_update_flags flags)
 {
 	const struct dc_plane_status *plane_status;
 	struct dc  *dc;
@@ -136,7 +137,7 @@ const struct dc_plane_status *dc_plane_get_status(
 		if (pipe_ctx->plane_state != plane_state)
 			continue;
 
-		if (pipe_ctx->plane_state)
+		if (pipe_ctx->plane_state && flags.bits.address)
 			pipe_ctx->plane_state->status.is_flip_pending = false;
 
 		break;
@@ -151,7 +152,8 @@ const struct dc_plane_status *dc_plane_get_status(
 		if (pipe_ctx->plane_state != plane_state)
 			continue;
 
-		dc->hwss.update_pending_status(pipe_ctx);
+		if (flags.bits.address)
+			dc->hwss.update_pending_status(pipe_ctx);
 	}
 
 	return plane_status;

drivers/gpu/drm/amd/display/dc/dc_plane.h

@@ -28,9 +28,17 @@
 
 #include "dc_hw_types.h"
 
+union dc_plane_status_update_flags {
+	struct {
+		uint32_t address : 1;
+	} bits;
+	uint32_t raw;
+};
+
 struct dc_plane_state *dc_create_plane_state(const struct dc *dc);
 const struct dc_plane_status *dc_plane_get_status(
-		const struct dc_plane_state *plane_state);
+		const struct dc_plane_state *plane_state,
+		union dc_plane_status_update_flags flags);
 void dc_plane_state_retain(struct dc_plane_state *plane_state);
 void dc_plane_state_release(struct dc_plane_state *plane_state);