drm/amdgpu/display move get_num_odm_splits() into dc_resource.c

It's used by more than just DCN2.0.  Fixes missing symbol when
amdgpu is built without DCN support.
Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Tested-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -532,6 +532,22 @@ static inline void get_vp_scan_direction(
 		*flip_horz_scan_dir = !*flip_horz_scan_dir;
 }
 
+int get_num_odm_splits(struct pipe_ctx *pipe)
+{
+	int odm_split_count = 0;
+	struct pipe_ctx *next_pipe = pipe->next_odm_pipe;
+	while (next_pipe) {
+		odm_split_count++;
+		next_pipe = next_pipe->next_odm_pipe;
+	}
+	pipe = pipe->prev_odm_pipe;
+	while (pipe) {
+		odm_split_count++;
+		pipe = pipe->prev_odm_pipe;
+	}
+	return odm_split_count;
+}
+
 static void calculate_split_count_and_index(struct pipe_ctx *pipe_ctx, int *split_count, int *split_idx)
 {
 	*split_count = get_num_odm_splits(pipe_ctx);

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

@@ -1861,22 +1861,6 @@ void dcn20_populate_dml_writeback_from_context(
 
 }
 
-int get_num_odm_splits(struct pipe_ctx *pipe)
-{
-	int odm_split_count = 0;
-	struct pipe_ctx *next_pipe = pipe->next_odm_pipe;
-	while (next_pipe) {
-		odm_split_count++;
-		next_pipe = next_pipe->next_odm_pipe;
-	}
-	pipe = pipe->prev_odm_pipe;
-	while (pipe) {
-		odm_split_count++;
-		pipe = pipe->prev_odm_pipe;
-	}
-	return odm_split_count;
-}
-
 int dcn20_populate_dml_pipes_from_context(
 		struct dc *dc, struct dc_state *context, display_e2e_pipe_params_st *pipes)
 {

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h

@@ -49,7 +49,6 @@ unsigned int dcn20_calc_max_scaled_time(
 		unsigned int time_per_pixel,
 		enum mmhubbub_wbif_mode mode,
 		unsigned int urgent_watermark);
-int get_num_odm_splits(struct pipe_ctx *pipe);
 int dcn20_populate_dml_pipes_from_context(
 		struct dc *dc, struct dc_state *context, display_e2e_pipe_params_st *pipes);
 struct pipe_ctx *dcn20_acquire_idle_pipe_for_layer(

drivers/gpu/drm/amd/display/dc/inc/resource.h

@@ -179,4 +179,7 @@ unsigned int resource_pixel_format_to_bpp(enum surface_pixel_format format);
 
 void get_audio_check(struct audio_info *aud_modes,
 	struct audio_check *aud_chk);
+
+int get_num_odm_splits(struct pipe_ctx *pipe);
+
 #endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_INC_RESOURCE_H_ */