drm/amd/display: Make new dc interface for adding dsc resource

[Why]
dcn20_add_dsc_to_stream_resource is accessed in amdgpu_dm directly.
This creates build error for configuration with DCN disabled.

[How]
Make the function available through a resource pool function so
that dcn20 function need not be called directly.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -674,6 +674,17 @@ bool dc_stream_set_dynamic_metadata(struct dc *dc,
 	return true;
 }
 
+enum dc_status dc_stream_add_dsc_to_resource(struct dc *dc,
+		struct dc_state *state,
+		struct dc_stream_state *stream)
+{
+	if (dc->res_pool->funcs->add_dsc_to_stream_resource) {
+		return dc->res_pool->funcs->add_dsc_to_stream_resource(dc, state, stream);
+	} else {
+		return DC_NO_DSC_RESOURCE;
+	}
+}
+
 void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream)
 {
 	DC_LOG_DC(

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

@@ -363,6 +363,10 @@ bool dc_stream_remove_writeback(struct dc *dc,
 		struct dc_stream_state *stream,
 		uint32_t dwb_pipe_inst);
 
+enum dc_status dc_stream_add_dsc_to_resource(struct dc *dc,
+		struct dc_state *state,
+		struct dc_stream_state *stream);
+
 bool dc_stream_warmup_writeback(struct dc *dc,
 		int num_dwb,
 		struct dc_writeback_info *wb_info);

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

@@ -3364,6 +3364,7 @@ static struct resource_funcs dcn20_res_pool_funcs = {
 	.validate_bandwidth = dcn20_validate_bandwidth,
 	.acquire_idle_pipe_for_layer = dcn20_acquire_idle_pipe_for_layer,
 	.add_stream_to_ctx = dcn20_add_stream_to_ctx,
+	.add_dsc_to_stream_resource = dcn20_add_dsc_to_stream_resource,
 	.remove_stream_from_ctx = dcn20_remove_stream_from_ctx,
 	.populate_dml_writeback_from_context = dcn20_populate_dml_writeback_from_context,
 	.patch_unknown_plane_state = dcn20_patch_unknown_plane_state,

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c

@@ -1759,6 +1759,7 @@ static struct resource_funcs dcn21_res_pool_funcs = {
 	.validate_bandwidth = dcn21_validate_bandwidth,
 	.populate_dml_pipes = dcn21_populate_dml_pipes_from_context,
 	.add_stream_to_ctx = dcn20_add_stream_to_ctx,
+	.add_dsc_to_stream_resource = dcn20_add_dsc_to_stream_resource,
 	.remove_stream_from_ctx = dcn20_remove_stream_from_ctx,
 	.acquire_idle_pipe_for_layer = dcn20_acquire_idle_pipe_for_layer,
 	.populate_dml_writeback_from_context = dcn20_populate_dml_writeback_from_context,

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

@@ -165,7 +165,9 @@ struct resource_funcs {
 			struct dc_3dlut **lut,
 			struct dc_transfer_func **shaper);
 #endif
-
+	enum dc_status (*add_dsc_to_stream_resource)(
+			struct dc *dc, struct dc_state *state,
+			struct dc_stream_state *stream);
 };
 
 struct audio_support{