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Commit 44af70a7 authored by Leo (Sunpeng) Li's avatar Leo (Sunpeng) Li Committed by Alex Deucher
Browse files

drm/amd/display: Expose dither setting functionality to Linux 



We will need this to disable dither for CRC capture.

Signed-off-by: default avatarLeo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 236d0e4f

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

+31 −0
Original line number Diff line number Diff line
@@ -300,6 +300,37 @@ bool dc_stream_get_crc(struct dc *dc, struct dc_stream_state *stream, 
	return false;

}



void dc_stream_set_dither_option(struct dc_stream_state *stream,

		enum dc_dither_option option)

{

	struct bit_depth_reduction_params params;

	struct dc_link *link = stream->status.link;

	struct pipe_ctx *pipes = NULL;

	int i;



	for (i = 0; i < MAX_PIPES; i++) {

		if (link->dc->current_state->res_ctx.pipe_ctx[i].stream ==

				stream) {

			pipes = &link->dc->current_state->res_ctx.pipe_ctx[i];

			break;

		}

	}



	memset(&params, 0, sizeof(params));

	if (!pipes)

		return;

	if (option > DITHER_OPTION_MAX)

		return;



	stream->dither_option = option;



	resource_build_bit_depth_reduction_params(stream,

				&params);

	stream->bit_depth_params = params;

	pipes->stream_res.opp->funcs->

		opp_program_bit_depth_reduction(pipes->stream_res.opp, &params);

}



void dc_stream_set_static_screen_events(struct dc *dc,

		struct dc_stream_state **streams,

		int num_streams,

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

+3 −0
Original line number Diff line number Diff line
@@ -287,6 +287,9 @@ void dc_stream_set_static_screen_events(struct dc *dc, 
					int num_streams,

					const struct dc_static_screen_events *events);



void dc_stream_set_dither_option(struct dc_stream_state *stream,

				 enum dc_dither_option option);





bool dc_stream_adjust_vmin_vmax(struct dc *dc,

				struct dc_stream_state **stream,