Commit ac3a4fa1 authored by Qingqing Zhuo's avatar Qingqing Zhuo Committed by Alex Deucher
Browse files

drm/amd/display: enable DP DSC Compliance automation 



[Why]
Color depth data is not parsed during test requests.

[How]
Update display color depth according to color depth
request from the test equipment.

Signed-off-by: default avatarQingqing Zhuo <qingqing.zhuo@amd.com>
Reviewed-by: default avatarNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: default avatarAnson Jacob <Anson.Jacob@amd.com>
Tested-by: default avatarDan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9127daa0

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

+40 −0
Original line number Diff line number Diff line
@@ -2808,10 +2808,27 @@ static void dp_test_send_link_test_pattern(struct dc_link *link) 
	enum dp_test_pattern test_pattern;

	enum dp_test_pattern_color_space test_pattern_color_space =

			DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED;

	enum dc_color_depth requestColorDepth = COLOR_DEPTH_UNDEFINED;

	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;

	struct pipe_ctx *pipe_ctx = NULL;

	int i;



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

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



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

		if (pipes[i].stream == NULL)

			continue;



		if (pipes[i].stream->link == link && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe) {

			pipe_ctx = &pipes[i];

			break;

		}

	}



	if (pipe_ctx == NULL)

		return;



	/* get link test pattern and pattern parameters */

	core_link_read_dpcd(

			link,
@@ -2849,6 +2866,29 @@ static void dp_test_send_link_test_pattern(struct dc_link *link) 
				DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :

				DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;



	switch (dpcd_test_params.bits.BPC) {

	case 0: // 6 bits

		requestColorDepth = COLOR_DEPTH_666;

		break;

	case 1: // 8 bits

		requestColorDepth = COLOR_DEPTH_888;

		break;

	case 2: // 10 bits

		requestColorDepth = COLOR_DEPTH_101010;

		break;

	case 3: // 12 bits

		requestColorDepth = COLOR_DEPTH_121212;

		break;

	default:

		break;

	}



	if (requestColorDepth != COLOR_DEPTH_UNDEFINED

			&& pipe_ctx->stream->timing.display_color_depth != requestColorDepth) {

		pipe_ctx->stream->timing.display_color_depth = requestColorDepth;

		dp_update_dsc_config(pipe_ctx);

	}



	dc_link_dp_set_test_pattern(

			link,

			test_pattern,