Commit 6210e866 authored by Alvin Lee's avatar Alvin Lee Committed by Alex Deucher
Browse files

drm/amd/display: Ignore phantom DTBCLK requirement 



[Description]
Phantom DTBCLK can be calculated different from main because phantom
has no DSC and thus will have a different output BPP. Ignore phantom
DTBCLK requirement and only consider non-phantom DTBCLK requirements.

Reviewed-by: default avatarDillon Varone <dillon.varone@amd.com>
Acked-by: default avatarZaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: default avatarAlvin Lee <alvin.lee2@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 82c421ba

drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c

+9 −1
Original line number Diff line number Diff line
@@ -7713,7 +7713,8 @@ static bool dml_core_mode_support(struct dml2_core_calcs_mode_support_ex *in_out 








	mode_lib->ms.support.DTBCLKRequiredMoreThanSupported = false;









	for (k = 0; k < mode_lib->ms.num_active_planes; ++k) {









		if (display_cfg->stream_descriptors[display_cfg->plane_descriptors[k].stream_index].output.output_encoder == dml2_hdmifrl) {









		if (display_cfg->stream_descriptors[display_cfg->plane_descriptors[k].stream_index].output.output_encoder == dml2_hdmifrl &&









				!dml_is_phantom_pipe(&display_cfg->plane_descriptors[k])) {









			mode_lib->ms.RequiredDTBCLK[k] = RequiredDTBCLK(









				mode_lib->ms.RequiresDSC[k],









				s->PixelClockBackEnd[k],








@@ -7728,6 +7729,13 @@ static bool dml_core_mode_support(struct dml2_core_calcs_mode_support_ex *in_out







			if (mode_lib->ms.RequiredDTBCLK[k] > ((double)min_clk_table->max_clocks_khz.dtbclk / 1000)) {









				mode_lib->ms.support.DTBCLKRequiredMoreThanSupported = true;









			}









		} else {









			/* Phantom DTBCLK can be calculated different from main because phantom has no DSC and thus









			 * will have a different output BPP. Ignore phantom DTBCLK requirement and only consider









			 * non-phantom DTBCLK requirements. In map_mode_to_soc_dpm we choose the highest DTBCLK









			 * required - by setting phantom dtbclk to 0 we ignore it.









			 */









			mode_lib->ms.RequiredDTBCLK[k] = 0;









		}









	}