Commit afdd1de0 authored by Mario Kleiner's avatar Mario Kleiner Committed by Alex Deucher
Browse files

drm/amd/display: Allow spatial dither to 10 bpc on all DCE 



Spatial dithering to 10 bpc depth was disabled for all DCE's.

Testing on DCE-8.3 and DCE-11.2 did not show any obvious ill
effects, but a measureable precision improvement (via colorimeter)
when displaying a fp16 framebuffer to a 10 bpc DP or HDMI connected
HDR-10 monitor.

v2: enable it for all DCEs (Alex)

Signed-off-by: default avatarMario Kleiner <mario.kleiner.de@gmail.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com> (v2)
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d7faf6f5

drivers/gpu/drm/amd/display/dc/dce/dce_opp.c

+1 −3
Original line number Diff line number Diff line
@@ -216,9 +216,7 @@ static void set_spatial_dither( 
	REG_UPDATE(FMT_BIT_DEPTH_CONTROL,

		FMT_TEMPORAL_DITHER_EN, 0);



	/* no 10bpc on DCE11*/

	if (params->flags.SPATIAL_DITHER_ENABLED == 0 ||

		params->flags.SPATIAL_DITHER_DEPTH == 2)

	if (params->flags.SPATIAL_DITHER_ENABLED == 0)

		return;



	/* only use FRAME_COUNTER_MAX if frameRandom == 1*/