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Commit a4f1d2b8 authored by Xiaodong Yan's avatar Xiaodong Yan Committed by Alex Deucher
Browse files

drm/amd/display: Add monitor patch for backlight off 



[Why]
Different panel need different time from backlight disable to end of valid video data,
if the time is too short, panel will flash when dpms off

[How]
Add monitor patch to control the time from backlight disable to end of valid video data,

Signed-off-by: default avatarXiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: default avatarWenjing Liu <Wenjing.Liu@amd.com>
Acked-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 385d7eea

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

+4 −0
Original line number Diff line number Diff line
@@ -119,6 +119,10 @@ bool edp_receiver_ready_T9(struct dc_link *link) 
			break;

		udelay(100); //MAx T9

	} while (++tries < 50);



	if (link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off > 0)

		udelay(link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off * 1000);



	return result;

}

bool edp_receiver_ready_T7(struct dc_link *link)

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

+1 −0
Original line number Diff line number Diff line
@@ -201,6 +201,7 @@ union display_content_support { 
struct dc_panel_patch {

	unsigned int dppowerup_delay;

	unsigned int extra_t12_ms;

	unsigned int extra_delay_backlight_off;

};



struct dc_edid_caps {