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

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[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: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaodong Yan 2019-01-17 00:18:01 +08:00 committed by Alex Deucher
parent 385d7eeaf1
commit a4f1d2b8a5
2 changed files with 5 additions and 0 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
View File

@ -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)

1
drivers/gpu/drm/amd/display/dc/dc_types.h
View File

@ -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 {