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drm/amd/display: Fix monitor flash issue

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[Why & How]
For a some specific monitors, when connected on boot or hot plug,
monitor flash for 1/2 seconds can happen during first HDCP query
operation. Ading some delay in the init sequence for these monitors
fixes the issue, so it is implemented as monitor specific patch.

Co-authored-by: Shah Dharati <dharshah@amd.com>
Reviewed-by: Hansen Dsouza <Hansen.Dsouza@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Shah Dharati <dharshah@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shah Dharati 2022-05-31 09:58:12 -04:00 committed by Alex Deucher
parent c443514a7d
commit b840b64bc8
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c
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@ -524,7 +524,7 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp,
set_watchdog_in_ms(hdcp, 3000, output);
set_state_id(hdcp, output, D2_A6_WAIT_FOR_RX_ID_LIST);
} else {
callback_in_ms(0, output);
callback_in_ms(1, output);
set_state_id(hdcp, output, D2_SEND_CONTENT_STREAM_TYPE);
}
break;