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drm/amd/display: Revise Replay Desync Error IRQ handle

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[Why]
Current Desync IRQ handler will have some potential do not hit the
desync error case. We change to check both desync error HPD and DPCD.

Signed-off-by: Dennis Chan <dennis.chan@amd.com>
Acked-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Robin Chen <robin.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dennis Chan 2023-10-12 23:08:25 +08:00 committed by Alex Deucher
parent 77b2c07d7d
commit d0ef62bd10
2 changed files with 4 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/dc_types.h
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@ -1039,6 +1039,7 @@ struct replay_config {
uint32_t debug_flags; // Replay debug flags
bool replay_timing_sync_supported; // Replay desync is supported
bool force_disable_desync_error_check; // Replay desync is supported
bool received_desync_error_hpd; //Replay Received Desync Error HPD.
union replay_error_status replay_error_status; // Replay error status
};

3
drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
View File

@ -210,6 +210,9 @@ static void handle_hpd_irq_replay_sink(struct dc_link *link)
&replay_error_status.raw,
sizeof(replay_error_status.raw));
if (replay_configuration.bits.DESYNC_ERROR_STATUS)
link->replay_settings.config.received_desync_error_hpd = 1;
link->replay_settings.config.replay_error_status.bits.LINK_CRC_ERROR =
replay_error_status.bits.LINK_CRC_ERROR;
link->replay_settings.config.replay_error_status.bits.DESYNC_ERROR =