From: Dennis Chan <dennis.chan@xxxxxxx>
[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@xxxxxxx>
Acked-by: Hersen Wu <hersenxs.wu@xxxxxxx>
Reviewed-by: Robin Chen <robin.chen@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dc_types.h | 1 +
.../drm/amd/display/dc/link/protocols/link_dp_irq_handler.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index bb159b6b1b76..cea666ea66c6 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -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
};
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
index 06e829ef48af..0c00e94e90b1 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
@@ -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 =
--
2.25.1
