drm/amd/display: skip error logging when DMUB is inactive from S3

[Why]
On resume from S3, while DMUB is inactive, DMUB queue and execute
calls will not work. Skip reporting errors in these scenarios

[How]
Add new return code during DMUB queue and execute calls when DMUB
is in S3 state. Skip logging errors in these scenarios

Reviewed-by: Alvin Lee <[e-mail]>
Acked-by: Wayne Lin <[e-mail]>
Signed-off-by: Samson Tam <[e-mail]>
Tested-by: Daniel Wheeler <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c

···
 
 		if (status == DMUB_STATUS_QUEUE_FULL) {
 			/* Execute and wait for queue to become empty again. */
-			dmub_srv_cmd_execute(dmub);
+			status = dmub_srv_cmd_execute(dmub);
+			if (status == DMUB_STATUS_POWER_STATE_D3)
+				return false;
+
 			dmub_srv_wait_for_idle(dmub, 100000);
 
 			/* Requeue the command. */
···
 		}
 
 		if (status != DMUB_STATUS_OK) {
-			DC_ERROR("Error queueing DMUB command: status=%d\n", status);
-			dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+			if (status != DMUB_STATUS_POWER_STATE_D3) {
+				DC_ERROR("Error queueing DMUB command: status=%d\n", status);
+				dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+			}
 			return false;
 		}
 	}
 
 	status = dmub_srv_cmd_execute(dmub);
 	if (status != DMUB_STATUS_OK) {
-		DC_ERROR("Error starting DMUB execution: status=%d\n", status);
-		dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+		if (status != DMUB_STATUS_POWER_STATE_D3) {
+			DC_ERROR("Error starting DMUB execution: status=%d\n", status);
+			dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+		}
 		return false;
 	}
 
···
 
 		if (status == DMUB_STATUS_QUEUE_FULL) {
 			/* Execute and wait for queue to become empty again. */
-			dmub_srv_cmd_execute(dmub);
+			status = dmub_srv_cmd_execute(dmub);
+			if (status == DMUB_STATUS_POWER_STATE_D3)
+				return false;
+
 			dmub_srv_wait_for_idle(dmub, 100000);
 
 			/* Requeue the command. */
···
 		}
 
 		if (status != DMUB_STATUS_OK) {
-			DC_ERROR("Error queueing DMUB command: status=%d\n", status);
-			dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+			if (status != DMUB_STATUS_POWER_STATE_D3) {
+				DC_ERROR("Error queueing DMUB command: status=%d\n", status);
+				dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+			}
 			return false;
 		}
 	}
 
 	status = dmub_srv_cmd_execute(dmub);
 	if (status != DMUB_STATUS_OK) {
-		DC_ERROR("Error starting DMUB execution: status=%d\n", status);
-		dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+		if (status != DMUB_STATUS_POWER_STATE_D3) {
+			DC_ERROR("Error starting DMUB execution: status=%d\n", status);
+			dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
+		}
 		return false;
 	}
 

drivers/gpu/drm/amd/display/dmub/dmub_srv.h

···
 	DMUB_STATUS_TIMEOUT,
 	DMUB_STATUS_INVALID,
 	DMUB_STATUS_HW_FAILURE,
+	DMUB_STATUS_POWER_STATE_D3
 };
 
 /* enum dmub_asic - dmub asic identifier */

drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c

···
 		return DMUB_STATUS_INVALID;
 
 	if (dmub->power_state != DMUB_POWER_STATE_D0)
-		return DMUB_STATUS_INVALID;
+		return DMUB_STATUS_POWER_STATE_D3;
 
 	if (dmub->inbox1_rb.rptr > dmub->inbox1_rb.capacity ||
 	    dmub->inbox1_rb.wrpt > dmub->inbox1_rb.capacity) {
···
 		return DMUB_STATUS_INVALID;
 
 	if (dmub->power_state != DMUB_POWER_STATE_D0)
-		return DMUB_STATUS_INVALID;
+		return DMUB_STATUS_POWER_STATE_D3;
 
 	/**
 	 * Read back all the queued commands to ensure that they've