qcacld-3.0: Check RX rings empty after received WoW ACK

After received WoW ACK from FW, there should be some RX packets
coming and IRQ delayed, if these packets are not got processed,
FW UMAC will crash. Change adds an explicit check and abort suspend
if rings are not empty.

Change-Id: Ifbd0bfdbc564fb0c02eda7d13756d82966d88549
CRs-Fixed: 3693641

components/pmo/core/src/wlan_pmo_suspend_resume.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -1032,13 +1032,20 @@ QDF_STATUS pmo_core_txrx_suspend(struct wlan_objmgr_psoc *psoc)
 		goto out;
 	}
 
-	cdp_display_txrx_hw_info(dp_soc);
-	/* drain RX rings only */
-	cdp_drain_txrx(dp_soc, 1);
+	if (ret == -EOPNOTSUPP) {
+		/* For chips, which not support IRQ disable,
+		 * drain will not be called, display and check
+		 * rings HP/TP once again
+		 */
+		if (!cdp_display_txrx_hw_info(dp_soc)) {
+			pmo_err("Prevent suspend, ring not empty");
+			status = QDF_STATUS_E_AGAIN;
+		}
 
-	if (ret == -EOPNOTSUPP)
 		goto out;
+	}
 
+	cdp_drain_txrx(dp_soc, 0);
 	pmo_ctx->wow.txrx_suspended = true;
 out:
 	pmo_psoc_put_ref(psoc);