diff --git a/drivers/net/wireless/ath/ath12k/acpi.c b/drivers/net/wireless/ath/ath12k/acpi.c
index 0555d35aab47..b6935ab1655e 100644
--- a/drivers/net/wireless/ath/ath12k/acpi.c
+++ b/drivers/net/wireless/ath/ath12k/acpi.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include "core.h"
@@ -12,7 +12,7 @@ static int ath12k_acpi_dsm_get_data(struct ath12k_base *ab, int func)
 {
 	union acpi_object *obj;
 	acpi_handle root_handle;
-	int ret;
+	int ret, i;
 
 	root_handle = ACPI_HANDLE(ab->dev);
 	if (!root_handle) {
@@ -32,6 +32,20 @@ static int ath12k_acpi_dsm_get_data(struct ath12k_base *ab, int func)
 		ab->acpi.func_bit = obj->integer.value;
 	} else if (obj->type == ACPI_TYPE_BUFFER) {
 		switch (func) {
+		case ATH12K_ACPI_DSM_FUNC_SUPPORT_FUNCS:
+			if (obj->buffer.length < ATH12K_ACPI_DSM_FUNC_MIN_BITMAP_SIZE ||
+			    obj->buffer.length > ATH12K_ACPI_DSM_FUNC_MAX_BITMAP_SIZE) {
+				ath12k_warn(ab, "invalid ACPI DSM func size: %d\n",
+					    obj->buffer.length);
+				ret = -EINVAL;
+				goto out;
+			}
+
+			ab->acpi.func_bit = 0;
+			for (i = 0; i < obj->buffer.length; i++)
+				ab->acpi.func_bit += obj->buffer.pointer[i] << (i * 8);
+
+			break;
 		case ATH12K_ACPI_DSM_FUNC_TAS_CFG:
 			if (obj->buffer.length != ATH12K_ACPI_DSM_TAS_CFG_SIZE) {
 				ath12k_warn(ab, "invalid ACPI DSM TAS config size: %d\n",
diff --git a/drivers/net/wireless/ath/ath12k/acpi.h b/drivers/net/wireless/ath/ath12k/acpi.h
index 39e003d86a48..6ccc26250aaf 100644
--- a/drivers/net/wireless/ath/ath12k/acpi.h
+++ b/drivers/net/wireless/ath/ath12k/acpi.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 #ifndef ATH12K_ACPI_H
 #define ATH12K_ACPI_H
@@ -48,6 +48,9 @@
 #define ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE		100
 #define ATH12K_ACPI_DSM_TAS_CFG_SIZE			108
 
+#define ATH12K_ACPI_DSM_FUNC_MIN_BITMAP_SIZE	1
+#define ATH12K_ACPI_DSM_FUNC_MAX_BITMAP_SIZE	4
+
 #define ATH12K_ACPI_DSM_GEO_OFFSET_DATA_SIZE (ATH12K_ACPI_GEO_OFFSET_DATA_OFFSET + \
 					      ATH12K_ACPI_BIOS_SAR_GEO_OFFSET_LEN)
 #define ATH12K_ACPI_DSM_BIOS_SAR_DATA_SIZE (ATH12K_ACPI_POWER_LIMIT_DATA_OFFSET + \