diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 2746a926a8d9..1bb66bfbbd2f 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -48,6 +48,17 @@ static inline struct f_uac1 *func_to_uac1(struct usb_function *f)
 /* Number of streaming interfaces */
 #define F_AUDIO_NUM_INTERFACES		2
 
+static struct usb_interface_assoc_descriptor iad_desc = {
+	.bLength = sizeof(iad_desc),
+	.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
+
+	.bFirstInterface = 0,
+	.bInterfaceCount = 3,
+	.bFunctionClass = USB_CLASS_AUDIO,
+	.bFunctionSubClass = USB_SUBCLASS_AUDIOSTREAMING,
+	.bFunctionProtocol = UAC_VERSION_1,
+};
+
 /* B.3.1  Standard AC Interface Descriptor */
 static struct usb_interface_descriptor ac_interface_desc = {
 	.bLength =		USB_DT_INTERFACE_SIZE,
@@ -247,6 +258,7 @@ static struct uac_iso_endpoint_descriptor as_iso_in_desc = {
 };
 
 static struct usb_descriptor_header *f_audio_desc[] = {
+	(struct usb_descriptor_header *)&iad_desc,
 	(struct usb_descriptor_header *)&ac_interface_desc,
 	(struct usb_descriptor_header *)&ac_header_desc,
 
@@ -276,6 +288,7 @@ static struct usb_descriptor_header *f_audio_desc[] = {
 };
 
 enum {
+	STR_ASSOC,
 	STR_AC_IF,
 	STR_USB_OUT_IT,
 	STR_USB_OUT_IT_CH_NAMES,
@@ -290,6 +303,7 @@ enum {
 };
 
 static struct usb_string strings_uac1[] = {
+	[STR_ASSOC].s = "Source/Sink",
 	[STR_AC_IF].s = "AC Interface",
 	[STR_USB_OUT_IT].s = "Playback Input terminal",
 	[STR_USB_OUT_IT_CH_NAMES].s = "Playback Channels",
@@ -523,6 +537,8 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
 	us = usb_gstrings_attach(cdev, uac1_strings, ARRAY_SIZE(strings_uac1));
 	if (IS_ERR(us))
 		return PTR_ERR(us);
+
+	iad_desc.iFunction = us[STR_ASSOC].id;
 	ac_interface_desc.iInterface = us[STR_AC_IF].id;
 	usb_out_it_desc.iTerminal = us[STR_USB_OUT_IT].id;
 	usb_out_it_desc.iChannelNames = us[STR_USB_OUT_IT_CH_NAMES].id;
@@ -559,6 +575,7 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
 	status = usb_interface_id(c, f);
 	if (status < 0)
 		goto fail;
+	iad_desc.bFirstInterface = status;
 	ac_interface_desc.bInterfaceNumber = status;
 	uac1->ac_intf = status;
 	uac1->ac_alt = 0;