Bluetooth: btusb: support download nvm with different board id for wcn6855

we define many nvm files for wcn6855 btsoc and host driver
should find the correct nvm file based on board ID and then
download it.
Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

drivers/bluetooth/btusb.c

@@ -3774,12 +3774,14 @@ static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
 #define QCA_SYSCFG_UPDATED	0x40
 #define QCA_PATCH_UPDATED	0x80
 #define QCA_DFU_TIMEOUT		3000
+#define QCA_FLAG_MULTI_NVM      0x80
 
 struct qca_version {
 	__le32	rom_version;
 	__le32	patch_version;
 	__le32	ram_version;
-	__le32	ref_clock;
+	__le16	board_id;
+	__le16	flag;
 	__u8	reserved[4];
 } __packed;
 
@@ -3962,8 +3964,14 @@ static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
 	char fwname[64];
 	int err;
 
-	snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
-		 le32_to_cpu(ver->rom_version));
+	if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
+		snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x_%04x.bin",
+			 le32_to_cpu(ver->rom_version),
+			 le16_to_cpu(ver->board_id));
+	} else {
+		snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
+			 le32_to_cpu(ver->rom_version));
+	}
 
 	err = request_firmware(&fw, fwname, &hdev->dev);
 	if (err) {
@@ -4030,6 +4038,11 @@ static int btusb_setup_qca(struct hci_dev *hdev)
 			return err;
 	}
 
+	err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
+					sizeof(ver));
+	if (err < 0)
+		return err;
+
 	if (!(status & QCA_SYSCFG_UPDATED)) {
 		err = btusb_setup_qca_load_nvm(hdev, &ver, info);
 		if (err < 0)