Bluetooth: btnxpuart: Add support for IW615 chipset

This adds support for IW615 chipset with it's bootloader signature
and firmware file.
Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

drivers/bluetooth/btnxpuart.c

@@ -42,6 +42,8 @@
 #define FIRMWARE_W9098_OLD	"uartuart9098_bt_v1.bin"
 #define FIRMWARE_IW416		"uartiw416_bt_v0.bin"
 #define FIRMWARE_IW612		"uartspi_n61x_v1.bin.se"
+#define FIRMWARE_IW615		"uartspi_iw610_v0.bin"
+#define FIRMWARE_SECURE_IW615	"uartspi_iw610_v0.bin.se"
 #define FIRMWARE_IW624		"uartiw624_bt.bin"
 #define FIRMWARE_SECURE_IW624	"uartiw624_bt.bin.se"
 #define FIRMWARE_AW693		"uartaw693_bt.bin"
@@ -57,6 +59,8 @@
 #define CHIP_ID_IW624c		0x8001
 #define CHIP_ID_AW693a0		0x8200
 #define CHIP_ID_AW693a1		0x8201
+#define CHIP_ID_IW615a0		0x8800
+#define CHIP_ID_IW615a1		0x8801
 
 #define FW_SECURE_MASK		0xc0
 #define FW_OPEN			0x00
@@ -925,6 +929,15 @@ static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
 		else
 			bt_dev_err(hdev, "Illegal loader version %02x", loader_ver);
 		break;
+	case CHIP_ID_IW615a0:
+	case CHIP_ID_IW615a1:
+		if ((loader_ver & FW_SECURE_MASK) == FW_OPEN)
+			fw_name = FIRMWARE_IW615;
+		else if ((loader_ver & FW_SECURE_MASK) != FW_AUTH_ILLEGAL)
+			fw_name = FIRMWARE_SECURE_IW615;
+		else
+			bt_dev_err(hdev, "Illegal loader version %02x", loader_ver);
+		break;
 	default:
 		bt_dev_err(hdev, "Unknown chip signature %04x", chipid);
 		break;