diff --git a/Makefile b/Makefile
index a4663ccd..b0c67259 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 EXTRA_CFLAGS += -Werror -DCONFIG_MT76_LEDS
 obj-m := mt76.o
 obj-$(CONFIG_MT76_USB) += mt76-usb.o
diff --git a/agg-rx.c b/agg-rx.c
index 936ab1ca..3d34caf7 100644
--- a/agg-rx.c
+++ b/agg-rx.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/channel.c b/channel.c
index 130af1b2..2b705bdb 100644
--- a/channel.c
+++ b/channel.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2024 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/debugfs.c b/debugfs.c
index c3d5b6a0..79e8d390 100644
--- a/debugfs.c
+++ b/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/dma.c b/dma.c
index 1fa7de1d..27aa591f 100644
--- a/dma.c
+++ b/dma.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/dma.h b/dma.h
index 17a80e17..d41f978d 100644
--- a/dma.h
+++ b/dma.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/eeprom.c b/eeprom.c
index b21ee5b5..d775fd36 100644
--- a/eeprom.c
+++ b/eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mac80211.c b/mac80211.c
index 0ad61981..72d03b90 100644
--- a/mac80211.c
+++ b/mac80211.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mcu.c b/mcu.c
index 65d4c2ad..535c3d8a 100644
--- a/mcu.c
+++ b/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2019 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mmio.c b/mmio.c
index cd2e9737..0ea97295 100644
--- a/mmio.c
+++ b/mmio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76.h b/mt76.h
index f5051b28..da1baef5 100644
--- a/mt76.h
+++ b/mt76.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt7603/Makefile b/mt7603/Makefile
index 687f64fd..57d28591 100644
--- a/mt7603/Makefile
+++ b/mt7603/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 EXTRA_CFLAGS += -Werror -DCONFIG_MT76_LEDS
 obj-m += mt7603e.o
 
diff --git a/mt7603/beacon.c b/mt7603/beacon.c
index 6457ee06..300a7f9c 100644
--- a/mt7603/beacon.c
+++ b/mt7603/beacon.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7603.h"
 
diff --git a/mt7603/core.c b/mt7603/core.c
index 915b8349..9c2943fd 100644
--- a/mt7603/core.c
+++ b/mt7603/core.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7603.h"
 #include "../trace.h"
diff --git a/mt7603/debugfs.c b/mt7603/debugfs.c
index 3967f2f0..c891ad54 100644
--- a/mt7603/debugfs.c
+++ b/mt7603/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7603.h"
 
diff --git a/mt7603/dma.c b/mt7603/dma.c
index e26cc78f..3a168515 100644
--- a/mt7603/dma.c
+++ b/mt7603/dma.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7603.h"
 #include "mac.h"
diff --git a/mt7603/eeprom.c b/mt7603/eeprom.c
index 88382b53..b89db2db 100644
--- a/mt7603/eeprom.c
+++ b/mt7603/eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/of.h>
 #include "mt7603.h"
diff --git a/mt7603/eeprom.h b/mt7603/eeprom.h
index 4687d6dc..b6b746d1 100644
--- a/mt7603/eeprom.h
+++ b/mt7603/eeprom.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 
 #ifndef __MT7603_EEPROM_H
 #define __MT7603_EEPROM_H
diff --git a/mt7603/init.c b/mt7603/init.c
index 86617a3e..10f2ec70 100644
--- a/mt7603/init.c
+++ b/mt7603/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/etherdevice.h>
 #include "mt7603.h"
diff --git a/mt7603/mac.c b/mt7603/mac.c
index 6387f9e6..d3110eeb 100644
--- a/mt7603/mac.c
+++ b/mt7603/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/etherdevice.h>
 #include <linux/timekeeping.h>
diff --git a/mt7603/mac.h b/mt7603/mac.h
index 17e34ecf..9f5fab51 100644
--- a/mt7603/mac.h
+++ b/mt7603/mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 
 #ifndef __MT7603_MAC_H
 #define __MT7603_MAC_H
diff --git a/mt7603/main.c b/mt7603/main.c
index 3e8b1ec7..a3e825cc 100644
--- a/mt7603/main.c
+++ b/mt7603/main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/etherdevice.h>
 #include <linux/platform_device.h>
diff --git a/mt7603/mcu.c b/mt7603/mcu.c
index 301668c3..e432cce9 100644
--- a/mt7603/mcu.c
+++ b/mt7603/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/firmware.h>
 #include "mt7603.h"
diff --git a/mt7603/mcu.h b/mt7603/mcu.h
index 30df8a3f..7debe76c 100644
--- a/mt7603/mcu.h
+++ b/mt7603/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 
 #ifndef __MT7603_MCU_H
 #define __MT7603_MCU_H
diff --git a/mt7603/mt7603.h b/mt7603/mt7603.h
index 55a034cc..071bfab3 100644
--- a/mt7603/mt7603.h
+++ b/mt7603/mt7603.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 
 #ifndef __MT7603_H
 #define __MT7603_H
diff --git a/mt7603/pci.c b/mt7603/pci.c
index 3d94cdb4..5fee6105 100644
--- a/mt7603/pci.c
+++ b/mt7603/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/mt7603/regs.h b/mt7603/regs.h
index 524bceb8..97942f5e 100644
--- a/mt7603/regs.h
+++ b/mt7603/regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 
 #ifndef __MT7603_REGS_H
 #define __MT7603_REGS_H
diff --git a/mt7603/soc.c b/mt7603/soc.c
index a14eb90b..9b8291d8 100644
--- a/mt7603/soc.c
+++ b/mt7603/soc.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/mt7615/Kconfig b/mt7615/Kconfig
index 1ab14391..8cc0c1b5 100644
--- a/mt7615/Kconfig
+++ b/mt7615/Kconfig
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 config MT7615_COMMON
 	tristate
diff --git a/mt7615/Makefile b/mt7615/Makefile
index 3564d337..9274c006 100644
--- a/mt7615/Makefile
+++ b/mt7615/Makefile
@@ -1,4 +1,4 @@
-#SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 EXTRA_CFLAGS += -DCONFIG_MT76_LEDS
 obj-$(CONFIG_MT7615_COMMON) += mt7615-common.o
diff --git a/mt7615/debugfs.c b/mt7615/debugfs.c
index 2a6d317d..0f7b2015 100644
--- a/mt7615/debugfs.c
+++ b/mt7615/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7615.h"
 
diff --git a/mt7615/dma.c b/mt7615/dma.c
index bcf78643..59d2b3e8 100644
--- a/mt7615/dma.c
+++ b/mt7615/dma.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7615/eeprom.c b/mt7615/eeprom.c
index d4bc7e11..d6828e1c 100644
--- a/mt7615/eeprom.c
+++ b/mt7615/eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7615/eeprom.h b/mt7615/eeprom.h
index a67fbb90..6aed52e1 100644
--- a/mt7615/eeprom.h
+++ b/mt7615/eeprom.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2019 MediaTek Inc. */
 
 #ifndef __MT7615_EEPROM_H
diff --git a/mt7615/init.c b/mt7615/init.c
index 3e7af3e5..42e11ba1 100644
--- a/mt7615/init.c
+++ b/mt7615/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Roy Luo <royluo@google.com>
diff --git a/mt7615/mac.c b/mt7615/mac.c
index f8d2cc94..bd56cdb0 100644
--- a/mt7615/mac.c
+++ b/mt7615/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7615/mac.h b/mt7615/mac.h
index d08fbe64..336ebce5 100644
--- a/mt7615/mac.h
+++ b/mt7615/mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2019 MediaTek Inc. */
 
 #ifndef __MT7615_MAC_H
diff --git a/mt7615/main.c b/mt7615/main.c
index 2e7b05ee..5aa1125a 100644
--- a/mt7615/main.c
+++ b/mt7615/main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Roy Luo <royluo@google.com>
diff --git a/mt7615/mcu.c b/mt7615/mcu.c
index 4064e193..52bbedda 100644
--- a/mt7615/mcu.c
+++ b/mt7615/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Roy Luo <royluo@google.com>
diff --git a/mt7615/mcu.h b/mt7615/mcu.h
index 8e9604be..851b0e48 100644
--- a/mt7615/mcu.h
+++ b/mt7615/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2019 MediaTek Inc. */
 
 #ifndef __MT7615_MCU_H
diff --git a/mt7615/mmio.c b/mt7615/mmio.c
index dbb2c824..da7edd48 100644
--- a/mt7615/mmio.c
+++ b/mt7615/mmio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/kernel.h>
diff --git a/mt7615/mt7615.h b/mt7615/mt7615.h
index 9bdd29e8..e16865dd 100644
--- a/mt7615/mt7615.h
+++ b/mt7615/mt7615.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2019 MediaTek Inc. */
 
 #ifndef __MT7615_H
diff --git a/mt7615/mt7615_trace.h b/mt7615/mt7615_trace.h
index 9be5a58a..697fc5d2 100644
--- a/mt7615/mt7615_trace.h
+++ b/mt7615/mt7615_trace.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@kernel.org>
  */
diff --git a/mt7615/pci.c b/mt7615/pci.c
index 68010e27..f5018bfa 100644
--- a/mt7615/pci.c
+++ b/mt7615/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7615/pci_init.c b/mt7615/pci_init.c
index f607eee3..a9178e07 100644
--- a/mt7615/pci_init.c
+++ b/mt7615/pci_init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Roy Luo <royluo@google.com>
diff --git a/mt7615/pci_mac.c b/mt7615/pci_mac.c
index c2e4e6aa..d83d8ec4 100644
--- a/mt7615/pci_mac.c
+++ b/mt7615/pci_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7615/regs.h b/mt7615/regs.h
index 806b3887..eb3c24d5 100644
--- a/mt7615/regs.h
+++ b/mt7615/regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2019 MediaTek Inc. */
 
 #ifndef __MT7615_REGS_H
diff --git a/mt7615/sdio.c b/mt7615/sdio.c
index f56038cd..46188951 100644
--- a/mt7615/sdio.c
+++ b/mt7615/sdio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * Author: Felix Fietkau <nbd@nbd.name>
diff --git a/mt7615/soc.c b/mt7615/soc.c
index def3cd7a..a1840050 100644
--- a/mt7615/soc.c
+++ b/mt7615/soc.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7615/testmode.c b/mt7615/testmode.c
index 03f5af84..6eb97b7e 100644
--- a/mt7615/testmode.c
+++ b/mt7615/testmode.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
 
 #include "mt7615.h"
diff --git a/mt7615/trace.c b/mt7615/trace.c
index 6c02d5af..7ec39e0b 100644
--- a/mt7615/trace.c
+++ b/mt7615/trace.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@kernel.org>
  */
diff --git a/mt7615/usb.c b/mt7615/usb.c
index 4aa9fa1c..7736ae3f 100644
--- a/mt7615/usb.c
+++ b/mt7615/usb.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2019 MediaTek Inc.
  *
  * Author: Felix Fietkau <nbd@nbd.name>
diff --git a/mt7615/usb_sdio.c b/mt7615/usb_sdio.c
index 820b3959..f4169de9 100644
--- a/mt7615/usb_sdio.c
+++ b/mt7615/usb_sdio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * Author: Lorenzo Bianconi <lorenzo@kernel.org>
diff --git a/mt76_connac.h b/mt76_connac.h
index 192dcc37..813d61bf 100644
--- a/mt76_connac.h
+++ b/mt76_connac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT76_CONNAC_H
diff --git a/mt76_connac2_mac.h b/mt76_connac2_mac.h
index eb476536..d4e2c314 100644
--- a/mt76_connac2_mac.h
+++ b/mt76_connac2_mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2022 MediaTek Inc. */
 
 #ifndef __MT76_CONNAC2_MAC_H
diff --git a/mt76_connac3_mac.c b/mt76_connac3_mac.c
index 2d300948..651fcd41 100644
--- a/mt76_connac3_mac.c
+++ b/mt76_connac3_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include "mt76_connac.h"
diff --git a/mt76_connac3_mac.h b/mt76_connac3_mac.h
index c5eaedca..247e2e7a 100644
--- a/mt76_connac3_mac.h
+++ b/mt76_connac3_mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT76_CONNAC3_MAC_H
diff --git a/mt76_connac_mac.c b/mt76_connac_mac.c
index 0db00efe..7af6a578 100644
--- a/mt76_connac_mac.c
+++ b/mt76_connac_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include "mt76_connac.h"
diff --git a/mt76_connac_mcu.c b/mt76_connac_mcu.c
index fc3e6728..9d5fcb33 100644
--- a/mt76_connac_mcu.c
+++ b/mt76_connac_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/firmware.h>
diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index 27daf419..92713813 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT76_CONNAC_MCU_H
diff --git a/mt76x0/pci.c b/mt76x0/pci.c
index 11c16d1f..f8d206a0 100644
--- a/mt76x0/pci.c
+++ b/mt76x0/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x0/pci_mcu.c b/mt76x0/pci_mcu.c
index f0962507..efa549dc 100644
--- a/mt76x0/pci_mcu.c
+++ b/mt76x0/pci_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x0/usb_mcu.c b/mt76x0/usb_mcu.c
index 6dc1f51f..20a8f365 100644
--- a/mt76x0/usb_mcu.c
+++ b/mt76x0/usb_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02.h b/mt76x02.h
index 9d7ee09b..eadecf13 100644
--- a/mt76x02.h
+++ b/mt76x02.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
diff --git a/mt76x02_beacon.c b/mt76x02_beacon.c
index d570b99b..7c9b1694 100644
--- a/mt76x02_beacon.c
+++ b/mt76x02_beacon.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_debugfs.c b/mt76x02_debugfs.c
index 8ce4bf44..d81f696b 100644
--- a/mt76x02_debugfs.c
+++ b/mt76x02_debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x02_dfs.c b/mt76x02_dfs.c
index 7a07636d..21c99ad7 100644
--- a/mt76x02_dfs.c
+++ b/mt76x02_dfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_dfs.h b/mt76x02_dfs.h
index 491010a3..d4005199 100644
--- a/mt76x02_dfs.h
+++ b/mt76x02_dfs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_dma.h b/mt76x02_dma.h
index 23b0e7d1..2f6ba8cf 100644
--- a/mt76x02_dma.h
+++ b/mt76x02_dma.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_eeprom.c b/mt76x02_eeprom.c
index 5d402cf2..2a15bd2c 100644
--- a/mt76x02_eeprom.c
+++ b/mt76x02_eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_eeprom.h b/mt76x02_eeprom.h
index 13fa7085..3cbb2977 100644
--- a/mt76x02_eeprom.h
+++ b/mt76x02_eeprom.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_mac.c b/mt76x02_mac.c
index 83488b2d..14ee5b3b 100644
--- a/mt76x02_mac.c
+++ b/mt76x02_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
diff --git a/mt76x02_mac.h b/mt76x02_mac.h
index 5dc6c834..778454ac 100644
--- a/mt76x02_mac.h
+++ b/mt76x02_mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
diff --git a/mt76x02_mcu.c b/mt76x02_mcu.c
index 75978820..e16f06a2 100644
--- a/mt76x02_mcu.c
+++ b/mt76x02_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_mcu.h b/mt76x02_mcu.h
index e187ed52..a422cdc5 100644
--- a/mt76x02_mcu.h
+++ b/mt76x02_mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_mmio.c b/mt76x02_mmio.c
index a683d53c..dd71c1c9 100644
--- a/mt76x02_mmio.c
+++ b/mt76x02_mmio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_phy.c b/mt76x02_phy.c
index cbe7e6f0..557380c9 100644
--- a/mt76x02_phy.c
+++ b/mt76x02_phy.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_phy.h b/mt76x02_phy.h
index 84d8a613..09e8edee 100644
--- a/mt76x02_phy.h
+++ b/mt76x02_phy.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_regs.h b/mt76x02_regs.h
index fe0c5e32..e87d3f8a 100644
--- a/mt76x02_regs.h
+++ b/mt76x02_regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x02_trace.c b/mt76x02_trace.c
index a812c3a1..a92b2b73 100644
--- a/mt76x02_trace.c
+++ b/mt76x02_trace.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x02_trace.h b/mt76x02_trace.h
index 11d119cd..56eea2f6 100644
--- a/mt76x02_trace.h
+++ b/mt76x02_trace.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x02_txrx.c b/mt76x02_txrx.c
index d8bc4ae1..301b4318 100644
--- a/mt76x02_txrx.c
+++ b/mt76x02_txrx.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x02_usb.h b/mt76x02_usb.h
index b5be884b..49ab05c1 100644
--- a/mt76x02_usb.h
+++ b/mt76x02_usb.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_usb_core.c b/mt76x02_usb_core.c
index 0e1ede93..c94c2f66 100644
--- a/mt76x02_usb_core.c
+++ b/mt76x02_usb_core.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_usb_mcu.c b/mt76x02_usb_mcu.c
index b2cc4491..968c73e0 100644
--- a/mt76x02_usb_mcu.c
+++ b/mt76x02_usb_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x02_util.c b/mt76x02_util.c
index 4fb30589..7dc9a141 100644
--- a/mt76x02_util.c
+++ b/mt76x02_util.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
diff --git a/mt76x2/Makefile b/mt76x2/Makefile
index caf08953..cbc90a96 100644
--- a/mt76x2/Makefile
+++ b/mt76x2/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 obj-$(CONFIG_MT76x2_COMMON) += mt76x2-common.o
 obj-$(CONFIG_MT76x2E) += mt76x2e.o
 obj-$(CONFIG_MT76x2U) += mt76x2u.o
diff --git a/mt76x2/eeprom.c b/mt76x2/eeprom.c
index e7df3b93..e1e317ad 100644
--- a/mt76x2/eeprom.c
+++ b/mt76x2/eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/eeprom.h b/mt76x2/eeprom.h
index 43430ef9..1ee8be38 100644
--- a/mt76x2/eeprom.h
+++ b/mt76x2/eeprom.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/init.c b/mt76x2/init.c
index 19c13929..408dc08b 100644
--- a/mt76x2/init.c
+++ b/mt76x2/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x2/mac.c b/mt76x2/mac.c
index e08740ca..2fa34ca6 100644
--- a/mt76x2/mac.c
+++ b/mt76x2/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x2/mac.h b/mt76x2/mac.h
index d5c3d26b..f8ea7007 100644
--- a/mt76x2/mac.h
+++ b/mt76x2/mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/mcu.c b/mt76x2/mcu.c
index ac83ce5f..769d9242 100644
--- a/mt76x2/mcu.c
+++ b/mt76x2/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x2/mcu.h b/mt76x2/mcu.h
index 41fd6656..16a4386a 100644
--- a/mt76x2/mcu.h
+++ b/mt76x2/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/mt76x2.h b/mt76x2/mt76x2.h
index f051721b..984756c8 100644
--- a/mt76x2/mt76x2.h
+++ b/mt76x2/mt76x2.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/mt76x2u.h b/mt76x2/mt76x2u.h
index f9d37c6c..27e478ab 100644
--- a/mt76x2/mt76x2u.h
+++ b/mt76x2/mt76x2u.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x2/pci.c b/mt76x2/pci.c
index 23030196..491a3292 100644
--- a/mt76x2/pci.c
+++ b/mt76x2/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/pci_init.c b/mt76x2/pci_init.c
index e38e8e56..bec84f93 100644
--- a/mt76x2/pci_init.c
+++ b/mt76x2/pci_init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/pci_main.c b/mt76x2/pci_main.c
index eb70130d..4033abd6 100644
--- a/mt76x2/pci_main.c
+++ b/mt76x2/pci_main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/pci_mcu.c b/mt76x2/pci_mcu.c
index e5b6282d..daba1638 100644
--- a/mt76x2/pci_mcu.c
+++ b/mt76x2/pci_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/pci_phy.c b/mt76x2/pci_phy.c
index 8831337d..dcf4328c 100644
--- a/mt76x2/pci_phy.c
+++ b/mt76x2/pci_phy.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/mt76x2/phy.c b/mt76x2/phy.c
index e2b4cf30..a5efa13a 100644
--- a/mt76x2/phy.c
+++ b/mt76x2/phy.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
diff --git a/mt76x2/usb.c b/mt76x2/usb.c
index 96cecc57..01cb3b28 100644
--- a/mt76x2/usb.c
+++ b/mt76x2/usb.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x2/usb_init.c b/mt76x2/usb_init.c
index 3b556281..41778a8e 100644
--- a/mt76x2/usb_init.c
+++ b/mt76x2/usb_init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x2/usb_mac.c b/mt76x2/usb_mac.c
index eaa62283..d0cb511a 100644
--- a/mt76x2/usb_mac.c
+++ b/mt76x2/usb_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x2/usb_main.c b/mt76x2/usb_main.c
index 83e7061b..c21fb37f 100644
--- a/mt76x2/usb_main.c
+++ b/mt76x2/usb_main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x2/usb_mcu.c b/mt76x2/usb_mcu.c
index dd22d8af..9102be18 100644
--- a/mt76x2/usb_mcu.c
+++ b/mt76x2/usb_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt76x2/usb_phy.c b/mt76x2/usb_phy.c
index a04a98f5..b63dd7f3 100644
--- a/mt76x2/usb_phy.c
+++ b/mt76x2/usb_phy.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/mt7915/Kconfig b/mt7915/Kconfig
index 193112c4..c24be822 100644
--- a/mt7915/Kconfig
+++ b/mt7915/Kconfig
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 config MT7915E
 	tristate "MediaTek MT7915E (PCIe) support"
 	select MT76_CONNAC_LIB
diff --git a/mt7915/Makefile b/mt7915/Makefile
index c4dca9c1..6b0058ca 100644
--- a/mt7915/Makefile
+++ b/mt7915/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 EXTRA_CFLAGS += -DCONFIG_MT76_LEDS
 obj-$(CONFIG_MT7915E) += mt7915e.o
diff --git a/mt7915/coredump.c b/mt7915/coredump.c
index 5daf2258..6c7273e5 100644
--- a/mt7915/coredump.c
+++ b/mt7915/coredump.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2022 MediaTek Inc. */
 
 #include <linux/devcoredump.h>
diff --git a/mt7915/coredump.h b/mt7915/coredump.h
index 709f8e9c..eb3991ed 100644
--- a/mt7915/coredump.h
+++ b/mt7915/coredump.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2022 MediaTek Inc. */
 
 #ifndef _COREDUMP_H_
diff --git a/mt7915/debugfs.c b/mt7915/debugfs.c
index b287b7d9..be83a0fb 100644
--- a/mt7915/debugfs.c
+++ b/mt7915/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/relay.h>
diff --git a/mt7915/dma.c b/mt7915/dma.c
index 009ef713..aabd3736 100644
--- a/mt7915/dma.c
+++ b/mt7915/dma.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include "mt7915.h"
diff --git a/mt7915/eeprom.c b/mt7915/eeprom.c
index 38dfd5de..eb92cbf1 100644
--- a/mt7915/eeprom.c
+++ b/mt7915/eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/firmware.h>
diff --git a/mt7915/eeprom.h b/mt7915/eeprom.h
index 73611c9d..1dc285c7 100644
--- a/mt7915/eeprom.h
+++ b/mt7915/eeprom.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7915_EEPROM_H
diff --git a/mt7915/init.c b/mt7915/init.c
index 3eae4b9c..044e2e34 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7915/mac.c b/mt7915/mac.c
index 1c0d3101..cfbe4570 100644
--- a/mt7915/mac.c
+++ b/mt7915/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7915/mac.h b/mt7915/mac.h
index 448b1b38..e39f96e0 100644
--- a/mt7915/mac.h
+++ b/mt7915/mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7915_MAC_H
diff --git a/mt7915/main.c b/mt7915/main.c
index 3aa31c5c..95cf1ba9 100644
--- a/mt7915/main.c
+++ b/mt7915/main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7915/mcu.c b/mt7915/mcu.c
index c1fdd3c4..7a5c23d2 100644
--- a/mt7915/mcu.c
+++ b/mt7915/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/fs.h>
diff --git a/mt7915/mcu.h b/mt7915/mcu.h
index 086ad89e..969b01b3 100644
--- a/mt7915/mcu.h
+++ b/mt7915/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7915_MCU_H
diff --git a/mt7915/mmio.c b/mt7915/mmio.c
index 36488aa6..2708b155 100644
--- a/mt7915/mmio.c
+++ b/mt7915/mmio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/kernel.h>
diff --git a/mt7915/mt7915.h b/mt7915/mt7915.h
index 2e94347c..6bdef764 100644
--- a/mt7915/mt7915.h
+++ b/mt7915/mt7915.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7915_H
diff --git a/mt7915/pci.c b/mt7915/pci.c
index 07b0a576..f6b03211 100644
--- a/mt7915/pci.c
+++ b/mt7915/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * Author: Ryder Lee <ryder.lee@mediatek.com>
diff --git a/mt7915/regs.h b/mt7915/regs.h
index c5ec63a2..307bf6a7 100644
--- a/mt7915/regs.h
+++ b/mt7915/regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7915_REGS_H
diff --git a/mt7915/soc.c b/mt7915/soc.c
index ce9371de..57ecb6ea 100644
--- a/mt7915/soc.c
+++ b/mt7915/soc.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2022 MediaTek Inc. */
 
 #include <linux/kernel.h>
diff --git a/mt7915/testmode.c b/mt7915/testmode.c
index d534fff5..d19481af 100644
--- a/mt7915/testmode.c
+++ b/mt7915/testmode.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include "mt7915.h"
diff --git a/mt7915/testmode.h b/mt7915/testmode.h
index 5573ac30..bb1bc568 100644
--- a/mt7915/testmode.h
+++ b/mt7915/testmode.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7915_TESTMODE_H
diff --git a/mt7921/Kconfig b/mt7921/Kconfig
index 7ed51e05..37b5f46e 100644
--- a/mt7921/Kconfig
+++ b/mt7921/Kconfig
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 config MT7921_COMMON
 	tristate
 	select MT792x_LIB
diff --git a/mt7921/Makefile b/mt7921/Makefile
index 849be9e8..2ad3c1cc 100644
--- a/mt7921/Makefile
+++ b/mt7921/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 obj-$(CONFIG_MT7921_COMMON) += mt7921-common.o
 obj-$(CONFIG_MT7921E) += mt7921e.o
diff --git a/mt7921/debugfs.c b/mt7921/debugfs.c
index 616b66a3..4333005b 100644
--- a/mt7921/debugfs.c
+++ b/mt7921/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include "mt7921.h"
diff --git a/mt7921/init.c b/mt7921/init.c
index b9098a73..d8410c77 100644
--- a/mt7921/init.c
+++ b/mt7921/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7921/mac.c b/mt7921/mac.c
index bce26389..03b4960d 100644
--- a/mt7921/mac.c
+++ b/mt7921/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/devcoredump.h>
diff --git a/mt7921/main.c b/mt7921/main.c
index 4e206f4f..6128294f 100644
--- a/mt7921/main.c
+++ b/mt7921/main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7921/mcu.c b/mt7921/mcu.c
index 86bd33b9..8c5e6bdc 100644
--- a/mt7921/mcu.c
+++ b/mt7921/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #include <linux/fs.h>
diff --git a/mt7921/mcu.h b/mt7921/mcu.h
index 2834c6c5..de676b83 100644
--- a/mt7921/mcu.h
+++ b/mt7921/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7921_MCU_H
diff --git a/mt7921/mt7921.h b/mt7921/mt7921.h
index faa0d939..ad92af98 100644
--- a/mt7921/mt7921.h
+++ b/mt7921/mt7921.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7921_H
diff --git a/mt7921/pci.c b/mt7921/pci.c
index 2bc16a4f..1b51ece0 100644
--- a/mt7921/pci.c
+++ b/mt7921/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  */
diff --git a/mt7921/pci_mac.c b/mt7921/pci_mac.c
index 881812ba..5ec08443 100644
--- a/mt7921/pci_mac.c
+++ b/mt7921/pci_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2021 MediaTek Inc. */
 
 #include "mt7921.h"
diff --git a/mt7921/pci_mcu.c b/mt7921/pci_mcu.c
index 4cf1f2f0..8439c849 100644
--- a/mt7921/pci_mcu.c
+++ b/mt7921/pci_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2021 MediaTek Inc. */
 
 #include "mt7921.h"
diff --git a/mt7921/regs.h b/mt7921/regs.h
index 43427a3a..4d9eaf1e 100644
--- a/mt7921/regs.h
+++ b/mt7921/regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc. */
 
 #ifndef __MT7921_REGS_H
diff --git a/mt7921/sdio.c b/mt7921/sdio.c
index d8d36b3c..3421e53d 100644
--- a/mt7921/sdio.c
+++ b/mt7921/sdio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2021 MediaTek Inc.
  *
  */
diff --git a/mt7921/sdio_mac.c b/mt7921/sdio_mac.c
index a9eb6252..416d49e5 100644
--- a/mt7921/sdio_mac.c
+++ b/mt7921/sdio_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2021 MediaTek Inc. */
 
 #include <linux/iopoll.h>
diff --git a/mt7921/sdio_mcu.c b/mt7921/sdio_mcu.c
index 5e4501d7..14e66f3f 100644
--- a/mt7921/sdio_mcu.c
+++ b/mt7921/sdio_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2021 MediaTek Inc. */
 
 #include <linux/kernel.h>
diff --git a/mt7921/testmode.c b/mt7921/testmode.c
index e838d934..e60ee992 100644
--- a/mt7921/testmode.c
+++ b/mt7921/testmode.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7921.h"
 #include "mcu.h"
diff --git a/mt7921/usb.c b/mt7921/usb.c
index 100bdba3..17057e68 100644
--- a/mt7921/usb.c
+++ b/mt7921/usb.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2022 MediaTek Inc.
  *
  * Author: Lorenzo Bianconi <lorenzo@kernel.org>
diff --git a/mt7925/Kconfig b/mt7925/Kconfig
index 5854e95e..f4f7c93c 100644
--- a/mt7925/Kconfig
+++ b/mt7925/Kconfig
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 config MT7925_COMMON
 	tristate
 	select MT792x_LIB
diff --git a/mt7925/Makefile b/mt7925/Makefile
index ade5e647..5d769de9 100644
--- a/mt7925/Makefile
+++ b/mt7925/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 obj-$(CONFIG_MT7925_COMMON) += mt7925-common.o
 obj-$(CONFIG_MT7925E) += mt7925e.o
diff --git a/mt7925/debugfs.c b/mt7925/debugfs.c
index 1e2fc657..e2498659 100644
--- a/mt7925/debugfs.c
+++ b/mt7925/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include "mt7925.h"
diff --git a/mt7925/init.c b/mt7925/init.c
index d7d5afe3..ea397ad4 100644
--- a/mt7925/init.c
+++ b/mt7925/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7925/mac.c b/mt7925/mac.c
index 19c42a7f..643ab03e 100644
--- a/mt7925/mac.c
+++ b/mt7925/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/devcoredump.h>
diff --git a/mt7925/mac.h b/mt7925/mac.h
index b10a9933..83ea9021 100644
--- a/mt7925/mac.h
+++ b/mt7925/mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT7925_MAC_H
diff --git a/mt7925/main.c b/mt7925/main.c
index 0b81b78a..bf0efcf6 100644
--- a/mt7925/main.c
+++ b/mt7925/main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/etherdevice.h>
diff --git a/mt7925/mcu.c b/mt7925/mcu.c
index 7d2d85ac..6ada9f9d 100644
--- a/mt7925/mcu.c
+++ b/mt7925/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/fs.h>
diff --git a/mt7925/mcu.h b/mt7925/mcu.h
index a40764d8..1a11e977 100644
--- a/mt7925/mcu.h
+++ b/mt7925/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT7925_MCU_H
diff --git a/mt7925/mt7925.h b/mt7925/mt7925.h
index 1b165d0d..f46eadce 100644
--- a/mt7925/mt7925.h
+++ b/mt7925/mt7925.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT7925_H
diff --git a/mt7925/pci.c b/mt7925/pci.c
index 8eb1fe10..1de5e41a 100644
--- a/mt7925/pci.c
+++ b/mt7925/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/kernel.h>
diff --git a/mt7925/pci_mac.c b/mt7925/pci_mac.c
index 4578d16b..3072850c 100644
--- a/mt7925/pci_mac.c
+++ b/mt7925/pci_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include "mt7925.h"
diff --git a/mt7925/pci_mcu.c b/mt7925/pci_mcu.c
index f95bc5dc..6cceff88 100644
--- a/mt7925/pci_mcu.c
+++ b/mt7925/pci_mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include "mt7925.h"
diff --git a/mt7925/regs.h b/mt7925/regs.h
index 341987e4..24985bba 100644
--- a/mt7925/regs.h
+++ b/mt7925/regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT7925_REGS_H
diff --git a/mt7925/testmode.c b/mt7925/testmode.c
index 6a41b95c..3abed65e 100644
--- a/mt7925/testmode.c
+++ b/mt7925/testmode.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7925.h"
 #include "mcu.h"
diff --git a/mt7925/usb.c b/mt7925/usb.c
index bf040f34..d9968f03 100644
--- a/mt7925/usb.c
+++ b/mt7925/usb.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/kernel.h>
diff --git a/mt792x.h b/mt792x.h
index 4cce3109..b0e983d2 100644
--- a/mt792x.h
+++ b/mt792x.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT792X_H
diff --git a/mt792x_acpi_sar.c b/mt792x_acpi_sar.c
index d1aebadd..946dd795 100644
--- a/mt792x_acpi_sar.c
+++ b/mt792x_acpi_sar.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/acpi.h>
diff --git a/mt792x_acpi_sar.h b/mt792x_acpi_sar.h
index e45dcd7f..47403307 100644
--- a/mt792x_acpi_sar.h
+++ b/mt792x_acpi_sar.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT7921_ACPI_SAR_H
diff --git a/mt792x_core.c b/mt792x_core.c
index 95e90e8e..8ee592a8 100644
--- a/mt792x_core.c
+++ b/mt792x_core.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/module.h>
diff --git a/mt792x_debugfs.c b/mt792x_debugfs.c
index 9858d9a9..65c37e0c 100644
--- a/mt792x_debugfs.c
+++ b/mt792x_debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include "mt792x.h"
diff --git a/mt792x_dma.c b/mt792x_dma.c
index 69217ce9..1ddec778 100644
--- a/mt792x_dma.c
+++ b/mt792x_dma.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/module.h>
diff --git a/mt792x_mac.c b/mt792x_mac.c
index 3f1d9ba4..71dec930 100644
--- a/mt792x_mac.c
+++ b/mt792x_mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/module.h>
diff --git a/mt792x_regs.h b/mt792x_regs.h
index 458cfd02..acf627ae 100644
--- a/mt792x_regs.h
+++ b/mt792x_regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef __MT792X_REGS_H
diff --git a/mt792x_trace.c b/mt792x_trace.c
index b6f284fb..ffc77d39 100644
--- a/mt792x_trace.c
+++ b/mt792x_trace.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2023 Lorenzo Bianconi <lorenzo@kernel.org>
  */
diff --git a/mt792x_trace.h b/mt792x_trace.h
index 61f2aa26..7b0e3f00 100644
--- a/mt792x_trace.h
+++ b/mt792x_trace.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2023 Lorenzo Bianconi <lorenzo@kernel.org>
  */
diff --git a/mt792x_usb.c b/mt792x_usb.c
index 76272a03..55280845 100644
--- a/mt792x_usb.c
+++ b/mt792x_usb.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc.
  *
  * Author: Lorenzo Bianconi <lorenzo@kernel.org>
diff --git a/mt7996/Kconfig b/mt7996/Kconfig
index 83df1664..8f5daa49 100644
--- a/mt7996/Kconfig
+++ b/mt7996/Kconfig
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 config MT7996E
 	tristate "MediaTek MT7996 (PCIe) support"
 	select MT76_CONNAC_LIB
diff --git a/mt7996/Makefile b/mt7996/Makefile
index 07c8b555..19c0bc02 100644
--- a/mt7996/Makefile
+++ b/mt7996/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 obj-$(CONFIG_MT7996E) += mt7996e.o
 
diff --git a/mt7996/coredump.c b/mt7996/coredump.c
index 303d6e80..5c293ae9 100644
--- a/mt7996/coredump.c
+++ b/mt7996/coredump.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #include <linux/devcoredump.h>
diff --git a/mt7996/coredump.h b/mt7996/coredump.h
index af2ba219..baa2f6f5 100644
--- a/mt7996/coredump.h
+++ b/mt7996/coredump.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2023 MediaTek Inc. */
 
 #ifndef _COREDUMP_H_
diff --git a/mt7996/debugfs.c b/mt7996/debugfs.c
index 0ab827f5..a000275b 100644
--- a/mt7996/debugfs.c
+++ b/mt7996/debugfs.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/dma.c b/mt7996/dma.c
index 659015f9..20aa67ef 100644
--- a/mt7996/dma.c
+++ b/mt7996/dma.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/eeprom.c b/mt7996/eeprom.c
index da3231c9..8f607729 100644
--- a/mt7996/eeprom.c
+++ b/mt7996/eeprom.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/eeprom.h b/mt7996/eeprom.h
index 7a771ca2..9e6f0e04 100644
--- a/mt7996/eeprom.h
+++ b/mt7996/eeprom.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/init.c b/mt7996/init.c
index f1cf1ffb..a9347d93 100644
--- a/mt7996/init.c
+++ b/mt7996/init.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/mac.c b/mt7996/mac.c
index 9501def3..fd3fabc6 100644
--- a/mt7996/mac.c
+++ b/mt7996/mac.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/mac.h b/mt7996/mac.h
index e629324a..4eca37b0 100644
--- a/mt7996/mac.h
+++ b/mt7996/mac.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/main.c b/mt7996/main.c
index 634d3cf3..70973904 100644
--- a/mt7996/main.c
+++ b/mt7996/main.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index afa6a43b..dda01fa6 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/mcu.h b/mt7996/mcu.h
index c841da1c..e0b83ac9 100644
--- a/mt7996/mcu.h
+++ b/mt7996/mcu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/mmio.c b/mt7996/mmio.c
index d14b626e..15d55892 100644
--- a/mt7996/mmio.c
+++ b/mt7996/mmio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index 718e4d4a..d52264b2 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/pci.c b/mt7996/pci.c
index 3f49bbbb..4eb55ffd 100644
--- a/mt7996/pci.c
+++ b/mt7996/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/mt7996/regs.h b/mt7996/regs.h
index 0fa325f8..e48e0e57 100644
--- a/mt7996/regs.h
+++ b/mt7996/regs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2022 MediaTek Inc.
  */
diff --git a/pci.c b/pci.c
index b5031ca7..833923ab 100644
--- a/pci.c
+++ b/pci.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@kernel.org>
  */
diff --git a/scan.c b/scan.c
index 5a875aac..ff9176cd 100644
--- a/scan.c
+++ b/scan.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2024 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/sdio.c b/sdio.c
index 8e957674..8bae77c7 100644
--- a/sdio.c
+++ b/sdio.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * This file is written based on mt76/usb.c.
diff --git a/sdio.h b/sdio.h
index 27d5d207..41b89f3d 100644
--- a/sdio.h
+++ b/sdio.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * Author: Sean Wang <sean.wang@mediatek.com>
diff --git a/sdio_txrx.c b/sdio_txrx.c
index f882d21c..3f314e8e 100644
--- a/sdio_txrx.c
+++ b/sdio_txrx.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 MediaTek Inc.
  *
  * Author: Felix Fietkau <nbd@nbd.name>
diff --git a/testmode.c b/testmode.c
index ca4feccf..6ee160bd 100644
--- a/testmode.c
+++ b/testmode.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
 
 #include <linux/random.h>
diff --git a/testmode.h b/testmode.h
index 1b0bcae8..aeb779e1 100644
--- a/testmode.h
+++ b/testmode.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2020 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/trace.c b/trace.c
index f199fcd2..f17cc010 100644
--- a/trace.c
+++ b/trace.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/trace.h b/trace.h
index 109a07f9..794b957a 100644
--- a/trace.h
+++ b/trace.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/tx.c b/tx.c
index b78ae6a3..b09b7dfa 100644
--- a/tx.c
+++ b/tx.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/usb.c b/usb.c
index f9e67b8c..632ae755 100644
--- a/usb.c
+++ b/usb.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/usb_trace.c b/usb_trace.c
index 9942bdd6..a04585b4 100644
--- a/usb_trace.c
+++ b/usb_trace.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/usb_trace.h b/usb_trace.h
index 7b261ddb..93bb69c6 100644
--- a/usb_trace.h
+++ b/usb_trace.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  */
diff --git a/util.c b/util.c
index 97249ebb..83d3dc42 100644
--- a/util.c
+++ b/util.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/util.h b/util.h
index 037d39a5..617966e8 100644
--- a/util.h
+++ b/util.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ISC */
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  */
diff --git a/wed.c b/wed.c
index 907a8e43..dc0faf23 100644
--- a/wed.c
+++ b/wed.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (C) 2023 Lorenzo Bianconi <lorenzo@kernel.org>
  */