wifi: mt76: relicense to BSD-3-Clause-Clear

MediaTek has asked to switch from the ISC license to BSD-3-Clause-Clear,
in order to improve clarity and the legal integrity of the code.

The BSD-3-Clause license includes the "no endorsement" clause, which is
important for protecting the reputation of the original authors and
contributors by preventing unauthorized use of their names for endorsement
purposes.

This clause is absent in the BSD-2-Clause license, which is more permissive
but lacks this specific protection.

This change also cleans up the license of some Kconfig/Makefile files,
which were accidentally marked as GPL.

The GPL 2.0 remains in use on mt76x0, as well as two source files in mt7615
for which the license situation still needs to be clarified.

Signed-off-by: Felix Fietkau <[email protected]>

mt7615/Kconfig

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-License-Identifier: BSD-3-Clause-Clear
 
 config MT7615_COMMON
 	tristate

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

mt7615/debugfs.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 
 #include "mt7615.h"
 

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 <[email protected]>

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 <[email protected]>

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

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 <[email protected]>

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 <[email protected]>

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

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 <[email protected]>

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 <[email protected]>

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

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>

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

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>
  */

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>

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>

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>

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

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>

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>

mt7615/testmode.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: BSD-3-Clause-Clear
 /* Copyright (C) 2020 Felix Fietkau <[email protected]> */
 
 #include "mt7615.h"

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>
  */

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>

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>