Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/input/ad714x.h b/include/linux/input/ad714x.h
index d388d85..20aea66 100644
--- a/include/linux/input/ad714x.h
+++ b/include/linux/input/ad714x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * include/linux/input/ad714x.h
  *
@@ -7,8 +8,6 @@
  * information.
  *
  * Copyright 2009-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #ifndef __LINUX_INPUT_AD714X_H__
diff --git a/include/linux/input/adp5589.h b/include/linux/input/adp5589.h
index 1a05eee..c0523af 100644
--- a/include/linux/input/adp5589.h
+++ b/include/linux/input/adp5589.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Analog Devices ADP5589/ADP5585 I/O Expander and QWERTY Keypad Controller
  *
  * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef _ADP5589_H
diff --git a/include/linux/input/adxl34x.h b/include/linux/input/adxl34x.h
index 010d981..7efc900 100644
--- a/include/linux/input/adxl34x.h
+++ b/include/linux/input/adxl34x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * include/linux/input/adxl34x.h
  *
@@ -6,8 +7,6 @@
  * device's "struct device" holds this information.
  *
  * Copyright 2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #ifndef __LINUX_INPUT_ADXL34X_H__
diff --git a/include/linux/input/as5011.h b/include/linux/input/as5011.h
index 1affd0d..5fba52a 100644
--- a/include/linux/input/as5011.h
+++ b/include/linux/input/as5011.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _AS5011_H
 #define _AS5011_H
 
 /*
  * Copyright (c) 2010, 2011 Fabien Marteau <fabien.marteau@armadeus.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 struct as5011_platform_data {
diff --git a/include/linux/input/auo-pixcir-ts.h b/include/linux/input/auo-pixcir-ts.h
index 5049f21..ed07769 100644
--- a/include/linux/input/auo-pixcir-ts.h
+++ b/include/linux/input/auo-pixcir-ts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Driver for AUO in-cell touchscreens
  *
@@ -7,17 +8,6 @@
  *
  * Copyright (c) 2008 QUALCOMM Incorporated.
  * Copyright (c) 2008 QUALCOMM USA, INC.
- *
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef __AUO_PIXCIR_TS_H__
diff --git a/include/linux/input/bu21013.h b/include/linux/input/bu21013.h
deleted file mode 100644
index 6230d76..0000000
--- a/include/linux/input/bu21013.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
- * License terms:GNU General Public License (GPL) version 2
- */
-
-#ifndef _BU21013_H
-#define _BU21013_H
-
-/**
- * struct bu21013_platform_device - Handle the platform data
- * @touch_x_max: touch x max
- * @touch_y_max: touch y max
- * @cs_pin: chip select pin
- * @touch_pin: touch gpio pin
- * @ext_clk: external clock flag
- * @x_flip: x flip flag
- * @y_flip: y flip flag
- * @wakeup: wakeup flag
- *
- * This is used to handle the platform data
- */
-struct bu21013_platform_device {
-	int touch_x_max;
-	int touch_y_max;
-	unsigned int cs_pin;
-	unsigned int touch_pin;
-	bool ext_clk;
-	bool x_flip;
-	bool y_flip;
-	bool wakeup;
-};
-
-#endif
diff --git a/include/linux/input/cma3000.h b/include/linux/input/cma3000.h
index cbbaac2..aaab51f 100644
--- a/include/linux/input/cma3000.h
+++ b/include/linux/input/cma3000.h
@@ -1,20 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * VTI CMA3000_Dxx Accelerometer driver
  *
  * Copyright (C) 2010 Texas Instruments
  * Author: Hemanth V <hemanthv@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _LINUX_CMA3000_H
diff --git a/include/linux/input/cyttsp.h b/include/linux/input/cyttsp.h
index 586c8c9..118b9af 100644
--- a/include/linux/input/cyttsp.h
+++ b/include/linux/input/cyttsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Header file for:
  * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers.
@@ -9,22 +10,7 @@
  * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
  * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2, and only version 2, as published by the
- * Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
  * Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com)
- *
  */
 #ifndef _CYTTSP_H_
 #define _CYTTSP_H_
diff --git a/include/linux/input/elan-i2c-ids.h b/include/linux/input/elan-i2c-ids.h
new file mode 100644
index 0000000..1ecb6b4
--- /dev/null
+++ b/include/linux/input/elan-i2c-ids.h
@@ -0,0 +1,76 @@
+/*
+ * Elan I2C/SMBus Touchpad device whitelist
+ *
+ * Copyright (c) 2013 ELAN Microelectronics Corp.
+ *
+ * Author: æ維 (Duson Lin) <dusonlin@emc.com.tw>
+ * Author: KT Liao <kt.liao@emc.com.tw>
+ * Version: 1.6.3
+ *
+ * Based on cyapa driver:
+ * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
+ * copyright (c) 2011-2012 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+#ifndef __ELAN_I2C_IDS_H
+#define __ELAN_I2C_IDS_H
+
+#include <linux/mod_devicetable.h>
+
+static const struct acpi_device_id elan_acpi_id[] = {
+	{ "ELAN0000", 0 },
+	{ "ELAN0100", 0 },
+	{ "ELAN0600", 0 },
+	{ "ELAN0601", 0 },
+	{ "ELAN0602", 0 },
+	{ "ELAN0603", 0 },
+	{ "ELAN0604", 0 },
+	{ "ELAN0605", 0 },
+	{ "ELAN0606", 0 },
+	{ "ELAN0607", 0 },
+	{ "ELAN0608", 0 },
+	{ "ELAN0609", 0 },
+	{ "ELAN060B", 0 },
+	{ "ELAN060C", 0 },
+	{ "ELAN060F", 0 },
+	{ "ELAN0610", 0 },
+	{ "ELAN0611", 0 },
+	{ "ELAN0612", 0 },
+	{ "ELAN0615", 0 },
+	{ "ELAN0616", 0 },
+	{ "ELAN0617", 0 },
+	{ "ELAN0618", 0 },
+	{ "ELAN0619", 0 },
+	{ "ELAN061A", 0 },
+/*	{ "ELAN061B", 0 }, not working on the Lenovo Legion Y7000 */
+	{ "ELAN061C", 0 },
+	{ "ELAN061D", 0 },
+	{ "ELAN061E", 0 },
+	{ "ELAN061F", 0 },
+	{ "ELAN0620", 0 },
+	{ "ELAN0621", 0 },
+	{ "ELAN0622", 0 },
+	{ "ELAN0623", 0 },
+	{ "ELAN0624", 0 },
+	{ "ELAN0625", 0 },
+	{ "ELAN0626", 0 },
+	{ "ELAN0627", 0 },
+	{ "ELAN0628", 0 },
+	{ "ELAN0629", 0 },
+	{ "ELAN062A", 0 },
+	{ "ELAN062B", 0 },
+	{ "ELAN062C", 0 },
+	{ "ELAN062D", 0 },
+	{ "ELAN0631", 0 },
+	{ "ELAN0632", 0 },
+	{ "ELAN1000", 0 },
+	{ }
+};
+
+#endif /* __ELAN_I2C_IDS_H */
diff --git a/include/linux/input/ili210x.h b/include/linux/input/ili210x.h
deleted file mode 100644
index b76e7c1..0000000
--- a/include/linux/input/ili210x.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ILI210X_H
-#define _ILI210X_H
-
-struct ili210x_platform_data {
-	unsigned long irq_flags;
-	unsigned int poll_period;
-	bool (*get_pendown_state)(void);
-};
-
-#endif
diff --git a/include/linux/input/kxtj9.h b/include/linux/input/kxtj9.h
index d415579..46e2319 100644
--- a/include/linux/input/kxtj9.h
+++ b/include/linux/input/kxtj9.h
@@ -1,20 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Kionix, Inc.
  * Written by Chris Hudson <chudson@kionix.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA
  */
 
 #ifndef __KXTJ9_H__
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index 3f4bf60..9e409bb 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _INPUT_MT_H
 #define _INPUT_MT_H
 
@@ -5,10 +6,6 @@
  * Input Multitouch Library
  *
  * Copyright (c) 2010 Henrik Rydberg
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <linux/input.h>
diff --git a/include/linux/input/navpoint.h b/include/linux/input/navpoint.h
index 45050eb..d464ffb 100644
--- a/include/linux/input/navpoint.h
+++ b/include/linux/input/navpoint.h
@@ -1,9 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  *  Copyright (C) 2012 Paul Parsons <lost.distance@yahoo.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 struct navpoint_platform_data {
diff --git a/include/linux/input/samsung-keypad.h b/include/linux/input/samsung-keypad.h
index f25619b..ab6b971 100644
--- a/include/linux/input/samsung-keypad.h
+++ b/include/linux/input/samsung-keypad.h
@@ -1,13 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Samsung Keypad platform data definitions
  *
  * Copyright (C) 2010 Samsung Electronics Co.Ltd
  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #ifndef __SAMSUNG_KEYPAD_H
diff --git a/include/linux/input/sparse-keymap.h b/include/linux/input/sparse-keymap.h
index c7346e3..d25d145 100644
--- a/include/linux/input/sparse-keymap.h
+++ b/include/linux/input/sparse-keymap.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _SPARSE_KEYMAP_H
 #define _SPARSE_KEYMAP_H
 
 /*
  * Copyright (c) 2009 Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #define KE_END		0	/* Indicates end of keymap */
diff --git a/include/linux/input/touchscreen.h b/include/linux/input/touchscreen.h
index 09d22cc..fe66e2b 100644
--- a/include/linux/input/touchscreen.h
+++ b/include/linux/input/touchscreen.h
@@ -1,9 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2014 Sebastian Reichel <sre@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #ifndef _TOUCHSCREEN_H