Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

Pull x86 platform driver updates from Matthew Garrett:
"Mostly relatively small updates, along with some hardware enablement
for Sony hardware and a pile of updates to Google's Chromebook driver"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (49 commits)
ideapad-laptop: Depend on BACKLIGHT_CLASS_DEVICE instead of selecting it
ideapad: depends on backlight subsystem and update comment
Platform: x86: chromeos_laptop - add i915 gmbuses to adapter names
Platform: x86: chromeos_laptop - Add isl light sensor for Pixel
Platform: x86: chromeos_laptop - Add a more general add_i2c_device
Platform: x86: chromeos_laptop - Add Pixel Touchscreen
Platform: x86: chromeos_laptop - Add support for probing devices
Platform: x86: chromeos_laptop - Add Pixel Trackpad
hp-wmi: fix handling of platform device
sony-laptop: leak in error handling sony_nc_lid_resume_setup()
hp-wmi: Add support for SMBus hotkeys
asus-wmi: Fix unused function build warning
acer-wmi: avoid the warning of 'devices' may be used uninitialized
drivers/platform/x86/thinkpad_acpi.c: Handle HKEY event 0x6040
Platform: x86: chromeos_laptop - Add HP Pavilion 14
Platform: x86: chromeos_laptop - Add Taos tsl2583 device
Platform: x86: chromeos_laptop - Add Taos tsl2563 device
Platform: x86: chromeos_laptop - Add Acer C7 trackpad
Platform: x86: chromeos_laptop - Rename setup_lumpy_tp to setup_cyapa_smbus_tp
asus-laptop: always report brightness key events
...

Documentation/ABI/testing/sysfs-platform-msi-laptop

···
+What:		/sys/devices/platform/msi-laptop-pf/lcd_level
+Date:		Oct 2006
+KernelVersion:	2.6.19
+Contact:	"Lennart Poettering <[e-mail]>"
+Description:
+		Screen brightness: contains a single integer in the range 0..8.
+
+What:		/sys/devices/platform/msi-laptop-pf/auto_brightness
+Date:		Oct 2006
+KernelVersion:	2.6.19
+Contact:	"Lennart Poettering <[e-mail]>"
+Description:
+		Enable automatic brightness control: contains either 0 or 1. If
+		set to 1 the hardware adjusts the screen brightness
+		automatically when the power cord is plugged/unplugged.
+
+What:		/sys/devices/platform/msi-laptop-pf/wlan
+Date:		Oct 2006
+KernelVersion:	2.6.19
+Contact:	"Lennart Poettering <[e-mail]>"
+Description:
+		WLAN subsystem enabled: contains either 0 or 1.
+
+What:		/sys/devices/platform/msi-laptop-pf/bluetooth
+Date:		Oct 2006
+KernelVersion:	2.6.19
+Contact:	"Lennart Poettering <[e-mail]>"
+Description:
+		Bluetooth subsystem enabled: contains either 0 or 1. Please
+		note that this file is constantly 0 if no Bluetooth hardware is
+		available.
+
+What:		/sys/devices/platform/msi-laptop-pf/touchpad
+Date:		Nov 2012
+KernelVersion:	3.8
+Contact:	"Maxim Mikityanskiy <[e-mail]>"
+Description:
+		Contains either 0 or 1 and indicates if touchpad is turned on.
+		Touchpad state can only be toggled by pressing Fn+F3.
+
+What:		/sys/devices/platform/msi-laptop-pf/turbo_mode
+Date:		Nov 2012
+KernelVersion:	3.8
+Contact:	"Maxim Mikityanskiy <[e-mail]>"
+Description:
+		Contains either 0 or 1 and indicates if turbo mode is turned
+		on. In turbo mode power LED is orange and processor is
+		overclocked. Turbo mode is available only if charging. It is
+		only possible to toggle turbo mode state by pressing Fn+F10,
+		and there is a few seconds cooldown between subsequent toggles.
+		If user presses Fn+F10 too frequent, turbo mode state is not
+		changed.
+
+What:		/sys/devices/platform/msi-laptop-pf/eco_mode
+Date:		Nov 2012
+KernelVersion:	3.8
+Contact:	"Maxim Mikityanskiy <[e-mail]>"
+Description:
+		Contains either 0 or 1 and indicates if ECO mode is turned on.
+		In ECO mode power LED is green and userspace should do some
+		powersaving actions. ECO mode is available only on battery
+		power. ECO mode can only be toggled by pressing Fn+F10.
+
+What:		/sys/devices/platform/msi-laptop-pf/turbo_cooldown
+Date:		Nov 2012
+KernelVersion:	3.8
+Contact:	"Maxim Mikityanskiy <[e-mail]>"
+Description:
+		Contains value in range 0..3:
+			* 0 -> Turbo mode is off
+			* 1 -> Turbo mode is on, cannot be turned off yet
+			* 2 -> Turbo mode is off, cannot be turned on yet
+			* 3 -> Turbo mode is on
+
+What:		/sys/devices/platform/msi-laptop-pf/auto_fan
+Date:		Nov 2012
+KernelVersion:	3.8
+Contact:	"Maxim Mikityanskiy <[e-mail]>"
+Description:
+		Contains either 0 or 1 and indicates if fan speed is controlled
+		automatically (1) or fan runs at maximal speed (0). Can be
+		toggled in software.
+

drivers/platform/x86/Kconfig

···
 
 	  If you have an ACPI-compatible ASUS laptop, say Y or M here.
 
+config CHROMEOS_LAPTOP
+	tristate "Chrome OS Laptop"
+	depends on I2C
+	depends on DMI
+	---help---
+	  This driver instantiates i2c and smbus devices such as
+	  light sensors and touchpads.
+
+	  If you have a supported Chromebook, choose Y or M here.
+	  The module will be called chromeos_laptop.
+
 config DELL_LAPTOP
 	tristate "Dell Laptop Extras"
 	depends on X86
···
 	depends on ACPI
 	depends on RFKILL && INPUT
 	depends on SERIO_I8042
+	depends on BACKLIGHT_CLASS_DEVICE
 	select INPUT_SPARSEKMAP
 	help
-	  This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.
+	  This is a driver for Lenovo IdeaPad netbooks contains drivers for
+	  rfkill switch, hotkey, fan control and backlight control.
 
 config THINKPAD_ACPI
 	tristate "ThinkPad ACPI Laptop Extras"

drivers/platform/x86/Makefile

···
 obj-$(CONFIG_INTEL_OAKTRAIL)	+= intel_oaktrail.o
 obj-$(CONFIG_SAMSUNG_Q10)	+= samsung-q10.o
 obj-$(CONFIG_APPLE_GMUX)	+= apple-gmux.o
+obj-$(CONFIG_CHROMEOS_LAPTOP)	+= chromeos_laptop.o

drivers/platform/x86/acer-wmi.c

···
 		},
 		.driver_data = &quirk_fujitsu_amilo_li_1718,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "Lenovo Ideapad S205-10382JG",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
+		},
+		.driver_data = &quirk_lenovo_ideapad_s205,
+	},
+	{
+		.callback = dmi_matched,
+		.ident = "Lenovo Ideapad S205-1038DPG",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
+		},
+		.driver_data = &quirk_lenovo_ideapad_s205,
+	},
 	{}
 };
 
···
 			devices = *((u32 *) obj->buffer.pointer);
 		} else if (obj->type == ACPI_TYPE_INTEGER) {
 			devices = (u32) obj->integer.value;
+		} else {
+			kfree(out.pointer);
+			return AE_ERROR;
 		}
 	} else {
 		kfree(out.pointer);

drivers/platform/x86/asus-laptop.c

···
 /*
  * Some events we use, same for all Asus
  */
-#define ATKD_BR_UP	0x10	/* (event & ~ATKD_BR_UP) = brightness level */
-#define ATKD_BR_DOWN	0x20	/* (event & ~ATKD_BR_DOWN) = britghness level */
-#define ATKD_BR_MIN	ATKD_BR_UP
-#define ATKD_BR_MAX	(ATKD_BR_DOWN | 0xF)	/* 0x2f */
+#define ATKD_BRNUP_MIN		0x10
+#define ATKD_BRNUP_MAX		0x1f
+#define ATKD_BRNDOWN_MIN	0x20
+#define ATKD_BRNDOWN_MAX	0x2f
+#define ATKD_BRNDOWN		0x20
+#define ATKD_BRNUP		0x2f
 #define ATKD_LCD_ON	0x33
 #define ATKD_LCD_OFF	0x34
 
···
 	{KE_KEY, 0x17, { KEY_ZOOM } },
 	{KE_KEY, 0x1f, { KEY_BATTERY } },
 	/* End of Lenovo SL Specific keycodes */
+	{KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
+	{KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
 	{KE_KEY, 0x30, { KEY_VOLUMEUP } },
 	{KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 	{KE_KEY, 0x32, { KEY_MUTE } },
-	{KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } },
-	{KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } },
+	{KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
+	{KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
 	{KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
 	{KE_KEY, 0x41, { KEY_NEXTSONG } },
-	{KE_KEY, 0x43, { KEY_STOPCD } },
+	{KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
 	{KE_KEY, 0x45, { KEY_PLAYPAUSE } },
-	{KE_KEY, 0x4c, { KEY_MEDIA } },
+	{KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
 	{KE_KEY, 0x50, { KEY_EMAIL } },
 	{KE_KEY, 0x51, { KEY_WWW } },
 	{KE_KEY, 0x55, { KEY_CALC } },
+	{KE_IGNORE, 0x57, },  /* Battery mode */
+	{KE_IGNORE, 0x58, },  /* AC mode */
 	{KE_KEY, 0x5C, { KEY_SCREENLOCK } },  /* Screenlock */
-	{KE_KEY, 0x5D, { KEY_WLAN } },
-	{KE_KEY, 0x5E, { KEY_WLAN } },
-	{KE_KEY, 0x5F, { KEY_WLAN } },
-	{KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
-	{KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
-	{KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
-	{KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
-	{KE_KEY, 0x6B, { KEY_F13 } }, /* Lock Touchpad */
+	{KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
+	{KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
+	{KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
+	{KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
+	{KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
+	{KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
+	{KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
+	{KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
+	{KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
+	{KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
+	{KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
+	{KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
 	{KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
 	{KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
-	{KE_KEY, 0x7E, { KEY_BLUETOOTH } },
-	{KE_KEY, 0x7D, { KEY_BLUETOOTH } },
+	{KE_IGNORE, 0x6E, },  /* Low Battery notification */
+	{KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
+	{KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
 	{KE_KEY, 0x82, { KEY_CAMERA } },
-	{KE_KEY, 0x88, { KEY_WLAN  } },
-	{KE_KEY, 0x8A, { KEY_PROG1 } },
+	{KE_KEY, 0x88, { KEY_RFKILL  } }, /* Radio Toggle Key */
+	{KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
+	{KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
+	{KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
+	{KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
+	{KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
+	{KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
+	{KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
+	{KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
+	{KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
 	{KE_KEY, 0x95, { KEY_MEDIA } },
 	{KE_KEY, 0x99, { KEY_PHONE } },
-	{KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
-	{KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
-	{KE_KEY, 0xb5, { KEY_CALC } },
+	{KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
+	{KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
+	{KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
+	{KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
+	{KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
+	{KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
+	{KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
+	{KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
+	{KE_KEY, 0xB5, { KEY_CALC } },
+	{KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
+	{KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 	{KE_END, 0},
 };
 
···
 					dev_name(&asus->device->dev), event,
 					count);
 
-	/* Brightness events are special */
-	if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) {
+	if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
+		event = ATKD_BRNUP;
+	else if (event >= ATKD_BRNDOWN_MIN &&
+		 event <= ATKD_BRNDOWN_MAX)
+		event = ATKD_BRNDOWN;
 
-		/* Ignore them completely if the acpi video driver is used */
+	/* Brightness events are special */
+	if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
 		if (asus->backlight_device != NULL) {
 			/* Update the backlight device. */
 			asus_backlight_notify(asus);
+			return ;
 		}
-		return ;
 	}
 
 	/* Accelerometer "coarse orientation change" event */

drivers/platform/x86/asus-nb-wmi.c

···
 	.wapf = 0,
 };
 
+/*
+ * For those machines that need software to control bt/wifi status
+ * and can't adjust brightness through ACPI interface
+ * and have duplicate events(ACPI and WMI) for display toggle
+ */
+static struct quirk_entry quirk_asus_x55u = {
+	.wapf = 4,
+	.wmi_backlight_power = true,
+	.no_display_toggle = true,
+};
+
 static struct quirk_entry quirk_asus_x401u = {
 	.wapf = 4,
 };
···
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
 		},
+		.driver_data = &quirk_asus_x55u,
+	},
+	{
+		.callback = dmi_matched,
+		.ident = "ASUSTeK COMPUTER INC. X401A",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
+		},
 		.driver_data = &quirk_asus_x401u,
 	},
 	{
···
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
+		},
+		.driver_data = &quirk_asus_x55u,
+	},
+	{
+		.callback = dmi_matched,
+		.ident = "ASUSTeK COMPUTER INC. X501A",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
 		},
 		.driver_data = &quirk_asus_x401u,
 	},
···
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
 		},
-		.driver_data = &quirk_asus_x401u,
+		.driver_data = &quirk_asus_x55u,
 	},
 	{
 		.callback = dmi_matched,
···
 }
 
 static const struct key_entry asus_nb_wmi_keymap[] = {
+	{ KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
+	{ KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
 	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
 	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 	{ KE_KEY, 0x32, { KEY_MUTE } },
···
 	{ KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
 	{ KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
 	{ KE_KEY, 0x41, { KEY_NEXTSONG } },
-	{ KE_KEY, 0x43, { KEY_STOPCD } },
+	{ KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
 	{ KE_KEY, 0x45, { KEY_PLAYPAUSE } },
-	{ KE_KEY, 0x4c, { KEY_MEDIA } },
+	{ KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
 	{ KE_KEY, 0x50, { KEY_EMAIL } },
 	{ KE_KEY, 0x51, { KEY_WWW } },
 	{ KE_KEY, 0x55, { KEY_CALC } },
···
 	{ KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
 	{ KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
 	{ KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
-	{ KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
-	{ KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
-	{ KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
-	{ KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
+	{ KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
+	{ KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
+	{ KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
+	{ KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
+	{ KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
+	{ KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
+	{ KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
 	{ KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
-	{ KE_KEY, 0x7D, { KEY_BLUETOOTH } },
-	{ KE_KEY, 0x7E, { KEY_BLUETOOTH } },
+	{ KE_IGNORE, 0x6E, },  /* Low Battery notification */
+	{ KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
+	{ KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
 	{ KE_KEY, 0x82, { KEY_CAMERA } },
-	{ KE_KEY, 0x88, { KEY_RFKILL  } },
-	{ KE_KEY, 0x8A, { KEY_PROG1 } },
+	{ KE_KEY, 0x88, { KEY_RFKILL  } }, /* Radio Toggle Key */
+	{ KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
+	{ KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
+	{ KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
+	{ KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
+	{ KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
+	{ KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
+	{ KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
+	{ KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
+	{ KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
 	{ KE_KEY, 0x95, { KEY_MEDIA } },
 	{ KE_KEY, 0x99, { KEY_PHONE } },
 	{ KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
 	{ KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
 	{ KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
 	{ KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
-	{ KE_KEY, 0xb5, { KEY_CALC } },
-	{ KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
-	{ KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
+	{ KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
+	{ KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
+	{ KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
+	{ KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
+	{ KE_KEY, 0xB5, { KEY_CALC } },
+	{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
+	{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 	{ KE_END, 0},
 };
 

drivers/platform/x86/asus-wmi.c

···
 	struct device *hwmon_device;
 	struct platform_device *platform_device;
 
+	struct led_classdev wlan_led;
+	int wlan_led_wk;
 	struct led_classdev tpd_led;
 	int tpd_led_wk;
 	struct led_classdev kbd_led;
···
 	struct workqueue_struct *led_workqueue;
 	struct work_struct tpd_led_work;
 	struct work_struct kbd_led_work;
+	struct work_struct wlan_led_work;
 
 	struct asus_rfkill wlan;
 	struct asus_rfkill bluetooth;
···
 	return value;
 }
 
+static int wlan_led_unknown_state(struct asus_wmi *asus)
+{
+	u32 result;
+
+	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
+
+	return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
+}
+
+static int wlan_led_presence(struct asus_wmi *asus)
+{
+	u32 result;
+
+	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
+
+	return result & ASUS_WMI_DSTS_PRESENCE_BIT;
+}
+
+static void wlan_led_update(struct work_struct *work)
+{
+	int ctrl_param;
+	struct asus_wmi *asus;
+
+	asus = container_of(work, struct asus_wmi, wlan_led_work);
+
+	ctrl_param = asus->wlan_led_wk;
+	asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
+}
+
+static void wlan_led_set(struct led_classdev *led_cdev,
+			 enum led_brightness value)
+{
+	struct asus_wmi *asus;
+
+	asus = container_of(led_cdev, struct asus_wmi, wlan_led);
+
+	asus->wlan_led_wk = !!value;
+	queue_work(asus->led_workqueue, &asus->wlan_led_work);
+}
+
+static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
+{
+	struct asus_wmi *asus;
+	u32 result;
+
+	asus = container_of(led_cdev, struct asus_wmi, wlan_led);
+	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
+
+	return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
+}
+
 static void asus_wmi_led_exit(struct asus_wmi *asus)
 {
 	if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
 		led_classdev_unregister(&asus->kbd_led);
 	if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
 		led_classdev_unregister(&asus->tpd_led);
+	if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
+		led_classdev_unregister(&asus->wlan_led);
 	if (asus->led_workqueue)
 		destroy_workqueue(asus->led_workqueue);
 }
···
 
 		rv = led_classdev_register(&asus->platform_device->dev,
 					   &asus->kbd_led);
+		if (rv)
+			goto error;
+	}
+
+	if (wlan_led_presence(asus)) {
+		INIT_WORK(&asus->wlan_led_work, wlan_led_update);
+
+		asus->wlan_led.name = "asus::wlan";
+		asus->wlan_led.brightness_set = wlan_led_set;
+		if (!wlan_led_unknown_state(asus))
+			asus->wlan_led.brightness_get = wlan_led_get;
+		asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
+		asus->wlan_led.max_brightness = 1;
+		asus->wlan_led.default_trigger = "asus-wlan";
+
+		rv = led_classdev_register(&asus->platform_device->dev,
+					   &asus->wlan_led);
 	}
 
 error:
···
 
 	if (!*rfkill)
 		return -EINVAL;
+
+	if (dev_id == ASUS_WMI_DEVID_WLAN)
+		rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
 
 	rfkill_init_sw_state(*rfkill, !result);
 	result = rfkill_register(*rfkill);
···
 	asus->backlight_device = NULL;
 }
 
+static int is_display_toggle(int code)
+{
+	/* display toggle keys */
+	if ((code >= 0x61 && code <= 0x67) ||
+	    (code >= 0x8c && code <= 0x93) ||
+	    (code >= 0xa0 && code <= 0xa7) ||
+	    (code >= 0xd0 && code <= 0xd5))
+		return 1;
+
+	return 0;
+}
+
 static void asus_wmi_notify(u32 value, void *context)
 {
 	struct asus_wmi *asus = context;
···
 	}
 
 	if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
-		code = NOTIFY_BRNUP_MIN;
+		code = ASUS_WMI_BRN_UP;
 	else if (code >= NOTIFY_BRNDOWN_MIN &&
 		 code <= NOTIFY_BRNDOWN_MAX)
-		code = NOTIFY_BRNDOWN_MIN;
+		code = ASUS_WMI_BRN_DOWN;
 
-	if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
-		if (!acpi_video_backlight_support())
+	if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
+		if (!acpi_video_backlight_support()) {
 			asus_wmi_backlight_notify(asus, orig_code);
-	} else if (!sparse_keymap_report_event(asus->inputdev, code,
-					       key_value, autorelease))
+			goto exit;
+		}
+	}
+
+	if (is_display_toggle(code) &&
+	    asus->driver->quirks->no_display_toggle)
+		goto exit;
+
+	if (!sparse_keymap_report_event(asus->inputdev, code,
+					key_value, autorelease))
 		pr_info("Unknown key %x pressed\n", code);
 
 exit:

drivers/platform/x86/asus-wmi.h

···
 #include <linux/platform_device.h>
 
 #define ASUS_WMI_KEY_IGNORE (-1)
+#define ASUS_WMI_BRN_DOWN	0x20
+#define ASUS_WMI_BRN_UP		0x2f
 
 struct module;
 struct key_entry;
···
 	bool store_backlight_power;
 	bool wmi_backlight_power;
 	int wapf;
+	/*
+	 * For machines with AMD graphic chips, it will send out WMI event
+	 * and ACPI interrupt at the same time while hitting the hotkey.
+	 * To simplify the problem, we just have to ignore the WMI event,
+	 * and let the ACPI interrupt to send out the key event.
+	 */
+	int no_display_toggle;
 };
 
 struct asus_wmi_driver {

drivers/platform/x86/chromeos_laptop.c

···
+/*
+ *  chromeos_laptop.c - Driver to instantiate Chromebook i2c/smbus devices.
+ *
+ *  Author : Benson Leung <[e-mail]>
+ *
+ *  Copyright (C) 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 as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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
+ *
+ */
+
+#include <linux/dmi.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+
+#define ATMEL_TP_I2C_ADDR	0x4b
+#define ATMEL_TP_I2C_BL_ADDR	0x25
+#define ATMEL_TS_I2C_ADDR	0x4a
+#define ATMEL_TS_I2C_BL_ADDR	0x26
+#define CYAPA_TP_I2C_ADDR	0x67
+#define ISL_ALS_I2C_ADDR	0x44
+#define TAOS_ALS_I2C_ADDR	0x29
+
+static struct i2c_client *als;
+static struct i2c_client *tp;
+static struct i2c_client *ts;
+
+const char *i2c_adapter_names[] = {
+	"SMBus I801 adapter",
+	"i915 gmbus vga",
+	"i915 gmbus panel",
+};
+
+/* Keep this enum consistent with i2c_adapter_names */
+enum i2c_adapter_type {
+	I2C_ADAPTER_SMBUS = 0,
+	I2C_ADAPTER_VGADDC,
+	I2C_ADAPTER_PANEL,
+};
+
+static struct i2c_board_info __initdata cyapa_device = {
+	I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR),
+	.flags		= I2C_CLIENT_WAKE,
+};
+
+static struct i2c_board_info __initdata isl_als_device = {
+	I2C_BOARD_INFO("isl29018", ISL_ALS_I2C_ADDR),
+};
+
+static struct i2c_board_info __initdata tsl2583_als_device = {
+	I2C_BOARD_INFO("tsl2583", TAOS_ALS_I2C_ADDR),
+};
+
+static struct i2c_board_info __initdata tsl2563_als_device = {
+	I2C_BOARD_INFO("tsl2563", TAOS_ALS_I2C_ADDR),
+};
+
+static struct i2c_board_info __initdata atmel_224s_tp_device = {
+	I2C_BOARD_INFO("atmel_mxt_tp", ATMEL_TP_I2C_ADDR),
+	.platform_data = NULL,
+	.flags		= I2C_CLIENT_WAKE,
+};
+
+static struct i2c_board_info __initdata atmel_1664s_device = {
+	I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR),
+	.platform_data = NULL,
+	.flags		= I2C_CLIENT_WAKE,
+};
+
+static struct i2c_client __init *__add_probed_i2c_device(
+		const char *name,
+		int bus,
+		struct i2c_board_info *info,
+		const unsigned short *addrs)
+{
+	const struct dmi_device *dmi_dev;
+	const struct dmi_dev_onboard *dev_data;
+	struct i2c_adapter *adapter;
+	struct i2c_client *client;
+
+	if (bus < 0)
+		return NULL;
+	/*
+	 * If a name is specified, look for irq platform information stashed
+	 * in DMI_DEV_TYPE_DEV_ONBOARD by the Chrome OS custom system firmware.
+	 */
+	if (name) {
+		dmi_dev = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, name, NULL);
+		if (!dmi_dev) {
+			pr_err("%s failed to dmi find device %s.\n",
+			       __func__,
+			       name);
+			return NULL;
+		}
+		dev_data = (struct dmi_dev_onboard *)dmi_dev->device_data;
+		if (!dev_data) {
+			pr_err("%s failed to get data from dmi for %s.\n",
+			       __func__, name);
+			return NULL;
+		}
+		info->irq = dev_data->instance;
+	}
+
+	adapter = i2c_get_adapter(bus);
+	if (!adapter) {
+		pr_err("%s failed to get i2c adapter %d.\n", __func__, bus);
+		return NULL;
+	}
+
+	/* add the i2c device */
+	client = i2c_new_probed_device(adapter, info, addrs, NULL);
+	if (!client)
+		pr_err("%s failed to register device %d-%02x\n",
+		       __func__, bus, info->addr);
+	else
+		pr_debug("%s added i2c device %d-%02x\n",
+			 __func__, bus, info->addr);
+
+	i2c_put_adapter(adapter);
+	return client;
+}
+
+static int __init __find_i2c_adap(struct device *dev, void *data)
+{
+	const char *name = data;
+	static const char *prefix = "i2c-";
+	struct i2c_adapter *adapter;
+	if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0)
+		return 0;
+	adapter = to_i2c_adapter(dev);
+	return (strncmp(adapter->name, name, strlen(name)) == 0);
+}
+
+static int __init find_i2c_adapter_num(enum i2c_adapter_type type)
+{
+	struct device *dev = NULL;
+	struct i2c_adapter *adapter;
+	const char *name = i2c_adapter_names[type];
+	/* find the adapter by name */
+	dev = bus_find_device(&i2c_bus_type, NULL, (void *)name,
+			      __find_i2c_adap);
+	if (!dev) {
+		pr_err("%s: i2c adapter %s not found on system.\n", __func__,
+		       name);
+		return -ENODEV;
+	}
+	adapter = to_i2c_adapter(dev);
+	return adapter->nr;
+}
+
+/*
+ * Takes a list of addresses in addrs as such :
+ * { addr1, ... , addrn, I2C_CLIENT_END };
+ * add_probed_i2c_device will use i2c_new_probed_device
+ * and probe for devices at all of the addresses listed.
+ * Returns NULL if no devices found.
+ * See Documentation/i2c/instantiating-devices for more information.
+ */
+static __init struct i2c_client *add_probed_i2c_device(
+		const char *name,
+		enum i2c_adapter_type type,
+		struct i2c_board_info *info,
+		const unsigned short *addrs)
+{
+	return __add_probed_i2c_device(name,
+				       find_i2c_adapter_num(type),
+				       info,
+				       addrs);
+}
+
+/*
+ * Probes for a device at a single address, the one provided by
+ * info->addr.
+ * Returns NULL if no device found.
+ */
+static __init struct i2c_client *add_i2c_device(const char *name,
+						enum i2c_adapter_type type,
+						struct i2c_board_info *info)
+{
+	const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END };
+	return __add_probed_i2c_device(name,
+				       find_i2c_adapter_num(type),
+				       info,
+				       addr_list);
+}
+
+
+static struct i2c_client __init *add_smbus_device(const char *name,
+						  struct i2c_board_info *info)
+{
+	return add_i2c_device(name, I2C_ADAPTER_SMBUS, info);
+}
+
+static int __init setup_cyapa_smbus_tp(const struct dmi_system_id *id)
+{
+	/* add cyapa touchpad on smbus */
+	tp = add_smbus_device("trackpad", &cyapa_device);
+	return 0;
+}
+
+static int __init setup_atmel_224s_tp(const struct dmi_system_id *id)
+{
+	const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR,
+					     ATMEL_TP_I2C_ADDR,
+					     I2C_CLIENT_END };
+
+	/* add atmel mxt touchpad on VGA DDC GMBus */
+	tp = add_probed_i2c_device("trackpad", I2C_ADAPTER_VGADDC,
+				   &atmel_224s_tp_device, addr_list);
+	return 0;
+}
+
+static int __init setup_atmel_1664s_ts(const struct dmi_system_id *id)
+{
+	const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR,
+					     ATMEL_TS_I2C_ADDR,
+					     I2C_CLIENT_END };
+
+	/* add atmel mxt touch device on PANEL GMBus */
+	ts = add_probed_i2c_device("touchscreen", I2C_ADAPTER_PANEL,
+				   &atmel_1664s_device, addr_list);
+	return 0;
+}
+
+
+static int __init setup_isl29018_als(const struct dmi_system_id *id)
+{
+	/* add isl29018 light sensor */
+	als = add_smbus_device("lightsensor", &isl_als_device);
+	return 0;
+}
+
+static int __init setup_isl29023_als(const struct dmi_system_id *id)
+{
+	/* add isl29023 light sensor on Panel GMBus */
+	als = add_i2c_device("lightsensor", I2C_ADAPTER_PANEL,
+			     &isl_als_device);
+	return 0;
+}
+
+static int __init setup_tsl2583_als(const struct dmi_system_id *id)
+{
+	/* add tsl2583 light sensor on smbus */
+	als = add_smbus_device(NULL, &tsl2583_als_device);
+	return 0;
+}
+
+static int __init setup_tsl2563_als(const struct dmi_system_id *id)
+{
+	/* add tsl2563 light sensor on smbus */
+	als = add_smbus_device(NULL, &tsl2563_als_device);
+	return 0;
+}
+
+static struct dmi_system_id __initdata chromeos_laptop_dmi_table[] = {
+	{
+		.ident = "Samsung Series 5 550 - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
+		},
+		.callback = setup_cyapa_smbus_tp,
+	},
+	{
+		.ident = "Chromebook Pixel - Touchscreen",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+		},
+		.callback = setup_atmel_1664s_ts,
+	},
+	{
+		.ident = "Chromebook Pixel - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+		},
+		.callback = setup_atmel_224s_tp,
+	},
+	{
+		.ident = "Samsung Series 5 550 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
+		},
+		.callback = setup_isl29018_als,
+	},
+	{
+		.ident = "Chromebook Pixel - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+		},
+		.callback = setup_isl29023_als,
+	},
+	{
+		.ident = "Acer C7 Chromebook - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
+		},
+		.callback = setup_cyapa_smbus_tp,
+	},
+	{
+		.ident = "HP Pavilion 14 Chromebook - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
+		},
+		.callback = setup_cyapa_smbus_tp,
+	},
+	{
+		.ident = "Samsung Series 5 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Alex"),
+		},
+		.callback = setup_tsl2583_als,
+	},
+	{
+		.ident = "Cr-48 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
+		},
+		.callback = setup_tsl2563_als,
+	},
+	{
+		.ident = "Acer AC700 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
+		},
+		.callback = setup_tsl2563_als,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table);
+
+static int __init chromeos_laptop_init(void)
+{
+	if (!dmi_check_system(chromeos_laptop_dmi_table)) {
+		pr_debug("%s unsupported system.\n", __func__);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void __exit chromeos_laptop_exit(void)
+{
+	if (als)
+		i2c_unregister_device(als);
+	if (tp)
+		i2c_unregister_device(tp);
+	if (ts)
+		i2c_unregister_device(ts);
+}
+
+module_init(chromeos_laptop_init);
+module_exit(chromeos_laptop_exit);
+
+MODULE_DESCRIPTION("Chrome OS Laptop driver");
+MODULE_AUTHOR("Benson Leung <[e-mail]>");
+MODULE_LICENSE("GPL");

drivers/platform/x86/eeepc-wmi.c

···
 #define HOME_RELEASE	0xe5
 
 static const struct key_entry eeepc_wmi_keymap[] = {
+	{ KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
+	{ KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
 	/* Sleep already handled via generic ACPI code */
 	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
 	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },

drivers/platform/x86/hp-wmi.c

···
 	HPWMI_WIFI = 0,
 	HPWMI_BLUETOOTH = 1,
 	HPWMI_WWAN = 2,
+	HPWMI_GPS = 3,
 };
 
 enum hp_wmi_event_ids {
···
 	HPWMI_CPU_BATTERY_THROTTLE = 6,
 	HPWMI_LOCK_SWITCH = 7,
 };
-
-static int hp_wmi_bios_setup(struct platform_device *device);
-static int __exit hp_wmi_bios_remove(struct platform_device *device);
-static int hp_wmi_resume_handler(struct device *device);
 
 struct bios_args {
 	u32 signature;
···
 	{ KE_KEY, 0x2142, { KEY_MEDIA } },
 	{ KE_KEY, 0x213b, { KEY_INFO } },
 	{ KE_KEY, 0x2169, { KEY_DIRECTION } },
+	{ KE_KEY, 0x216a, { KEY_SETUP } },
 	{ KE_KEY, 0x231b, { KEY_HELP } },
 	{ KE_END, 0 }
 };
···
 static struct rfkill *wifi_rfkill;
 static struct rfkill *bluetooth_rfkill;
 static struct rfkill *wwan_rfkill;
+static struct rfkill *gps_rfkill;
 
 struct rfkill2_device {
 	u8 id;
···
 
 static int rfkill2_count;
 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
-
-static const struct dev_pm_ops hp_wmi_pm_ops = {
-	.resume  = hp_wmi_resume_handler,
-	.restore  = hp_wmi_resume_handler,
-};
-
-static struct platform_driver hp_wmi_driver = {
-	.driver = {
-		.name = "hp-wmi",
-		.owner = THIS_MODULE,
-		.pm = &hp_wmi_pm_ops,
-	},
-	.probe = hp_wmi_bios_setup,
-	.remove = hp_wmi_bios_remove,
-};
 
 /*
  * hp_wmi_perform_query
···
 			rfkill_set_states(wwan_rfkill,
 					  hp_wmi_get_sw_state(HPWMI_WWAN),
 					  hp_wmi_get_hw_state(HPWMI_WWAN));
+		if (gps_rfkill)
+			rfkill_set_states(gps_rfkill,
+					  hp_wmi_get_sw_state(HPWMI_GPS),
+					  hp_wmi_get_hw_state(HPWMI_GPS));
 		break;
 	case HPWMI_CPU_BATTERY_THROTTLE:
 		pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
···
 					   (void *) HPWMI_WWAN);
 		if (!wwan_rfkill) {
 			err = -ENOMEM;
-			goto register_bluetooth_error;
+			goto register_gps_error;
 		}
 		rfkill_init_sw_state(wwan_rfkill,
 				     hp_wmi_get_sw_state(HPWMI_WWAN));
···
 			goto register_wwan_err;
 	}
 
+	if (wireless & 0x8) {
+		gps_rfkill = rfkill_alloc("hp-gps", &device->dev,
+						RFKILL_TYPE_GPS,
+						&hp_wmi_rfkill_ops,
+						(void *) HPWMI_GPS);
+		if (!gps_rfkill) {
+			err = -ENOMEM;
+			goto register_bluetooth_error;
+		}
+		rfkill_init_sw_state(gps_rfkill,
+				     hp_wmi_get_sw_state(HPWMI_GPS));
+		rfkill_set_hw_state(bluetooth_rfkill,
+				    hp_wmi_get_hw_state(HPWMI_GPS));
+		err = rfkill_register(gps_rfkill);
+		if (err)
+			goto register_gps_error;
+	}
+
 	return 0;
 register_wwan_err:
 	rfkill_destroy(wwan_rfkill);
 	wwan_rfkill = NULL;
+	if (gps_rfkill)
+		rfkill_unregister(gps_rfkill);
+register_gps_error:
+	rfkill_destroy(gps_rfkill);
+	gps_rfkill = NULL;
 	if (bluetooth_rfkill)
 		rfkill_unregister(bluetooth_rfkill);
 register_bluetooth_error:
···
 		case HPWMI_WWAN:
 			type = RFKILL_TYPE_WWAN;
 			name = "hp-wwan";
+			break;
+		case HPWMI_GPS:
+			type = RFKILL_TYPE_GPS;
+			name = "hp-gps";
 			break;
 		default:
 			pr_warn("unknown device type 0x%x\n",
···
 	return err;
 }
 
-static int hp_wmi_bios_setup(struct platform_device *device)
+static int __init hp_wmi_bios_setup(struct platform_device *device)
 {
 	int err;
 
···
 	wifi_rfkill = NULL;
 	bluetooth_rfkill = NULL;
 	wwan_rfkill = NULL;
+	gps_rfkill = NULL;
 	rfkill2_count = 0;
 
 	if (hp_wmi_rfkill_setup(device))
···
 		rfkill_unregister(wwan_rfkill);
 		rfkill_destroy(wwan_rfkill);
 	}
+	if (gps_rfkill) {
+		rfkill_unregister(gps_rfkill);
+		rfkill_destroy(gps_rfkill);
+	}
 
 	return 0;
 }
···
 		rfkill_set_states(wwan_rfkill,
 				  hp_wmi_get_sw_state(HPWMI_WWAN),
 				  hp_wmi_get_hw_state(HPWMI_WWAN));
+	if (gps_rfkill)
+		rfkill_set_states(gps_rfkill,
+				  hp_wmi_get_sw_state(HPWMI_GPS),
+				  hp_wmi_get_hw_state(HPWMI_GPS));
 
 	return 0;
 }
+
+static const struct dev_pm_ops hp_wmi_pm_ops = {
+	.resume  = hp_wmi_resume_handler,
+	.restore  = hp_wmi_resume_handler,
+};
+
+static struct platform_driver hp_wmi_driver = {
+	.driver = {
+		.name = "hp-wmi",
+		.owner = THIS_MODULE,
+		.pm = &hp_wmi_pm_ops,
+	},
+	.remove = __exit_p(hp_wmi_bios_remove),
+};
 
 static int __init hp_wmi_init(void)
 {
···
 	int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
 	int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
 
+	if (!bios_capable && !event_capable)
+		return -ENODEV;
+
 	if (event_capable) {
 		err = hp_wmi_input_setup();
 		if (err)
 			return err;
+		
+		//Enable magic for hotkeys that run on the SMBus
+		ec_write(0xe6,0x6e);
 	}
 
 	if (bios_capable) {
-		err = platform_driver_register(&hp_wmi_driver);
-		if (err)
-			goto err_driver_reg;
-		hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1);
-		if (!hp_wmi_platform_dev) {
-			err = -ENOMEM;
-			goto err_device_alloc;
+		hp_wmi_platform_dev =
+			platform_device_register_simple("hp-wmi", -1, NULL, 0);
+		if (IS_ERR(hp_wmi_platform_dev)) {
+			err = PTR_ERR(hp_wmi_platform_dev);
+			goto err_destroy_input;
 		}
-		err = platform_device_add(hp_wmi_platform_dev);
-		if (err)
-			goto err_device_add;
-	}
 
-	if (!bios_capable && !event_capable)
-		return -ENODEV;
+		err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
+		if (err)
+			goto err_unregister_device;
+	}
 
 	return 0;
 
-err_device_add:
-	platform_device_put(hp_wmi_platform_dev);
-err_device_alloc:
-	platform_driver_unregister(&hp_wmi_driver);
-err_driver_reg:
+err_unregister_device:
+	platform_device_unregister(hp_wmi_platform_dev);
+err_destroy_input:
 	if (event_capable)
 		hp_wmi_input_destroy();
 
 	return err;
 }
+module_init(hp_wmi_init);
 
 static void __exit hp_wmi_exit(void)
 {
···
 		platform_driver_unregister(&hp_wmi_driver);
 	}
 }
-
-module_init(hp_wmi_init);
 module_exit(hp_wmi_exit);

drivers/platform/x86/msi-laptop.c

···
 #define MSI_STANDARD_EC_SCM_LOAD_ADDRESS	0x2d
 #define MSI_STANDARD_EC_SCM_LOAD_MASK		(1 << 0)
 
-#define MSI_STANDARD_EC_TOUCHPAD_ADDRESS	0xe4
+#define MSI_STANDARD_EC_FUNCTIONS_ADDRESS	0xe4
+/* Power LED is orange - Turbo mode */
+#define MSI_STANDARD_EC_TURBO_MASK		(1 << 1)
+/* Power LED is green - ECO mode */
+#define MSI_STANDARD_EC_ECO_MASK		(1 << 3)
+/* Touchpad is turned on */
 #define MSI_STANDARD_EC_TOUCHPAD_MASK		(1 << 4)
+/* If this bit != bit 1, turbo mode can't be toggled */
+#define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK	(1 << 7)
+
+#define MSI_STANDARD_EC_FAN_ADDRESS		0x33
+/* If zero, fan rotates at maximal speed */
+#define MSI_STANDARD_EC_AUTOFAN_MASK		(1 << 0)
 
 #ifdef CONFIG_PM_SLEEP
 static int msi_laptop_resume(struct device *device);
···
 
 static struct input_dev *msi_laptop_input_dev;
 
-static bool old_ec_model;
 static int wlan_s, bluetooth_s, threeg_s;
 static int threeg_exists;
-
-/* Some MSI 3G netbook only have one fn key to control Wlan/Bluetooth/3G,
- * those netbook will load the SCM (windows app) to disable the original
- * Wlan/Bluetooth control by BIOS when user press fn key, then control
- * Wlan/Bluetooth/3G by SCM (software control by OS). Without SCM, user
- * cann't on/off 3G module on those 3G netbook.
- * On Linux, msi-laptop driver will do the same thing to disable the
- * original BIOS control, then might need use HAL or other userland
- * application to do the software control that simulate with SCM.
- * e.g. MSI N034 netbook
- */
-static bool load_scm_model;
 static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
+
+/* MSI laptop quirks */
+struct quirk_entry {
+	bool old_ec_model;
+
+	/* Some MSI 3G netbook only have one fn key to control
+	 * Wlan/Bluetooth/3G, those netbook will load the SCM (windows app) to
+	 * disable the original Wlan/Bluetooth control by BIOS when user press
+	 * fn key, then control Wlan/Bluetooth/3G by SCM (software control by
+	 * OS). Without SCM, user cann't on/off 3G module on those 3G netbook.
+	 * On Linux, msi-laptop driver will do the same thing to disable the
+	 * original BIOS control, then might need use HAL or other userland
+	 * application to do the software control that simulate with SCM.
+	 * e.g. MSI N034 netbook
+	 */
+	bool load_scm_model;
+
+	/* Some MSI laptops need delay before reading from EC */
+	bool ec_delay;
+
+	/* Some MSI Wind netbooks (e.g. MSI Wind U100) need loading SCM to get
+	 * some features working (e.g. ECO mode), but we cannot change
+	 * Wlan/Bluetooth state in software and we can only read its state.
+	 */
+	bool ec_read_only;
+};
+
+static struct quirk_entry *quirks;
 
 /* Hardware access */
 
···
 	if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
 		return -EINVAL;
 
+	if (quirks->ec_read_only)
+		return -EOPNOTSUPP;
+
 	/* read current device state */
 	result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 	if (result < 0)
-		return -EINVAL;
+		return result;
 
 	if (!!(rdata & mask) != status) {
 		/* reverse device bit */
···
 
 		result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
 		if (result < 0)
-			return -EINVAL;
+			return result;
 	}
 
 	return count;
···
 
 	result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
 	if (result < 0)
-		return -1;
+		return result;
 
 	if (wlan)
 		*wlan = !!(rdata & 8);
···
 
 	result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 	if (result < 0)
-		return -1;
+		return result;
 
 	wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
 
···
 
 	result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
 	if (result < 0)
-		return -1;
+		return result;
 
 	threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 
···
 	struct device_attribute *attr, char *buf)
 {
 
-	int ret, enabled;
+	int ret, enabled = 0;
 
-	if (old_ec_model) {
+	if (quirks->old_ec_model) {
 		ret = get_wireless_state(&enabled, NULL);
 	} else {
 		ret = get_wireless_state_ec_standard();
···
 	struct device_attribute *attr, char *buf)
 {
 
-	int ret, enabled;
+	int ret, enabled = 0;
 
-	if (old_ec_model) {
+	if (quirks->old_ec_model) {
 		ret = get_wireless_state(NULL, &enabled);
 	} else {
 		ret = get_wireless_state_ec_standard();
···
 	int ret;
 
 	/* old msi ec not support 3G */
-	if (old_ec_model)
-		return -1;
+	if (quirks->old_ec_model)
+		return -ENODEV;
 
 	ret = get_wireless_state_ec_standard();
 	if (ret < 0)
···
 	return count;
 }
 
+static ssize_t show_touchpad(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
+	if (result < 0)
+		return result;
+
+	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
+}
+
+static ssize_t show_turbo(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
+	if (result < 0)
+		return result;
+
+	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
+}
+
+static ssize_t show_eco(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
+	if (result < 0)
+		return result;
+
+	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
+}
+
+static ssize_t show_turbo_cooldown(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
+	if (result < 0)
+		return result;
+
+	return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
+		(!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
+}
+
+static ssize_t show_auto_fan(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	u8 rdata;
+	int result;
+
+	result = ec_read(MSI_STANDARD_EC_FAN_ADDRESS, &rdata);
+	if (result < 0)
+		return result;
+
+	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
+}
+
+static ssize_t store_auto_fan(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+
+	int enable, result;
+
+	if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
+		return -EINVAL;
+
+	result = ec_write(MSI_STANDARD_EC_FAN_ADDRESS, enable);
+	if (result < 0)
+		return result;
+
+	return count;
+}
+
 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 		   store_auto_brightness);
 static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
+static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
+static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
+static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
+static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
+static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
 
 static struct attribute *msipf_attributes[] = {
-	&dev_attr_lcd_level.attr,
-	&dev_attr_auto_brightness.attr,
 	&dev_attr_bluetooth.attr,
 	&dev_attr_wlan.attr,
+	&dev_attr_touchpad.attr,
+	&dev_attr_turbo_mode.attr,
+	&dev_attr_eco_mode.attr,
+	&dev_attr_turbo_cooldown.attr,
+	&dev_attr_auto_fan.attr,
+	NULL
+};
+
+static struct attribute *msipf_old_attributes[] = {
+	&dev_attr_lcd_level.attr,
+	&dev_attr_auto_brightness.attr,
 	NULL
 };
 
 static struct attribute_group msipf_attribute_group = {
 	.attrs = msipf_attributes
+};
+
+static struct attribute_group msipf_old_attribute_group = {
+	.attrs = msipf_old_attributes
 };
 
 static struct platform_driver msipf_driver = {
···
 
 /* Initialization */
 
-static int dmi_check_cb(const struct dmi_system_id *id)
+static struct quirk_entry quirk_old_ec_model = {
+	.old_ec_model = true,
+};
+
+static struct quirk_entry quirk_load_scm_model = {
+	.load_scm_model = true,
+	.ec_delay = true,
+};
+
+static struct quirk_entry quirk_load_scm_ro_model = {
+	.load_scm_model = true,
+	.ec_read_only = true,
+};
+
+static int dmi_check_cb(const struct dmi_system_id *dmi)
 {
-	pr_info("Identified laptop model '%s'\n", id->ident);
+	pr_info("Identified laptop model '%s'\n", dmi->ident);
+
+	quirks = dmi->driver_data;
+
 	return 1;
 }
 
···
 			DMI_MATCH(DMI_CHASSIS_VENDOR,
 				  "MICRO-STAR INT'L CO.,LTD")
 		},
+		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 			DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
 			DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
 		},
+		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 			DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
 			DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
 		},
+		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 			DMI_MATCH(DMI_CHASSIS_VENDOR,
 				  "MICRO-STAR INT'L CO.,LTD")
 		},
+		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
 	},
-	{ }
-};
-
-static struct dmi_system_id __initdata msi_load_scm_models_dmi_table[] = {
 	{
 		.ident = "MSI N034",
 		.matches = {
···
 			DMI_MATCH(DMI_CHASSIS_VENDOR,
 			"MICRO-STAR INTERNATIONAL CO., LTD")
 		},
+		.driver_data = &quirk_load_scm_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 			DMI_MATCH(DMI_CHASSIS_VENDOR,
 			"MICRO-STAR INTERNATIONAL CO., LTD")
 		},
+		.driver_data = &quirk_load_scm_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 				"MICRO-STAR INTERNATIONAL CO., LTD"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
 		},
+		.driver_data = &quirk_load_scm_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 				"Micro-Star International"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
 		},
+		.driver_data = &quirk_load_scm_model,
 		.callback = dmi_check_cb
 	},
 	{
···
 				"Micro-Star International Co., Ltd."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
 		},
+		.driver_data = &quirk_load_scm_model,
+		.callback = dmi_check_cb
+	},
+	{
+		.ident = "MSI U90/U100",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+				"MICRO-STAR INTERNATIONAL CO., LTD"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "U90/U100"),
+		},
+		.driver_data = &quirk_load_scm_ro_model,
 		.callback = dmi_check_cb
 	},
 	{ }
···
 	 * blocked == false is on
 	 * blocked == true is off
 	 */
-	if (blocked)
-		set_device_state("0", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
-	else
-		set_device_state("1", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
+	int result = set_device_state(blocked ? "0" : "1", 0,
+			MSI_STANDARD_EC_BLUETOOTH_MASK);
 
-	return 0;
+	return min(result, 0);
 }
 
 static int rfkill_wlan_set(void *data, bool blocked)
 {
-	if (blocked)
-		set_device_state("0", 0, MSI_STANDARD_EC_WLAN_MASK);
-	else
-		set_device_state("1", 0, MSI_STANDARD_EC_WLAN_MASK);
+	int result = set_device_state(blocked ? "0" : "1", 0,
+			MSI_STANDARD_EC_WLAN_MASK);
 
-	return 0;
+	return min(result, 0);
 }
 
 static int rfkill_threeg_set(void *data, bool blocked)
 {
-	if (blocked)
-		set_device_state("0", 0, MSI_STANDARD_EC_3G_MASK);
-	else
-		set_device_state("1", 0, MSI_STANDARD_EC_3G_MASK);
+	int result = set_device_state(blocked ? "0" : "1", 0,
+			MSI_STANDARD_EC_3G_MASK);
 
-	return 0;
+	return min(result, 0);
 }
 
 static const struct rfkill_ops rfkill_bluetooth_ops = {
···
 	}
 }
 
+static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked)
+{
+	if (quirks->ec_read_only)
+		return rfkill_set_hw_state(rfkill, blocked);
+	else
+		return rfkill_set_sw_state(rfkill, blocked);
+}
+
 static void msi_update_rfkill(struct work_struct *ignored)
 {
 	get_wireless_state_ec_standard();
 
 	if (rfk_wlan)
-		rfkill_set_sw_state(rfk_wlan, !wlan_s);
+		msi_rfkill_set_state(rfk_wlan, !wlan_s);
 	if (rfk_bluetooth)
-		rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
+		msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
 	if (rfk_threeg)
-		rfkill_set_sw_state(rfk_threeg, !threeg_s);
+		msi_rfkill_set_state(rfk_threeg, !threeg_s);
 }
-static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
+static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
+static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
 
 static void msi_send_touchpad_key(struct work_struct *ignored)
 {
 	u8 rdata;
 	int result;
 
-	result = ec_read(MSI_STANDARD_EC_TOUCHPAD_ADDRESS, &rdata);
+	result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 	if (result < 0)
 		return;
 
···
 		(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
 		KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
 }
-static DECLARE_DELAYED_WORK(msi_touchpad_work, msi_send_touchpad_key);
+static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
+static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
 
 static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 				struct serio *port)
···
 		extended = false;
 		switch (data) {
 		case 0xE4:
-			schedule_delayed_work(&msi_touchpad_work,
-				round_jiffies_relative(0.5 * HZ));
+			if (quirks->ec_delay) {
+				schedule_delayed_work(&msi_touchpad_dwork,
+					round_jiffies_relative(0.5 * HZ));
+			} else
+				schedule_work(&msi_touchpad_work);
 			break;
 		case 0x54:
 		case 0x62:
 		case 0x76:
-			schedule_delayed_work(&msi_rfkill_work,
-				round_jiffies_relative(0.5 * HZ));
+			if (quirks->ec_delay) {
+				schedule_delayed_work(&msi_rfkill_dwork,
+					round_jiffies_relative(0.5 * HZ));
+			} else
+				schedule_work(&msi_rfkill_work);
 			break;
 		}
 	}
···
 	}
 
 	/* schedule to run rfkill state initial */
-	schedule_delayed_work(&msi_rfkill_init,
-				round_jiffies_relative(1 * HZ));
+	if (quirks->ec_delay) {
+		schedule_delayed_work(&msi_rfkill_init,
+			round_jiffies_relative(1 * HZ));
+	} else
+		schedule_work(&msi_rfkill_work);
 
 	return 0;
 
···
 	u8 data;
 	int result;
 
-	if (!load_scm_model)
+	if (!quirks->load_scm_model)
 		return 0;
 
 	/* set load SCM to disable hardware control by fn key */
···
 	u8 data;
 	int result;
 
-	/* allow userland write sysfs file  */
-	dev_attr_bluetooth.store = store_bluetooth;
-	dev_attr_wlan.store = store_wlan;
-	dev_attr_threeg.store = store_threeg;
-	dev_attr_bluetooth.attr.mode |= S_IWUSR;
-	dev_attr_wlan.attr.mode |= S_IWUSR;
-	dev_attr_threeg.attr.mode |= S_IWUSR;
+	if (!quirks->ec_read_only) {
+		/* allow userland write sysfs file  */
+		dev_attr_bluetooth.store = store_bluetooth;
+		dev_attr_wlan.store = store_wlan;
+		dev_attr_threeg.store = store_threeg;
+		dev_attr_bluetooth.attr.mode |= S_IWUSR;
+		dev_attr_wlan.attr.mode |= S_IWUSR;
+		dev_attr_threeg.attr.mode |= S_IWUSR;
+	}
 
 	/* disable hardware control by fn key */
 	result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
···
 	if (acpi_disabled)
 		return -ENODEV;
 
-	if (force || dmi_check_system(msi_dmi_table))
-		old_ec_model = 1;
+	dmi_check_system(msi_dmi_table);
+	if (!quirks)
+		/* quirks may be NULL if no match in DMI table */
+		quirks = &quirk_load_scm_model;
+	if (force)
+		quirks = &quirk_old_ec_model;
 
-	if (!old_ec_model)
+	if (!quirks->old_ec_model)
 		get_threeg_exists();
-
-	if (!old_ec_model && dmi_check_system(msi_load_scm_models_dmi_table))
-		load_scm_model = 1;
 
 	if (auto_brightness < 0 || auto_brightness > 2)
 		return -EINVAL;
 
 	/* Register backlight stuff */
 
-	if (acpi_video_backlight_support()) {
+	if (!quirks->old_ec_model || acpi_video_backlight_support()) {
 		pr_info("Brightness ignored, must be controlled by ACPI video driver\n");
 	} else {
 		struct backlight_properties props;
···
 	if (ret)
 		goto fail_platform_device1;
 
-	if (load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
+	if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
 		ret = -EINVAL;
 		goto fail_platform_device1;
 	}
···
 	if (ret)
 		goto fail_platform_device2;
 
-	if (!old_ec_model) {
+	if (!quirks->old_ec_model) {
 		if (threeg_exists)
 			ret = device_create_file(&msipf_device->dev,
 						&dev_attr_threeg);
 		if (ret)
 			goto fail_platform_device2;
+	} else {
+		ret = sysfs_create_group(&msipf_device->dev.kobj,
+					 &msipf_old_attribute_group);
+		if (ret)
+			goto fail_platform_device2;
+
+		/* Disable automatic brightness control by default because
+		 * this module was probably loaded to do brightness control in
+		 * software. */
+
+		if (auto_brightness != 2)
+			set_auto_brightness(auto_brightness);
 	}
-
-	/* Disable automatic brightness control by default because
-	 * this module was probably loaded to do brightness control in
-	 * software. */
-
-	if (auto_brightness != 2)
-		set_auto_brightness(auto_brightness);
 
 	pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
 
···
 
 fail_platform_device2:
 
-	if (load_scm_model) {
+	if (quirks->load_scm_model) {
 		i8042_remove_filter(msi_laptop_i8042_filter);
-		cancel_delayed_work_sync(&msi_rfkill_work);
+		cancel_delayed_work_sync(&msi_rfkill_dwork);
+		cancel_work_sync(&msi_rfkill_work);
 		rfkill_cleanup();
 	}
 	platform_device_del(msipf_device);
···
 
 static void __exit msi_cleanup(void)
 {
-	if (load_scm_model) {
+	if (quirks->load_scm_model) {
 		i8042_remove_filter(msi_laptop_i8042_filter);
 		msi_laptop_input_destroy();
-		cancel_delayed_work_sync(&msi_rfkill_work);
+		cancel_delayed_work_sync(&msi_rfkill_dwork);
+		cancel_work_sync(&msi_rfkill_work);
 		rfkill_cleanup();
 	}
 
 	sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
-	if (!old_ec_model && threeg_exists)
+	if (!quirks->old_ec_model && threeg_exists)
 		device_remove_file(&msipf_device->dev, &dev_attr_threeg);
 	platform_device_unregister(msipf_device);
 	platform_driver_unregister(&msipf_driver);
 	backlight_device_unregister(msibl_device);
 
-	/* Enable automatic brightness control again */
-	if (auto_brightness != 2)
-		set_auto_brightness(1);
+	if (quirks->old_ec_model) {
+		/* Enable automatic brightness control again */
+		if (auto_brightness != 2)
+			set_auto_brightness(1);
+	}
 
 	pr_info("driver unloaded\n");
 }
···
 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
+MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");

drivers/platform/x86/msi-wmi.c

···
 MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver");
 MODULE_LICENSE("GPL");
 
-MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45");
-MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2");
-
 #define DRV_NAME "msi-wmi"
 
 #define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
-#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
+#define MSIWMI_MSI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
+#define MSIWMI_WIND_EVENT_GUID "5B3CC38A-40D9-7245-8AE6-1145B751BE3F"
 
-#define SCANCODE_BASE 0xD0
-#define MSI_WMI_BRIGHTNESSUP   SCANCODE_BASE
-#define MSI_WMI_BRIGHTNESSDOWN (SCANCODE_BASE + 1)
-#define MSI_WMI_VOLUMEUP       (SCANCODE_BASE + 2)
-#define MSI_WMI_VOLUMEDOWN     (SCANCODE_BASE + 3)
-#define MSI_WMI_MUTE           (SCANCODE_BASE + 4)
-static struct key_entry msi_wmi_keymap[] = {
-	{ KE_KEY, MSI_WMI_BRIGHTNESSUP,   {KEY_BRIGHTNESSUP} },
-	{ KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
-	{ KE_KEY, MSI_WMI_VOLUMEUP,       {KEY_VOLUMEUP} },
-	{ KE_KEY, MSI_WMI_VOLUMEDOWN,     {KEY_VOLUMEDOWN} },
-	{ KE_KEY, MSI_WMI_MUTE,           {KEY_MUTE} },
-	{ KE_END, 0}
+MODULE_ALIAS("wmi:" MSIWMI_BIOS_GUID);
+MODULE_ALIAS("wmi:" MSIWMI_MSI_EVENT_GUID);
+MODULE_ALIAS("wmi:" MSIWMI_WIND_EVENT_GUID);
+
+enum msi_scancodes {
+	/* Generic MSI keys (not present on MSI Wind) */
+	MSI_KEY_BRIGHTNESSUP	= 0xD0,
+	MSI_KEY_BRIGHTNESSDOWN,
+	MSI_KEY_VOLUMEUP,
+	MSI_KEY_VOLUMEDOWN,
+	MSI_KEY_MUTE,
+	/* MSI Wind keys */
+	WIND_KEY_TOUCHPAD	= 0x08,	/* Fn+F3 touchpad toggle */
+	WIND_KEY_BLUETOOTH	= 0x56,	/* Fn+F11 Bluetooth toggle */
+	WIND_KEY_CAMERA,		/* Fn+F6 webcam toggle */
+	WIND_KEY_WLAN		= 0x5f,	/* Fn+F11 Wi-Fi toggle */
+	WIND_KEY_TURBO,			/* Fn+F10 turbo mode toggle */
+	WIND_KEY_ECO		= 0x69,	/* Fn+F10 ECO mode toggle */
 };
-static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1];
+static struct key_entry msi_wmi_keymap[] = {
+	{ KE_KEY, MSI_KEY_BRIGHTNESSUP,		{KEY_BRIGHTNESSUP} },
+	{ KE_KEY, MSI_KEY_BRIGHTNESSDOWN,	{KEY_BRIGHTNESSDOWN} },
+	{ KE_KEY, MSI_KEY_VOLUMEUP,		{KEY_VOLUMEUP} },
+	{ KE_KEY, MSI_KEY_VOLUMEDOWN,		{KEY_VOLUMEDOWN} },
+	{ KE_KEY, MSI_KEY_MUTE,			{KEY_MUTE} },
+
+	/* These keys work without WMI. Ignore them to avoid double keycodes */
+	{ KE_IGNORE, WIND_KEY_TOUCHPAD,		{KEY_TOUCHPAD_TOGGLE} },
+	{ KE_IGNORE, WIND_KEY_BLUETOOTH,	{KEY_BLUETOOTH} },
+	{ KE_IGNORE, WIND_KEY_CAMERA,		{KEY_CAMERA} },
+	{ KE_IGNORE, WIND_KEY_WLAN,		{KEY_WLAN} },
+
+	/* These are unknown WMI events found on MSI Wind */
+	{ KE_IGNORE, 0x00 },
+	{ KE_IGNORE, 0x62 },
+	{ KE_IGNORE, 0x63 },
+
+	/* These are MSI Wind keys that should be handled via WMI */
+	{ KE_KEY, WIND_KEY_TURBO,		{KEY_PROG1} },
+	{ KE_KEY, WIND_KEY_ECO,			{KEY_PROG2} },
+
+	{ KE_END, 0 }
+};
+
+static ktime_t last_pressed;
+
+static const struct {
+	const char *guid;
+	bool quirk_last_pressed;
+} *event_wmi, event_wmis[] = {
+	{ MSIWMI_MSI_EVENT_GUID, true },
+	{ MSIWMI_WIND_EVENT_GUID, false },
+};
 
 static struct backlight_device *backlight;
 
···
 	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
 	static struct key_entry *key;
 	union acpi_object *obj;
-	ktime_t cur;
 	acpi_status status;
 
 	status = wmi_get_event_data(value, &response);
···
 		pr_debug("Eventcode: 0x%x\n", eventcode);
 		key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev,
 				eventcode);
-		if (key) {
-			ktime_t diff;
-			cur = ktime_get_real();
-			diff = ktime_sub(cur, last_pressed[key->code -
-					SCANCODE_BASE]);
-			/* Ignore event if the same event happened in a 50 ms
+		if (!key) {
+			pr_info("Unknown key pressed - %x\n", eventcode);
+			goto msi_wmi_notify_exit;
+		}
+
+		if (event_wmi->quirk_last_pressed) {
+			ktime_t cur = ktime_get_real();
+			ktime_t diff = ktime_sub(cur, last_pressed);
+			/* Ignore event if any event happened in a 50 ms
 			   timeframe -> Key press may result in 10-20 GPEs */
 			if (ktime_to_us(diff) < 1000 * 50) {
 				pr_debug("Suppressed key event 0x%X - "
 					 "Last press was %lld us ago\n",
 					 key->code, ktime_to_us(diff));
-				return;
+				goto msi_wmi_notify_exit;
 			}
-			last_pressed[key->code - SCANCODE_BASE] = cur;
+			last_pressed = cur;
+		}
 
-			if (key->type == KE_KEY &&
-			/* Brightness is served via acpi video driver */
-			(!acpi_video_backlight_support() ||
-			(key->code != MSI_WMI_BRIGHTNESSUP &&
-			key->code != MSI_WMI_BRIGHTNESSDOWN))) {
-				pr_debug("Send key: 0x%X - "
-					 "Input layer keycode: %d\n",
-					 key->code, key->keycode);
-				sparse_keymap_report_entry(msi_wmi_input_dev,
-						key, 1, true);
-			}
-		} else
-			pr_info("Unknown key pressed - %x\n", eventcode);
+		if (key->type == KE_KEY &&
+		/* Brightness is served via acpi video driver */
+		(backlight ||
+		(key->code != MSI_KEY_BRIGHTNESSUP &&
+		key->code != MSI_KEY_BRIGHTNESSDOWN))) {
+			pr_debug("Send key: 0x%X - Input layer keycode: %d\n",
+				 key->code, key->keycode);
+			sparse_keymap_report_entry(msi_wmi_input_dev, key, 1,
+						   true);
+		}
 	} else
 		pr_info("Unknown event received\n");
+
+msi_wmi_notify_exit:
 	kfree(response.pointer);
+}
+
+static int __init msi_wmi_backlight_setup(void)
+{
+	int err;
+	struct backlight_properties props;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.type = BACKLIGHT_PLATFORM;
+	props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
+	backlight = backlight_device_register(DRV_NAME, NULL, NULL,
+					      &msi_backlight_ops,
+					      &props);
+	if (IS_ERR(backlight))
+		return PTR_ERR(backlight);
+
+	err = bl_get(NULL);
+	if (err < 0) {
+		backlight_device_unregister(backlight);
+		return err;
+	}
+
+	backlight->props.brightness = err;
+
+	return 0;
 }
 
 static int __init msi_wmi_input_setup(void)
···
 	if (err)
 		goto err_free_keymap;
 
-	memset(last_pressed, 0, sizeof(last_pressed));
+	last_pressed = ktime_set(0, 0);
 
 	return 0;
 
···
 static int __init msi_wmi_init(void)
 {
 	int err;
+	int i;
 
-	if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
-		pr_err("This machine doesn't have MSI-hotkeys through WMI\n");
-		return -ENODEV;
-	}
-	err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
+	for (i = 0; i < ARRAY_SIZE(event_wmis); i++) {
+		if (!wmi_has_guid(event_wmis[i].guid))
+			continue;
+
+		err = msi_wmi_input_setup();
+		if (err) {
+			pr_err("Unable to setup input device\n");
+			return err;
+		}
+
+		err = wmi_install_notify_handler(event_wmis[i].guid,
 			msi_wmi_notify, NULL);
-	if (ACPI_FAILURE(err))
-		return -EINVAL;
-
-	err = msi_wmi_input_setup();
-	if (err)
-		goto err_uninstall_notifier;
-
-	if (!acpi_video_backlight_support()) {
-		struct backlight_properties props;
-		memset(&props, 0, sizeof(struct backlight_properties));
-		props.type = BACKLIGHT_PLATFORM;
-		props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
-		backlight = backlight_device_register(DRV_NAME, NULL, NULL,
-						      &msi_backlight_ops,
-						      &props);
-		if (IS_ERR(backlight)) {
-			err = PTR_ERR(backlight);
+		if (ACPI_FAILURE(err)) {
+			pr_err("Unable to setup WMI notify handler\n");
 			goto err_free_input;
 		}
 
-		err = bl_get(NULL);
-		if (err < 0)
-			goto err_free_backlight;
-
-		backlight->props.brightness = err;
+		pr_debug("Event handler installed\n");
+		event_wmi = &event_wmis[i];
+		break;
 	}
-	pr_debug("Event handler installed\n");
+
+	if (wmi_has_guid(MSIWMI_BIOS_GUID) && !acpi_video_backlight_support()) {
+		err = msi_wmi_backlight_setup();
+		if (err) {
+			pr_err("Unable to setup backlight device\n");
+			goto err_uninstall_handler;
+		}
+		pr_debug("Backlight device created\n");
+	}
+
+	if (!event_wmi && !backlight) {
+		pr_err("This machine doesn't have neither MSI-hotkeys nor backlight through WMI\n");
+		return -ENODEV;
+	}
 
 	return 0;
 
-err_free_backlight:
-	backlight_device_unregister(backlight);
+err_uninstall_handler:
+	if (event_wmi)
+		wmi_remove_notify_handler(event_wmi->guid);
 err_free_input:
-	sparse_keymap_free(msi_wmi_input_dev);
-	input_unregister_device(msi_wmi_input_dev);
-err_uninstall_notifier:
-	wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+	if (event_wmi) {
+		sparse_keymap_free(msi_wmi_input_dev);
+		input_unregister_device(msi_wmi_input_dev);
+	}
 	return err;
 }
 
 static void __exit msi_wmi_exit(void)
 {
-	if (wmi_has_guid(MSIWMI_EVENT_GUID)) {
-		wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+	if (event_wmi) {
+		wmi_remove_notify_handler(event_wmi->guid);
 		sparse_keymap_free(msi_wmi_input_dev);
 		input_unregister_device(msi_wmi_input_dev);
-		backlight_device_unregister(backlight);
 	}
+	if (backlight)
+		backlight_device_unregister(backlight);
 }
 
 module_init(msi_wmi_init);

drivers/platform/x86/sony-laptop.c

···
 static int sony_nc_lid_resume_setup(struct platform_device *pd);
 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 
+static int sony_nc_gfx_switch_setup(struct platform_device *pd,
+		unsigned int handle);
+static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
+static int __sony_nc_gfx_switch_status_get(void);
+
 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 
···
 			/* Hybrid GFX switching */
 			sony_call_snc_handle(handle, 0x0000, &result);
 			dprintk("GFX switch event received (reason: %s)\n",
-					(result & 0x01) ?
-					"switch change" : "unknown");
-
-			/* verify the switch state
-			 * 1: discrete GFX
-			 * 0: integrated GFX
-			 */
-			sony_call_snc_handle(handle, 0x0100, &result);
+					(result == 0x1) ? "switch change" :
+					(result == 0x2) ? "output switch" :
+					(result == 0x3) ? "output switch" :
+					"");
 
 			ev_type = GFX_SWITCH;
-			real_ev = result & 0xff;
+			real_ev = __sony_nc_gfx_switch_status_get();
 			break;
 
 		default:
···
 				pr_err("couldn't set up thermal profile function (%d)\n",
 						result);
 			break;
+		case 0x0128:
+		case 0x0146:
+			result = sony_nc_gfx_switch_setup(pf_device, handle);
+			if (result)
+				pr_err("couldn't set up GFX Switch status (%d)\n",
+						result);
+			break;
 		case 0x0131:
 			result = sony_nc_highspeed_charging_setup(pf_device);
 			if (result)
···
 			break;
 		case 0x0137:
 		case 0x0143:
+		case 0x014b:
+		case 0x014c:
 			result = sony_nc_kbd_backlight_setup(pf_device, handle);
 			if (result)
 				pr_err("couldn't set up keyboard backlight function (%d)\n",
···
 		case 0x0122:
 			sony_nc_thermal_cleanup(pd);
 			break;
+		case 0x0128:
+		case 0x0146:
+			sony_nc_gfx_switch_cleanup(pd);
+			break;
 		case 0x0131:
 			sony_nc_highspeed_charging_cleanup(pd);
 			break;
···
 			break;
 		case 0x0137:
 		case 0x0143:
+		case 0x014b:
+		case 0x014c:
 			sony_nc_kbd_backlight_cleanup(pd);
 			break;
 		default:
···
 			break;
 		case 0x0137:
 		case 0x0143:
+		case 0x014b:
+		case 0x014c:
 			sony_nc_kbd_backlight_resume();
 			break;
 		default:
···
 	int argument = sony_rfkill_address[(long) data] + 0x100;
 
 	if (!blocked)
-		argument |= 0x030000;
+		argument |= 0x070000;
 
 	return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
 }
···
 	return 0;
 
 liderror:
-	for (; i > 0; i--)
+	for (i--; i >= 0; i--)
 		device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
 
 	kfree(lid_ctl);
···
 
 		kfree(lid_ctl);
 		lid_ctl = NULL;
+	}
+}
+
+/* GFX Switch position */
+enum gfx_switch {
+	SPEED,
+	STAMINA,
+	AUTO
+};
+struct snc_gfx_switch_control {
+	struct device_attribute attr;
+	unsigned int handle;
+};
+static struct snc_gfx_switch_control *gfxs_ctl;
+
+/* returns 0 for speed, 1 for stamina */
+static int __sony_nc_gfx_switch_status_get(void)
+{
+	unsigned int result;
+
+	if (sony_call_snc_handle(gfxs_ctl->handle, 0x0100, &result))
+		return -EIO;
+
+	switch (gfxs_ctl->handle) {
+	case 0x0146:
+		/* 1: discrete GFX (speed)
+		 * 0: integrated GFX (stamina)
+		 */
+		return result & 0x1 ? SPEED : STAMINA;
+		break;
+	case 0x0128:
+		/* it's a more elaborated bitmask, for now:
+		 * 2: integrated GFX (stamina)
+		 * 0: discrete GFX (speed)
+		 */
+		dprintk("GFX Status: 0x%x\n", result);
+		return result & 0x80 ? AUTO :
+			result & 0x02 ? STAMINA : SPEED;
+		break;
+	}
+	return -EINVAL;
+}
+
+static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buffer)
+{
+	int pos = __sony_nc_gfx_switch_status_get();
+
+	if (pos < 0)
+		return pos;
+
+	return snprintf(buffer, PAGE_SIZE, "%s\n", pos ? "speed" : "stamina");
+}
+
+static int sony_nc_gfx_switch_setup(struct platform_device *pd,
+		unsigned int handle)
+{
+	unsigned int result;
+
+	gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
+	if (!gfxs_ctl)
+		return -ENOMEM;
+
+	gfxs_ctl->handle = handle;
+
+	sysfs_attr_init(&gfxs_ctl->attr.attr);
+	gfxs_ctl->attr.attr.name = "gfx_switch_status";
+	gfxs_ctl->attr.attr.mode = S_IRUGO;
+	gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
+
+	result = device_create_file(&pd->dev, &gfxs_ctl->attr);
+	if (result)
+		goto gfxerror;
+
+	return 0;
+
+gfxerror:
+	kfree(gfxs_ctl);
+	gfxs_ctl = NULL;
+
+	return result;
+}
+
+static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
+{
+	if (gfxs_ctl) {
+		device_remove_file(&pd->dev, &gfxs_ctl->attr);
+
+		kfree(gfxs_ctl);
+		gfxs_ctl = NULL;
 	}
 }
 
···
 		lvl_table_len = 9;
 		break;
 	case 0x143:
+	case 0x14b:
+	case 0x14c:
 		lvl_table_len = 16;
 		break;
 	}
···
 		ops = &sony_backlight_ng_ops;
 		sony_bl_props.cmd_base = 0x3000;
 		sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
+		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
+
+	} else if (sony_find_snc_handle(0x14b) >= 0) {
+		ops = &sony_backlight_ng_ops;
+		sony_bl_props.cmd_base = 0x3000;
+		sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
+		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
+
+	} else if (sony_find_snc_handle(0x14c) >= 0) {
+		ops = &sony_backlight_ng_ops;
+		sony_bl_props.cmd_base = 0x3000;
+		sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
 	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",

drivers/platform/x86/thinkpad_acpi.c

···
 	TP_HKEY_EV_ALARM_SENSOR_XHOT	= 0x6022, /* sensor critically hot */
 	TP_HKEY_EV_THM_TABLE_CHANGED	= 0x6030, /* thermal table changed */
 
-	TP_HKEY_EV_UNK_6040		= 0x6040, /* Related to AC change?
-						     some sort of APM hint,
-						     W520 */
+	/* AC-related events */
+	TP_HKEY_EV_AC_CHANGED		= 0x6040, /* AC status changed */
 
 	/* Misc */
 	TP_HKEY_EV_RFKILL_CHANGED	= 0x7000, /* rfkill switch changed */
···
 			 "a sensor reports something is extremely hot!\n");
 		/* recommended action: immediate sleep/hibernate */
 		break;
+	case TP_HKEY_EV_AC_CHANGED:
+		/* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520:
+		 * AC status changed; can be triggered by plugging or
+		 * unplugging AC adapter, docking or undocking. */
+
+		/* fallthrough */
 
 	case TP_HKEY_EV_KEY_NUMLOCK:
 	case TP_HKEY_EV_KEY_FN:
···
 	return s && strlen(s) >= 8 &&
 		tpacpi_is_fw_digit(s[0]) &&
 		tpacpi_is_fw_digit(s[1]) &&
-		s[2] == t && s[3] == 'T' &&
+		s[2] == t &&
+		(s[3] == 'T' || s[3] == 'N') &&
 		tpacpi_is_fw_digit(s[4]) &&
 		tpacpi_is_fw_digit(s[5]);
 }
···
 		return -ENOMEM;
 
 	/* Really ancient ThinkPad 240X will fail this, which is fine */
-	if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E'))
+	if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') ||
+	      tpacpi_is_valid_fw_id(tp->bios_version_str, 'C')))
 		return 0;
 
 	tp->bios_model = tp->bios_version_str[0]