Merge tag 'platform-drivers-x86-v4.9-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver fixes from Darren Hart:
 "Minor doc fix, a DMI match for ideapad and a fix to toshiba-wmi to
  avoid loading on non-toshiba systems.

  Documentation/ABI:
   - ibm_rtl: The "What:" fields are incomplete

  toshiba-wmi:
   - Fix loading the driver on non Toshiba laptops

  ideapad-laptop:
   - Add another DMI entry for Yoga 900"

* tag 'platform-drivers-x86-v4.9-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  Documentation/ABI: ibm_rtl: The "What:" fields are incomplete
  toshiba-wmi: Fix loading the driver on non Toshiba laptops
  ideapad-laptop: Add another DMI entry for Yoga 900

Author: torvalds

Documentation/ABI/testing/sysfs-devices-system-ibm-rtl

@@ -1,4 +1,4 @@
-What:           state
+What:           /sys/devices/system/ibm_rtl/state
 Date:           Sep 2010
 KernelVersion:  2.6.37
 Contact:        Vernon Mauery <vernux@us.ibm.com>
@@ -10,7 +10,7 @@ Description:    The state file allows a means by which to change in and
 Users:          The ibm-prtm userspace daemon uses this interface.
 
 
-What:           version
+What:           /sys/devices/system/ibm_rtl/version
 Date:           Sep 2010
 KernelVersion:  2.6.37
 Contact:        Vernon Mauery <vernux@us.ibm.com>

drivers/platform/x86/ideapad-laptop.c

@@ -933,6 +933,13 @@ static const struct dmi_system_id no_hw_rfkill_list[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 900"),
 		},
 	},
+	{
+		.ident = "Lenovo Yoga 900",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "VIUU4"),
+		},
+	},
 	{
 		.ident = "Lenovo YOGA 910-13IKB",
 		.matches = {

drivers/platform/x86/toshiba-wmi.c

@@ -24,14 +24,15 @@
 #include <linux/acpi.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
+#include <linux/dmi.h>
 
 MODULE_AUTHOR("Azael Avalos");
 MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
 MODULE_LICENSE("GPL");
 
-#define TOSHIBA_WMI_EVENT_GUID	"59142400-C6A3-40FA-BADB-8A2652834100"
+#define WMI_EVENT_GUID	"59142400-C6A3-40FA-BADB-8A2652834100"
 
-MODULE_ALIAS("wmi:"TOSHIBA_WMI_EVENT_GUID);
+MODULE_ALIAS("wmi:"WMI_EVENT_GUID);
 
 static struct input_dev *toshiba_wmi_input_dev;
 
@@ -63,6 +64,16 @@ static void toshiba_wmi_notify(u32 value, void *context)
 	kfree(response.pointer);
 }
 
+static struct dmi_system_id toshiba_wmi_dmi_table[] __initdata = {
+	{
+		.ident = "Toshiba laptop",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		},
+	},
+	{}
+};
+
 static int __init toshiba_wmi_input_setup(void)
 {
 	acpi_status status;
@@ -81,7 +92,7 @@ static int __init toshiba_wmi_input_setup(void)
 	if (err)
 		goto err_free_dev;
 
-	status = wmi_install_notify_handler(TOSHIBA_WMI_EVENT_GUID,
+	status = wmi_install_notify_handler(WMI_EVENT_GUID,
 					    toshiba_wmi_notify, NULL);
 	if (ACPI_FAILURE(status)) {
 		err = -EIO;
@@ -95,7 +106,7 @@ static int __init toshiba_wmi_input_setup(void)
 	return 0;
 
  err_remove_notifier:
-	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
+	wmi_remove_notify_handler(WMI_EVENT_GUID);
  err_free_keymap:
 	sparse_keymap_free(toshiba_wmi_input_dev);
  err_free_dev:
@@ -105,7 +116,7 @@ static int __init toshiba_wmi_input_setup(void)
 
 static void toshiba_wmi_input_destroy(void)
 {
-	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
+	wmi_remove_notify_handler(WMI_EVENT_GUID);
 	sparse_keymap_free(toshiba_wmi_input_dev);
 	input_unregister_device(toshiba_wmi_input_dev);
 }
@@ -114,7 +125,8 @@ static int __init toshiba_wmi_init(void)
 {
 	int ret;
 
-	if (!wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
+	if (!wmi_has_guid(WMI_EVENT_GUID) ||
+	    !dmi_check_system(toshiba_wmi_dmi_table))
 		return -ENODEV;
 
 	ret = toshiba_wmi_input_setup();
@@ -130,7 +142,7 @@ static int __init toshiba_wmi_init(void)
 
 static void __exit toshiba_wmi_exit(void)
 {
-	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
+	if (wmi_has_guid(WMI_EVENT_GUID))
 		toshiba_wmi_input_destroy();
 }