3 files changed, 65 insertions, 4 deletions

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 75ce18c671ff..73e082609755 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -59,6 +59,17 @@ static struct quirk_entry quirk_asus_unknown = {
 	.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,
 };
@@ -77,6 +88,15 @@ static struct dmi_system_id asus_quirks[] = {
 			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,
 	},
 	{
@@ -95,6 +115,15 @@ static struct dmi_system_id asus_quirks[] = {
 			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,
 	},
 	{
@@ -131,7 +160,7 @@ static struct dmi_system_id asus_quirks[] = {
 			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,
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 912ec7de71f4..208e71c61847 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1341,6 +1341,23 @@ static void asus_wmi_backlight_exit(struct asus_wmi *asus)
 	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 do_nothing(void)
+{
+	return;
+}
+
 static void asus_wmi_notify(u32 value, void *context)
 {
 	struct asus_wmi *asus = context;
@@ -1380,10 +1397,18 @@ static void asus_wmi_notify(u32 value, void *context)
 		code = NOTIFY_BRNDOWN_MIN;
 
 	if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
-		if (!acpi_video_backlight_support())
+		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:
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 4c9bd38bb0a2..776524c725de 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -41,6 +41,13 @@ struct quirk_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 {