diff --git a/drivers/platform/mellanox/mlxreg-hotplug.c b/drivers/platform/mellanox/mlxreg-hotplug.c
index 687ce6817d0d9b08af94aa62092fae085b26347a..f85a1b9d129b1a7c893197bebdce2ab7a9ff2bba 100644
--- a/drivers/platform/mellanox/mlxreg-hotplug.c
+++ b/drivers/platform/mellanox/mlxreg-hotplug.c
@@ -694,6 +694,7 @@ static int mlxreg_hotplug_remove(struct platform_device *pdev)
 
 	/* Clean interrupts setup. */
 	mlxreg_hotplug_unset_irq(priv);
+	devm_free_irq(&pdev->dev, priv->irq, priv);
 
 	return 0;
 }
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 81642102bf65a077a3f4e4882f7aca5f0c7f99a2..8d9e30dbb5af58df58c93c4f17a4a42382e92ba3 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -65,10 +65,12 @@ static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
 
 static struct quirk_entry quirk_asus_unknown = {
 	.wapf = 0,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_q500a = {
 	.i8042_filter = asus_q500a_i8042_filter,
+	.wmi_backlight_set_devstate = true,
 };
 
 /*
@@ -79,26 +81,32 @@ static struct quirk_entry quirk_asus_q500a = {
 static struct quirk_entry quirk_asus_x55u = {
 	.wapf = 4,
 	.wmi_backlight_power = true,
+	.wmi_backlight_set_devstate = true,
 	.no_display_toggle = true,
 };
 
 static struct quirk_entry quirk_asus_wapf4 = {
 	.wapf = 4,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_x200ca = {
 	.wapf = 2,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_ux303ub = {
 	.wmi_backlight_native = true,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_x550lb = {
+	.wmi_backlight_set_devstate = true,
 	.xusb2pr = 0x01D9,
 };
 
 static struct quirk_entry quirk_asus_forceals = {
+	.wmi_backlight_set_devstate = true,
 	.wmi_force_als_set = true,
 };
 
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 3e4336025e8f35b9d790a38b8e124a22e1a120a4..9b18a184e0aac89c58232681bbd5ab689cae0e2f 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -2146,7 +2146,7 @@ static int asus_wmi_add(struct platform_device *pdev)
 		err = asus_wmi_backlight_init(asus);
 		if (err && err != -ENODEV)
 			goto fail_backlight;
-	} else
+	} else if (asus->driver->quirks->wmi_backlight_set_devstate)
 		err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
 
 	if (asus_wmi_has_fnlock_key(asus)) {
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 0930be770688a1326a18cd27d4688e83dde507ed..4f31b68642a08380c63f993dd5702e51666d32c0 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -31,6 +31,7 @@ struct quirk_entry {
 	bool store_backlight_power;
 	bool wmi_backlight_power;
 	bool wmi_backlight_native;
+	bool wmi_backlight_set_devstate;
 	bool wmi_force_als_set;
 	int wapf;
 	/*
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index 06cd7e818ed5dd8b9c28c5f67289d8dc90b07644..a0d0cecff55fd908a3b3096238c529a2ed657217 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -76,12 +76,24 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 	struct platform_device *device = context;
 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
 	unsigned int val = !(event & 1); /* Even=press, Odd=release */
-	const struct key_entry *ke_rel;
+	const struct key_entry *ke, *ke_rel;
 	bool autorelease;
 
 	if (priv->wakeup_mode) {
-		if (sparse_keymap_entry_from_scancode(priv->input_dev, event)) {
+		ke = sparse_keymap_entry_from_scancode(priv->input_dev, event);
+		if (ke) {
 			pm_wakeup_hard_event(&device->dev);
+
+			/*
+			 * Switch events like tablet mode will wake the device
+			 * and report the new switch position to the input
+			 * subsystem.
+			 */
+			if (ke->type == KE_SW)
+				sparse_keymap_report_event(priv->input_dev,
+							   event,
+							   val,
+							   0);
 			return;
 		}
 		goto out_unknown;
diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index cee039f574994133b02e2e24400f73e134931968..983f02b5b1060dafdb6b8a230a511edad84cf24a 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -2032,7 +2032,7 @@ static int __init mlxplat_init(void)
 
 	for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
 		priv->pdev_mux[i] = platform_device_register_resndata(
-						&mlxplat_dev->dev,
+						&priv->pdev_i2c->dev,
 						"i2c-mux-reg", i, NULL,
 						0, &mlxplat_mux_data[i],
 						sizeof(mlxplat_mux_data[i]));