--- zzzz-none-000/linux-3.10.107/drivers/input/serio/i8042-x86ia64io.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/input/serio/i8042-x86ia64io.h	2021-02-04 17:41:59.000000000 +0000
@@ -436,6 +436,13 @@
 		},
 	},
 	{
+		/* Acer Aspire 5710 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
+		},
+	},
+	{
 		/* Acer Aspire 7738 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -500,6 +507,13 @@
 		},
 	},
 	{
+		/* Asus X450LCP */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
+		},
+	},
+	{
 		/* Avatar AVIU-145A6 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
@@ -509,6 +523,90 @@
 	{ }
 };
 
+/*
+ * On some Asus laptops, just running self tests cause problems.
+ */
+static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "A455LD"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "K401LB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "K501LB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "K501LX"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "R409L"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "V502LX"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X302LA"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X450LD"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X455LAB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X455LDB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X455LF"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Z450LA"),
+		},
+	},
+	{ }
+};
 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 	{
 		/* MSI Wind U-100 */
@@ -587,13 +685,6 @@
 			DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 		},
 	},
-	{
-		/* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
-		},
-	},
 	{ }
 };
 
@@ -607,6 +698,16 @@
 		},
 	},
 	{
+		/*
+		 * Intel NUC D54250WYK - does not have i8042 controller but
+		 * declares PS/2 devices in DSDT.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
+			DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
+		},
+	},
+	{
 		/* MSI Wind U-100 */
 		.matches = {
 			DMI_MATCH(DMI_BOARD_NAME, "U-100"),
@@ -789,6 +890,13 @@
 			DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
 		},
 	},
+	{
+		/* Schenker XMG C504 - Elantech touchpad */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
+		},
+	},
 	{ }
 };
 
@@ -810,6 +918,17 @@
 static char i8042_pnp_kbd_name[32];
 static char i8042_pnp_aux_name[32];
 
+static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
+{
+	strlcpy(dst, "PNP:", dst_size);
+
+	while (id) {
+		strlcat(dst, " ", dst_size);
+		strlcat(dst, id->id, dst_size);
+		id = id->next;
+	}
+}
+
 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 {
 	if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
@@ -826,6 +945,8 @@
 		strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 		strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 	}
+	i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
+			       sizeof(i8042_kbd_firmware_id));
 
 	/* Keyboard ports are always supposed to be wakeup-enabled */
 	device_set_wakeup_enable(&dev->dev, true);
@@ -850,6 +971,8 @@
 		strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 		strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 	}
+	i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
+			       sizeof(i8042_aux_firmware_id));
 
 	i8042_pnp_aux_devices++;
 	return 0;
@@ -1053,12 +1176,18 @@
 		return retval;
 
 #if defined(__ia64__)
-        i8042_reset = true;
+        i8042_reset = I8042_RESET_ALWAYS;
 #endif
 
 #ifdef CONFIG_X86
-	if (dmi_check_system(i8042_dmi_reset_table))
-		i8042_reset = true;
+	/* Honor module parameter when value is not default */
+	if (i8042_reset == I8042_RESET_DEFAULT) {
+		if (dmi_check_system(i8042_dmi_reset_table))
+			i8042_reset = I8042_RESET_ALWAYS;
+
+		if (dmi_check_system(i8042_dmi_noselftest_table))
+			i8042_reset = I8042_RESET_NEVER;
+	}
 
 	if (dmi_check_system(i8042_dmi_noloop_table))
 		i8042_noloop = true;