i8k: Add support for Dell Precision 490 and Latitude D520

Both systems need non-standard parameters for fan multiplier
and maximum fan speed.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Cc: Andreas Mohr <andi@lisas.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/char/i8k.c

@@ -648,11 +648,21 @@ struct i8k_config_data {
 };
 
 enum i8k_configs {
+	DELL_LATITUDE_D520,
+	DELL_PRECISION_490,
 	DELL_STUDIO,
 	DELL_XPS_M140,
 };
 
 static const struct i8k_config_data i8k_config_data[] = {
+	[DELL_LATITUDE_D520] = {
+		.fan_mult = 1,
+		.fan_max = I8K_FAN_TURBO,
+	},
+	[DELL_PRECISION_490] = {
+		.fan_mult = 1,
+		.fan_max = I8K_FAN_TURBO,
+	},
 	[DELL_STUDIO] = {
 		.fan_mult = 1,
 		.fan_max = I8K_FAN_HIGH,
@@ -685,6 +695,14 @@ static struct dmi_system_id i8k_dmi_table[] __initdata = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
 		},
 	},
+	{
+		.ident = "Dell Latitude D520",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D520"),
+		},
+		.driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520],
+	},
 	{
 		.ident = "Dell Latitude 2",
 		.matches = {
@@ -706,6 +724,15 @@ static struct dmi_system_id i8k_dmi_table[] __initdata = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "MP061"),
 		},
 	},
+	{
+		.ident = "Dell Precision 490",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME,
+				  "Precision WorkStation 490"),
+		},
+		.driver_data = (void *)&i8k_config_data[DELL_PRECISION_490],
+	},
 	{
 		.ident = "Dell Precision",
 		.matches = {