Platform: x86: chromeos_laptop - Add a more general add_i2c_device

This will allow us to assign devices to buses by the type enum.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

drivers/platform/x86/chromeos_laptop.c

@@ -181,16 +181,24 @@ static __init struct i2c_client *add_probed_i2c_device(
  * info->addr.
  * Returns NULL if no device found.
  */
-static struct i2c_client __init *add_smbus_device(const char *name,
-						  struct i2c_board_info *info)
+static __init struct i2c_client *add_i2c_device(const char *name,
+						enum i2c_adapter_type type,
+						struct i2c_board_info *info)
 {
 	const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END };
 	return __add_probed_i2c_device(name,
-				       find_i2c_adapter_num(I2C_ADAPTER_SMBUS),
+				       find_i2c_adapter_num(type),
 				       info,
 				       addr_list);
 }
 
+
+static struct i2c_client __init *add_smbus_device(const char *name,
+						  struct i2c_board_info *info)
+{
+	return add_i2c_device(name, I2C_ADAPTER_SMBUS, info);
+}
+
 static int __init setup_cyapa_smbus_tp(const struct dmi_system_id *id)
 {
 	/* add cyapa touchpad on smbus */