[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/misc/ad525x_dpot-i2c.c b/src/kernel/linux/v4.14/drivers/misc/ad525x_dpot-i2c.c
new file mode 100644
index 0000000..4f83200
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/misc/ad525x_dpot-i2c.c
@@ -0,0 +1,119 @@
+/*
+ * Driver for the Analog Devices digital potentiometers (I2C bus)
+ *
+ * Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+
+#include "ad525x_dpot.h"
+
+/* I2C bus functions */
+static int write_d8(void *client, u8 val)
+{
+ return i2c_smbus_write_byte(client, val);
+}
+
+static int write_r8d8(void *client, u8 reg, u8 val)
+{
+ return i2c_smbus_write_byte_data(client, reg, val);
+}
+
+static int write_r8d16(void *client, u8 reg, u16 val)
+{
+ return i2c_smbus_write_word_data(client, reg, val);
+}
+
+static int read_d8(void *client)
+{
+ return i2c_smbus_read_byte(client);
+}
+
+static int read_r8d8(void *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int read_r8d16(void *client, u8 reg)
+{
+ return i2c_smbus_read_word_data(client, reg);
+}
+
+static const struct ad_dpot_bus_ops bops = {
+ .read_d8 = read_d8,
+ .read_r8d8 = read_r8d8,
+ .read_r8d16 = read_r8d16,
+ .write_d8 = write_d8,
+ .write_r8d8 = write_r8d8,
+ .write_r8d16 = write_r8d16,
+};
+
+static int ad_dpot_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ad_dpot_bus_data bdata = {
+ .client = client,
+ .bops = &bops,
+ };
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_WORD_DATA)) {
+ dev_err(&client->dev, "SMBUS Word Data not Supported\n");
+ return -EIO;
+ }
+
+ return ad_dpot_probe(&client->dev, &bdata, id->driver_data, id->name);
+}
+
+static int ad_dpot_i2c_remove(struct i2c_client *client)
+{
+ return ad_dpot_remove(&client->dev);
+}
+
+static const struct i2c_device_id ad_dpot_id[] = {
+ {"ad5258", AD5258_ID},
+ {"ad5259", AD5259_ID},
+ {"ad5251", AD5251_ID},
+ {"ad5252", AD5252_ID},
+ {"ad5253", AD5253_ID},
+ {"ad5254", AD5254_ID},
+ {"ad5255", AD5255_ID},
+ {"ad5241", AD5241_ID},
+ {"ad5242", AD5242_ID},
+ {"ad5243", AD5243_ID},
+ {"ad5245", AD5245_ID},
+ {"ad5246", AD5246_ID},
+ {"ad5247", AD5247_ID},
+ {"ad5248", AD5248_ID},
+ {"ad5280", AD5280_ID},
+ {"ad5282", AD5282_ID},
+ {"adn2860", ADN2860_ID},
+ {"ad5273", AD5273_ID},
+ {"ad5161", AD5161_ID},
+ {"ad5171", AD5171_ID},
+ {"ad5170", AD5170_ID},
+ {"ad5172", AD5172_ID},
+ {"ad5173", AD5173_ID},
+ {"ad5272", AD5272_ID},
+ {"ad5274", AD5274_ID},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, ad_dpot_id);
+
+static struct i2c_driver ad_dpot_i2c_driver = {
+ .driver = {
+ .name = "ad_dpot",
+ },
+ .probe = ad_dpot_i2c_probe,
+ .remove = ad_dpot_i2c_remove,
+ .id_table = ad_dpot_id,
+};
+
+module_i2c_driver(ad_dpot_i2c_driver);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("digital potentiometer I2C bus driver");
+MODULE_LICENSE("GPL");