[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/iio/dac/ad5696-i2c.c b/src/kernel/linux/v4.19/drivers/iio/dac/ad5696-i2c.c
new file mode 100644
index 0000000..7350d98
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/iio/dac/ad5696-i2c.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * AD5671R, AD5675R, AD5691R, AD5692R, AD5693, AD5693R,
+ * AD5694, AD5694R, AD5695R, AD5696, AD5696R
+ * Digital to analog converters driver
+ *
+ * Copyright 2018 Analog Devices Inc.
+ */
+
+#include "ad5686.h"
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+
+static int ad5686_i2c_read(struct ad5686_state *st, u8 addr)
+{
+ struct i2c_client *i2c = to_i2c_client(st->dev);
+ struct i2c_msg msg[2] = {
+ {
+ .addr = i2c->addr,
+ .flags = i2c->flags,
+ .len = 3,
+ .buf = &st->data[0].d8[1],
+ },
+ {
+ .addr = i2c->addr,
+ .flags = i2c->flags | I2C_M_RD,
+ .len = 2,
+ .buf = (char *)&st->data[0].d16,
+ },
+ };
+ int ret;
+
+ st->data[0].d32 = cpu_to_be32(AD5686_CMD(AD5686_CMD_NOOP) |
+ AD5686_ADDR(addr) |
+ 0x00);
+
+ ret = i2c_transfer(i2c->adapter, msg, 2);
+ if (ret < 0)
+ return ret;
+
+ return be16_to_cpu(st->data[0].d16);
+}
+
+static int ad5686_i2c_write(struct ad5686_state *st,
+ u8 cmd, u8 addr, u16 val)
+{
+ struct i2c_client *i2c = to_i2c_client(st->dev);
+ int ret;
+
+ st->data[0].d32 = cpu_to_be32(AD5686_CMD(cmd) | AD5686_ADDR(addr)
+ | val);
+
+ ret = i2c_master_send(i2c, &st->data[0].d8[1], 3);
+ if (ret < 0)
+ return ret;
+
+ return (ret != 3) ? -EIO : 0;
+}
+
+static int ad5686_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ return ad5686_probe(&i2c->dev, id->driver_data, id->name,
+ ad5686_i2c_write, ad5686_i2c_read);
+}
+
+static int ad5686_i2c_remove(struct i2c_client *i2c)
+{
+ return ad5686_remove(&i2c->dev);
+}
+
+static const struct i2c_device_id ad5686_i2c_id[] = {
+ {"ad5311r", ID_AD5311R},
+ {"ad5671r", ID_AD5671R},
+ {"ad5675r", ID_AD5675R},
+ {"ad5691r", ID_AD5691R},
+ {"ad5692r", ID_AD5692R},
+ {"ad5693", ID_AD5693},
+ {"ad5693r", ID_AD5693R},
+ {"ad5694", ID_AD5694},
+ {"ad5694r", ID_AD5694R},
+ {"ad5695r", ID_AD5695R},
+ {"ad5696", ID_AD5696},
+ {"ad5696r", ID_AD5696R},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, ad5686_i2c_id);
+
+static struct i2c_driver ad5686_i2c_driver = {
+ .driver = {
+ .name = "ad5696",
+ },
+ .probe = ad5686_i2c_probe,
+ .remove = ad5686_i2c_remove,
+ .id_table = ad5686_i2c_id,
+};
+
+module_i2c_driver(ad5686_i2c_driver);
+
+MODULE_AUTHOR("Stefan Popa <stefan.popa@analog.com>");
+MODULE_DESCRIPTION("Analog Devices AD5686 and similar multi-channel DACs");
+MODULE_LICENSE("GPL v2");