dm: i2c: Move definitions to the top of the header file

Move the flags and struct definitions higher in the file so that we can
reference them with functions declared in the driver model section.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>

include/i2c.h

@@ -74,6 +74,49 @@ struct dm_i2c_bus {
 	int speed_hz;
 };
 
+/*
+ * Not all of these flags are implemented in the U-Boot API
+ */
+enum dm_i2c_msg_flags {
+	I2C_M_TEN		= 0x0010, /* ten-bit chip address */
+	I2C_M_RD		= 0x0001, /* read data, from slave to master */
+	I2C_M_STOP		= 0x8000, /* send stop after this message */
+	I2C_M_NOSTART		= 0x4000, /* no start before this message */
+	I2C_M_REV_DIR_ADDR	= 0x2000, /* invert polarity of R/W bit */
+	I2C_M_IGNORE_NAK	= 0x1000, /* continue after NAK */
+	I2C_M_NO_RD_ACK		= 0x0800, /* skip the Ack bit on reads */
+	I2C_M_RECV_LEN		= 0x0400, /* length is first received byte */
+};
+
+/**
+ * struct i2c_msg - an I2C message
+ *
+ * @addr:	Slave address
+ * @flags:	Flags (see enum dm_i2c_msg_flags)
+ * @len:	Length of buffer in bytes, may be 0 for a probe
+ * @buf:	Buffer to send/receive, or NULL if no data
+ */
+struct i2c_msg {
+	uint addr;
+	uint flags;
+	uint len;
+	u8 *buf;
+};
+
+/**
+ * struct i2c_msg_list - a list of I2C messages
+ *
+ * This is called i2c_rdwr_ioctl_data in Linux but the name does not seem
+ * appropriate in U-Boot.
+ *
+ * @msg:	Pointer to i2c_msg array
+ * @nmsgs:	Number of elements in the array
+ */
+struct i2c_msg_list {
+	struct i2c_msg *msgs;
+	uint nmsgs;
+};
+
 /**
  * dm_i2c_read() - read bytes from an I2C chip
  *
@@ -294,49 +337,6 @@ void i2c_reg_write(uint8_t addr, uint8_t reg, uint8_t val);
 
 #endif
 
-/*
- * Not all of these flags are implemented in the U-Boot API
- */
-enum dm_i2c_msg_flags {
-	I2C_M_TEN		= 0x0010, /* ten-bit chip address */
-	I2C_M_RD		= 0x0001, /* read data, from slave to master */
-	I2C_M_STOP		= 0x8000, /* send stop after this message */
-	I2C_M_NOSTART		= 0x4000, /* no start before this message */
-	I2C_M_REV_DIR_ADDR	= 0x2000, /* invert polarity of R/W bit */
-	I2C_M_IGNORE_NAK	= 0x1000, /* continue after NAK */
-	I2C_M_NO_RD_ACK		= 0x0800, /* skip the Ack bit on reads */
-	I2C_M_RECV_LEN		= 0x0400, /* length is first received byte */
-};
-
-/**
- * struct i2c_msg - an I2C message
- *
- * @addr:	Slave address
- * @flags:	Flags (see enum dm_i2c_msg_flags)
- * @len:	Length of buffer in bytes, may be 0 for a probe
- * @buf:	Buffer to send/receive, or NULL if no data
- */
-struct i2c_msg {
-	uint addr;
-	uint flags;
-	uint len;
-	u8 *buf;
-};
-
-/**
- * struct i2c_msg_list - a list of I2C messages
- *
- * This is called i2c_rdwr_ioctl_data in Linux but the name does not seem
- * appropriate in U-Boot.
- *
- * @msg:	Pointer to i2c_msg array
- * @nmsgs:	Number of elements in the array
- */
-struct i2c_msg_list {
-	struct i2c_msg *msgs;
-	uint nmsgs;
-};
-
 /**
  * struct dm_i2c_ops - driver operations for I2C uclass
  *