dm: i2c: Rename driver model I2C functions to permit compatibility

Add a dm_ prefix to driver model I2C functions so that we can keep the old
ones around.

This is a little unfortunate, but on reflection it is too difficult to
change the API. We can undo this rename when most boards and drivers are
converted to use driver model for I2C.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 9 insertions, 10 deletions

diff --git a/include/i2c.h b/include/i2c.h
index 9c6a60cf9ae..30d53c8a9df 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -75,7 +75,7 @@ struct dm_i2c_bus {
 };
 
 /**
- * i2c_read() - read bytes from an I2C chip
+ * dm_i2c_read() - read bytes from an I2C chip
  *
  * To obtain an I2C device (called a 'chip') given the I2C bus address you
  * can use i2c_get_chip(). To obtain a bus by bus number use
@@ -91,13 +91,12 @@ struct dm_i2c_bus {
  *
  * @return 0 on success, -ve on failure
  */
-int i2c_read(struct udevice *dev, uint offset, uint8_t *buffer,
-	     int len);
+int dm_i2c_read(struct udevice *dev, uint offset, uint8_t *buffer, int len);
 
 /**
- * i2c_write() - write bytes to an I2C chip
+ * dm_i2c_write() - write bytes to an I2C chip
  *
- * See notes for i2c_read() above.
+ * See notes for dm_i2c_read() above.
  *
  * @dev:	Chip to write to
  * @offset:	Offset within chip to start writing
@@ -106,11 +105,11 @@ int i2c_read(struct udevice *dev, uint offset, uint8_t *buffer,
  *
  * @return 0 on success, -ve on failure
  */
-int i2c_write(struct udevice *dev, uint offset, const uint8_t *buffer,
-	      int len);
+int dm_i2c_write(struct udevice *dev, uint offset, const uint8_t *buffer,
+		 int len);
 
 /**
- * i2c_probe() - probe a particular chip address
+ * dm_i2c_probe() - probe a particular chip address
  *
  * This can be useful to check for the existence of a chip on the bus.
  * It is typically implemented by writing the chip address to the bus
@@ -122,8 +121,8 @@ int i2c_write(struct udevice *dev, uint offset, const uint8_t *buffer,
  * @devp:	Returns the device found, or NULL if none
  * @return 0 if a chip was found at that address, -ve if not
  */
-int i2c_probe(struct udevice *bus, uint chip_addr, uint chip_flags,
-	      struct udevice **devp);
+int dm_i2c_probe(struct udevice *bus, uint chip_addr, uint chip_flags,
+		 struct udevice **devp);
 
 /**
  * i2c_set_bus_speed() - set the speed of a bus