dm: i2c: Add a dm_ prefix to driver model bus speed functions

As with i2c_read() and i2c_write(), add a dm_ prefix to the driver model
versions of these functions to avoid conflicts.

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

common/cmd_i2c.c

@@ -1730,7 +1730,7 @@ static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const
 #endif
 	if (argc == 1) {
 #ifdef CONFIG_DM_I2C
-		speed = i2c_get_bus_speed(bus);
+		speed = dm_i2c_get_bus_speed(bus);
 #else
 		speed = i2c_get_bus_speed();
 #endif
@@ -1740,7 +1740,7 @@ static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const
 		speed = simple_strtoul(argv[1], NULL, 10);
 		printf("Setting bus speed to %d Hz\n", speed);
 #ifdef CONFIG_DM_I2C
-		ret = i2c_set_bus_speed(bus, speed);
+		ret = dm_i2c_set_bus_speed(bus, speed);
 #else
 		ret = i2c_set_bus_speed(speed);
 #endif

drivers/i2c/i2c-uclass.c

@@ -325,7 +325,7 @@ int dm_i2c_probe(struct udevice *bus, uint chip_addr, uint chip_flags,
 	return ret;
 }
 
-int i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
+int dm_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
 {
 	struct dm_i2c_ops *ops = i2c_get_ops(bus);
 	struct dm_i2c_bus *i2c = bus->uclass_priv;
@@ -346,12 +346,7 @@ int i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
 	return 0;
 }
 
-/*
- * i2c_get_bus_speed:
- *
- *  Returns speed of selected I2C bus in Hz
- */
-int i2c_get_bus_speed(struct udevice *bus)
+int dm_i2c_get_bus_speed(struct udevice *bus)
 {
 	struct dm_i2c_ops *ops = i2c_get_ops(bus);
 	struct dm_i2c_bus *i2c = bus->uclass_priv;
@@ -440,7 +435,7 @@ static int i2c_post_probe(struct udevice *dev)
 	i2c->speed_hz = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
 				     "clock-frequency", 100000);
 
-	return i2c_set_bus_speed(dev, i2c->speed_hz);
+	return dm_i2c_set_bus_speed(dev, i2c->speed_hz);
 }
 
 static int i2c_post_bind(struct udevice *dev)

include/i2c.h

@@ -125,21 +125,21 @@ 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
+ * dm_i2c_set_bus_speed() - set the speed of a bus
  *
  * @bus:	Bus to adjust
  * @speed:	Requested speed in Hz
  * @return 0 if OK, -EINVAL for invalid values
  */
-int i2c_set_bus_speed(struct udevice *bus, unsigned int speed);
+int dm_i2c_set_bus_speed(struct udevice *bus, unsigned int speed);
 
 /**
- * i2c_get_bus_speed() - get the speed of a bus
+ * dm_i2c_get_bus_speed() - get the speed of a bus
  *
  * @bus:	Bus to check
  * @return speed of selected I2C bus in Hz, -ve on error
  */
-int i2c_get_bus_speed(struct udevice *bus);
+int dm_i2c_get_bus_speed(struct udevice *bus);
 
 /**
  * i2c_set_chip_flags() - set flags for a chip

test/dm/i2c.c

@@ -67,10 +67,10 @@ static int dm_test_i2c_speed(struct dm_test_state *dms)
 
 	ut_assertok(uclass_get_device_by_seq(UCLASS_I2C, busnum, &bus));
 	ut_assertok(i2c_get_chip(bus, chip, 1, &dev));
-	ut_assertok(i2c_set_bus_speed(bus, 100000));
+	ut_assertok(dm_i2c_set_bus_speed(bus, 100000));
 	ut_assertok(dm_i2c_read(dev, 0, buf, 5));
-	ut_assertok(i2c_set_bus_speed(bus, 400000));
-	ut_asserteq(400000, i2c_get_bus_speed(bus));
+	ut_assertok(dm_i2c_set_bus_speed(bus, 400000));
+	ut_asserteq(400000, dm_i2c_get_bus_speed(bus));
 	ut_assertok(dm_i2c_read(dev, 0, buf, 5));
 	ut_asserteq(-EINVAL, dm_i2c_write(dev, 0, buf, 5));