Merge git://git.denx.de/u-boot-dm

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index eaba965fa3..50b99ead3d 100644
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -18,6 +18,22 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define I2C_MAX_OFFSET_LEN	4
 
+/* Useful debugging function */
+void i2c_dump_msgs(struct i2c_msg *msg, int nmsgs)
+{
+	int i;
+
+	for (i = 0; i < nmsgs; i++) {
+		struct i2c_msg *m = &msg[i];
+
+		printf("   %s %x len=%x", m->flags & I2C_M_RD ? "R" : "W",
+		       msg->addr, msg->len);
+		if (!(m->flags & I2C_M_RD))
+			printf(": %x", m->buf[0]);
+		printf("\n");
+	}
+}
+
 /**
  * i2c_setup_offset() - Set up a new message with a chip offset
  *
@@ -186,6 +202,17 @@ int dm_i2c_write(struct udevice *dev, uint offset, const uint8_t *buffer,
 	}
 }
 
+int dm_i2c_xfer(struct udevice *dev, struct i2c_msg *msg, int nmsgs)
+{
+	struct udevice *bus = dev_get_parent(dev);
+	struct dm_i2c_ops *ops = i2c_get_ops(bus);
+
+	if (!ops->xfer)
+		return -ENOSYS;
+
+	return ops->xfer(bus, msg, nmsgs);
+}
+
 int dm_i2c_reg_read(struct udevice *dev, uint offset)
 {
 	uint8_t val;