driver: i2c: cc13xx_cc26xx: to support i2c scan

 Sending address without data, make `i2c scan I2C_0` work.

Signed-off-by: Baozhu Zuo <[email protected]>

Author: Pillar1989

drivers/i2c/i2c_cc13xx_cc26xx.c

@@ -58,12 +58,20 @@ static int i2c_cc13xx_cc26xx_transmit(const struct device *dev,
 	const uint32_t base = get_dev_config(dev)->base;
 	struct i2c_cc13xx_cc26xx_data *data = get_dev_data(dev);
 
-	/* Sending address without data is not supported */
+	I2CMasterSlaveAddrSet(base, addr, false);
+
+	/* Sending address without data is not supported, for `i2c scan` or other
+	 * function still neeed send i2c address check the device status.
+	 */
 	if (len == 0) {
-		return -EIO;
+
+		I2CMasterControl(base, I2C_MASTER_CMD_SINGLE_SEND);
+
+		k_sem_take(&data->complete, K_FOREVER);
+
+		return data->error == I2C_MASTER_ERR_NONE ? 0 : -EIO;
 	}
 
-	I2CMasterSlaveAddrSet(base, addr, false);
 
 	/* The following assumes a single master. Use I2CMasterBusBusy() if
 	 * wanting to implement multiple master support.