serial: zynq: Fix address reading from DM

Use dev_get_addr() instead of reading reg base directly in the driver.
Core function is also more robust.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/serial/serial_zynq.c b/drivers/serial/serial_zynq.c
index 112a7a2..e79d997 100644 (file)
--- a/drivers/serial/serial_zynq.c
+++ b/drivers/serial/serial_zynq.c
@@ -156,13 +156,8 @@ static int zynq_serial_pending(struct udevice *dev, bool input)
 static int zynq_serial_ofdata_to_platdata(struct udevice *dev)
 {
        struct zynq_uart_priv *priv = dev_get_priv(dev);
-       fdt_addr_t addr;
 
-       addr = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg");
-       if (addr == FDT_ADDR_T_NONE)
-               return -EINVAL;
-
-       priv->regs = (struct uart_zynq *)addr;
+       priv->regs = (struct uart_zynq *)dev_get_addr(dev);
 
        return 0;
 }