mmc: arm_pl180_mmci: Simplify code using dev_read_addr_ptr()

Simplify the code a bit by using dev_read_addr_ptr() instead of
dev_read_addr(). This avoids having to cast explicitly to void*.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com> on stm32f769-disco
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c
index 5d1ee64..e632eed 100644
--- a/drivers/mmc/arm_pl180_mmci.c
+++ b/drivers/mmc/arm_pl180_mmci.c
@@ -526,14 +526,11 @@
 static int arm_pl180_mmc_of_to_plat(struct udevice *dev)
 {
 	struct pl180_mmc_host *host = dev_get_priv(dev);
-	fdt_addr_t addr;
 
-	addr = dev_read_addr(dev);
-	if (addr == FDT_ADDR_T_NONE)
+	host->base = dev_read_addr_ptr(dev);
+	if (!host->base)
 		return -EINVAL;
 
-	host->base = (void *)addr;
-
 	return 0;
 }