[PATCH v3 17/38] mmc: exynos_dw_mmc: Fix obtaining the base address of controller

[Sam Protsenko]

Getting the base address with outdated fdtdec_get_addr() API and further
casting it to (void *) leads to next build warning on ARM64 platforms:

    In function 'exynos_dwmci_get_config':
        warning: cast to pointer from integer of different size
        [-Wint-to-pointer-cast]
            host->ioaddr = (void *)base;

Use livetree API instead (dev_read_addr_ptr()), which handles this
correctly.

Fixes: a082a2dde061 ("EXYNOS5: DWMMC: Added FDT support for DWMMC")
Signed-off-by: Sam Protsenko <semen.protsenko at linaro.org>
---
Changes in v3:
  - (none)

Changes in v2:
  - (none)

 drivers/mmc/exynos_dw_mmc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/exynos_dw_mmc.c b/drivers/mmc/exynos_dw_mmc.c
index 377c9e6d90b9..a86d58663c1b 100644
--- a/drivers/mmc/exynos_dw_mmc.c
+++ b/drivers/mmc/exynos_dw_mmc.c
@@ -155,7 +155,7 @@ static int exynos_dwmci_get_config(struct udevice *dev, const void *blob,
 				   struct dwmci_exynos_priv_data *priv)
 {
 	int err = 0;
-	u32 base, timing[3];
+	u32 timing[3];
 
 	/* Extract device id for each mmc channel */
 	host->dev_id = pinmux_decode_periph_id(blob, node);
@@ -173,12 +173,11 @@ static int exynos_dwmci_get_config(struct udevice *dev, const void *blob,
 	host->buswidth = fdtdec_get_int(blob, node, "samsung,bus-width", 4);
 
 	/* Set the base address from the device node */
-	base = fdtdec_get_addr(blob, node, "reg");
-	if (!base) {
+	host->ioaddr = dev_read_addr_ptr(dev);
+	if (!host->ioaddr) {
 		printf("DWMMC%d: Can't get base address\n", host->dev_index);
 		return -EINVAL;
 	}
-	host->ioaddr = (void *)base;
 
 	/* Extract the timing info from the node */
 	err =  fdtdec_get_int_array(blob, node, "samsung,timing", timing, 3);
-- 
2.39.2