[PATCH 3/9] gpio: sifive: Fix -Wint-to-pointer-cast warning

[Bin Meng]

dev_read_addr() returns a value of type fdt_addr_t which is a 64-bit
address and plat->base is a pointer. In a 32-bit build, this causes the
following warning seen when building sifive-gpio.c:

  warning: cast to pointer from integer of different size 
[-Wint-to-pointer-cast]

Change to use dev_read_addr_ptr().

Signed-off-by: Bin Meng <bmeng...@gmail.com>
---

 drivers/gpio/sifive-gpio.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/sifive-gpio.c b/drivers/gpio/sifive-gpio.c
index abd1f629b9..151f484e8f 100644
--- a/drivers/gpio/sifive-gpio.c
+++ b/drivers/gpio/sifive-gpio.c
@@ -157,13 +157,11 @@ static const struct dm_gpio_ops sifive_gpio_ops = {
 static int sifive_gpio_of_to_plat(struct udevice *dev)
 {
        struct sifive_gpio_plat *plat = dev_get_plat(dev);
-       fdt_addr_t addr;
 
-       addr = dev_read_addr(dev);
-       if (addr == FDT_ADDR_T_NONE)
+       plat->base = dev_read_addr_ptr(dev);
+       if (!plat->base)
                return -EINVAL;
 
-       plat->base = (void *)addr;
        return 0;
 }
 
-- 
2.25.1