[PATCH v2] lib: utils/gpio: Fix RV32 compile error for designware GPIO driver

[Anup Patel <apatel@ventanamicro.com>]

Currently, we see following compile error in the designeware GPIO driver
for RV32 systems:

lib/utils/gpio/fdt_gpio_designware.c:115:20: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
  115 |         chip->dr = (void *)addr + (bank * 0xc);
      |                    ^
lib/utils/gpio/fdt_gpio_designware.c:116:21: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
  116 |         chip->ext = (void *)addr + (bank * 4) + 0x50;

We fix the above error using an explicit type-cast to 'unsigned long'.

Fixes: 7828eebaaa77 ("gpio/desginware: add Synopsys DesignWare APB GPIO support")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Xiang W <wxjstz@126.com>
---
Changes since v1:
 - Use uintptr_t in-place of ulong data type.
---
 lib/utils/gpio/fdt_gpio_designware.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/utils/gpio/fdt_gpio_designware.c b/lib/utils/gpio/fdt_gpio_designware.c
index 6223d7e..018e2d5 100644
--- a/lib/utils/gpio/fdt_gpio_designware.c
+++ b/lib/utils/gpio/fdt_gpio_designware.c
@@ -112,8 +112,8 @@ static int dw_gpio_init_bank(void *fdt, int nodeoff, u32 phandle,
 
 	chip = &dw_gpio_chip_array[dw_gpio_chip_count];
 
-	chip->dr = (void *)addr + (bank * 0xc);
-	chip->ext = (void *)addr + (bank * 4) + 0x50;
+	chip->dr = (void *)(uintptr_t)addr + (bank * 0xc);
+	chip->ext = (void *)(uintptr_t)addr + (bank * 4) + 0x50;
 	chip->chip.driver = &fdt_gpio_designware;
 	chip->chip.id = phandle;
 	chip->chip.ngpio = nr_pins;
-- 
2.34.1