powerpc/usbgecko: Use of_iomap()

Replace of_get_property()+of_translate_address()+ioremap() with a call
to of_iomap() which does all those steps.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230327223109.820381-1-robh@kernel.org

diff --git a/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c b/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
index e02bdab..221577f 100644 (file)
--- a/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
+++ b/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
@@ -193,24 +193,6 @@ static int ug_udbg_getc_poll(void)
 }
 
 /*
- * Retrieves and prepares the virtual address needed to access the hardware.
- */
-static void __iomem *__init ug_udbg_setup_exi_io_base(struct device_node *np)
-{
-       void __iomem *exi_io_base = NULL;
-       phys_addr_t paddr;
-       const unsigned int *reg;
-
-       reg = of_get_property(np, "reg", NULL);
-       if (reg) {
-               paddr = of_translate_address(np, reg);
-               if (paddr)
-                       exi_io_base = ioremap(paddr, reg[1]);
-       }
-       return exi_io_base;
-}
-
-/*
  * Checks if a USB Gecko adapter is inserted in any memory card slot.
  */
 static void __iomem *__init ug_udbg_probe(void __iomem *exi_io_base)
@@ -246,7 +228,7 @@ void __init ug_udbg_init(void)
                goto out;
        }
 
-       exi_io_base = ug_udbg_setup_exi_io_base(np);
+       exi_io_base = of_iomap(np, 0);
        if (!exi_io_base) {
                udbg_printf("%s: failed to setup EXI io base\n", __func__);
                goto done;