linux-kernel - [PATCH] powerpc: usbgecko: Use of

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Message-Id: <20230327223109.820381-1-robh@kernel.org>
Date:   Mon, 27 Mar 2023 17:31:09 -0500
From:   Rob Herring <robh@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] 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@...nel.org>
---
 .../platforms/embedded6xx/usbgecko_udbg.c     | 20 +------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c b/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
index e02bdabf358c..221577f32b01 100644
--- a/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
+++ b/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
@@ -192,24 +192,6 @@ static int ug_udbg_getc_poll(void)
 	return ug_getc();
 }
 
-/*
- * 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.
  */
@@ -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;
-- 
2.39.2