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net: mdio: mux-bcm-iproc: Use alignment helpers and SZ_4K

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Instead of open coding, use IS_ALIGNED() and ALIGN_DOWN() when dealing
with alignment. Replace also literals with SZ_4K.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Acked-by: Ray Jui <ray.jui@broadcom.com>
Link: https://lore.kernel.org/r/20231229145232.6163-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ilpo Järvinen 2023-12-29 16:52:32 +02:00 committed by Jakub Kicinski
parent 2ab1efad60
commit 73b2e2e3fe
1 changed files with 4 additions and 2 deletions
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6
drivers/net/mdio/mdio-mux-bcm-iproc.c
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@ -2,6 +2,7 @@
/*
* Copyright 2016 Broadcom
*/
#include <linux/align.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
@ -11,6 +12,7 @@
#include <linux/of_mdio.h>
#include <linux/phy.h>
#include <linux/platform_device.h>
#include <linux/sizes.h>
#define MDIO_RATE_ADJ_EXT_OFFSET 0x000
#define MDIO_RATE_ADJ_INT_OFFSET 0x004
@ -220,12 +222,12 @@ static int mdio_mux_iproc_probe(struct platform_device *pdev)
md->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(md->base))
return PTR_ERR(md->base);
if (res->start & 0xfff) {
if (!IS_ALIGNED(res->start, SZ_4K)) {
/* For backward compatibility in case the
* base address is specified with an offset.
*/
dev_info(&pdev->dev, "fix base address in dt-blob\n");
res->start &= ~0xfff;
res->start = ALIGN_DOWN(res->start, SZ_4K);
res->end = res->start + MDIO_REG_ADDR_SPACE_SIZE - 1;
}