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drivers/rtc/rtc-ds1742.c: use devm_ioremap_resource()

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Replace devm_request_mem_region() and devm_ioremap() with
devm_ioremap_resource().

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Shiyan 2013-09-11 14:24:24 -07:00 committed by Linus Torvalds
parent 28984c7d94
commit 25e2818e38
1 changed files with 6 additions and 12 deletions
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18
drivers/rtc/rtc-ds1742.c
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@ -56,7 +56,6 @@ struct rtc_plat_data {
void __iomem *ioaddr_nvram;
void __iomem *ioaddr_rtc;
size_t size_nvram;
size_t size;
unsigned long last_jiffies;
struct bin_attribute nvram_attr;
};
@ -168,22 +167,17 @@ static int ds1742_rtc_probe(struct platform_device *pdev)
void __iomem *ioaddr;
int ret = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev, res->start, pdata->size,
pdev->name))
return -EBUSY;
ioaddr = devm_ioremap(&pdev->dev, res->start, pdata->size);
if (!ioaddr)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ioaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ioaddr))
return PTR_ERR(ioaddr);
pdata->ioaddr_nvram = ioaddr;
pdata->size_nvram = pdata->size - RTC_SIZE;
pdata->size_nvram = resource_size(res) - RTC_SIZE;
pdata->ioaddr_rtc = ioaddr + pdata->size_nvram;
sysfs_bin_attr_init(&pdata->nvram_attr);