drivers/rtc/rtc-ds1742.c: use devm_ioremap_resource()
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>
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@ -56,7 +56,6 @@ struct rtc_plat_data {
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void __iomem *ioaddr_nvram;
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void __iomem *ioaddr_rtc;
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size_t size_nvram;
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size_t size;
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unsigned long last_jiffies;
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struct bin_attribute nvram_attr;
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};
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@ -168,22 +167,17 @@ static int ds1742_rtc_probe(struct platform_device *pdev)
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void __iomem *ioaddr;
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int ret = 0;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res)
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return -ENODEV;
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pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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return -ENOMEM;
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pdata->size = resource_size(res);
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if (!devm_request_mem_region(&pdev->dev, res->start, pdata->size,
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pdev->name))
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return -EBUSY;
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ioaddr = devm_ioremap(&pdev->dev, res->start, pdata->size);
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if (!ioaddr)
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return -ENOMEM;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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ioaddr = devm_ioremap_resource(&pdev->dev, res);
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if (IS_ERR(ioaddr))
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return PTR_ERR(ioaddr);
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pdata->ioaddr_nvram = ioaddr;
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pdata->size_nvram = pdata->size - RTC_SIZE;
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pdata->size_nvram = resource_size(res) - RTC_SIZE;
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pdata->ioaddr_rtc = ioaddr + pdata->size_nvram;
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sysfs_bin_attr_init(&pdata->nvram_attr);
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