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path: root/drivers/rtc/rtc-ds1511.c
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Diffstat (limited to 'drivers/rtc/rtc-ds1511.c')
-rw-r--r--drivers/rtc/rtc-ds1511.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index 308a8fefe76f..bc7b4fcf603c 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -89,7 +89,6 @@ enum ds1511reg {
struct rtc_plat_data {
struct rtc_device *rtc;
void __iomem *ioaddr; /* virtual base address */
- int size; /* amount of memory mapped */
int irq;
unsigned int irqen;
int alrm_sec;
@@ -479,20 +478,14 @@ static int ds1511_rtc_probe(struct platform_device *pdev)
struct rtc_plat_data *pdata;
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;
- ds1511_base = devm_ioremap(&pdev->dev, res->start, pdata->size);
- if (!ds1511_base)
- return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ds1511_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ds1511_base))
+ return PTR_ERR(ds1511_base);
pdata->ioaddr = ds1511_base;
pdata->irq = platform_get_irq(pdev, 0);