diff options
Diffstat (limited to 'drivers/rtc/rtc-vt8500.c')
| -rw-r--r-- | drivers/rtc/rtc-vt8500.c | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c index df2ef3eba7c..051da968da6 100644 --- a/drivers/rtc/rtc-vt8500.c +++ b/drivers/rtc/rtc-vt8500.c @@ -79,7 +79,6 @@ struct vt8500_rtc { void __iomem *regbase; - struct resource *res; int irq_alarm; struct rtc_device *rtc; spinlock_t lock; /* Protects this structure */ @@ -209,6 +208,7 @@ static const struct rtc_class_ops vt8500_rtc_ops = { static int vt8500_rtc_probe(struct platform_device *pdev) { struct vt8500_rtc *vt8500_rtc; + struct resource *res; int ret; vt8500_rtc = devm_kzalloc(&pdev->dev, @@ -219,34 +219,16 @@ static int vt8500_rtc_probe(struct platform_device *pdev) spin_lock_init(&vt8500_rtc->lock); platform_set_drvdata(pdev, vt8500_rtc); - vt8500_rtc->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!vt8500_rtc->res) { - dev_err(&pdev->dev, "No I/O memory resource defined\n"); - return -ENXIO; - } - vt8500_rtc->irq_alarm = platform_get_irq(pdev, 0); if (vt8500_rtc->irq_alarm < 0) { dev_err(&pdev->dev, "No alarm IRQ resource defined\n"); return vt8500_rtc->irq_alarm; } - vt8500_rtc->res = devm_request_mem_region(&pdev->dev, - vt8500_rtc->res->start, - resource_size(vt8500_rtc->res), - "vt8500-rtc"); - if (vt8500_rtc->res == NULL) { - dev_err(&pdev->dev, "failed to request I/O memory\n"); - return -EBUSY; - } - - vt8500_rtc->regbase = devm_ioremap(&pdev->dev, vt8500_rtc->res->start, - resource_size(vt8500_rtc->res)); - if (!vt8500_rtc->regbase) { - dev_err(&pdev->dev, "Unable to map RTC I/O memory\n"); - ret = -EBUSY; - goto err_return; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + vt8500_rtc->regbase = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(vt8500_rtc->regbase)) + return PTR_ERR(vt8500_rtc->regbase); /* Enable RTC and set it to 24-hour mode */ writel(VT8500_RTC_CR_ENABLE, |