1 files changed, 11 insertions, 23 deletions

diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index 4ec614b0954d..ad44ec5dc29a 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -352,14 +352,14 @@ static int bfin_rtc_probe(struct platform_device *pdev)
         dev_dbg_stamp(dev);
 
         /* Allocate memory for our RTC struct */
-        rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
+        rtc = devm_kzalloc(dev, sizeof(*rtc), GFP_KERNEL);
         if (unlikely(!rtc))
                 return -ENOMEM;
         platform_set_drvdata(pdev, rtc);
         device_init_wakeup(dev, 1);
 
         /* Register our RTC with the RTC framework */
-        rtc->rtc_dev = rtc_device_register(pdev->name, dev, &bfin_rtc_ops,
+        rtc->rtc_dev = devm_rtc_device_register(dev, pdev->name, &bfin_rtc_ops,
                                                 THIS_MODULE);
         if (unlikely(IS_ERR(rtc->rtc_dev))) {
                 ret = PTR_ERR(rtc->rtc_dev);
@@ -367,9 +367,10 @@ static int bfin_rtc_probe(struct platform_device *pdev)
         }
 
         /* Grab the IRQ and init the hardware */
-        ret = request_irq(IRQ_RTC, bfin_rtc_interrupt, 0, pdev->name, dev);
+        ret = devm_request_irq(dev, IRQ_RTC, bfin_rtc_interrupt, 0,
+                                pdev->name, dev);
         if (unlikely(ret))
-                goto err_reg;
+                goto err;
         /* sometimes the bootloader touched things, but the write complete was not
          * enabled, so let's just do a quick timeout here since the IRQ will not fire ...
          */
@@ -381,32 +382,23 @@ static int bfin_rtc_probe(struct platform_device *pdev)
 
         return 0;
 
-err_reg:
-        rtc_device_unregister(rtc->rtc_dev);
 err:
-        kfree(rtc);
         return ret;
 }
 
 static int bfin_rtc_remove(struct platform_device *pdev)
 {
-        struct bfin_rtc *rtc = platform_get_drvdata(pdev);
         struct device *dev = &pdev->dev;
 
         bfin_rtc_reset(dev, 0);
-        free_irq(IRQ_RTC, dev);
-        rtc_device_unregister(rtc->rtc_dev);
         platform_set_drvdata(pdev, NULL);
-        kfree(rtc);
 
         return 0;
 }
 
-#ifdef CONFIG_PM
-static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int bfin_rtc_suspend(struct device *dev)
 {
-        struct device *dev = &pdev->dev;
-
         dev_dbg_stamp(dev);
 
         if (device_may_wakeup(dev)) {
@@ -418,10 +410,8 @@ static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state)
         return 0;
 }
 
-static int bfin_rtc_resume(struct platform_device *pdev)
+static int bfin_rtc_resume(struct device *dev)
 {
-        struct device *dev = &pdev->dev;
-
         dev_dbg_stamp(dev);
 
         if (device_may_wakeup(dev))
@@ -440,20 +430,18 @@ static int bfin_rtc_resume(struct platform_device *pdev)
 
         return 0;
 }
-#else
-# define bfin_rtc_suspend NULL
-# define bfin_rtc_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(bfin_rtc_pm_ops, bfin_rtc_suspend, bfin_rtc_resume);
+
 static struct platform_driver bfin_rtc_driver = {
         .driver         = {
                 .name   = "rtc-bfin",
                 .owner  = THIS_MODULE,
+                .pm     = &bfin_rtc_pm_ops,
         },
         .probe          = bfin_rtc_probe,
         .remove         = bfin_rtc_remove,
-        .suspend        = bfin_rtc_suspend,
-        .resume         = bfin_rtc_resume,
 };
 
 module_platform_driver(bfin_rtc_driver);