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path: root/drivers/rtc/rtc-stmp3xxx.c
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Diffstat (limited to 'drivers/rtc/rtc-stmp3xxx.c')
-rw-r--r--drivers/rtc/rtc-stmp3xxx.c51
1 files changed, 19 insertions, 32 deletions
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 67d26128bc85..483ce086990b 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -225,11 +225,7 @@ static int stmp3xxx_rtc_remove(struct platform_device *pdev)
writel(STMP3XXX_RTC_CTRL_ALARM_IRQ_EN,
rtc_data->io + STMP3XXX_RTC_CTRL_CLR);
- free_irq(rtc_data->irq_alarm, &pdev->dev);
- rtc_device_unregister(rtc_data->rtc);
platform_set_drvdata(pdev, NULL);
- iounmap(rtc_data->io);
- kfree(rtc_data);
return 0;
}
@@ -240,22 +236,20 @@ static int stmp3xxx_rtc_probe(struct platform_device *pdev)
struct resource *r;
int err;
- rtc_data = kzalloc(sizeof *rtc_data, GFP_KERNEL);
+ rtc_data = devm_kzalloc(&pdev->dev, sizeof(*rtc_data), GFP_KERNEL);
if (!rtc_data)
return -ENOMEM;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
dev_err(&pdev->dev, "failed to get resource\n");
- err = -ENXIO;
- goto out_free;
+ return -ENXIO;
}
- rtc_data->io = ioremap(r->start, resource_size(r));
+ rtc_data->io = devm_ioremap(&pdev->dev, r->start, resource_size(r));
if (!rtc_data->io) {
dev_err(&pdev->dev, "ioremap failed\n");
- err = -EIO;
- goto out_free;
+ return -EIO;
}
rtc_data->irq_alarm = platform_get_irq(pdev, 0);
@@ -263,8 +257,7 @@ static int stmp3xxx_rtc_probe(struct platform_device *pdev)
if (!(readl(STMP3XXX_RTC_STAT + rtc_data->io) &
STMP3XXX_RTC_STAT_RTC_PRESENT)) {
dev_err(&pdev->dev, "no device onboard\n");
- err = -ENODEV;
- goto out_remap;
+ return -ENODEV;
}
platform_set_drvdata(pdev, rtc_data);
@@ -279,43 +272,38 @@ static int stmp3xxx_rtc_probe(struct platform_device *pdev)
STMP3XXX_RTC_CTRL_ALARM_IRQ_EN,
rtc_data->io + STMP3XXX_RTC_CTRL_CLR);
- rtc_data->rtc = rtc_device_register(pdev->name, &pdev->dev,
+ rtc_data->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&stmp3xxx_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc_data->rtc)) {
err = PTR_ERR(rtc_data->rtc);
- goto out_remap;
+ goto out;
}
- err = request_irq(rtc_data->irq_alarm, stmp3xxx_rtc_interrupt, 0,
- "RTC alarm", &pdev->dev);
+ err = devm_request_irq(&pdev->dev, rtc_data->irq_alarm,
+ stmp3xxx_rtc_interrupt, 0, "RTC alarm", &pdev->dev);
if (err) {
dev_err(&pdev->dev, "Cannot claim IRQ%d\n",
rtc_data->irq_alarm);
- goto out_irq_alarm;
+ goto out;
}
stmp3xxx_wdt_register(pdev);
return 0;
-out_irq_alarm:
- rtc_device_unregister(rtc_data->rtc);
-out_remap:
+out:
platform_set_drvdata(pdev, NULL);
- iounmap(rtc_data->io);
-out_free:
- kfree(rtc_data);
return err;
}
-#ifdef CONFIG_PM
-static int stmp3xxx_rtc_suspend(struct platform_device *dev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int stmp3xxx_rtc_suspend(struct device *dev)
{
return 0;
}
-static int stmp3xxx_rtc_resume(struct platform_device *dev)
+static int stmp3xxx_rtc_resume(struct device *dev)
{
- struct stmp3xxx_rtc_data *rtc_data = platform_get_drvdata(dev);
+ struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev);
stmp_reset_block(rtc_data->io);
writel(STMP3XXX_RTC_PERSISTENT0_ALARM_EN |
@@ -324,11 +312,11 @@ static int stmp3xxx_rtc_resume(struct platform_device *dev)
rtc_data->io + STMP3XXX_RTC_PERSISTENT0_CLR);
return 0;
}
-#else
-#define stmp3xxx_rtc_suspend NULL
-#define stmp3xxx_rtc_resume NULL
#endif
+static SIMPLE_DEV_PM_OPS(stmp3xxx_rtc_pm_ops, stmp3xxx_rtc_suspend,
+ stmp3xxx_rtc_resume);
+
static const struct of_device_id rtc_dt_ids[] = {
{ .compatible = "fsl,stmp3xxx-rtc", },
{ /* sentinel */ }
@@ -338,11 +326,10 @@ MODULE_DEVICE_TABLE(of, rtc_dt_ids);
static struct platform_driver stmp3xxx_rtcdrv = {
.probe = stmp3xxx_rtc_probe,
.remove = stmp3xxx_rtc_remove,
- .suspend = stmp3xxx_rtc_suspend,
- .resume = stmp3xxx_rtc_resume,
.driver = {
.name = "stmp3xxx-rtc",
.owner = THIS_MODULE,
+ .pm = &stmp3xxx_rtc_pm_ops,
.of_match_table = of_match_ptr(rtc_dt_ids),
},
};