rtc: rtc-starfire fixes
Changes:
- remove locks, rtc class provides them
- remove unused include
- if the rtc can't handle set_time, the driver should not fake it
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/rtc/rtc-starfire.c b/drivers/rtc/rtc-starfire.c
index 7ccb0dd..5be98bf 100644
--- a/drivers/rtc/rtc-starfire.c
+++ b/drivers/rtc/rtc-starfire.c
@@ -6,7 +6,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/time.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>
@@ -16,11 +15,6 @@
MODULE_DESCRIPTION("Starfire RTC driver");
MODULE_LICENSE("GPL");
-struct starfire_rtc {
- struct rtc_device *rtc;
- spinlock_t lock;
-};
-
static u32 starfire_get_time(void)
{
static char obp_gettod[32];
@@ -35,64 +29,31 @@
static int starfire_read_time(struct device *dev, struct rtc_time *tm)
{
- struct starfire_rtc *p = dev_get_drvdata(dev);
- unsigned long flags, secs;
-
- spin_lock_irqsave(&p->lock, flags);
- secs = starfire_get_time();
- spin_unlock_irqrestore(&p->lock, flags);
-
- rtc_time_to_tm(secs, tm);
-
- return 0;
-}
-
-static int starfire_set_time(struct device *dev, struct rtc_time *tm)
-{
- unsigned long secs;
- int err;
-
- err = rtc_tm_to_time(tm, &secs);
- if (err)
- return err;
-
- /* Do nothing, time is set using the service processor
- * console on this platform.
- */
- return 0;
+ rtc_time_to_tm(starfire_get_time(), tm);
+ return rtc_valid_tm(tm);
}
static const struct rtc_class_ops starfire_rtc_ops = {
.read_time = starfire_read_time,
- .set_time = starfire_set_time,
};
-static int __devinit starfire_rtc_probe(struct platform_device *pdev)
+static int __init starfire_rtc_probe(struct platform_device *pdev)
{
- struct starfire_rtc *p = kzalloc(sizeof(*p), GFP_KERNEL);
-
- if (!p)
- return -ENOMEM;
-
- spin_lock_init(&p->lock);
-
- p->rtc = rtc_device_register("starfire", &pdev->dev,
+ struct rtc_device *rtc = rtc_device_register("starfire", &pdev->dev,
&starfire_rtc_ops, THIS_MODULE);
- if (IS_ERR(p->rtc)) {
- int err = PTR_ERR(p->rtc);
- kfree(p);
- return err;
- }
- platform_set_drvdata(pdev, p);
+ if (IS_ERR(rtc))
+ return PTR_ERR(rtc);
+
+ platform_set_drvdata(pdev, rtc);
+
return 0;
}
-static int __devexit starfire_rtc_remove(struct platform_device *pdev)
+static int __exit starfire_rtc_remove(struct platform_device *pdev)
{
- struct starfire_rtc *p = platform_get_drvdata(pdev);
+ struct rtc_device *rtc = platform_get_drvdata(pdev);
- rtc_device_unregister(p->rtc);
- kfree(p);
+ rtc_device_unregister(rtc);
return 0;
}
@@ -102,13 +63,12 @@
.name = "rtc-starfire",
.owner = THIS_MODULE,
},
- .probe = starfire_rtc_probe,
- .remove = __devexit_p(starfire_rtc_remove),
+ .remove = __exit_p(starfire_rtc_remove),
};
static int __init starfire_rtc_init(void)
{
- return platform_driver_register(&starfire_rtc_driver);
+ return platform_driver_probe(&starfire_rtc_driver, starfire_rtc_probe);
}
static void __exit starfire_rtc_exit(void)