From bbccf83f6c4e1a0de5bdf51ec9ec708d3a1ce933 Mon Sep 17 00:00:00 2001
From: Alessandro Zummo <a.zummo@towertech.it>
Date: Tue, 6 Jan 2009 14:42:21 -0800
Subject: [PATCH] rtc: use set_mmss when set_time is not available
Drivers should only need to implement either set_mmss (counter based RTCs)
or set_time (most RTCs). The RTC subsystem will handle them
appropriately.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/rtc/interface.c | 11 ++++++++---
drivers/rtc/rtc-ds1672.c | 22 ----------------------
drivers/rtc/rtc-ep93xx.c | 13 -------------
drivers/rtc/rtc-test.c | 8 +-------
4 files changed, 9 insertions(+), 45 deletions(-)
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 50482d1321e81..4348c4b0d4536 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -50,10 +50,15 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
if (!rtc->ops)
err = -ENODEV;
- else if (!rtc->ops->set_time)
- err = -EINVAL;
- else
+ else if (rtc->ops->set_time)
err = rtc->ops->set_time(rtc->dev.parent, tm);
+ else if (rtc->ops->set_mmss) {
+ unsigned long secs;
+ err = rtc_tm_to_time(tm, &secs);
+ if (err == 0)
+ err = rtc->ops->set_mmss(rtc->dev.parent, secs);
+ } else
+ err = -EINVAL;
mutex_unlock(&rtc->ops_lock);
return err;
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index 4e91419e8911c..06dfb54f99b6a 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -83,32 +83,11 @@ static int ds1672_set_mmss(struct i2c_client *client, unsigned long secs)
return 0;
}
-static int ds1672_set_datetime(struct i2c_client *client, struct rtc_time *tm)
-{
- unsigned long secs;
-
- dev_dbg(&client->dev,
- "%s: secs=%d, mins=%d, hours=%d, "
- "mday=%d, mon=%d, year=%d, wday=%d\n",
- __func__,
- tm->tm_sec, tm->tm_min, tm->tm_hour,
- tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-
- rtc_tm_to_time(tm, &secs);
-
- return ds1672_set_mmss(client, secs);
-}
-
static int ds1672_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
return ds1672_get_datetime(to_i2c_client(dev), tm);
}
-static int ds1672_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
- return ds1672_set_datetime(to_i2c_client(dev), tm);
-}
-
static int ds1672_rtc_set_mmss(struct device *dev, unsigned long secs)
{
return ds1672_set_mmss(to_i2c_client(dev), secs);
@@ -152,7 +131,6 @@ static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);
static const struct rtc_class_ops ds1672_rtc_ops = {
.read_time = ds1672_rtc_read_time,
- .set_time = ds1672_rtc_set_time,
.set_mmss = ds1672_rtc_set_mmss,
};
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index 36e4ac0bd69c9..f7a3283dd0294 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -49,18 +49,6 @@ static int ep93xx_rtc_set_mmss(struct device *dev, unsigned long secs)
return 0;
}
-static int ep93xx_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
- int err;
- unsigned long secs;
-
- err = rtc_tm_to_time(tm, &secs);
- if (err != 0)
- return err;
-
- return ep93xx_rtc_set_mmss(dev, secs);
-}
-
static int ep93xx_rtc_proc(struct device *dev, struct seq_file *seq)
{
unsigned short preload, delete;
@@ -75,7 +63,6 @@ static int ep93xx_rtc_proc(struct device *dev, struct seq_file *seq)
static const struct rtc_class_ops ep93xx_rtc_ops = {
.read_time = ep93xx_rtc_read_time,
- .set_time = ep93xx_rtc_set_time,
.set_mmss = ep93xx_rtc_set_mmss,
.proc = ep93xx_rtc_proc,
};
diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c
index bc930022004a5..e478280ff6283 100644
--- a/drivers/rtc/rtc-test.c
+++ b/drivers/rtc/rtc-test.c
@@ -34,14 +34,9 @@ static int test_rtc_read_time(struct device *dev,
return 0;
}
-static int test_rtc_set_time(struct device *dev,
- struct rtc_time *tm)
-{
- return 0;
-}
-
static int test_rtc_set_mmss(struct device *dev, unsigned long secs)
{
+ dev_info(dev, "%s, secs = %lu\n", __func__, secs);
return 0;
}
@@ -78,7 +73,6 @@ static int test_rtc_ioctl(struct device *dev, unsigned int cmd,
static const struct rtc_class_ops test_rtc_ops = {
.proc = test_rtc_proc,
.read_time = test_rtc_read_time,
- .set_time = test_rtc_set_time,
.read_alarm = test_rtc_read_alarm,
.set_alarm = test_rtc_set_alarm,
.set_mmss = test_rtc_set_mmss,
--
2.30.2