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rtc: rtc interfaces don't use class_device

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This patch removes class_device from the programming interface that the RTC
framework exposes to the rest of the kernel.  Now an rtc_device is passed,
which is more type-safe and streamlines all the relevant code.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-By: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Brownell 2007-05-08 00:33:30 -07:00 • committed by Linus Torvalds
parent 5726fb2012
commit ab6a2d70d1
17 changed files with 119 additions and 118 deletions
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18
drivers/rtc/rtc-sysfs.c
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@ -12,6 +12,9 @@
#include <linux/module.h>
#include <linux/rtc.h>
#include "rtc-core.h"
/* device attributes */
static ssize_t rtc_sysfs_show_name(struct class_device *dev, char *buf)
@ -25,7 +28,7 @@ static ssize_t rtc_sysfs_show_date(struct class_device *dev, char *buf)
ssize_t retval;
struct rtc_time tm;
retval = rtc_read_time(dev, &tm);
retval = rtc_read_time(to_rtc_device(dev), &tm);
if (retval == 0) {
retval = sprintf(buf, "%04d-%02d-%02d\n",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
@ -40,7 +43,7 @@ static ssize_t rtc_sysfs_show_time(struct class_device *dev, char *buf)
ssize_t retval;
struct rtc_time tm;
retval = rtc_read_time(dev, &tm);
retval = rtc_read_time(to_rtc_device(dev), &tm);
if (retval == 0) {
retval = sprintf(buf, "%02d:%02d:%02d\n",
tm.tm_hour, tm.tm_min, tm.tm_sec);
@ -55,7 +58,7 @@ static ssize_t rtc_sysfs_show_since_epoch(struct class_device *dev, char *buf)
ssize_t retval;
struct rtc_time tm;
retval = rtc_read_time(dev, &tm);
retval = rtc_read_time(to_rtc_device(dev), &tm);
if (retval == 0) {
unsigned long time;
rtc_tm_to_time(&tm, &time);
@ -94,7 +97,7 @@ rtc_sysfs_show_wakealarm(struct class_device *dev, char *buf)
* REVISIT maybe we should require RTC implementations to
* disable the RTC alarm after it triggers, for uniformity.
*/
retval = rtc_read_alarm(dev, &alm);
retval = rtc_read_alarm(to_rtc_device(dev), &alm);
if (retval == 0 && alm.enabled) {
rtc_tm_to_time(&alm.time, &alarm);
retval = sprintf(buf, "%lu\n", alarm);
@ -109,11 +112,12 @@ rtc_sysfs_set_wakealarm(struct class_device *dev, const char *buf, size_t n)
ssize_t retval;
unsigned long now, alarm;
struct rtc_wkalrm alm;
struct rtc_device *rtc = to_rtc_device(dev);
/* Only request alarms that trigger in the future. Disable them
* by writing another time, e.g. 0 meaning Jan 1 1970 UTC.
*/
retval = rtc_read_time(dev, &alm.time);
retval = rtc_read_time(rtc, &alm.time);
if (retval < 0)
return retval;
rtc_tm_to_time(&alm.time, &now);
@ -124,7 +128,7 @@ rtc_sysfs_set_wakealarm(struct class_device *dev, const char *buf, size_t n)
* entirely prevent that here, without even the minimal
* locking from the /dev/rtcN api.
*/
retval = rtc_read_alarm(dev, &alm);
retval = rtc_read_alarm(rtc, &alm);
if (retval < 0)
return retval;
if (alm.enabled)
@ -141,7 +145,7 @@ rtc_sysfs_set_wakealarm(struct class_device *dev, const char *buf, size_t n)
}
rtc_time_to_tm(alarm, &alm.time);
retval = rtc_set_alarm(dev, &alm);
retval = rtc_set_alarm(rtc, &alm);
return (retval < 0) ? retval : n;
}
static const CLASS_DEVICE_ATTR(wakealarm, S_IRUGO | S_IWUSR,