diff options
| author | David Brownell <david-b@pacbell.net> | 2007-02-20 13:58:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-20 17:10:15 -0800 |
| commit | 5d4675a811fb71fd922109d7ebae3f987401ace1 (patch) | |
| tree | 8e03c86e64797963ef625ee9174147dfbc6bc24b | |
| parent | 32b49da46caa8067ea47eea8b7aee6559e452125 (diff) | |
[PATCH] at91_rtc updates
Various bug fixes to the at91rm9200 RTC:
- alarm: setalarm() should pay attention to the "enabled" flag
- init: cleaner handling of the wakeup flags, which cpu init should
really have set up. Doing it here is just a workaround.
- linkage: since the at91_rtc driver probe() routine is in the init
section, it should use platform_driver_probe() instead of leaving
that pointer around in the driver struct after init section removal.
- linkage: likewise, remove() belongs in the exit section.
Among other things, the init and alarm changes ensure that this driver
handles the new sysfs "wakealarm" attribute properly.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/rtc/rtc-at91rm9200.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index a724ab49a797..ac0e68e2f025 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -164,6 +164,7 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) tm.tm_min = alrm->time.tm_min; tm.tm_sec = alrm->time.tm_sec; + at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM); at91_sys_write(AT91_RTC_TIMALR, BIN2BCD(tm.tm_sec) << 0 | BIN2BCD(tm.tm_min) << 8 @@ -174,6 +175,9 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) | BIN2BCD(tm.tm_mday) << 24 | AT91_RTC_DATEEN | AT91_RTC_MTHEN); + if (alrm->enabled) + at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM); + pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, at91_alarm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec); @@ -303,6 +307,12 @@ static int __init at91_rtc_probe(struct platform_device *pdev) return ret; } + /* cpu init code should really have flagged this device as + * being wake-capable; if it didn't, do that here. + */ + if (!device_can_wakeup(&pdev->dev)) + device_init_wakeup(&pdev->dev, 1); + rtc = rtc_device_register(pdev->name, &pdev->dev, &at91_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { @@ -310,7 +320,6 @@ static int __init at91_rtc_probe(struct platform_device *pdev) return PTR_ERR(rtc); } platform_set_drvdata(pdev, rtc); - device_init_wakeup(&pdev->dev, 1); printk(KERN_INFO "AT91 Real Time Clock driver.\n"); return 0; @@ -319,7 +328,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev) /* * Disable and remove the RTC driver */ -static int __devexit at91_rtc_remove(struct platform_device *pdev) +static int __exit at91_rtc_remove(struct platform_device *pdev) { struct rtc_device *rtc = platform_get_drvdata(pdev); @@ -331,7 +340,6 @@ static int __devexit at91_rtc_remove(struct platform_device *pdev) rtc_device_unregister(rtc); platform_set_drvdata(pdev, NULL); - device_init_wakeup(&pdev->dev, 0); return 0; } @@ -404,8 +412,7 @@ static int at91_rtc_resume(struct platform_device *pdev) #endif static struct platform_driver at91_rtc_driver = { - .probe = at91_rtc_probe, - .remove = at91_rtc_remove, + .remove = __exit_p(at91_rtc_remove), .suspend = at91_rtc_suspend, .resume = at91_rtc_resume, .driver = { @@ -416,7 +423,7 @@ static struct platform_driver at91_rtc_driver = { static int __init at91_rtc_init(void) { - return platform_driver_register(&at91_rtc_driver); + return platform_driver_probe(&at91_rtc_driver, at91_rtc_probe); } static void __exit at91_rtc_exit(void) |