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author | Joel Becker <joel.becker@oracle.com> | 2010-10-15 13:03:09 -0700 |
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committer | Joel Becker <joel.becker@oracle.com> | 2010-10-15 13:03:09 -0700 |
commit | fc3718918f13ad72827d62d36ea0f5fb55090644 (patch) | |
tree | 4f9551256e02d08be37bab137f3d94182a67504c /drivers/rtc/rtc-bfin.c | |
parent | 7bdb0d18bfd381cc5491eb95973ec5604b356c7e (diff) | |
parent | d4396eafe402b710a8535137b3bf2abe6c059a15 (diff) | |
download | op-kernel-dev-fc3718918f13ad72827d62d36ea0f5fb55090644.zip op-kernel-dev-fc3718918f13ad72827d62d36ea0f5fb55090644.tar.gz |
Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window
Conflicts:
fs/ocfs2/ocfs2.h
Diffstat (limited to 'drivers/rtc/rtc-bfin.c')
-rw-r--r-- | drivers/rtc/rtc-bfin.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c index 72b2bcc..d4fb82d 100644 --- a/drivers/rtc/rtc-bfin.c +++ b/drivers/rtc/rtc-bfin.c @@ -426,7 +426,7 @@ static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state) enable_irq_wake(IRQ_RTC); bfin_rtc_sync_pending(&pdev->dev); } else - bfin_rtc_int_clear(-1); + bfin_rtc_int_clear(0); return 0; } @@ -435,8 +435,17 @@ static int bfin_rtc_resume(struct platform_device *pdev) { if (device_may_wakeup(&pdev->dev)) disable_irq_wake(IRQ_RTC); - else - bfin_write_RTC_ISTAT(-1); + + /* + * Since only some of the RTC bits are maintained externally in the + * Vbat domain, we need to wait for the RTC MMRs to be synced into + * the core after waking up. This happens every RTC 1HZ. Once that + * has happened, we can go ahead and re-enable the important write + * complete interrupt event. + */ + while (!(bfin_read_RTC_ISTAT() & RTC_ISTAT_SEC)) + continue; + bfin_rtc_int_set(RTC_ISTAT_WRITE_COMPLETE); return 0; } |