diff options
author | Ingo Molnar <mingo@elte.hu> | 2012-01-04 15:00:43 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2012-01-04 15:01:28 +0100 |
commit | adaf4ed2abbd285c93808060924eeec3af483aee (patch) | |
tree | 425c6c37c08af0b69efaa7457c9b428eda347c36 /arch/x86/kernel/hpet.c | |
parent | ca3d30cc02f780f68771087040ce935add6ba2b7 (diff) | |
parent | 5f0a6e2d503896062f641639dacfe5055c2f593b (diff) |
Merge commit 'v3.2-rc7' into x86/asm
Merge reason: Update from -rc4 to -rc7.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/hpet.c')
-rw-r--r-- | arch/x86/kernel/hpet.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index b946a9eac7d..1bb0bf4d92c 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -1049,6 +1049,14 @@ int hpet_rtc_timer_init(void) } EXPORT_SYMBOL_GPL(hpet_rtc_timer_init); +static void hpet_disable_rtc_channel(void) +{ + unsigned long cfg; + cfg = hpet_readl(HPET_T1_CFG); + cfg &= ~HPET_TN_ENABLE; + hpet_writel(cfg, HPET_T1_CFG); +} + /* * The functions below are called from rtc driver. * Return 0 if HPET is not being used. @@ -1060,6 +1068,9 @@ int hpet_mask_rtc_irq_bit(unsigned long bit_mask) return 0; hpet_rtc_flags &= ~bit_mask; + if (unlikely(!hpet_rtc_flags)) + hpet_disable_rtc_channel(); + return 1; } EXPORT_SYMBOL_GPL(hpet_mask_rtc_irq_bit); @@ -1125,15 +1136,11 @@ EXPORT_SYMBOL_GPL(hpet_rtc_dropped_irq); static void hpet_rtc_timer_reinit(void) { - unsigned int cfg, delta; + unsigned int delta; int lost_ints = -1; - if (unlikely(!hpet_rtc_flags)) { - cfg = hpet_readl(HPET_T1_CFG); - cfg &= ~HPET_TN_ENABLE; - hpet_writel(cfg, HPET_T1_CFG); - return; - } + if (unlikely(!hpet_rtc_flags)) + hpet_disable_rtc_channel(); if (!(hpet_rtc_flags & RTC_PIE) || hpet_pie_limit) delta = hpet_default_delta; |