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-rw-r--r--drivers/clocksource/acpi_pm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 279ddff81ab4..82338773602c 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -23,6 +23,7 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <asm/io.h>
+#include <asm/time.h>
/*
* The I/O port the PMTMR resides at.
@@ -210,8 +211,9 @@ static int __init init_acpi_pm_clocksource(void)
return -ENODEV;
}
- return clocksource_register_hz(&clocksource_acpi_pm,
- PMTMR_TICKS_PER_SEC);
+ if (tsc_clocksource_watchdog_disabled())
+ clocksource_acpi_pm.flags |= CLOCK_SOURCE_MUST_VERIFY;
+ return clocksource_register_hz(&clocksource_acpi_pm, PMTMR_TICKS_PER_SEC);
}
/* We use fs_initcall because we want the PCI fixups to have run