From: Colin Ian King <[email protected]> commit 573b638158029898caf9470c8214b7ddd29751e3 upstream.
Section 4.7.3.1.1 (PM1 Status Registers) of version 4.0 of the ACPI spec concerning PCIEXP_WAKE_STS points out in in the final note field in table 4-11 that if this bit is set to 1 and the system is put into a sleeping state then the system will not automatically wake. This bit gets set by hardware to indicate that the system woke up due to a PCI Express wakeup event, so clear it during acpi_hw_clear_acpi_status() calls to enable subsequent resumes to work. BugLink: http://bugs.launchpad.net/bugs/613381 Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Len Brown <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> --- drivers/acpi/acpica/aclocal.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 24b8faa..3a739ba 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -848,6 +848,7 @@ struct acpi_bit_register_info { ACPI_BITMASK_POWER_BUTTON_STATUS | \ ACPI_BITMASK_SLEEP_BUTTON_STATUS | \ ACPI_BITMASK_RT_CLOCK_STATUS | \ + ACPI_BITMASK_PCIEXP_WAKE_DISABLE | \ ACPI_BITMASK_WAKE_STATUS) #define ACPI_BITMASK_TIMER_ENABLE 0x0001 -- 1.7.3.3 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
