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x86, acpi, tboot: Have a ACPI os prepare sleep instead of calling tboot_sleep.

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The ACPI suspend path makes a call to tboot_sleep right before
it writes the PM1A, PM1B values. We replace the direct call to
tboot via an registration callback similar to __acpi_register_gsi.

CC: Len Brown <[email protected]>
Acked-by: Joseph Cihula <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
[v1: Added __attribute__ ((unused))]
[v2: Introduced a wrapper instead of changing tboot_sleep return values]
[v3: Added return value AE_CTRL_SKIP for acpi_os_sleep_prepare]
Signed-off-by: Tang Liang <[email protected]>
[v1: Fix compile issues on IA64 and PPC64]
[v2: Fix where __acpi_os_prepare_sleep==NULL and did not go in sleep properly]
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
This commit is contained in:
Tang Liang 2011-12-09 10:05:54 +08:00 • committed by Konrad Rzeszutek Wilk
commit 09f98a825a
6 changed files with 50 additions and 4 deletions
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1
include/acpi/acexcep.h
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@ -57,6 +57,7 @@
#define ACPI_SUCCESS(a) (!(a))
#define ACPI_FAILURE(a) (a)
#define ACPI_SKIP(a) (a == AE_CTRL_SKIP)
#define AE_OK (acpi_status) 0x0000
/*