diff options
| author | Tang Liang <liang.tang@oracle.com> | 2011-12-09 10:05:54 +0800 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-03-13 14:06:33 -0400 |
| commit | 09f98a825a821f7a3f1b162f9ed023f37213a63b (patch) | |
| tree | 37d83899ccac13fe6aa6069aecef8dd8e86d5d2a /drivers/acpi/acpica | |
| parent | 805a6af8dba5dfdd35ec35dc52ec0122400b2610 (diff) | |
x86, acpi, tboot: Have a ACPI os prepare sleep instead of calling tboot_sleep.
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 <len.brown@intel.com>
Acked-by: Joseph Cihula <joseph.cihula@intel.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
[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 <liang.tang@oracle.com>
[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 <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/acpi/acpica')
| -rw-r--r-- | drivers/acpi/acpica/hwsleep.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index d52da3073650..992359af7e2f 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -43,9 +43,9 @@ */ #include <acpi/acpi.h> +#include <linux/acpi.h> #include "accommon.h" #include "actables.h" -#include <linux/tboot.h> #include <linux/module.h> #define _COMPONENT ACPI_HARDWARE @@ -344,8 +344,12 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); - tboot_sleep(sleep_state, pm1a_control, pm1b_control); - + status = acpi_os_prepare_sleep(sleep_state, pm1a_control, + pm1b_control); + if (ACPI_SKIP(status)) + return_ACPI_STATUS(AE_OK); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); /* Write #2: Write both SLP_TYP + SLP_EN */ status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control); |