diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-27 01:28:38 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-27 01:28:38 +0200 |
| commit | 4b319f290d3b9c756228a66f72095d0039ec1b50 (patch) | |
| tree | 2cda8d4ac3d1f2d9732a2b16feb15b14f91c83f7 /drivers/acpi | |
| parent | 0ad4c9a9848fdd46dc422160efd947489a98bbc1 (diff) | |
| parent | 01c6a6afd50f07dfd66b2891fd194c4b789fca48 (diff) | |
Merge branch 'acpi-sleep'
* acpi-sleep:
x86 / tboot / ACPI: Fail extended mode reduced hardware sleep
xen / ACPI: notify xen when reduced hardware sleep is available
ACPI / sleep: Introduce acpi_os_prepare_extended_sleep() for extended sleep path
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/hwesleep.c | 9 | ||||
| -rw-r--r-- | drivers/acpi/osl.c | 24 |
2 files changed, 33 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c index 5e5f76230f5..414076818d4 100644 --- a/drivers/acpi/acpica/hwesleep.c +++ b/drivers/acpi/acpica/hwesleep.c @@ -43,6 +43,7 @@ */ #include <acpi/acpi.h> +#include <linux/acpi.h> #include "accommon.h" #define _COMPONENT ACPI_HARDWARE @@ -128,6 +129,14 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); + status = acpi_os_prepare_extended_sleep(sleep_state, + acpi_gbl_sleep_type_a, + acpi_gbl_sleep_type_b); + if (ACPI_SKIP(status)) + return_ACPI_STATUS(AE_OK); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); + /* * Set the SLP_TYP and SLP_EN bits. * diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 6ab2c350552..a934950ff7a 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -79,6 +79,8 @@ extern char line_buf[80]; static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl, u32 pm1b_ctrl); +static int (*__acpi_os_prepare_extended_sleep)(u8 sleep_state, u32 val_a, + u32 val_b); static acpi_osd_handler acpi_irq_handler; static void *acpi_irq_context; @@ -1779,6 +1781,28 @@ void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, __acpi_os_prepare_sleep = func; } +acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, u32 val_a, + u32 val_b) +{ + int rc = 0; + if (__acpi_os_prepare_extended_sleep) + rc = __acpi_os_prepare_extended_sleep(sleep_state, + val_a, val_b); + if (rc < 0) + return AE_ERROR; + else if (rc > 0) + return AE_CTRL_SKIP; + + return AE_OK; +} + +void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, + u32 val_a, u32 val_b)) +{ + __acpi_os_prepare_extended_sleep = func; +} + + void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context, void (*func)(struct work_struct *work)) { |