ACPI / sleep: Introduce acpi_os_prepare_extended_sleep() for extended sleep path

[karo-tx-linux.git] / drivers / acpi / osl.c

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 6ab2c350552061893ded7355d376406de5d98ed8..a934950ff7a058d624a335714eeb4794198997b5 100644 (file)
--- 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))
 {