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-rw-r--r--tools/power/acpi/os_specific/service_layers/osunixxf.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/power/acpi/os_specific/service_layers/osunixxf.c b/tools/power/acpi/os_specific/service_layers/osunixxf.c
index 10648aaf6164..e41c2644c347 100644
--- a/tools/power/acpi/os_specific/service_layers/osunixxf.c
+++ b/tools/power/acpi/os_specific/service_layers/osunixxf.c
@@ -318,6 +318,28 @@ acpi_os_physical_table_override(struct acpi_table_header *existing_table,
/******************************************************************************
*
+ * FUNCTION: acpi_os_enter_sleep
+ *
+ * PARAMETERS: sleep_state - Which sleep state to enter
+ * rega_value - Register A value
+ * regb_value - Register B value
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: A hook before writing sleep registers to enter the sleep
+ * state. Return AE_CTRL_TERMINATE to skip further sleep register
+ * writes.
+ *
+ *****************************************************************************/
+
+acpi_status acpi_os_enter_sleep(u8 sleep_state, u32 rega_value, u32 regb_value)
+{
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
* FUNCTION: acpi_os_redirect_output
*
* PARAMETERS: destination - An open file handle/pointer