ACPI: disable lower idle C-states across suspend/resume

[uclinux-h8/linux.git] / drivers / acpi / processor_idle.c

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index d9b8af7..f182613 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -325,6 +325,23 @@ static void acpi_state_timer_broadcast(struct acpi_processor *pr,
 
 #endif
 
+/*
+ * Suspend / resume control
+ */
+static int acpi_idle_suspend;
+
+int acpi_processor_suspend(struct acpi_device * device, pm_message_t state)
+{
+       acpi_idle_suspend = 1;
+       return 0;
+}
+
+int acpi_processor_resume(struct acpi_device * device)
+{
+       acpi_idle_suspend = 0;
+       return 0;
+}
+
 static void acpi_processor_idle(void)
 {
        struct acpi_processor *pr = NULL;
@@ -355,7 +372,7 @@ static void acpi_processor_idle(void)
        }
 
        cx = pr->power.state;
-       if (!cx) {
+       if (!cx || acpi_idle_suspend) {
                if (pm_idle_save)
                        pm_idle_save();
                else