cpufreq: Introduce cpufreq_driver_test_flags()

[sfrench/cifs-2.6.git] / include / linux / cpufreq.h

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index fa37b1c6644326467426335e27702c02cbbfe802..1eaa04f1bae634fe92485117aa4e596c011437c7 100644 (file)
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -298,7 +298,7 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
 
 struct cpufreq_driver {
        char            name[CPUFREQ_NAME_LEN];
-       u8              flags;
+       u16             flags;
        void            *driver_data;
 
        /* needed by all drivers */
@@ -422,9 +422,18 @@ struct cpufreq_driver {
  */
 #define CPUFREQ_IS_COOLING_DEV                 BIT(7)
 
+/*
+ * Set by drivers that need to update internale upper and lower boundaries along
+ * with the target frequency and so the core and governors should also invoke
+ * the diver if the target frequency does not change, but the policy min or max
+ * may have changed.
+ */
+#define CPUFREQ_NEED_UPDATE_LIMITS             BIT(8)
+
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
 
+bool cpufreq_driver_test_flags(u16 flags);
 const char *cpufreq_get_current_driver(void);
 void *cpufreq_get_driver_data(void);