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-rw-r--r--include/linux/clk-provider.h24
1 files changed, 18 insertions, 6 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index f9f5e9eeb9d..4989b8a7bed 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -53,9 +53,18 @@ struct clk_hw;
* @disable: Disable the clock atomically. Called with enable_lock held.
* This function must not sleep.
*
- * @recalc_rate Recalculate the rate of this clock, by quering hardware. The
+ * @is_enabled: Queries the hardware to determine if the clock is enabled.
+ * This function must not sleep. Optional, if this op is not
+ * set then the enable count will be used.
+ *
+ * @disable_unused: Disable the clock atomically. Only called from
+ * clk_disable_unused for gate clocks with special needs.
+ * Called with enable_lock held. This function must not
+ * sleep.
+ *
+ * @recalc_rate Recalculate the rate of this clock, by querying hardware. The
* parent rate is an input parameter. It is up to the caller to
- * insure that the prepare_mutex is held across this call.
+ * ensure that the prepare_mutex is held across this call.
* Returns the calculated rate. Optional, but recommended - if
* this op is not set then clock rate will be initialized to 0.
*
@@ -89,7 +98,7 @@ struct clk_hw;
* implementations to split any work between atomic (enable) and sleepable
* (prepare) contexts. If enabling a clock requires code that might sleep,
* this must be done in clk_prepare. Clock enable code that will never be
- * called in a sleepable context may be implement in clk_enable.
+ * called in a sleepable context may be implemented in clk_enable.
*
* Typically, drivers will call clk_prepare when a clock may be needed later
* (eg. when a device is opened), and clk_enable when the clock is actually
@@ -102,6 +111,7 @@ struct clk_ops {
int (*enable)(struct clk_hw *hw);
void (*disable)(struct clk_hw *hw);
int (*is_enabled)(struct clk_hw *hw);
+ void (*disable_unused)(struct clk_hw *hw);
unsigned long (*recalc_rate)(struct clk_hw *hw,
unsigned long parent_rate);
long (*round_rate)(struct clk_hw *hw, unsigned long,
@@ -327,19 +337,21 @@ struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
* error code; drivers must test for an error code after calling clk_register.
*/
struct clk *clk_register(struct device *dev, struct clk_hw *hw);
+struct clk *devm_clk_register(struct device *dev, struct clk_hw *hw);
void clk_unregister(struct clk *clk);
+void devm_clk_unregister(struct device *dev, struct clk *clk);
/* helper functions */
const char *__clk_get_name(struct clk *clk);
struct clk_hw *__clk_get_hw(struct clk *clk);
u8 __clk_get_num_parents(struct clk *clk);
struct clk *__clk_get_parent(struct clk *clk);
-int __clk_get_enable_count(struct clk *clk);
-int __clk_get_prepare_count(struct clk *clk);
+unsigned int __clk_get_enable_count(struct clk *clk);
+unsigned int __clk_get_prepare_count(struct clk *clk);
unsigned long __clk_get_rate(struct clk *clk);
unsigned long __clk_get_flags(struct clk *clk);
-int __clk_is_enabled(struct clk *clk);
+bool __clk_is_enabled(struct clk *clk);
struct clk *__clk_lookup(const char *name);
/*