1 files changed, 50 insertions, 1 deletions

diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 7f197d7addb0..1f0352802794 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -45,6 +45,14 @@ struct clk_hw;
  * 		undo any work done in the @prepare callback. Called with
  * 		prepare_lock held.
  *
+ * @is_prepared: Queries the hardware to determine if the clock is prepared.
+ *		This function is allowed to sleep. Optional, if this op is not
+ *		set then the prepare count will be used.
+ *
+ * @unprepare_unused: Unprepare the clock atomically.  Only called from
+ *		clk_disable_unused for prepare clocks with special needs.
+ *		Called with prepare mutex held. This function may sleep.
+ *
  * @enable:	Enable the clock atomically. This must not return until the
  * 		clock is generating a valid clock signal, usable by consumer
  * 		devices. Called with enable_lock held. This function must not
@@ -108,6 +116,8 @@ struct clk_hw;
 struct clk_ops {
 	int		(*prepare)(struct clk_hw *hw);
 	void		(*unprepare)(struct clk_hw *hw);
+	int		(*is_prepared)(struct clk_hw *hw);
+	void		(*unprepare_unused)(struct clk_hw *hw);
 	int		(*enable)(struct clk_hw *hw);
 	void		(*disable)(struct clk_hw *hw);
 	int		(*is_enabled)(struct clk_hw *hw);
@@ -287,8 +297,9 @@ struct clk *clk_register_divider_table(struct device *dev, const char *name,
 struct clk_mux {
 	struct clk_hw	hw;
 	void __iomem	*reg;
+	u32		*table;
+	u32		mask;
 	u8		shift;
-	u8		width;
 	u8		flags;
 	spinlock_t	*lock;
 };
@@ -297,11 +308,17 @@ struct clk_mux {
 #define CLK_MUX_INDEX_BIT		BIT(1)
 
 extern const struct clk_ops clk_mux_ops;
+
 struct clk *clk_register_mux(struct device *dev, const char *name,
 		const char **parent_names, u8 num_parents, unsigned long flags,
 		void __iomem *reg, u8 shift, u8 width,
 		u8 clk_mux_flags, spinlock_t *lock);
 
+struct clk *clk_register_mux_table(struct device *dev, const char *name,
+		const char **parent_names, u8 num_parents, unsigned long flags,
+		void __iomem *reg, u8 shift, u32 mask,
+		u8 clk_mux_flags, u32 *table, spinlock_t *lock);
+
 /**
  * struct clk_fixed_factor - fixed multiplier and divider clock
  *
@@ -325,6 +342,37 @@ struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
 		const char *parent_name, unsigned long flags,
 		unsigned int mult, unsigned int div);
 
+/***
+ * struct clk_composite - aggregate clock of mux, divider and gate clocks
+ *
+ * @hw:		handle between common and hardware-specific interfaces
+ * @mux_hw:	handle between composite and hardware-specifix mux clock
+ * @div_hw:	handle between composite and hardware-specifix divider clock
+ * @gate_hw:	handle between composite and hardware-specifix gate clock
+ * @mux_ops:	clock ops for mux
+ * @div_ops:	clock ops for divider
+ * @gate_ops:	clock ops for gate
+ */
+struct clk_composite {
+	struct clk_hw	hw;
+	struct clk_ops	ops;
+
+	struct clk_hw	*mux_hw;
+	struct clk_hw	*div_hw;
+	struct clk_hw	*gate_hw;
+
+	const struct clk_ops	*mux_ops;
+	const struct clk_ops	*div_ops;
+	const struct clk_ops	*gate_ops;
+};
+
+struct clk *clk_register_composite(struct device *dev, const char *name,
+		const char **parent_names, int num_parents,
+		struct clk_hw *mux_hw, const struct clk_ops *mux_ops,
+		struct clk_hw *div_hw, const struct clk_ops *div_ops,
+		struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
+		unsigned long flags);
+
 /**
  * clk_register - allocate a new clock, register it and return an opaque cookie
  * @dev: device that is registering this clock
@@ -351,6 +399,7 @@ 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);
+bool __clk_is_prepared(struct clk *clk);
 bool __clk_is_enabled(struct clk *clk);
 struct clk *__clk_lookup(const char *name);