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-rw-r--r--include/linux/clk-provider.h103
1 files changed, 96 insertions, 7 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index bb6118f79784..2ae7604783dd 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -9,8 +9,6 @@
#include <linux/of.h>
#include <linux/of_clk.h>
-#ifdef CONFIG_COMMON_CLK
-
/*
* flags used across common struct clk. these flags should only affect the
* top-level framework. custom flags for dealing with hardware specifics
@@ -807,7 +805,14 @@ void devm_clk_hw_unregister(struct device *dev, struct clk_hw *hw);
/* helper functions */
const char *__clk_get_name(const struct clk *clk);
const char *clk_hw_get_name(const struct clk_hw *hw);
+#ifdef CONFIG_COMMON_CLK
struct clk_hw *__clk_get_hw(struct clk *clk);
+#else
+static inline struct clk_hw *__clk_get_hw(struct clk *clk)
+{
+ return (struct clk_hw *)clk;
+}
+#endif
unsigned int clk_hw_get_num_parents(const struct clk_hw *hw);
struct clk_hw *clk_hw_get_parent(const struct clk_hw *hw);
struct clk_hw *clk_hw_get_parent_by_index(const struct clk_hw *hw,
@@ -867,8 +872,6 @@ static inline long divider_ro_round_rate(struct clk_hw *hw, unsigned long rate,
*/
unsigned long clk_hw_round_rate(struct clk_hw *hw, unsigned long rate);
-struct of_device_id;
-
struct clk_onecell_data {
struct clk **clks;
unsigned int clk_num;
@@ -879,8 +882,6 @@ struct clk_hw_onecell_data {
struct clk_hw *hws[];
};
-extern struct of_device_id __clk_of_table;
-
#define CLK_OF_DECLARE(name, compat, fn) OF_DECLARE_1(clk, name, compat, fn)
/*
@@ -904,6 +905,40 @@ extern struct of_device_id __clk_of_table;
.ops = _ops, \
})
+#define CLK_HW_INIT_HW(_name, _parent, _ops, _flags) \
+ (&(struct clk_init_data) { \
+ .flags = _flags, \
+ .name = _name, \
+ .parent_hws = (const struct clk_hw*[]) { _parent }, \
+ .num_parents = 1, \
+ .ops = _ops, \
+ })
+
+/*
+ * This macro is intended for drivers to be able to share the otherwise
+ * individual struct clk_hw[] compound literals created by the compiler
+ * when using CLK_HW_INIT_HW. It does NOT support multiple parents.
+ */
+#define CLK_HW_INIT_HWS(_name, _parent, _ops, _flags) \
+ (&(struct clk_init_data) { \
+ .flags = _flags, \
+ .name = _name, \
+ .parent_hws = _parent, \
+ .num_parents = 1, \
+ .ops = _ops, \
+ })
+
+#define CLK_HW_INIT_FW_NAME(_name, _parent, _ops, _flags) \
+ (&(struct clk_init_data) { \
+ .flags = _flags, \
+ .name = _name, \
+ .parent_data = (const struct clk_parent_data[]) { \
+ { .fw_name = _parent }, \
+ }, \
+ .num_parents = 1, \
+ .ops = _ops, \
+ })
+
#define CLK_HW_INIT_PARENTS(_name, _parents, _ops, _flags) \
(&(struct clk_init_data) { \
.flags = _flags, \
@@ -913,6 +948,24 @@ extern struct of_device_id __clk_of_table;
.ops = _ops, \
})
+#define CLK_HW_INIT_PARENTS_HW(_name, _parents, _ops, _flags) \
+ (&(struct clk_init_data) { \
+ .flags = _flags, \
+ .name = _name, \
+ .parent_hws = _parents, \
+ .num_parents = ARRAY_SIZE(_parents), \
+ .ops = _ops, \
+ })
+
+#define CLK_HW_INIT_PARENTS_DATA(_name, _parents, _ops, _flags) \
+ (&(struct clk_init_data) { \
+ .flags = _flags, \
+ .name = _name, \
+ .parent_data = _parents, \
+ .num_parents = ARRAY_SIZE(_parents), \
+ .ops = _ops, \
+ })
+
#define CLK_HW_INIT_NO_PARENT(_name, _ops, _flags) \
(&(struct clk_init_data) { \
.flags = _flags, \
@@ -933,6 +986,43 @@ extern struct of_device_id __clk_of_table;
_flags), \
}
+#define CLK_FIXED_FACTOR_HW(_struct, _name, _parent, \
+ _div, _mult, _flags) \
+ struct clk_fixed_factor _struct = { \
+ .div = _div, \
+ .mult = _mult, \
+ .hw.init = CLK_HW_INIT_HW(_name, \
+ _parent, \
+ &clk_fixed_factor_ops, \
+ _flags), \
+ }
+
+/*
+ * This macro allows the driver to reuse the _parent array for multiple
+ * fixed factor clk declarations.
+ */
+#define CLK_FIXED_FACTOR_HWS(_struct, _name, _parent, \
+ _div, _mult, _flags) \
+ struct clk_fixed_factor _struct = { \
+ .div = _div, \
+ .mult = _mult, \
+ .hw.init = CLK_HW_INIT_HWS(_name, \
+ _parent, \
+ &clk_fixed_factor_ops, \
+ _flags), \
+ }
+
+#define CLK_FIXED_FACTOR_FW_NAME(_struct, _name, _parent, \
+ _div, _mult, _flags) \
+ struct clk_fixed_factor _struct = { \
+ .div = _div, \
+ .mult = _mult, \
+ .hw.init = CLK_HW_INIT_FW_NAME(_name, \
+ _parent, \
+ &clk_fixed_factor_ops, \
+ _flags), \
+ }
+
#ifdef CONFIG_OF
int of_clk_add_provider(struct device_node *np,
struct clk *(*clk_src_get)(struct of_phandle_args *args,
@@ -1019,5 +1109,4 @@ static inline int of_clk_detect_critical(struct device_node *np, int index,
void clk_gate_restore_context(struct clk_hw *hw);
-#endif /* CONFIG_COMMON_CLK */
#endif /* CLK_PROVIDER_H */