---

yaml
---
r: 308212
b: refs/heads/master
c: 0197b3e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e447c50e3af5dcad3075c80bd1bdc4e2024b8186
+refs/heads/master: 0197b3ea0f66cd2a11417f58fe1812858ea77908

trunk/drivers/clk/clk-divider.c

@@ -167,6 +167,7 @@ struct clk *clk_register_divider(struct device *dev, const char *name,
 {
 	struct clk_divider *div;
 	struct clk *clk;
+	struct clk_init_data init;
 
 	/* allocate the divider */
 	div = kzalloc(sizeof(struct clk_divider), GFP_KERNEL);
@@ -175,19 +176,22 @@ struct clk *clk_register_divider(struct device *dev, const char *name,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	init.name = name;
+	init.ops = &clk_divider_ops;
+	init.flags = flags;
+	init.parent_names = (parent_name ? &parent_name: NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
 	/* struct clk_divider assignments */
 	div->reg = reg;
 	div->shift = shift;
 	div->width = width;
 	div->flags = clk_divider_flags;
 	div->lock = lock;
+	div->hw.init = &init;
 
 	/* register the clock */
-	clk = clk_register(dev, name,
-			&clk_divider_ops, &div->hw,
-			(parent_name ? &parent_name: NULL),
-			(parent_name ? 1 : 0),
-			flags);
+	clk = clk_register(dev, &div->hw);
 
 	if (IS_ERR(clk))
 		kfree(div);

trunk/drivers/clk/clk-fixed-rate.c

@@ -52,6 +52,7 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
 {
 	struct clk_fixed_rate *fixed;
 	struct clk *clk;
+	struct clk_init_data init;
 
 	/* allocate fixed-rate clock */
 	fixed = kzalloc(sizeof(struct clk_fixed_rate), GFP_KERNEL);
@@ -60,15 +61,18 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	init.name = name;
+	init.ops = &clk_fixed_rate_ops;
+	init.flags = flags;
+	init.parent_names = (parent_name ? &parent_name: NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
 	/* struct clk_fixed_rate assignments */
 	fixed->fixed_rate = fixed_rate;
+	fixed->hw.init = &init;
 
 	/* register the clock */
-	clk = clk_register(dev, name,
-			&clk_fixed_rate_ops, &fixed->hw,
-			(parent_name ? &parent_name : NULL),
-			(parent_name ? 1 : 0),
-			flags);
+	clk = clk_register(dev, &fixed->hw);
 
 	if (IS_ERR(clk))
 		kfree(fixed);

trunk/drivers/clk/clk-gate.c

@@ -119,6 +119,7 @@ struct clk *clk_register_gate(struct device *dev, const char *name,
 {
 	struct clk_gate *gate;
 	struct clk *clk;
+	struct clk_init_data init;
 
 	/* allocate the gate */
 	gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
@@ -127,18 +128,20 @@ struct clk *clk_register_gate(struct device *dev, const char *name,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	init.name = name;
+	init.ops = &clk_gate_ops;
+	init.flags = flags;
+	init.parent_names = (parent_name ? &parent_name: NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
 	/* struct clk_gate assignments */
 	gate->reg = reg;
 	gate->bit_idx = bit_idx;
 	gate->flags = clk_gate_flags;
 	gate->lock = lock;
+	gate->hw.init = &init;
 
-	/* register the clock */
-	clk = clk_register(dev, name,
-			&clk_gate_ops, &gate->hw,
-			(parent_name ? &parent_name : NULL),
-			(parent_name ? 1 : 0),
-			flags);
+	clk = clk_register(dev, &gate->hw);
 
 	if (IS_ERR(clk))
 		kfree(gate);

trunk/drivers/clk/clk-mux.c

@@ -95,6 +95,7 @@ struct clk *clk_register_mux(struct device *dev, const char *name,
 {
 	struct clk_mux *mux;
 	struct clk *clk;
+	struct clk_init_data init;
 
 	/* allocate the mux */
 	mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL);
@@ -103,15 +104,20 @@ struct clk *clk_register_mux(struct device *dev, const char *name,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	init.name = name;
+	init.ops = &clk_mux_ops;
+	init.flags = flags;
+	init.parent_names = parent_names;
+	init.num_parents = num_parents;
+
 	/* struct clk_mux assignments */
 	mux->reg = reg;
 	mux->shift = shift;
 	mux->width = width;
 	mux->flags = clk_mux_flags;
 	mux->lock = lock;
 
-	clk = clk_register(dev, name, &clk_mux_ops, &mux->hw,
-			parent_names, num_parents, flags);
+	clk = clk_register(dev, &mux->hw);
 
 	if (IS_ERR(clk))
 		kfree(mux);

trunk/drivers/clk/clk.c

@@ -1169,26 +1169,6 @@ EXPORT_SYMBOL_GPL(clk_set_parent);
  *
  * Initializes the lists in struct clk, queries the hardware for the
  * parent and rate and sets them both.
- *
- * Any struct clk passed into __clk_init must have the following members
- * populated:
- * 	.name
- * 	.ops
- * 	.hw
- * 	.parent_names
- * 	.num_parents
- * 	.flags
- *
- * Essentially, everything that would normally be passed into clk_register is
- * assumed to be initialized already in __clk_init.  The other members may be
- * populated, but are optional.
- *
- * __clk_init is only exposed via clk-private.h and is intended for use with
- * very large numbers of clocks that need to be statically initialized.  It is
- * a layering violation to include clk-private.h from any code which implements
- * a clock's .ops; as such any statically initialized clock data MUST be in a
- * separate C file from the logic that implements it's operations.  Returns 0
- * on success, otherwise an error code.
  */
 int __clk_init(struct device *dev, struct clk *clk)
 {
@@ -1320,25 +1300,56 @@ int __clk_init(struct device *dev, struct clk *clk)
 	return ret;
 }
 
+/**
+ * __clk_register - register a clock and return a cookie.
+ *
+ * Same as clk_register, except that the .clk field inside hw shall point to a
+ * preallocated (generally statically allocated) struct clk. None of the fields
+ * of the struct clk need to be initialized.
+ *
+ * The data pointed to by .init and .clk field shall NOT be marked as init
+ * data.
+ *
+ * __clk_register is only exposed via clk-private.h and is intended for use with
+ * very large numbers of clocks that need to be statically initialized.  It is
+ * a layering violation to include clk-private.h from any code which implements
+ * a clock's .ops; as such any statically initialized clock data MUST be in a
+ * separate C file from the logic that implements it's operations.  Returns 0
+ * on success, otherwise an error code.
+ */
+struct clk *__clk_register(struct device *dev, struct clk_hw *hw)
+{
+	int ret;
+	struct clk *clk;
+
+	clk = hw->clk;
+	clk->name = hw->init->name;
+	clk->ops = hw->init->ops;
+	clk->hw = hw;
+	clk->flags = hw->init->flags;
+	clk->parent_names = hw->init->parent_names;
+	clk->num_parents = hw->init->num_parents;
+
+	ret = __clk_init(dev, clk);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return clk;
+}
+EXPORT_SYMBOL_GPL(__clk_register);
+
 /**
  * clk_register - allocate a new clock, register it and return an opaque cookie
  * @dev: device that is registering this clock
- * @name: clock name
- * @ops: operations this clock supports
  * @hw: link to hardware-specific clock data
- * @parent_names: array of string names for all possible parents
- * @num_parents: number of possible parents
- * @flags: framework-level hints and quirks
  *
  * clk_register is the primary interface for populating the clock tree with new
  * clock nodes.  It returns a pointer to the newly allocated struct clk which
  * cannot be dereferenced by driver code but may be used in conjuction with the
  * rest of the clock API.  In the event of an error clk_register will return an
  * error code; drivers must test for an error code after calling clk_register.
  */
-struct clk *clk_register(struct device *dev, const char *name,
-		const struct clk_ops *ops, struct clk_hw *hw,
-		const char **parent_names, u8 num_parents, unsigned long flags)
+struct clk *clk_register(struct device *dev, struct clk_hw *hw)
 {
 	int i, ret;
 	struct clk *clk;
@@ -1350,15 +1361,20 @@ struct clk *clk_register(struct device *dev, const char *name,
 		goto fail_out;
 	}
 
-	clk->name = name;
-	clk->ops = ops;
+	clk->name = kstrdup(hw->init->name, GFP_KERNEL);
+	if (!clk->name) {
+		pr_err("%s: could not allocate clk->name\n", __func__);
+		ret = -ENOMEM;
+		goto fail_name;
+	}
+	clk->ops = hw->init->ops;
 	clk->hw = hw;
-	clk->flags = flags;
-	clk->num_parents = num_parents;
+	clk->flags = hw->init->flags;
+	clk->num_parents = hw->init->num_parents;
 	hw->clk = clk;
 
 	/* allocate local copy in case parent_names is __initdata */
-	clk->parent_names = kzalloc((sizeof(char*) * num_parents),
+	clk->parent_names = kzalloc((sizeof(char*) * clk->num_parents),
 			GFP_KERNEL);
 
 	if (!clk->parent_names) {
@@ -1369,8 +1385,9 @@ struct clk *clk_register(struct device *dev, const char *name,
 
 
 	/* copy each string name in case parent_names is __initdata */
-	for (i = 0; i < num_parents; i++) {
-		clk->parent_names[i] = kstrdup(parent_names[i], GFP_KERNEL);
+	for (i = 0; i < clk->num_parents; i++) {
+		clk->parent_names[i] = kstrdup(hw->init->parent_names[i],
+						GFP_KERNEL);
 		if (!clk->parent_names[i]) {
 			pr_err("%s: could not copy parent_names\n", __func__);
 			ret = -ENOMEM;
@@ -1387,6 +1404,8 @@ struct clk *clk_register(struct device *dev, const char *name,
 		kfree(clk->parent_names[i]);
 	kfree(clk->parent_names);
 fail_parent_names:
+	kfree(clk->name);
+fail_name:
 	kfree(clk);
 fail_out:
 	return ERR_PTR(ret);

trunk/include/linux/clk-private.h

@@ -167,5 +167,7 @@ struct clk {
  */
 int __clk_init(struct device *dev, struct clk *clk);
 
+struct clk *__clk_register(struct device *dev, struct clk_hw *hw);
+
 #endif /* CONFIG_COMMON_CLK */
 #endif /* CLK_PRIVATE_H */

trunk/include/linux/clk-provider.h

@@ -15,19 +15,6 @@
 
 #ifdef CONFIG_COMMON_CLK
 
-/**
- * struct clk_hw - handle for traversing from a struct clk to its corresponding
- * hardware-specific structure.  struct clk_hw should be declared within struct
- * clk_foo and then referenced by the struct clk instance that uses struct
- * clk_foo's clk_ops
- *
- * clk: pointer to the struct clk instance that points back to this struct
- * clk_hw instance
- */
-struct clk_hw {
-	struct clk *clk;
-};
-
 /*
  * flags used across common struct clk.  these flags should only affect the
  * top-level framework.  custom flags for dealing with hardware specifics
@@ -39,6 +26,8 @@ struct clk_hw {
 #define CLK_IGNORE_UNUSED	BIT(3) /* do not gate even if unused */
 #define CLK_IS_ROOT		BIT(4) /* root clk, has no parent */
 
+struct clk_hw;
+
 /**
  * struct clk_ops -  Callback operations for hardware clocks; these are to
  * be provided by the clock implementation, and will be called by drivers
@@ -122,6 +111,41 @@ struct clk_ops {
 	void		(*init)(struct clk_hw *hw);
 };
 
+/**
+ * struct clk_init_data - holds init data that's common to all clocks and is
+ * shared between the clock provider and the common clock framework.
+ *
+ * @name: clock name
+ * @ops: operations this clock supports
+ * @parent_names: array of string names for all possible parents
+ * @num_parents: number of possible parents
+ * @flags: framework-level hints and quirks
+ */
+struct clk_init_data {
+	const char		*name;
+	const struct clk_ops	*ops;
+	const char		**parent_names;
+	u8			num_parents;
+	unsigned long		flags;
+};
+
+/**
+ * struct clk_hw - handle for traversing from a struct clk to its corresponding
+ * hardware-specific structure.  struct clk_hw should be declared within struct
+ * clk_foo and then referenced by the struct clk instance that uses struct
+ * clk_foo's clk_ops
+ *
+ * @clk: pointer to the struct clk instance that points back to this struct
+ * clk_hw instance
+ *
+ * @init: pointer to struct clk_init_data that contains the init data shared
+ * with the common clock framework.
+ */
+struct clk_hw {
+	struct clk *clk;
+	struct clk_init_data *init;
+};
+
 /*
  * DOC: Basic clock implementations common to many platforms
  *
@@ -255,22 +279,15 @@ struct clk *clk_register_mux(struct device *dev, const char *name,
 /**
  * clk_register - allocate a new clock, register it and return an opaque cookie
  * @dev: device that is registering this clock
- * @name: clock name
- * @ops: operations this clock supports
  * @hw: link to hardware-specific clock data
- * @parent_names: array of string names for all possible parents
- * @num_parents: number of possible parents
- * @flags: framework-level hints and quirks
  *
  * clk_register is the primary interface for populating the clock tree with new
  * clock nodes.  It returns a pointer to the newly allocated struct clk which
  * cannot be dereferenced by driver code but may be used in conjuction with the
  * rest of the clock API.  In the event of an error clk_register will return an
  * error code; drivers must test for an error code after calling clk_register.
  */
-struct clk *clk_register(struct device *dev, const char *name,
-		const struct clk_ops *ops, struct clk_hw *hw,
-		const char **parent_names, u8 num_parents, unsigned long flags);
+struct clk *clk_register(struct device *dev, struct clk_hw *hw);
 
 /* helper functions */
 const char *__clk_get_name(struct clk *clk);