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Commit 70275397 authored by Vikram Mulukutla's avatar Vikram Mulukutla
Browse files

clk: Separate OF clock code from COMMON_CLK 



Clock providers may wish to use the device tree
functionality of the clock framework without using
the COMMON_CLOCK framework. Unconditionally compile
drivers/clk/clk.c and #ifdef out the COMMON_CLK
related code.

Change-Id: I0ba03bbd57879ae17bedcb8c436e031834626673
Signed-off-by: default avatarVikram Mulukutla <markivx@codeaurora.org>
parent bfc96c5e

arch/arm/mach-msm/include/mach/clk-provider.h

+7 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/err.h>

#include <linux/list.h>

#include <linux/clkdev.h>

#include <linux/of.h>

#include <linux/spinlock.h>

#include <linux/mutex.h>

#include <linux/regulator/consumer.h>
@@ -226,4 +227,10 @@ static inline bool is_better_rate(unsigned long req, unsigned long best, 
	return (req <= new && new < best) || (best < req && best < new);

}



extern int of_clk_add_provider(struct device_node *np,

			struct clk *(*clk_src_get)(struct of_phandle_args *args,

						   void *data),

			void *data);

extern void of_clk_del_provider(struct device_node *np);



#endif

drivers/clk/Makefile

+1 −1
Original line number Diff line number Diff line 
# common clock types

obj-$(CONFIG_HAVE_CLK)		+= clk-devres.o

obj-$(CONFIG_CLKDEV_LOOKUP)	+= clkdev.o

obj-$(CONFIG_COMMON_CLK)	+= clk.o

obj-$(CONFIG_OF)		+= clk.o

obj-$(CONFIG_COMMON_CLK)	+= clk-divider.o

obj-$(CONFIG_COMMON_CLK)	+= clk-fixed-factor.o

obj-$(CONFIG_COMMON_CLK)	+= clk-fixed-rate.o

drivers/clk/clk.c

+13 −0
Original line number Diff line number Diff line
@@ -21,6 +21,8 @@ 
#include <linux/init.h>

#include <linux/sched.h>



#if defined(CONFIG_COMMON_CLK)



static DEFINE_SPINLOCK(enable_lock);

static DEFINE_MUTEX(prepare_lock);
@@ -1969,6 +1971,8 @@ int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb) 
}

EXPORT_SYMBOL_GPL(clk_notifier_unregister);



#endif /* CONFIG_COMMON_CLK */



#ifdef CONFIG_OF

/**

 * struct of_clk_provider - Clock provider registration structure
@@ -2001,6 +2005,8 @@ struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec, 
}

EXPORT_SYMBOL_GPL(of_clk_src_simple_get);



#if defined(CONFIG_COMMON_CLK)



struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data)

{

	struct clk_onecell_data *clk_data = data;
@@ -2015,6 +2021,8 @@ struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data) 
}

EXPORT_SYMBOL_GPL(of_clk_src_onecell_get);



#endif /* CONFIG_COMMON_CLK */



/**

 * of_clk_add_provider() - Register a clock provider for a node

 * @np: Device node pointer associated with clock provider
@@ -2108,6 +2116,8 @@ const char *of_clk_get_parent_name(struct device_node *np, int index) 
}

EXPORT_SYMBOL_GPL(of_clk_get_parent_name);



#if defined(CONFIG_COMMON_CLK)



/**

 * of_clk_init() - Scan and init clock providers from the DT

 * @matches: array of compatible values and init functions for providers.
@@ -2128,4 +2138,7 @@ void __init of_clk_init(const struct of_device_id *matches) 
		clk_init_cb(np);

	}

}



#endif /* CONFIG_COMMON_CLK */



#endif

drivers/clk/clkdev.c

+1 −1
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ 
static LIST_HEAD(clocks);

static DEFINE_MUTEX(clocks_mutex);



#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)

#if defined(CONFIG_OF)

struct clk *of_clk_get(struct device_node *np, int index)

{

	struct of_phandle_args clkspec;

include/linux/clk.h

+1 −1
Original line number Diff line number Diff line
@@ -364,7 +364,7 @@ int clk_add_alias(const char *alias, const char *alias_dev_name, char *id, 
struct device_node;

struct of_phandle_args;



#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)

#if defined(CONFIG_OF)

struct clk *of_clk_get(struct device_node *np, int index);

struct clk *of_clk_get_by_name(struct device_node *np, const char *name);

struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec);