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clk: Replace of_clk_get_by_clkspec() with of_clk_get_from_provider() 

of_clk_get_by_clkspec() has the same function signature as
of_clk_get_from_provider()

 struct clk *of_clk_get_by_clkspec(struct of_phandle_args
 *clkspec)
 struct clk *of_clk_get_from_provider(struct of_phandle_args
 *clkspec)

except of_clk_get_by_clkspec() checks to make sure clkspec is not
NULL. Let's remove of_clk_get_by_clkspec() and replace the
callers of it (clkconf.c) with of_clk_get_from_provider().

Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Stephen Boyd 2015-02-05 15:39:11 -08:00
parent 50595f8b9e
commit 306c342f9c
4 changed files with 18 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/clk/clk-conf.c
View File

@ -13,7 +13,6 @@
#include <linux/device.h>
#include <linux/of.h>
#include <linux/printk.h>
#include "clk.h"
static int __set_clk_parents(struct device_node *node, bool clk_supplier)
{
@ -39,7 +38,7 @@ static int __set_clk_parents(struct device_node *node, bool clk_supplier)
}
if (clkspec.np == node && !clk_supplier)
return 0;
pclk = of_clk_get_by_clkspec(&clkspec);
pclk = of_clk_get_from_provider(&clkspec);
if (IS_ERR(pclk)) {
pr_warn("clk: couldn't get parent clock %d for %s\n",
index, node->full_name);
@ -54,7 +53,7 @@ static int __set_clk_parents(struct device_node *node, bool clk_supplier)
rc = 0;
goto err;
}
clk = of_clk_get_by_clkspec(&clkspec);
clk = of_clk_get_from_provider(&clkspec);
if (IS_ERR(clk)) {
pr_warn("clk: couldn't get parent clock %d for %s\n",
index, node->full_name);
@ -98,7 +97,7 @@ static int __set_clk_rates(struct device_node *node, bool clk_supplier)
if (clkspec.np == node && !clk_supplier)
return 0;
clk = of_clk_get_by_clkspec(&clkspec);
clk = of_clk_get_from_provider(&clkspec);
if (IS_ERR(clk)) {
pr_warn("clk: couldn't get clock %d for %s\n",
index, node->full_name);

32
drivers/clk/clk.c
View File

@ -2857,17 +2857,6 @@ static const struct of_device_id __clk_of_table_sentinel
static LIST_HEAD(of_clk_providers);
static DEFINE_MUTEX(of_clk_mutex);
/* of_clk_provider list locking helpers */
void of_clk_lock(void)
{
mutex_lock(&of_clk_mutex);
}
void of_clk_unlock(void)
{
mutex_unlock(&of_clk_mutex);
}
struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec,
void *data)
{
@ -2951,7 +2940,11 @@ struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec,
struct of_clk_provider *provider;
struct clk *clk = ERR_PTR(-EPROBE_DEFER);
if (!clkspec)
return ERR_PTR(-EINVAL);
/* Check if we have such a provider in our array */
mutex_lock(&of_clk_mutex);
list_for_each_entry(provider, &of_clk_providers, link) {
if (provider->node == clkspec->np)
clk = provider->get(clkspec, provider->data);
@ -2967,19 +2960,22 @@ struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec,
break;
}
}
mutex_unlock(&of_clk_mutex);
return clk;
}
/**
* of_clk_get_from_provider() - Lookup a clock from a clock provider
* @clkspec: pointer to a clock specifier data structure
*
* This function looks up a struct clk from the registered list of clock
* providers, an input is a clock specifier data structure as returned
* from the of_parse_phandle_with_args() function call.
*/
struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec)
{
struct clk *clk;
mutex_lock(&of_clk_mutex);
clk = __of_clk_get_from_provider(clkspec, NULL, __func__);
mutex_unlock(&of_clk_mutex);
return clk;
return __of_clk_get_from_provider(clkspec, NULL, __func__);
}
int of_clk_get_parent_count(struct device_node *np)

3
drivers/clk/clk.h
View File

@ -12,11 +12,8 @@
struct clk_hw;
#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
struct clk *of_clk_get_by_clkspec(struct of_phandle_args *clkspec);
struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec,
const char *dev_id, const char *con_id);
void of_clk_lock(void);
void of_clk_unlock(void);
#endif
#ifdef CONFIG_COMMON_CLK

30
drivers/clk/clkdev.c
View File

@ -28,34 +28,6 @@ static LIST_HEAD(clocks);
static DEFINE_MUTEX(clocks_mutex);
#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
static struct clk *__of_clk_get_by_clkspec(struct of_phandle_args *clkspec,
const char *dev_id, const char *con_id)
{
struct clk *clk;
if (!clkspec)
return ERR_PTR(-EINVAL);
of_clk_lock();
clk = __of_clk_get_from_provider(clkspec, dev_id, con_id);
of_clk_unlock();
return clk;
}
/**
* of_clk_get_by_clkspec() - Lookup a clock form a clock provider
* @clkspec: pointer to a clock specifier data structure
*
* This function looks up a struct clk from the registered list of clock
* providers, an input is a clock specifier data structure as returned
* from the of_parse_phandle_with_args() function call.
*/
struct clk *of_clk_get_by_clkspec(struct of_phandle_args *clkspec)
{
return __of_clk_get_by_clkspec(clkspec, NULL, __func__);
}
static struct clk *__of_clk_get(struct device_node *np, int index,
const char *dev_id, const char *con_id)
{
@ -71,7 +43,7 @@ static struct clk *__of_clk_get(struct device_node *np, int index,
if (rc)
return ERR_PTR(rc);
clk = __of_clk_get_by_clkspec(&clkspec, dev_id, con_id);
clk = __of_clk_get_from_provider(&clkspec, dev_id, con_id);
of_node_put(clkspec.np);
return clk;