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Commit 0764c604 authored by Dave Gerlach's avatar Dave Gerlach Committed by Rafael J. Wysocki
Browse files

PM / OPP: Expose _of_get_opp_desc_node as dev_pm_opp API 



Rename _of_get_opp_desc_node to dev_pm_opp_of_get_opp_desc_node and add it
to include/linux/pm_opp.h to allow other drivers, such as platform OPP
and cpufreq drivers, to make use of it.

Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarDave Gerlach <d-gerlach@ti.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 6ac42397

drivers/base/power/opp/of.c

+5 −4
Original line number Diff line number Diff line
@@ -243,7 +243,7 @@ void dev_pm_opp_of_remove_table(struct device *dev) 
EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table);



/* Returns opp descriptor node for a device, caller must do of_node_put() */

static struct device_node *_of_get_opp_desc_node(struct device *dev)

struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)

{

	/*

	 * There should be only ONE phandle present in "operating-points-v2"
@@ -252,6 +252,7 @@ static struct device_node *_of_get_opp_desc_node(struct device *dev) 


	return of_parse_phandle(dev->of_node, "operating-points-v2", 0);

}

EXPORT_SYMBOL_GPL(dev_pm_opp_of_get_opp_desc_node);



/**

 * _opp_add_static_v2() - Allocate static OPPs (As per 'v2' DT bindings)
@@ -478,7 +479,7 @@ int dev_pm_opp_of_add_table(struct device *dev) 
	 * OPPs have two version of bindings now. The older one is deprecated,

	 * try for the new binding first.

	 */

	opp_np = _of_get_opp_desc_node(dev);

	opp_np = dev_pm_opp_of_get_opp_desc_node(dev);

	if (!opp_np) {

		/*

		 * Try old-deprecated bindings for backward compatibility with
@@ -570,7 +571,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, 
	int cpu, ret = 0;



	/* Get OPP descriptor node */

	np = _of_get_opp_desc_node(cpu_dev);

	np = dev_pm_opp_of_get_opp_desc_node(cpu_dev);

	if (!np) {

		dev_dbg(cpu_dev, "%s: Couldn't find opp node.\n", __func__);

		return -ENOENT;
@@ -595,7 +596,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, 
		}



		/* Get OPP descriptor node */

		tmp_np = _of_get_opp_desc_node(tcpu_dev);

		tmp_np = dev_pm_opp_of_get_opp_desc_node(tcpu_dev);

		if (!tmp_np) {

			dev_err(tcpu_dev, "%s: Couldn't find opp node.\n",

				__func__);

include/linux/pm_opp.h

+6 −0
Original line number Diff line number Diff line
@@ -288,6 +288,7 @@ void dev_pm_opp_of_remove_table(struct device *dev); 
int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask);

void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask);

int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);

struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev);

#else

static inline int dev_pm_opp_of_add_table(struct device *dev)

{
@@ -311,6 +312,11 @@ static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct 
{

	return -ENOTSUPP;

}



static inline struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)

{

	return NULL;

}

#endif



#endif		/* __LINUX_OPP_H__ */