Commit 3d5cfbb6 authored by Yangtao Li's avatar Yangtao Li Committed by Viresh Kumar
Browse files

opp: Add devres wrapper for dev_pm_opp_of_add_table 



Add devres wrapper for dev_pm_opp_of_add_table() to simplify drivers
code.

Signed-off-by: default avatarYangtao Li <tiny.windzz@gmail.com>
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 9c4f220f

drivers/opp/of.c

+36 −0
Original line number Diff line number Diff line
@@ -1104,6 +1104,42 @@ static int _of_add_table_indexed(struct device *dev, int index, bool getclk) 
	return ret;

}



static void devm_pm_opp_of_table_release(void *data)

{

	dev_pm_opp_of_remove_table(data);

}



/**

 * devm_pm_opp_of_add_table() - Initialize opp table from device tree

 * @dev:	device pointer used to lookup OPP table.

 *

 * Register the initial OPP table with the OPP library for given device.

 *

 * The opp_table structure will be freed after the device is destroyed.

 *

 * Return:

 * 0		On success OR

 *		Duplicate OPPs (both freq and volt are same) and opp->available

 * -EEXIST	Freq are same and volt are different OR

 *		Duplicate OPPs (both freq and volt are same) and !opp->available

 * -ENOMEM	Memory allocation failure

 * -ENODEV	when 'operating-points' property is not found or is invalid data

 *		in device node.

 * -ENODATA	when empty 'operating-points' property is found

 * -EINVAL	when invalid entries are found in opp-v2 table

 */

int devm_pm_opp_of_add_table(struct device *dev)

{

	int ret;



	ret = dev_pm_opp_of_add_table(dev);

	if (ret)

		return ret;



	return devm_add_action_or_reset(dev, devm_pm_opp_of_table_release, dev);

}

EXPORT_SYMBOL_GPL(devm_pm_opp_of_add_table);



/**

 * dev_pm_opp_of_add_table() - Initialize opp table from device tree

 * @dev:	device pointer used to lookup OPP table.

include/linux/pm_opp.h

+6 −0
Original line number Diff line number Diff line
@@ -441,6 +441,7 @@ int dev_pm_opp_of_add_table(struct device *dev); 
int dev_pm_opp_of_add_table_indexed(struct device *dev, int index);

int dev_pm_opp_of_add_table_noclk(struct device *dev, int index);

void dev_pm_opp_of_remove_table(struct device *dev);

int devm_pm_opp_of_add_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);
@@ -473,6 +474,11 @@ static inline void dev_pm_opp_of_remove_table(struct device *dev) 
{

}



static inline int devm_pm_opp_of_add_table(struct device *dev)

{

	return -EOPNOTSUPP;

}



static inline int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask)

{

	return -EOPNOTSUPP;