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opp: Add devres wrapper for dev_pm_opp_of_add_table

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

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Yangtao Li 2021-03-14 19:33:57 +03:00 committed by Viresh Kumar
parent 9c4f220f3d
commit 3d5cfbb695
2 changed files with 42 additions and 0 deletions
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36
drivers/opp/of.c
View File

@ -1104,6 +1104,42 @@ static int _of_add_table_indexed(struct device *dev, int index, bool getclk)
return ret; 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_pm_opp_of_add_table() - Initialize opp table from device tree
* @dev: device pointer used to lookup OPP table. * @dev: device pointer used to lookup OPP table.

6
include/linux/pm_opp.h
View File

@ -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_indexed(struct device *dev, int index);
int dev_pm_opp_of_add_table_noclk(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); 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); int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask);
void dev_pm_opp_of_cpumask_remove_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); 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) static inline int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask)
{ {
return -EOPNOTSUPP; return -EOPNOTSUPP;