[PATCH v3 08/12] opp: Add devm_pm_opp_register_set_opp_helper
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-01-18 01:05:35
Also in:
linux-tegra, lkml
Subsystem:
operating performance points (opp), power management core, the rest · Maintainers:
Viresh Kumar, Nishanth Menon, Stephen Boyd, "Rafael J. Wysocki", Linus Torvalds
Add resource-managed version of dev_pm_opp_register_set_opp_helper(). Tested-by: Peter Geis <redacted> Tested-by: Nicolas Chauvet <redacted> Tested-by: Matt Merhar <redacted> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/opp/core.c | 34 ++++++++++++++++++++++++++++++++++ include/linux/pm_opp.h | 8 ++++++++ 2 files changed, 42 insertions(+)
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index fde2ec00ab0e..8e0d2193fd5f 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c@@ -2857,3 +2857,37 @@ int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp *opp) return ret; } EXPORT_SYMBOL_GPL(dev_pm_opp_set_voltage); + +static void devm_pm_opp_unregister_set_opp_helper(void *data) +{ + dev_pm_opp_unregister_set_opp_helper(data); +} + +/** + * devm_pm_opp_register_set_opp_helper() - Register custom set OPP helper + * @dev: Device for which the helper is getting registered. + * @set_opp: Custom set OPP helper. + * + * This is a resource-managed version of dev_pm_opp_register_set_opp_helper(). + * + * Return: pointer to 'struct opp_table' on success and errorno otherwise. + */ +struct opp_table * +devm_pm_opp_register_set_opp_helper(struct device *dev, + int (*set_opp)(struct dev_pm_set_opp_data *data)) +{ + struct opp_table *opp_table; + int err; + + opp_table = dev_pm_opp_register_set_opp_helper(dev, set_opp); + if (IS_ERR(opp_table)) + return opp_table; + + err = devm_add_action_or_reset(dev, devm_pm_opp_unregister_set_opp_helper, + opp_table); + if (err) + return ERR_PTR(err); + + return opp_table; +} +EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper);
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index e072148ae0e1..6de5853aaada 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h@@ -169,6 +169,7 @@ void dev_pm_opp_remove_table(struct device *dev); void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask); int dev_pm_opp_sync_regulators(struct device *dev); int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp *opp); +struct opp_table *devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data)); #else static inline struct opp_table *dev_pm_opp_get_opp_table(struct device *dev) {
@@ -428,6 +429,13 @@ static inline int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp * return -ENOTSUPP; } +static inline struct opp_table * +devm_pm_opp_register_set_opp_helper(struct device *dev, + int (*set_opp)(struct dev_pm_set_opp_data *data)) +{ + return ERR_PTR(-ENOTSUPP); +} + #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
--
2.29.2