The new helper dev_pm_opp_set_opp() can be used for configuring the devices for a particular OPP and can be used by different type of devices, even the ones which don't change frequency (like power domains).
Signed-off-by: Viresh Kumar <[email protected]> --- drivers/opp/core.c | 28 ++++++++++++++++++++++++++++ include/linux/pm_opp.h | 6 ++++++ 2 files changed, 34 insertions(+) diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 3500cc9de66b..5a367ef02b92 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -1130,6 +1130,34 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) } EXPORT_SYMBOL_GPL(dev_pm_opp_set_rate); +/** + * dev_pm_opp_set_opp() - Configure device for OPP + * @dev: device for which we do this operation + * @opp: OPP to set to + * + * This configures the device based on the properties of the OPP passed to this + * routine. + * + * Return: 0 on success, a negative error number otherwise. + */ +int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp) +{ + struct opp_table *opp_table; + int ret; + + opp_table = _find_opp_table(dev); + if (IS_ERR(opp_table)) { + dev_err(dev, "%s: device opp doesn't exist\n", __func__); + return PTR_ERR(opp_table); + } + + ret = _set_opp(dev, opp_table, opp, opp->rate); + dev_pm_opp_put_opp_table(opp_table); + + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_set_opp); + /* OPP-dev Helpers */ static void _remove_opp_dev(struct opp_device *opp_dev, struct opp_table *opp_table) diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index f8e9a8e3eb59..2d8a706f8d00 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -158,6 +158,7 @@ void dev_pm_opp_detach_genpd(struct opp_table *opp_table); struct opp_table *devm_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs); int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate); int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); +int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp); int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp); int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask); int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); @@ -376,6 +377,11 @@ static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_f return -ENOTSUPP; } +static inline int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp) +{ + return -ENOTSUPP; +} + static inline int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp) { return -EOPNOTSUPP; -- 2.25.0.rc1.19.g042ed3e048af
