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opp: Implement dev_pm_opp_set_opp()
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 <viresh.kumar@linaro.org> Tested-by: Dmitry Osipenko <digetx@gmail.com>
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2 changed files with 34 additions and 0 deletions
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@ -1136,6 +1136,34 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
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}
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}
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EXPORT_SYMBOL_GPL(dev_pm_opp_set_rate);
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EXPORT_SYMBOL_GPL(dev_pm_opp_set_rate);
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/**
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* dev_pm_opp_set_opp() - Configure device for OPP
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* @dev: device for which we do this operation
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* @opp: OPP to set to
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*
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* This configures the device based on the properties of the OPP passed to this
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* routine.
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*
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* Return: 0 on success, a negative error number otherwise.
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*/
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int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp)
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{
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struct opp_table *opp_table;
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int ret;
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opp_table = _find_opp_table(dev);
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if (IS_ERR(opp_table)) {
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dev_err(dev, "%s: device opp doesn't exist\n", __func__);
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return PTR_ERR(opp_table);
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}
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ret = _set_opp(dev, opp_table, opp, opp ? opp->rate : 0);
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dev_pm_opp_put_opp_table(opp_table);
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return ret;
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}
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EXPORT_SYMBOL_GPL(dev_pm_opp_set_opp);
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/* OPP-dev Helpers */
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/* OPP-dev Helpers */
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static void _remove_opp_dev(struct opp_device *opp_dev,
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static void _remove_opp_dev(struct opp_device *opp_dev,
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struct opp_table *opp_table)
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struct opp_table *opp_table)
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@ -158,6 +158,7 @@ void dev_pm_opp_detach_genpd(struct opp_table *opp_table);
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struct opp_table *devm_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs);
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struct opp_table *devm_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs);
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int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate);
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int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate);
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int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
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int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
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int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp);
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int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp);
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int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp);
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int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask);
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int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask);
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int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
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int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
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@ -377,6 +378,11 @@ static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_f
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return -ENOTSUPP;
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return -ENOTSUPP;
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}
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}
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static inline int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp)
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{
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return -ENOTSUPP;
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}
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static inline int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp)
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static inline int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp)
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{
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{
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return -EOPNOTSUPP;
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return -EOPNOTSUPP;
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