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PM / OPP: Introduce function to free cpufreq table
cpufreq table allocated by opp_init_cpufreq_table is better freed by OPP layer itself. This allows future modifications to the table handling to be transparent to the users. Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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@ -321,6 +321,8 @@ opp_init_cpufreq_table - cpufreq framework typically is initialized with
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addition to CONFIG_PM as power management feature is required to
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dynamically scale voltage and frequency in a system.
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opp_free_cpufreq_table - Free up the table allocated by opp_init_cpufreq_table
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7. Data Structures
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==================
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Typically an SoC contains multiple voltage domains which are variable. Each
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@ -625,4 +625,21 @@ int opp_init_cpufreq_table(struct device *dev,
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return 0;
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}
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/**
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* opp_free_cpufreq_table() - free the cpufreq table
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* @dev: device for which we do this operation
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* @table: table to free
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*
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* Free up the table allocated by opp_init_cpufreq_table
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*/
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void opp_free_cpufreq_table(struct device *dev,
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struct cpufreq_frequency_table **table)
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{
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if (!table)
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return;
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kfree(*table);
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*table = NULL;
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}
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#endif /* CONFIG_CPU_FREQ */
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@ -94,12 +94,20 @@ static inline int opp_disable(struct device *dev, unsigned long freq)
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#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
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int opp_init_cpufreq_table(struct device *dev,
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struct cpufreq_frequency_table **table);
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void opp_free_cpufreq_table(struct device *dev,
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struct cpufreq_frequency_table **table);
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#else
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static inline int opp_init_cpufreq_table(struct device *dev,
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struct cpufreq_frequency_table **table)
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{
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return -EINVAL;
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}
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static inline
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void opp_free_cpufreq_table(struct device *dev,
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struct cpufreq_frequency_table **table)
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{
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}
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#endif /* CONFIG_CPU_FREQ */
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#endif /* __LINUX_OPP_H__ */
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