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Commit d708b384 authored by Viresh Kumar's avatar Viresh Kumar Committed by Rafael J. Wysocki
Browse files

PM / OPP: -ENOSYS is applicable only to syscalls 



Some of the routines have used -ENOSYS for the cases where the
functionality isn't implemented in the kernel. But ENOSYS is supposed to
be used only for syscalls.

Replace that with -ENOTSUPP, which specifically means that the operation
isn't supported.

While at it, replace exiting -EINVAL errors for similar cases to
-ENOTSUPP.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 46e7a4e1

include/linux/pm_opp.h

+13 −13
Original line number Diff line number Diff line
@@ -110,25 +110,25 @@ static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) 
static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,

					unsigned long freq, bool available)

{

	return ERR_PTR(-EINVAL);

	return ERR_PTR(-ENOTSUPP);

}



static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,

					unsigned long *freq)

{

	return ERR_PTR(-EINVAL);

	return ERR_PTR(-ENOTSUPP);

}



static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,

					unsigned long *freq)

{

	return ERR_PTR(-EINVAL);

	return ERR_PTR(-ENOTSUPP);

}



static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,

					unsigned long u_volt)

{

	return -EINVAL;

	return -ENOTSUPP;

}



static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
@@ -148,40 +148,40 @@ static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) 
static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(

							struct device *dev)

{

	return ERR_PTR(-EINVAL);

	return ERR_PTR(-ENOTSUPP);

}



static inline int dev_pm_opp_set_supported_hw(struct device *dev,

					      const u32 *versions,

					      unsigned int count)

{

	return -EINVAL;

	return -ENOTSUPP;

}



static inline void dev_pm_opp_put_supported_hw(struct device *dev) {}



static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name)

{

	return -EINVAL;

	return -ENOTSUPP;

}



static inline void dev_pm_opp_put_prop_name(struct device *dev) {}



static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name)

{

	return -EINVAL;

	return -ENOTSUPP;

}



static inline void dev_pm_opp_put_regulator(struct device *dev) {}



static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)

{

	return -EINVAL;

	return -ENOTSUPP;

}



static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)

{

	return -ENOSYS;

	return -ENOTSUPP;

}



#endif		/* CONFIG_PM_OPP */
@@ -195,7 +195,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask 
#else

static inline int dev_pm_opp_of_add_table(struct device *dev)

{

	return -EINVAL;

	return -ENOTSUPP;

}



static inline void dev_pm_opp_of_remove_table(struct device *dev)
@@ -204,7 +204,7 @@ static inline void dev_pm_opp_of_remove_table(struct device *dev) 


static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask)

{

	return -ENOSYS;

	return -ENOTSUPP;

}



static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask)
@@ -213,7 +213,7 @@ static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) 


static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)

{

	return -ENOSYS;

	return -ENOTSUPP;

}

#endif