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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2017-06-21 10:29:13 +0530 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-06-24 01:41:55 +0200 |
| commit | 829a4e8c0e9aab17bcfe2ddb070388b8ada26292 (patch) | |
| tree | d81f8ee5aee499c3dac6115557bc740f9f98ec66 /include/linux/pm_opp.h | |
| parent | PM / OPP: Use - instead of @ for DT entries (diff) | |
| download | linux-dev-829a4e8c0e9aab17bcfe2ddb070388b8ada26292.tar.xz linux-dev-829a4e8c0e9aab17bcfe2ddb070388b8ada26292.zip | |
PM / OPP: Add dev_pm_opp_{set|put}_clkname()
In order to support OPP switching, OPP layer needs to get pointer to the
clock for the device. Simple cases work fine without using the routines
added by this patch (i.e. by passing connection-id as NULL), but for a
device with multiple clocks available, the OPP core needs to know the
exact name of the clk to use.
Add a new set of APIs to get that done.
Tested-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_opp.h')
| -rw-r--r-- | include/linux/pm_opp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index a6685b3dde26..51ec727b4824 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -121,6 +121,8 @@ struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name) void dev_pm_opp_put_prop_name(struct opp_table *opp_table); struct opp_table *dev_pm_opp_set_regulators(struct device *dev, const char * const names[], unsigned int count); void dev_pm_opp_put_regulators(struct opp_table *opp_table); +struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char * name); +void dev_pm_opp_put_clkname(struct opp_table *opp_table); struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data)); void dev_pm_opp_register_put_opp_helper(struct opp_table *opp_table); int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); @@ -257,6 +259,13 @@ static inline struct opp_table *dev_pm_opp_set_regulators(struct device *dev, co static inline void dev_pm_opp_put_regulators(struct opp_table *opp_table) {} +static inline struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char * name) +{ + return ERR_PTR(-ENOTSUPP); +} + +static inline void dev_pm_opp_put_clkname(struct opp_table *opp_table) {} + static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) { return -ENOTSUPP; |