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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-07-29 16:23:03 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-08-07 03:04:23 +0200 |
| commit | 3ca9bb33c627f22640cfca97fdf88eec0a120dfd (patch) | |
| tree | 10ea15249fd8384b13b52b8a5cb8d0c2b7b71027 /include/linux/pm_opp.h | |
| parent | 274659029c9de5b11678d3a52a45e3dbc9177a48 (diff) | |
| download | lwn-3ca9bb33c627f22640cfca97fdf88eec0a120dfd.tar.gz lwn-3ca9bb33c627f22640cfca97fdf88eec0a120dfd.zip | |
PM / OPP: Add clock-latency-ns support
With "operating-points-v2" bindings, clock-latency is defined per OPP.
Users of this value expect a single value which defines the latency to
switch to any clock rate. Find maximum clock-latency-ns from the OPP
table to service requests from such users.
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.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 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index cec2d4540914..20324b579adc 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -31,6 +31,7 @@ unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); int dev_pm_opp_get_opp_count(struct device *dev); +unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev); struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, @@ -67,6 +68,11 @@ static inline int dev_pm_opp_get_opp_count(struct device *dev) return 0; } +static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) +{ + return 0; +} + static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, bool available) { |