diff options
| author |   Shawn Guo <shawn.guo@linaro.org> | 2012-09-05 01:09:12 +0200 |
|---|---|---|
| committer |   Rafael J. Wysocki <rjw@sisk.pl> | 2012-09-09 22:06:33 +0200 |
| commit | b496dfbc94ab86f970ef0167eaabe51f930aa5fb (patch) | |
| tree | 3ce7bdb6847fbcff3f46935ebc5b5c17da23d31d /include/linux/opp.h | |
| parent | ARM: add cpufreq transiton notifier to adjust loops_per_jiffy for smp (diff) | |
| download | linux-dev-b496dfbc94ab86f970ef0167eaabe51f930aa5fb.tar.xz linux-dev-b496dfbc94ab86f970ef0167eaabe51f930aa5fb.zip | |
PM / OPP: Initialize OPP table from device tree
With a lot of devices booting from device tree nowadays, it requires
that OPP table can be initialized from device tree. The patch adds
a helper function of_init_opp_table together with a binding doc for
that purpose.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/opp.h')
| -rw-r--r-- | include/linux/opp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/opp.h b/include/linux/opp.h index 2a4e5faee904..214e0ebcb84d 100644 --- a/include/linux/opp.h +++ b/include/linux/opp.h @@ -48,6 +48,14 @@ int opp_disable(struct device *dev, unsigned long freq); struct srcu_notifier_head *opp_get_notifier(struct device *dev); +#ifdef CONFIG_OF +int of_init_opp_table(struct device *dev); +#else +static inline int of_init_opp_table(struct device *dev) +{ + return -EINVAL; +} +#endif /* CONFIG_OF */ #else static inline unsigned long opp_get_voltage(struct opp *opp) { |