From b496dfbc94ab86f970ef0167eaabe51f930aa5fb Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 5 Sep 2012 01:09:12 +0200 Subject: 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 Acked-by: Rob Herring Signed-off-by: Rafael J. Wysocki --- include/linux/opp.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux/opp.h') diff --git a/include/linux/opp.h b/include/linux/opp.h index 2a4e5faee90..214e0ebcb84 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) { -- cgit v1.2.3-70-g09d2