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authorShawn Guo <shawn.guo@linaro.org>2012-09-04 19:09:12 -0400
committerRafael J. Wysocki <rjw@sisk.pl>2012-09-09 16:06:33 -0400
commitb496dfbc94ab86f970ef0167eaabe51f930aa5fb (patch)
tree3ce7bdb6847fbcff3f46935ebc5b5c17da23d31d /include/linux/opp.h
parentec971ea5f2426a0bf9d5cca9a103743918c12978 (diff)
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.h8
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);
48 48
49struct srcu_notifier_head *opp_get_notifier(struct device *dev); 49struct srcu_notifier_head *opp_get_notifier(struct device *dev);
50 50
51#ifdef CONFIG_OF
52int of_init_opp_table(struct device *dev);
53#else
54static inline int of_init_opp_table(struct device *dev)
55{
56 return -EINVAL;
57}
58#endif /* CONFIG_OF */
51#else 59#else
52static inline unsigned long opp_get_voltage(struct opp *opp) 60static inline unsigned long opp_get_voltage(struct opp *opp)
53{ 61{