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authorRajagopal Venkat <rajagopal.venkat@linaro.org>2012-10-26 03:50:18 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-11-15 03:35:04 +0400
commit206c30cfeb7c05dfb9fdfd81b1deb933627e43c1 (patch)
tree0cc26302a81b78cf7d790e0483d2734753cf3d04 /include/linux/devfreq.h
parent7e6fdd4bad033fa2d73716377b184fa975b0d985 (diff)
downloadlinux-206c30cfeb7c05dfb9fdfd81b1deb933627e43c1.tar.xz
PM / devfreq: Add suspend and resume apis
Add devfreq suspend/resume apis for devfreq users. This patch supports suspend and resume of devfreq load monitoring, required for devices which can idle. Signed-off-by: Rajagopal Venkat <rajagopal.venkat@linaro.org> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/devfreq.h')
-rw-r--r--include/linux/devfreq.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 9cdffde74bb5..ee243a3229b8 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -158,6 +158,8 @@ extern struct devfreq *devfreq_add_device(struct device *dev,
const struct devfreq_governor *governor,
void *data);
extern int devfreq_remove_device(struct devfreq *devfreq);
+extern int devfreq_suspend_device(struct devfreq *devfreq);
+extern int devfreq_resume_device(struct devfreq *devfreq);
/* Helper functions for devfreq user device driver with OPP. */
extern struct opp *devfreq_recommended_opp(struct device *dev,
@@ -211,6 +213,16 @@ static int devfreq_remove_device(struct devfreq *devfreq)
return 0;
}
+static int devfreq_suspend_device(struct devfreq *devfreq)
+{
+ return 0;
+}
+
+static int devfreq_resume_device(struct devfreq *devfreq)
+{
+ return 0;
+}
+
static struct opp *devfreq_recommended_opp(struct device *dev,
unsigned long *freq, u32 flags)
{