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authorViresh Kumar <viresh.kumar@linaro.org>2015-12-09 08:01:46 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-10 23:08:51 +0100
commit7de36b0aa51a5a59e28fb2da768fa3ab07de0674 (patch)
treea46061b13b61ebf6c8c31ddb92f95590828dedae /include/linux/pm_opp.h
parentPM / OPP: Add missing doc comments (diff)
downloadlinux-dev-7de36b0aa51a5a59e28fb2da768fa3ab07de0674.tar.xz
linux-dev-7de36b0aa51a5a59e28fb2da768fa3ab07de0674.zip
PM / OPP: Parse 'opp-supported-hw' binding
OPP bindings allow a platform to enable OPPs based on the version of the hardware they are used for. Add support to the OPP-core to parse these bindings, by introducing dev_pm_opp_{set|put}_supported_hw() APIs. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Lee Jones <lee.jones@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.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 9a2e50337af9..3a85110242f0 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -55,6 +55,9 @@ int dev_pm_opp_enable(struct device *dev, unsigned long freq);
int dev_pm_opp_disable(struct device *dev, unsigned long freq);
struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
+int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
+ unsigned int count);
+void dev_pm_opp_put_supported_hw(struct device *dev);
#else
static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
{
@@ -129,6 +132,16 @@ static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
{
return ERR_PTR(-EINVAL);
}
+
+static inline int dev_pm_opp_set_supported_hw(struct device *dev,
+ const u32 *versions,
+ unsigned int count)
+{
+ return -EINVAL;
+}
+
+static inline void dev_pm_opp_put_supported_hw(struct device *dev) {}
+
#endif /* CONFIG_PM_OPP */
#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)