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PM / OPP: Parse 'opp-<prop>-<name>' bindings

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OPP bindings (for few properties) allow a platform to choose a
value/range among a set of available options. The options are present as
opp-<prop>-<name>, where the platform needs to supply the <name> string.

The OPP properties which allow such an option are: opp-microvolt and
opp-microamp.

Add support to the OPP-core to parse these bindings, by introducing
dev_pm_opp_{set|put}_prop_name() 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>
This commit is contained in:
Viresh Kumar
2015-12-09 08:01:47 +05:30
committed by Rafael J. Wysocki
parent 7de36b0aa5
commit 01fb4d3c39
3 changed files with 161 additions and 15 deletions
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2
drivers/base/power/opp/opp.h
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@@ -131,6 +131,7 @@ struct device_list_opp {
* @suspend_opp: Pointer to OPP to be used during device suspend.
* @supported_hw: Array of version number to support.
* @supported_hw_count: Number of elements in supported_hw array.
* @prop_name: A name to postfix to many DT properties, while parsing them.
* @dentry: debugfs dentry pointer of the real device directory (not links).
* @dentry_name: Name of the real dentry.
*
@@ -157,6 +158,7 @@ struct device_opp {
unsigned int *supported_hw;
unsigned int supported_hw_count;
const char *prop_name;
#ifdef CONFIG_DEBUG_FS
struct dentry *dentry;