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-rw-r--r--drivers/opp/core.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 5ecf077b6b17..3a794bff2ba1 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -118,6 +118,31 @@ unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage);
/**
+ * dev_pm_opp_get_supplies() - Gets the supply information corresponding to an opp
+ * @opp: opp for which voltage has to be returned for
+ * @supplies: Placeholder for copying the supply information.
+ *
+ * Return: negative error number on failure, 0 otherwise on success after
+ * setting @supplies.
+ *
+ * This can be used for devices with any number of power supplies. The caller
+ * must ensure the @supplies array must contain space for each regulator.
+ */
+int dev_pm_opp_get_supplies(struct dev_pm_opp *opp,
+ struct dev_pm_opp_supply *supplies)
+{
+ if (IS_ERR_OR_NULL(opp) || !supplies) {
+ pr_err("%s: Invalid parameters\n", __func__);
+ return -EINVAL;
+ }
+
+ memcpy(supplies, opp->supplies,
+ sizeof(*supplies) * opp->opp_table->regulator_count);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_supplies);
+
+/**
* dev_pm_opp_get_power() - Gets the power corresponding to an opp
* @opp: opp for which power has to be returned for
*