diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 1e80f9ec1aa6a..34515f4323755 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -793,6 +793,9 @@ static struct opp_table *_allocate_opp_table(struct device *dev)
 
 	INIT_LIST_HEAD(&opp_table->dev_list);
 
+	/* Mark regulator count uninitialized */
+	opp_table->regulator_count = -1;
+
 	opp_dev = _add_opp_dev(dev, opp_table);
 	if (!opp_dev) {
 		kfree(opp_table);
@@ -955,7 +958,7 @@ struct dev_pm_opp *_opp_allocate(struct opp_table *table)
 	int count, supply_size;
 
 	/* Allocate space for at least one supply */
-	count = table->regulator_count ? table->regulator_count : 1;
+	count = table->regulator_count > 0 ? table->regulator_count : 1;
 	supply_size = sizeof(*opp->supplies) * count;
 
 	/* allocate new OPP node and supplies structures */
@@ -1363,7 +1366,7 @@ free_regulators:
 
 	kfree(opp_table->regulators);
 	opp_table->regulators = NULL;
-	opp_table->regulator_count = 0;
+	opp_table->regulator_count = -1;
 err:
 	dev_pm_opp_put_opp_table(opp_table);
 
@@ -1392,7 +1395,7 @@ void dev_pm_opp_put_regulators(struct opp_table *opp_table)
 
 	kfree(opp_table->regulators);
 	opp_table->regulators = NULL;
-	opp_table->regulator_count = 0;
+	opp_table->regulator_count = -1;
 
 put_opp_table:
 	dev_pm_opp_put_opp_table(opp_table);
@@ -1545,6 +1548,9 @@ int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
 	if (!opp_table)
 		return -ENOMEM;
 
+	/* Fix regulator count for dynamic OPPs */
+	opp_table->regulator_count = 1;
+
 	ret = _opp_add_v1(opp_table, dev, freq, u_volt, true);
 
 	dev_pm_opp_put_opp_table(opp_table);
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 20988c4266501..d64a13d7881b9 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -113,12 +113,10 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
 			      struct opp_table *opp_table)
 {
 	u32 *microvolt, *microamp = NULL;
-	int supplies, vcount, icount, ret, i, j;
+	int supplies = opp_table->regulator_count, vcount, icount, ret, i, j;
 	struct property *prop = NULL;
 	char name[NAME_MAX];
 
-	supplies = opp_table->regulator_count ? opp_table->regulator_count : 1;
-
 	/* Search for "opp-microvolt-<name>" */
 	if (opp_table->prop_name) {
 		snprintf(name, sizeof(name), "opp-microvolt-%s",
@@ -133,7 +131,13 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
 
 		/* Missing property isn't a problem, but an invalid entry is */
 		if (!prop) {
-			if (!opp_table->regulator_count)
+			if (unlikely(supplies == -1)) {
+				/* Initialize regulator_count */
+				opp_table->regulator_count = 0;
+				return 0;
+			}
+
+			if (!supplies)
 				return 0;
 
 			dev_err(dev, "%s: opp-microvolt missing although OPP managing regulators\n",
@@ -142,6 +146,14 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
 		}
 	}
 
+	if (unlikely(supplies == -1)) {
+		/* Initialize regulator_count */
+		supplies = opp_table->regulator_count = 1;
+	} else if (unlikely(!supplies)) {
+		dev_err(dev, "%s: opp-microvolt wasn't expected\n", __func__);
+		return -EINVAL;
+	}
+
 	vcount = of_property_count_u32_elems(opp->np, name);
 	if (vcount < 0) {
 		dev_err(dev, "%s: Invalid %s property (%d)\n",
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 7c540fd063b2d..c9e65964ed848 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -136,7 +136,9 @@ enum opp_table_access {
  * @prop_name: A name to postfix to many DT properties, while parsing them.
  * @clk: Device's clock handle
  * @regulators: Supply regulators
- * @regulator_count: Number of power supply regulators
+ * @regulator_count: Number of power supply regulators. Its value can be -1
+ * (uninitialized), 0 (no opp-microvolt property) or > 0 (has opp-microvolt
+ * property).
  * @genpd_performance_state: Device's power domain support performance state.
  * @set_opp: Platform specific set_opp callback
  * @set_opp_data: Data to be passed to set_opp callback
@@ -172,7 +174,7 @@ struct opp_table {
 	const char *prop_name;
 	struct clk *clk;
 	struct regulator **regulators;
-	unsigned int regulator_count;
+	int regulator_count;
 	bool genpd_performance_state;
 
 	int (*set_opp)(struct dev_pm_set_opp_data *data);
