Index: ofw_regulator.c
===================================================================
RCS file: /cvs/src/sys/dev/ofw/ofw_regulator.c,v
retrieving revision 1.17
diff -u -p -r1.17 ofw_regulator.c
--- ofw_regulator.c	1 Apr 2023 08:37:23 -0000	1.17
+++ ofw_regulator.c	6 Apr 2023 00:23:03 -0000
@@ -107,6 +107,14 @@ regulator_fixed_set(int node, int enable
 	uint32_t startup_delay;
 	int len;
 
+	/*
+	 * This regulator may rely on another. That "parent" regulator
+	 * may be used by multiple other devices/regulators, so unless
+	 * we refcnt use of a shared regulator we can only turn it on.
+	 */
+	if (enable)
+		regulator_enable(OF_getpropint(node, "vin-supply", 0));
+
 	pinctrl_byname(node, "default");
 
 	/* The "gpio" property is optional. */
@@ -128,7 +136,7 @@ regulator_fixed_set(int node, int enable
 	 */
 
 	gpio = malloc(len, M_TEMP, M_WAITOK);
-	OF_getpropintarray(node, "gpio", gpio, len);
+	OF_getpropintarray(node, prop, gpio, len);
 	gpio_controller_config_pin(gpio, GPIO_CONFIG_OUTPUT);
 	if (enable)
 		gpio_controller_set_pin(gpio, 1);