Re: [PATCH net-next 11/12] net: pse-pd: Add support for event reporting using devm_regulator_irq_helper

+int devm_pse_irq_helper(struct pse_controller_dev *pcdev, int irq,
+			int irq_flags, int supported_errs,
+			const struct pse_irq_desc *d)
+{
+	struct regulator_dev **rdevs;
+	void *irq_helper;
+	int i;
+
+	rdevs = devm_kcalloc(pcdev->dev, pcdev->nr_lines,
+			     sizeof(struct regulator_dev *), GFP_KERNEL);
+	if (!rdevs)
+		return -ENOMEM;
+
+	for (i = 0; i < pcdev->nr_lines; i++)
+		rdevs[i] = pcdev->pi[i].rdev;
+
+	/* Register notifiers - can fail if IRQ is not given */
+	irq_helper = devm_regulator_irq_helper(pcdev->dev, d, irq,
+					       0, supported_errs, NULL,
+					       &rdevs[0], pcdev->nr_lines);