+static irqreturn_t pm8941_resinkey_irq(int irq, void *_data)
+{
+	struct pm8941_pwrkey *pwrkey = _data;
+	unsigned int sts;
+	int error;
+	u32 key_code = pwrkey->resin_key_code;
+
+	error = regmap_read(pwrkey->regmap,
+			    pwrkey->baseaddr + PON_RT_STS, &sts);
+	if (error)
+		return IRQ_HANDLED;
+
+	input_report_key(pwrkey->input, key_code, !!(sts & PON_RESIN_N_SET));
+	input_sync(pwrkey->input);
+
+	return IRQ_HANDLED;
+}
+
  static int __maybe_unused pm8941_pwrkey_suspend(struct device *dev)
  {
  	struct pm8941_pwrkey *pwrkey = dev_get_drvdata(dev);

@@ -153,9 +175,56 @@ static int __maybe_unused pm8941_pwrkey_resume(struct device *dev)
  static SIMPLE_DEV_PM_OPS(pm8941_pwr_key_pm_ops,
  			 pm8941_pwrkey_suspend, pm8941_pwrkey_resume);
  
+static int pm8941_resin_key_init(struct pm8941_pwrkey *pwrkey,
+			struct device_node *np)
+{
+	int error, irq;
+	bool pull_up;
+
+	/*
+	 * Get the standard-key parameters. This might not be
+	 * specified if there is no key mapping on the reset line.
+	 */
+	error = of_property_read_u32(np, "linux,code", &pwrkey->resin_key_code);
+	if (error) {
+		dev_err(pwrkey->dev, "failed to read key-code for resin key\n");
+		return error;
+	}
+
+	pull_up = of_property_read_bool(np, "bias-pull-up");
+
+	irq = irq_of_parse_and_map(np, 0);
+	if (irq < 0) {
+		dev_err(pwrkey->dev, "failed to get resin irq\n");
+		return -EINVAL;
+	}
+
+	/* Register key configuration */
+	input_set_capability(pwrkey->input, EV_KEY, pwrkey->resin_key_code);
+
+	error = regmap_update_bits(pwrkey->regmap,
+				   pwrkey->baseaddr + PON_PULL_CTL,
+				   PON_RESIN_PULL_UP,
+				   pull_up ? PON_RESIN_PULL_UP : 0);
+	if (error) {
+		dev_err(pwrkey->dev, "failed to set resin pull: %d\n", error);
+		return error;
+	}
+
+	error = devm_request_threaded_irq(pwrkey->dev, irq, NULL,
+					  pm8941_resinkey_irq, IRQF_ONESHOT,
+					  "pm8941_resinkey", pwrkey);
+	if (error)
+		dev_err(pwrkey->dev, "failed requesting resin key IRQ: %d\n",
+			error);
+
+	return error;
+}
+
  static int pm8941_pwrkey_probe(struct platform_device *pdev)
  {
  	struct pm8941_pwrkey *pwrkey;
+	struct device_node *np = NULL;
  	bool pull_up;
  	u32 req_delay;
  	int error;

@@ -241,6 +310,18 @@ static int pm8941_pwrkey_probe(struct platform_device *pdev)
  		return error;
  	}
  
+	np = of_find_node_by_name(pdev->dev.of_node, "resin");
+	if (np) {
+		/* resin key capabilities are defined in device node */
+		error = pm8941_resin_key_init(pwrkey, np);