1 files changed, 19 insertions, 17 deletions

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index d68cef4ec52a..cf9db8ac0f42 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -1345,7 +1345,16 @@ static int intel_gpio_irq_init_hw(struct gpio_chip *gc)
 	return 0;
 }
 
-static int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
+/**
+ * intel_gpio_add_pin_ranges - add GPIO pin ranges for all groups in all communities
+ * @gc: GPIO chip structure
+ *
+ * This function iterates over all communities and all groups and adds the respective
+ * GPIO pin ranges, so the GPIO library will correctly map a GPIO offset to a pin number.
+ *
+ * Return: 0, or negative error code if range can't be added.
+ */
+int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
 {
 	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
 	const struct intel_community *community;
@@ -1356,14 +1365,13 @@ static int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
 		ret = gpiochip_add_pin_range(&pctrl->chip, dev_name(pctrl->dev),
 					     grp->gpio_base, grp->base,
 					     grp->size);
-		if (ret) {
-			dev_err(pctrl->dev, "failed to add GPIO pin range\n");
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(pctrl->dev, ret, "failed to add GPIO pin range\n");
 	}
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(intel_gpio_add_pin_ranges, "PINCTRL_INTEL");
 
 static unsigned int intel_gpio_ngpio(const struct intel_pinctrl *pctrl)
 {
@@ -1401,10 +1409,8 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
 	ret = devm_request_irq(pctrl->dev, irq, intel_gpio_irq,
 			       IRQF_SHARED | IRQF_NO_THREAD,
 			       dev_name(pctrl->dev), pctrl);
-	if (ret) {
-		dev_err(pctrl->dev, "failed to request interrupt\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(pctrl->dev, ret, "failed to request interrupt\n");
 
 	/* Setup IRQ chip */
 	girq = &pctrl->chip.irq;
@@ -1417,10 +1423,8 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
 	girq->init_hw = intel_gpio_irq_init_hw;
 
 	ret = devm_gpiochip_add_data(pctrl->dev, &pctrl->chip, pctrl);
-	if (ret) {
-		dev_err(pctrl->dev, "failed to register gpiochip\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(pctrl->dev, ret, "failed to register gpiochip\n");
 
 	return 0;
 }
@@ -1668,10 +1672,8 @@ int intel_pinctrl_probe(struct platform_device *pdev,
 	pctrl->pctldesc.npins = pctrl->soc->npins;
 
 	pctrl->pctldev = devm_pinctrl_register(dev, &pctrl->pctldesc, pctrl);
-	if (IS_ERR(pctrl->pctldev)) {
-		dev_err(dev, "failed to register pinctrl driver\n");
-		return PTR_ERR(pctrl->pctldev);
-	}
+	if (IS_ERR(pctrl->pctldev))
+		return dev_err_probe(dev, PTR_ERR(pctrl->pctldev), "failed to register pinctrl\n");
 
 	ret = intel_gpio_probe(pctrl, irq);
 	if (ret)