1 files changed, 17 insertions, 22 deletions

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 8b4d721d6d63..5db44139cef8 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1035,18 +1035,14 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
 
 	cdev_init(&gdev->chrdev, &gpio_fileops);
 	gdev->chrdev.owner = THIS_MODULE;
-	gdev->chrdev.kobj.parent = &gdev->dev.kobj;
 	gdev->dev.devt = MKDEV(MAJOR(gpio_devt), gdev->id);
-	status = cdev_add(&gdev->chrdev, gdev->dev.devt, 1);
-	if (status < 0)
-		chip_warn(gdev->chip, "failed to add char device %d:%d\n",
-			  MAJOR(gpio_devt), gdev->id);
-	else
-		chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n",
-			 MAJOR(gpio_devt), gdev->id);
-	status = device_add(&gdev->dev);
+
+	status = cdev_device_add(&gdev->chrdev, &gdev->dev);
 	if (status)
-		goto err_remove_chardev;
+		return status;
+
+	chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n",
+		 MAJOR(gpio_devt), gdev->id);
 
 	status = gpiochip_sysfs_register(gdev);
 	if (status)
@@ -1061,9 +1057,7 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
 	return 0;
 
 err_remove_device:
-	device_del(&gdev->dev);
-err_remove_chardev:
-	cdev_del(&gdev->chrdev);
+	cdev_device_del(&gdev->chrdev, &gdev->dev);
 	return status;
 }
 
@@ -1347,8 +1341,7 @@ void gpiochip_remove(struct gpio_chip *chip)
 	 * be removed, else it will be dangling until the last user is
 	 * gone.
 	 */
-	cdev_del(&gdev->chrdev);
-	device_del(&gdev->dev);
+	cdev_device_del(&gdev->chrdev, &gdev->dev);
 	put_device(&gdev->dev);
 }
 EXPORT_SYMBOL_GPL(gpiochip_remove);
@@ -1522,7 +1515,7 @@ static bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip,
  */
 static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
 					  struct irq_chip *irqchip,
-					  int parent_irq,
+					  unsigned int parent_irq,
 					  irq_flow_handler_t parent_handler)
 {
 	unsigned int offset;
@@ -1571,7 +1564,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
  */
 void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
 				  struct irq_chip *irqchip,
-				  int parent_irq,
+				  unsigned int parent_irq,
 				  irq_flow_handler_t parent_handler)
 {
 	gpiochip_set_cascaded_irqchip(gpiochip, irqchip, parent_irq,
@@ -1588,7 +1581,7 @@ EXPORT_SYMBOL_GPL(gpiochip_set_chained_irqchip);
  */
 void gpiochip_set_nested_irqchip(struct gpio_chip *gpiochip,
 				 struct irq_chip *irqchip,
-				 int parent_irq)
+				 unsigned int parent_irq)
 {
 	if (!gpiochip->irq_nested) {
 		chip_err(gpiochip, "tried to nest a chained gpiochip\n");
@@ -3122,10 +3115,10 @@ static int dt_gpio_count(struct device *dev, const char *con_id)
 				 gpio_suffixes[i]);
 
 		ret = of_gpio_named_count(dev->of_node, propname);
-		if (ret >= 0)
+		if (ret > 0)
 			break;
 	}
-	return ret;
+	return ret ? ret : -ENOENT;
 }
 
 static int platform_gpio_count(struct device *dev, const char *con_id)
@@ -3326,7 +3319,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_index);
  * underlying firmware interface and then makes sure that the GPIO
  * descriptor is requested before it is returned to the caller.
  *
- * On successfull request the GPIO pin is configured in accordance with
+ * On successful request the GPIO pin is configured in accordance with
  * provided @dflags.
  *
  * In case of error an ERR_PTR() is returned.
@@ -3340,6 +3333,7 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
 	unsigned long lflags = 0;
 	bool active_low = false;
 	bool single_ended = false;
+	bool open_drain = false;
 	int ret;
 
 	if (!fwnode)
@@ -3353,6 +3347,7 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
 		if (!IS_ERR(desc)) {
 			active_low = flags & OF_GPIO_ACTIVE_LOW;
 			single_ended = flags & OF_GPIO_SINGLE_ENDED;
+			open_drain = flags & OF_GPIO_OPEN_DRAIN;
 		}
 	} else if (is_acpi_node(fwnode)) {
 		struct acpi_gpio_info info;
@@ -3373,7 +3368,7 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
 		lflags |= GPIO_ACTIVE_LOW;
 
 	if (single_ended) {
-		if (active_low)
+		if (open_drain)
 			lflags |= GPIO_OPEN_DRAIN;
 		else
 			lflags |= GPIO_OPEN_SOURCE;