1 files changed, 45 insertions, 29 deletions

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 86bf3b84ada5..d0478f1853db 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1723,7 +1723,7 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
 }
 
 /**
- * _gpiochip_irqchip_add() - adds an irqchip to a gpiochip
+ * gpiochip_irqchip_add_key() - adds an irqchip to a gpiochip
  * @gpiochip: the gpiochip to add the irqchip to
  * @irqchip: the irqchip to add to the gpiochip
  * @first_irq: if not dynamically assigned, the base (first) IRQ to
@@ -1749,13 +1749,13 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
  * the pins on the gpiochip can generate a unique IRQ. Everything else
  * need to be open coded.
  */
-int _gpiochip_irqchip_add(struct gpio_chip *gpiochip,
-			  struct irq_chip *irqchip,
-			  unsigned int first_irq,
-			  irq_flow_handler_t handler,
-			  unsigned int type,
-			  bool nested,
-			  struct lock_class_key *lock_key)
+int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip,
+			     struct irq_chip *irqchip,
+			     unsigned int first_irq,
+			     irq_flow_handler_t handler,
+			     unsigned int type,
+			     bool nested,
+			     struct lock_class_key *lock_key)
 {
 	struct device_node *of_node;
 	bool irq_base_set = false;
@@ -1840,7 +1840,7 @@ int _gpiochip_irqchip_add(struct gpio_chip *gpiochip,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(_gpiochip_irqchip_add);
+EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_key);
 
 #else /* CONFIG_GPIOLIB_IRQCHIP */
 
@@ -1876,6 +1876,19 @@ void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset)
 }
 EXPORT_SYMBOL_GPL(gpiochip_generic_free);
 
+/**
+ * gpiochip_generic_config() - apply configuration for a pin
+ * @chip: the gpiochip owning the GPIO
+ * @offset: the offset of the GPIO to apply the configuration
+ * @config: the configuration to be applied
+ */
+int gpiochip_generic_config(struct gpio_chip *chip, unsigned offset,
+			    unsigned long config)
+{
+	return pinctrl_gpio_set_config(chip->gpiodev->base + offset, config);
+}
+EXPORT_SYMBOL_GPL(gpiochip_generic_config);
+
 #ifdef CONFIG_PINCTRL
 
 /**
@@ -2264,6 +2277,14 @@ int gpiod_direction_input(struct gpio_desc *desc)
 }
 EXPORT_SYMBOL_GPL(gpiod_direction_input);
 
+static int gpio_set_drive_single_ended(struct gpio_chip *gc, unsigned offset,
+				       enum pin_config_param mode)
+{
+	unsigned long config = { PIN_CONF_PACKED(mode, 0) };
+
+	return gc->set_config ? gc->set_config(gc, offset, config) : -ENOTSUPP;
+}
+
 static int _gpiod_direction_output_raw(struct gpio_desc *desc, int value)
 {
 	struct gpio_chip *gc = desc->gdev->chip;
@@ -2280,32 +2301,25 @@ static int _gpiod_direction_output_raw(struct gpio_desc *desc, int value)
 
 	if (test_bit(FLAG_OPEN_DRAIN, &desc->flags)) {
 		/* First see if we can enable open drain in hardware */
-		if (gc->set_single_ended) {
-			ret = gc->set_single_ended(gc, gpio_chip_hwgpio(desc),
-						   LINE_MODE_OPEN_DRAIN);
-			if (!ret)
-				goto set_output_value;
-		}
+		ret = gpio_set_drive_single_ended(gc, gpio_chip_hwgpio(desc),
+						  PIN_CONFIG_DRIVE_OPEN_DRAIN);
+		if (!ret)
+			goto set_output_value;
 		/* Emulate open drain by not actively driving the line high */
 		if (val)
 			return gpiod_direction_input(desc);
 	}
 	else if (test_bit(FLAG_OPEN_SOURCE, &desc->flags)) {
-		if (gc->set_single_ended) {
-			ret = gc->set_single_ended(gc, gpio_chip_hwgpio(desc),
-						   LINE_MODE_OPEN_SOURCE);
-			if (!ret)
-				goto set_output_value;
-		}
+		ret = gpio_set_drive_single_ended(gc, gpio_chip_hwgpio(desc),
+						  PIN_CONFIG_DRIVE_OPEN_SOURCE);
+		if (!ret)
+			goto set_output_value;
 		/* Emulate open source by not actively driving the line low */
 		if (!val)
 			return gpiod_direction_input(desc);
 	} else {
-		/* Make sure to disable open drain/source hardware, if any */
-		if (gc->set_single_ended)
-			gc->set_single_ended(gc,
-					     gpio_chip_hwgpio(desc),
-					     LINE_MODE_PUSH_PULL);
+		gpio_set_drive_single_ended(gc, gpio_chip_hwgpio(desc),
+					    PIN_CONFIG_DRIVE_PUSH_PULL);
 	}
 
 set_output_value:
@@ -2376,17 +2390,19 @@ EXPORT_SYMBOL_GPL(gpiod_direction_output);
 int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
 {
 	struct gpio_chip	*chip;
+	unsigned long		config;
 
 	VALIDATE_DESC(desc);
 	chip = desc->gdev->chip;
-	if (!chip->set || !chip->set_debounce) {
+	if (!chip->set || !chip->set_config) {
 		gpiod_dbg(desc,
-			  "%s: missing set() or set_debounce() operations\n",
+			  "%s: missing set() or set_config() operations\n",
 			  __func__);
 		return -ENOTSUPP;
 	}
 
-	return chip->set_debounce(chip, gpio_chip_hwgpio(desc), debounce);
+	config = pinconf_to_config_packed(PIN_CONFIG_INPUT_DEBOUNCE, debounce);
+	return chip->set_config(chip, gpio_chip_hwgpio(desc), config);
 }
 EXPORT_SYMBOL_GPL(gpiod_set_debounce);