Merge branch 'ib-gpiod-flags' into devel

drivers/gpio/devres.c

@@ -125,9 +125,11 @@ struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
 EXPORT_SYMBOL(devm_gpiod_get_index);
 
 /**
- * devm_get_gpiod_from_child - get a GPIO descriptor from a device's child node
+ * devm_fwnode_get_index_gpiod_from_child - get a GPIO descriptor from a
+ *					    device's child node
  * @dev:	GPIO consumer
  * @con_id:	function within the GPIO consumer
+ * @index:	index of the GPIO to obtain in the consumer
  * @child:	firmware node (child of @dev)
  * @flags:	GPIO initialization flags
  *
@@ -137,11 +139,11 @@ EXPORT_SYMBOL(devm_gpiod_get_index);
  * On successfull request the GPIO pin is configured in accordance with
  * provided @flags.
  */
-struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
-					    const char *con_id,
-					    struct fwnode_handle *child,
-					    enum gpiod_flags flags,
-					    const char *label)
+struct gpio_desc *devm_fwnode_get_index_gpiod_from_child(struct device *dev,
+						const char *con_id, int index,
+						struct fwnode_handle *child,
+						enum gpiod_flags flags,
+						const char *label)
 {
 	char prop_name[32]; /* 32 is max size of property name */
 	struct gpio_desc **dr;
@@ -161,7 +163,8 @@ struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
 			snprintf(prop_name, sizeof(prop_name), "%s",
 					    gpio_suffixes[i]);
 
-		desc = fwnode_get_named_gpiod(child, prop_name, flags, label);
+		desc = fwnode_get_named_gpiod(child, prop_name, index, flags,
+					      label);
 		if (!IS_ERR(desc) || (PTR_ERR(desc) != -ENOENT))
 			break;
 	}
@@ -175,7 +178,7 @@ struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
 
 	return desc;
 }
-EXPORT_SYMBOL(devm_get_gpiod_from_child);
+EXPORT_SYMBOL(devm_fwnode_get_index_gpiod_from_child);
 
 /**
  * devm_gpiod_get_index_optional - Resource-managed gpiod_get_index_optional()

drivers/gpio/gpiolib.c

@@ -3316,6 +3316,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_index);
  * fwnode_get_named_gpiod - obtain a GPIO from firmware node
  * @fwnode:	handle of the firmware node
  * @propname:	name of the firmware property representing the GPIO
+ * @index:	index of the GPIO to obtain in the consumer
  * @dflags:	GPIO initialization flags
  *
  * This function can be used for drivers that get their configuration
@@ -3331,7 +3332,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_index);
  * In case of error an ERR_PTR() is returned.
  */
 struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
-					 const char *propname,
+					 const char *propname, int index,
 					 enum gpiod_flags dflags,
 					 const char *label)
 {
@@ -3347,16 +3348,16 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
 	if (is_of_node(fwnode)) {
 		enum of_gpio_flags flags;
 
-		desc = of_get_named_gpiod_flags(to_of_node(fwnode), propname, 0,
-						&flags);
+		desc = of_get_named_gpiod_flags(to_of_node(fwnode), propname,
+						index, &flags);
 		if (!IS_ERR(desc)) {
 			active_low = flags & OF_GPIO_ACTIVE_LOW;
 			single_ended = flags & OF_GPIO_SINGLE_ENDED;
 		}
 	} else if (is_acpi_node(fwnode)) {
 		struct acpi_gpio_info info;
 
-		desc = acpi_node_get_gpiod(fwnode, propname, 0, &info);
+		desc = acpi_node_get_gpiod(fwnode, propname, index, &info);
 		if (!IS_ERR(desc))
 			active_low = info.polarity == GPIO_ACTIVE_LOW;
 	}

drivers/input/keyboard/gpio_keys.c

@@ -481,8 +481,10 @@ static int gpio_keys_setup_key(struct platform_device *pdev,
 	spin_lock_init(&bdata->lock);
 
 	if (child) {
-		bdata->gpiod = devm_get_gpiod_from_child(dev, NULL, child,
-							 GPIOD_IN, desc);
+		bdata->gpiod = devm_fwnode_get_gpiod_from_child(dev, NULL,
+								child,
+								GPIOD_IN,
+								desc);
 		if (IS_ERR(bdata->gpiod)) {
 			error = PTR_ERR(bdata->gpiod);
 			if (error == -ENOENT) {

drivers/input/keyboard/gpio_keys_polled.c

@@ -303,10 +303,10 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 				return -EINVAL;
 			}
 
-			bdata->gpiod = devm_get_gpiod_from_child(dev, NULL,
-								 child,
-								 GPIOD_IN,
-								 button->desc);
+			bdata->gpiod = devm_fwnode_get_gpiod_from_child(dev,
+								NULL, child,
+								GPIOD_IN,
+								button->desc);
 			if (IS_ERR(bdata->gpiod)) {
 				error = PTR_ERR(bdata->gpiod);
 				if (error != -EPROBE_DEFER)

drivers/leds/leds-gpio.c

@@ -182,8 +182,9 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
 			return ERR_PTR(-EINVAL);
 		}
 
-		led.gpiod = devm_get_gpiod_from_child(dev, NULL, child,
-						      GPIOD_ASIS, led.name);
+		led.gpiod = devm_fwnode_get_gpiod_from_child(dev, NULL, child,
+							     GPIOD_ASIS,
+							     led.name);
 		if (IS_ERR(led.gpiod)) {
 			fwnode_handle_put(child);
 			return ERR_CAST(led.gpiod);

drivers/video/fbdev/amba-clcd-nomadik.c

@@ -185,26 +185,26 @@ static void tpg110_init(struct device *dev, struct device_node *np,
 	dev_info(dev, "TPG110 display init\n");
 
 	/* This asserts the GRESTB signal, putting the display into reset */
-	grestb = devm_get_gpiod_from_child(dev, "grestb", &np->fwnode,
-					   GPIOD_OUT_HIGH, "grestb");
+	grestb = devm_fwnode_get_gpiod_from_child(dev, "grestb", &np->fwnode,
+						  GPIOD_OUT_HIGH, "grestb");
 	if (IS_ERR(grestb)) {
 		dev_err(dev, "no GRESTB GPIO\n");
 		return;
 	}
-	scen = devm_get_gpiod_from_child(dev, "scen", &np->fwnode,
-					 GPIOD_OUT_LOW, "scen");
+	scen = devm_fwnode_get_gpiod_from_child(dev, "scen", &np->fwnode,
+						GPIOD_OUT_LOW, "scen");
 	if (IS_ERR(scen)) {
 		dev_err(dev, "no SCEN GPIO\n");
 		return;
 	}
-	scl = devm_get_gpiod_from_child(dev, "scl", &np->fwnode, GPIOD_OUT_LOW,
-					"scl");
+	scl = devm_fwnode_get_gpiod_from_child(dev, "scl", &np->fwnode,
+					       GPIOD_OUT_LOW, "scl");
 	if (IS_ERR(scl)) {
 		dev_err(dev, "no SCL GPIO\n");
 		return;
 	}
-	sda = devm_get_gpiod_from_child(dev, "sda", &np->fwnode, GPIOD_OUT_LOW,
-					"sda");
+	sda = devm_fwnode_get_gpiod_from_child(dev, "sda", &np->fwnode,
+					       GPIOD_OUT_LOW, "sda");
 	if (IS_ERR(sda)) {
 		dev_err(dev, "no SDA GPIO\n");
 		return;

include/linux/gpio/consumer.h

@@ -135,14 +135,14 @@ int desc_to_gpio(const struct gpio_desc *desc);
 struct fwnode_handle;
 
 struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
-					 const char *propname,
+					 const char *propname, int index,
 					 enum gpiod_flags dflags,
 					 const char *label);
-struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
-					    const char *con_id,
-					    struct fwnode_handle *child,
-					    enum gpiod_flags flags,
-					    const char *label);
+struct gpio_desc *devm_fwnode_get_index_gpiod_from_child(struct device *dev,
+						const char *con_id, int index,
+						struct fwnode_handle *child,
+						enum gpiod_flags flags,
+						const char *label);
 #else /* CONFIG_GPIOLIB */
 
 static inline int gpiod_count(struct device *dev, const char *con_id)
@@ -417,25 +417,36 @@ struct fwnode_handle;
 
 static inline
 struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
-					 const char *propname,
+					 const char *propname, int index,
 					 enum gpiod_flags dflags,
 					 const char *label)
 {
 	return ERR_PTR(-ENOSYS);
 }
 
 static inline
-struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
-					    const char *con_id,
-					    struct fwnode_handle *child,
-					    enum gpiod_flags flags,
-					    const char *label)
+struct gpio_desc *devm_fwnode_get_index_gpiod_from_child(struct device *dev,
+						const char *con_id, int index,
+						struct fwnode_handle *child,
+						enum gpiod_flags flags,
+						const char *label)
 {
 	return ERR_PTR(-ENOSYS);
 }
 
 #endif /* CONFIG_GPIOLIB */
 
+static inline
+struct gpio_desc *devm_fwnode_get_gpiod_from_child(struct device *dev,
+						   const char *con_id,
+						   struct fwnode_handle *child,
+						   enum gpiod_flags flags,
+						   const char *label)
+{
+	return devm_fwnode_get_index_gpiod_from_child(dev, con_id, 0, child,
+						      flags, label);
+}
+
 #if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
 
 int gpiod_export(struct gpio_desc *desc, bool direction_may_change);