#include "gpiolib.h"
-@@ -538,3 +540,73 @@ void of_gpiochip_remove(struct gpio_chip
+@@ -513,3 +515,72 @@ void of_gpiochip_remove(struct gpio_chip
gpiochip_remove_pin_ranges(chip);
of_node_put(chip->of_node);
}
+ { /* sentinel */ }
+};
+
-+static int __init of_gpio_export_probe(struct platform_device *pdev)
++static int of_gpio_export_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *cnp;
+ enum of_gpio_flags of_flags;
+
+ gpio = of_get_gpio_flags(cnp, i, &of_flags);
++ if (!gpio_is_valid(gpio))
++ return gpio;
+
+ if (of_flags == OF_GPIO_ACTIVE_LOW)
+ flags |= GPIOF_ACTIVE_LOW;
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(gpio_export_ids),
+ },
++ .probe = of_gpio_export_probe,
+};
+
-+static int __init of_gpio_export_init(void)
-+{
-+ return platform_driver_probe(&gpio_export_driver, of_gpio_export_probe);
-+}
-+device_initcall(of_gpio_export_init);
++module_platform_driver(gpio_export_driver);
+
+#endif
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
-@@ -126,6 +126,12 @@ static inline int gpio_export(unsigned g
+@@ -127,6 +127,12 @@ static inline int gpio_export(unsigned g
return gpiod_export(gpio_to_desc(gpio), direction_may_change);
}
{
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
-@@ -427,6 +427,7 @@ static inline struct gpio_desc *devm_get
+@@ -451,6 +451,7 @@ struct gpio_desc *devm_fwnode_get_gpiod_
#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
int gpiod_export_link(struct device *dev, const char *name,
struct gpio_desc *desc);
-@@ -434,6 +435,13 @@ void gpiod_unexport(struct gpio_desc *de
+@@ -458,6 +459,13 @@ void gpiod_unexport(struct gpio_desc *de
#else /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
{
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
-@@ -544,7 +544,7 @@ static struct class gpio_class = {
+@@ -553,7 +553,7 @@ static struct class gpio_class = {
*
* Returns zero on success, else an error.
*/
{
struct gpio_chip *chip;
struct gpio_device *gdev;
-@@ -606,6 +606,8 @@ int gpiod_export(struct gpio_desc *desc,
+@@ -615,6 +615,8 @@ int gpiod_export(struct gpio_desc *desc,
offset = gpio_chip_hwgpio(desc);
if (chip->names && chip->names[offset])
ioname = chip->names[offset];
dev = device_create_with_groups(&gpio_class, &gdev->dev,
MKDEV(0, 0), data, gpio_groups,
-@@ -627,6 +629,12 @@ err_unlock:
+@@ -636,6 +638,12 @@ err_unlock:
gpiod_dbg(desc, "%s: status %d\n", __func__, status);
return status;
}