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path: root/drivers/gpio/gpiolib.c
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Diffstat (limited to 'drivers/gpio/gpiolib.c')
-rw-r--r--drivers/gpio/gpiolib.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 42fb2fd24c0c..83c3fe3a136b 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -438,6 +438,7 @@ int gpio_export(unsigned gpio, bool direction_may_change)
unsigned long flags;
struct gpio_desc *desc;
int status = -EINVAL;
+ char *ioname = NULL;
/* can't export until sysfs is available ... */
if (!gpio_class.p) {
@@ -461,11 +462,14 @@ int gpio_export(unsigned gpio, bool direction_may_change)
}
spin_unlock_irqrestore(&gpio_lock, flags);
+ if (desc->chip->names && desc->chip->names[gpio - desc->chip->base])
+ ioname = desc->chip->names[gpio - desc->chip->base];
+
if (status == 0) {
struct device *dev;
dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0),
- desc, "gpio%d", gpio);
+ desc, ioname ? ioname : "gpio%d", gpio);
if (dev) {
if (direction_may_change)
status = sysfs_create_group(&dev->kobj,
@@ -513,6 +517,7 @@ void gpio_unexport(unsigned gpio)
mutex_lock(&sysfs_lock);
desc = &gpio_desc[gpio];
+
if (test_bit(FLAG_EXPORT, &desc->flags)) {
struct device *dev = NULL;