gpio: sysfs: remove FLAG_SYSFS_DIR
Remove FLAG_SYSFS_DIR, which is sysfs-interface specific, and store it
in the class-device data instead.
Note that the flag is only used during export.
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 06372c7..9047b2d 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -16,6 +16,8 @@
struct mutex mutex;
struct kernfs_node *value_kn;
int irq;
+
+ bool direction_can_change;
};
/*
@@ -354,7 +356,7 @@
struct gpiod_data *data = dev_get_drvdata(dev);
struct gpio_desc *desc = data->desc;
umode_t mode = attr->mode;
- bool show_direction = test_bit(FLAG_SYSFS_DIR, &desc->flags);
+ bool show_direction = data->direction_can_change;
if (attr == &dev_attr_direction.attr) {
if (!show_direction)
@@ -583,12 +585,6 @@
status = -EPERM;
goto err_unlock;
}
-
- if (chip->direction_input && chip->direction_output &&
- direction_may_change) {
- set_bit(FLAG_SYSFS_DIR, &desc->flags);
- }
-
spin_unlock_irqrestore(&gpio_lock, flags);
data = kzalloc(sizeof(*data), GFP_KERNEL);
@@ -599,6 +595,10 @@
data->desc = desc;
mutex_init(&data->mutex);
+ if (chip->direction_input && chip->direction_output)
+ data->direction_can_change = direction_may_change;
+ else
+ data->direction_can_change = false;
offset = gpio_chip_hwgpio(desc);
if (chip->names && chip->names[offset])
@@ -693,7 +693,6 @@
data = dev_get_drvdata(dev);
- clear_bit(FLAG_SYSFS_DIR, &desc->flags);
clear_bit(FLAG_EXPORT, &desc->flags);
device_unregister(dev);