diff options
Diffstat (limited to 'drivers/gpio/gpiolib-sysfs.c')
| -rw-r--r-- | drivers/gpio/gpiolib-sysfs.c | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index cd27bf173dec..530dfd19d7b5 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -1,18 +1,29 @@ // SPDX-License-Identifier: GPL-2.0 + +#include <linux/bitops.h> +#include <linux/device.h> #include <linux/idr.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kdev_t.h> +#include <linux/kstrtox.h> +#include <linux/list.h> #include <linux/mutex.h> -#include <linux/device.h> +#include <linux/printk.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/string.h> #include <linux/sysfs.h> +#include <linux/types.h> + #include <linux/gpio/consumer.h> #include <linux/gpio/driver.h> -#include <linux/interrupt.h> -#include <linux/kdev_t.h> -#include <linux/slab.h> -#include <linux/ctype.h> #include "gpiolib.h" #include "gpiolib-sysfs.h" +struct kernfs_node; + #define GPIO_IRQF_TRIGGER_NONE 0 #define GPIO_IRQF_TRIGGER_FALLING BIT(0) #define GPIO_IRQF_TRIGGER_RISING BIT(1) @@ -426,8 +437,8 @@ ATTRIBUTE_GROUPS(gpiochip); * /sys/class/gpio/unexport ... write-only * integer N ... number of GPIO to unexport */ -static ssize_t export_store(struct class *class, - struct class_attribute *attr, +static ssize_t export_store(const struct class *class, + const struct class_attribute *attr, const char *buf, size_t len) { long gpio; @@ -478,8 +489,8 @@ done: } static CLASS_ATTR_WO(export); -static ssize_t unexport_store(struct class *class, - struct class_attribute *attr, +static ssize_t unexport_store(const struct class *class, + const struct class_attribute *attr, const char *buf, size_t len) { long gpio; @@ -491,7 +502,7 @@ static ssize_t unexport_store(struct class *class, goto done; desc = gpio_to_desc(gpio); - /* reject bogus commands (gpio_unexport ignores them) */ + /* reject bogus commands (gpiod_unexport() ignores them) */ if (!desc) { pr_warn("%s: invalid GPIO %ld\n", __func__, gpio); return -EINVAL; @@ -523,8 +534,6 @@ ATTRIBUTE_GROUPS(gpio_class); static struct class gpio_class = { .name = "gpio", - .owner = THIS_MODULE, - .class_groups = gpio_class_groups, }; @@ -556,7 +565,7 @@ int gpiod_export(struct gpio_desc *desc, bool direction_may_change) int offset; /* can't export until sysfs is available ... */ - if (!gpio_class.p) { + if (!class_is_registered(&gpio_class)) { pr_debug("%s: called too early!\n", __func__); return -ENOENT; } @@ -730,7 +739,7 @@ int gpiochip_sysfs_register(struct gpio_device *gdev) * register later, in gpiolib_sysfs_init() ... here we just * verify that _some_ field of gpio_class got initialized. */ - if (!gpio_class.p) + if (!class_is_registered(&gpio_class)) return 0; /* @@ -790,7 +799,7 @@ static int __init gpiolib_sysfs_init(void) * early (e.g. before the class_register above was called). * * We run before arch_initcall() so chip->dev nodes can have - * registered, and so arch_initcall() can always gpio_export(). + * registered, and so arch_initcall() can always gpiod_export(). */ spin_lock_irqsave(&gpio_lock, flags); list_for_each_entry(gdev, &gpio_devices, list) { |