75 	struct gpio_device *gdev;  member
214 	guard(srcu)(&lh->gdev->srcu);  in linehandle_ioctl()
216 	if (!rcu_access_pointer(lh->gdev->chip))  in linehandle_ioctl()
281 	gpio_device_put(lh->gdev);  in linehandle_free()
301 static int linehandle_create(struct gpio_device *gdev, void __user *ip)  in linehandle_create()  argument
323 	lh->gdev = gpio_device_get(gdev);  in linehandle_create()
341 		struct gpio_desc *desc = gpio_device_get_desc(gdev, offset);  in linehandle_create()
376 		dev_dbg(&gdev->dev, "registered chardev handle for line %d\n",  in linehandle_create()
408 	dev_dbg(&gdev->dev, "registered chardev handle for %d lines\n",  in linehandle_create()
525 	struct gpio_device *gdev;  member
1463 	guard(srcu)(&lr->gdev->srcu);  in linereq_ioctl()
1465 	if (!rcu_access_pointer(lr->gdev->chip))  in linereq_ioctl()
1494 	guard(srcu)(&lr->gdev->srcu);  in linereq_poll()
1496 	if (!rcu_access_pointer(lr->gdev->chip))  in linereq_poll()
1516 	guard(srcu)(&lr->gdev->srcu);  in linereq_read()
1518 	if (!rcu_access_pointer(lr->gdev->chip))  in linereq_read()
1563 		blocking_notifier_chain_unregister(&lr->gdev->device_notifier,  in linereq_free()
1574 	gpio_device_put(lr->gdev);  in linereq_free()
1590 	struct device *dev = &lr->gdev->dev;  in linereq_show_fdinfo()
1616 static int linereq_create(struct gpio_device *gdev, void __user *ip)  in linereq_create()  argument
1645 	lr->gdev = gpio_device_get(gdev);  in linereq_create()
1677 		struct gpio_desc *desc = gpio_device_get_desc(gdev, offset);  in linereq_create()
1722 		dev_dbg(&gdev->dev, "registered chardev handle for line %d\n",  in linereq_create()
1727 	ret = blocking_notifier_chain_register(&gdev->device_notifier,  in linereq_create()
1758 	dev_dbg(&gdev->dev, "registered chardev handle for %d lines\n",  in linereq_create()
1791 	struct gpio_device *gdev;  member
1812 	guard(srcu)(&le->gdev->srcu);  in lineevent_poll()
1814 	if (!rcu_access_pointer(le->gdev->chip))  in lineevent_poll()
1850 	guard(srcu)(&le->gdev->srcu);  in lineevent_read()
1852 	if (!rcu_access_pointer(le->gdev->chip))  in lineevent_read()
1908 		blocking_notifier_chain_unregister(&le->gdev->device_notifier,  in lineevent_free()
1915 	gpio_device_put(le->gdev);  in lineevent_free()
1932 	guard(srcu)(&le->gdev->srcu);  in lineevent_ioctl()
1934 	if (!rcu_access_pointer(le->gdev->chip))  in lineevent_ioctl()
2040 static int lineevent_create(struct gpio_device *gdev, void __user *ip)  in lineevent_create()  argument
2061 	desc = gpio_device_get_desc(gdev, offset);  in lineevent_create()
2087 	le->gdev = gpio_device_get(gdev);  in lineevent_create()
2132 	ret = blocking_notifier_chain_register(&gdev->device_notifier,  in lineevent_create()
2257 	scoped_guard(srcu, &desc->gdev->desc_srcu) {  in gpio_desc_to_lineinfo()
2327 	struct gpio_device *gdev;  member
2341 	struct gpio_device *gdev = cdev->gdev;  in chipinfo_get()  local
2346 	strscpy(chipinfo.name, dev_name(&gdev->dev), sizeof(chipinfo.name));  in chipinfo_get()
2347 	strscpy(chipinfo.label, gdev->label, sizeof(chipinfo.label));  in chipinfo_get()
2348 	chipinfo.lines = gdev->ngpio;  in chipinfo_get()
2380 	desc = gpio_device_get_desc(cdev->gdev, lineinfo.line_offset);  in lineinfo_get_v1()
2417 	desc = gpio_device_get_desc(cdev->gdev, lineinfo.offset);  in lineinfo_get()
2447 	if (offset >= cdev->gdev->ngpio)  in lineinfo_unwatch()
2462 	struct gpio_device *gdev = cdev->gdev;  in gpio_ioctl()  local
2465 	guard(srcu)(&gdev->srcu);  in gpio_ioctl()
2468 	if (!rcu_access_pointer(gdev->chip))  in gpio_ioctl()
2477 		return linehandle_create(gdev, ip);  in gpio_ioctl()
2479 		return lineevent_create(gdev, ip);  in gpio_ioctl()
2490 		return linereq_create(gdev, ip);  in gpio_ioctl()
2509 	struct gpio_device *gdev;  member
2527 		scoped_guard(srcu, &ctx->gdev->srcu) {  in lineinfo_changed_func()
2528 			gc = srcu_dereference(ctx->gdev->chip, &ctx->gdev->srcu);  in lineinfo_changed_func()
2542 	gpio_device_put(ctx->gdev);  in lineinfo_changed_func()
2579 	ctx->gdev = gpio_device_get(desc->gdev);  in lineinfo_changed_notify()
2585 	queue_work(ctx->gdev->line_state_wq, &ctx->work);  in lineinfo_changed_notify()
2608 	guard(srcu)(&cdev->gdev->srcu);  in lineinfo_watch_poll()
2610 	if (!rcu_access_pointer(cdev->gdev->chip))  in lineinfo_watch_poll()
2631 	guard(srcu)(&cdev->gdev->srcu);  in lineinfo_watch_read()
2633 	if (!rcu_access_pointer(cdev->gdev->chip))  in lineinfo_watch_read()
2708 	struct gpio_device *gdev = container_of(inode->i_cdev,  in gpio_chrdev_open()  local
2713 	guard(srcu)(&gdev->srcu);  in gpio_chrdev_open()
2716 	if (!rcu_access_pointer(gdev->chip))  in gpio_chrdev_open()
2723 	cdev->watched_lines = bitmap_zalloc(gdev->ngpio, GFP_KERNEL);  in gpio_chrdev_open()
2729 	cdev->gdev = gpio_device_get(gdev);  in gpio_chrdev_open()
2732 	scoped_guard(write_lock_irqsave, &gdev->line_state_lock)  in gpio_chrdev_open()
2733 		ret = raw_notifier_chain_register(&gdev->line_state_notifier,  in gpio_chrdev_open()
2740 	ret = blocking_notifier_chain_register(&gdev->device_notifier,  in gpio_chrdev_open()
2755 	blocking_notifier_chain_unregister(&gdev->device_notifier,  in gpio_chrdev_open()
2758 	scoped_guard(write_lock_irqsave, &gdev->line_state_lock)  in gpio_chrdev_open()
2759 		raw_notifier_chain_unregister(&gdev->line_state_notifier,  in gpio_chrdev_open()
2762 	gpio_device_put(gdev);  in gpio_chrdev_open()
2780 	struct gpio_device *gdev = cdev->gdev;  in gpio_chrdev_release()  local
2782 	blocking_notifier_chain_unregister(&gdev->device_notifier,  in gpio_chrdev_release()
2784 	scoped_guard(write_lock_irqsave, &gdev->line_state_lock)  in gpio_chrdev_release()
2785 		raw_notifier_chain_unregister(&gdev->line_state_notifier,  in gpio_chrdev_release()
2788 	gpio_device_put(gdev);  in gpio_chrdev_release()
2806 int gpiolib_cdev_register(struct gpio_device *gdev, dev_t devt)  in gpiolib_cdev_register()  argument
2811 	cdev_init(&gdev->chrdev, &gpio_fileops);  in gpiolib_cdev_register()
2812 	gdev->chrdev.owner = THIS_MODULE;  in gpiolib_cdev_register()
2813 	gdev->dev.devt = MKDEV(MAJOR(devt), gdev->id);  in gpiolib_cdev_register()
2815 	gdev->line_state_wq = alloc_ordered_workqueue("%s", WQ_HIGHPRI,  in gpiolib_cdev_register()
2816 						      dev_name(&gdev->dev));  in gpiolib_cdev_register()
2817 	if (!gdev->line_state_wq)  in gpiolib_cdev_register()
2820 	ret = cdev_device_add(&gdev->chrdev, &gdev->dev);  in gpiolib_cdev_register()
2824 	guard(srcu)(&gdev->srcu);  in gpiolib_cdev_register()
2825 	gc = srcu_dereference(gdev->chip, &gdev->srcu);  in gpiolib_cdev_register()
2829 	chip_dbg(gc, "added GPIO chardev (%d:%d)\n", MAJOR(devt), gdev->id);  in gpiolib_cdev_register()
2834 void gpiolib_cdev_unregister(struct gpio_device *gdev)  in gpiolib_cdev_unregister()  argument
2836 	destroy_workqueue(gdev->line_state_wq);  in gpiolib_cdev_unregister()
2837 	cdev_device_del(&gdev->chrdev, &gdev->dev);  in gpiolib_cdev_unregister()
2838 	blocking_notifier_call_chain(&gdev->device_notifier, 0, NULL);  in gpiolib_cdev_unregister()