drivers/of/device.c

1 #include <linux/string.h>
13  * of_match_device - Tell if a struct device matches an of_device_id list
14  * @ids: array of of device match structures to search in
23 	if ((!matches) || (!dev->of_node))  in of_match_device()
25 	return of_match_node(matches, dev->of_node);  in of_match_device()
35 	tmp = get_device(&dev->dev);  in of_dev_get()
46 		put_device(&dev->dev);  in of_dev_put()
52 	BUG_ON(ofdev->dev.of_node == NULL);  in of_device_add()
56 	ofdev->name = dev_name(&ofdev->dev);  in of_device_add()
57 	ofdev->id = -1;  in of_device_add()
62 	if (!ofdev->dev.parent)  in of_device_add()
63 		set_dev_node(&ofdev->dev, of_node_to_nid(ofdev->dev.of_node));  in of_device_add()
65 	return device_add(&ofdev->dev);  in of_device_add()
70 	device_initialize(&pdev->dev);  in of_device_register()
77 	device_unregister(&ofdev->dev);  in of_device_unregister()
88 	csize = snprintf(str, len, "of:N%sT%s", dev->of_node->name,  in of_device_get_modalias()
89 			 dev->of_node->type);  in of_device_get_modalias()
91 	/* Get compatible property if any */  in of_device_get_modalias()
92 	compat = of_get_property(dev->of_node, "compatible", &cplen);  in of_device_get_modalias()
97 	for (i = (cplen - 1); i >= 0 && !compat[i]; i--)  in of_device_get_modalias()
98 		cplen--;  in of_device_get_modalias()
111 		cplen = len - csize - 1;  in of_device_get_modalias()
129  * of_device_uevent - Display OF related uevent information
136 	if ((!dev) || (!dev->of_node))  in of_device_uevent()
137 		return -ENODEV;  in of_device_uevent()
139 	if (add_uevent_var(env, "OF_NAME=%s", dev->of_node->name))  in of_device_uevent()
140 		return -ENOMEM;  in of_device_uevent()
142 	if (add_uevent_var(env, "OF_TYPE=%s", dev->of_node->type))  in of_device_uevent()
143 		return -ENOMEM;  in of_device_uevent()
149 	compat = of_get_property(dev->of_node, "compatible", &cplen);  in of_device_uevent()
152 			return -ENOMEM;  in of_device_uevent()
156 		cplen -= sl;  in of_device_uevent()
161 		return -ENOMEM;  in of_device_uevent()
165 		return -ENOMEM;  in of_device_uevent()
167 	sl = of_device_get_modalias(dev, &env->buf[env->buflen-1],  in of_device_uevent()
168 				    sizeof(env->buf) - env->buflen);  in of_device_uevent()
169 	if (sl >= (sizeof(env->buf) - env->buflen))  in of_device_uevent()
170 		return -ENOMEM;  in of_device_uevent()
171 	env->buflen += sl;  in of_device_uevent()