18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
38 		if (of_get_property(par, "scom-controller", NULL))  in scom_find_parent()
40 		p = of_get_property(par, "scom-parent", NULL);  in scom_find_parent()
66 	 * We support "scom-reg" properties for adding scom registers  in scom_map_device()
67 	 * to a random device-tree node with an explicit scom-parent  in scom_map_device()
72 	 * In case both exist, "scom-reg" takes precedence.  in scom_map_device()
74 	prop = of_get_property(dev, "scom-reg", &size);  in scom_map_device()
75 	sprop = of_get_property(parent, "#scom-cells", NULL);  in scom_map_device()
76 	if (!prop && parent == dev->parent) {  in scom_map_device()
78 		sprop = of_get_property(parent, "#address-cells", NULL);  in scom_map_device()
102 	char name[16];  member
108 	struct scom_debug_entry *ent = filp->private_data;  in scom_debug_read()
113 	scom_map_t map;  in scom_debug_read()  local
114 	int rc;  in scom_debug_read()  local
117 		return -EINVAL;  in scom_debug_read()
121 	map = scom_map(ent->dn, reg, reg_cnt);  in scom_debug_read()
122 	if (!scom_map_ok(map))  in scom_debug_read()
123 		return -ENXIO;  in scom_debug_read()
126 		rc = scom_read(map, reg, &val);  in scom_debug_read()
127 		if (!rc)  in scom_debug_read()
128 			rc = put_user(val, ubuf64);  in scom_debug_read()
129 		if (rc) {  in scom_debug_read()
131 				done = rc;  in scom_debug_read()
138 	scom_unmap(map);  in scom_debug_read()
145 	struct scom_debug_entry *ent = filp->private_data;  in scom_debug_write()
150 	scom_map_t map;  in scom_debug_write()  local
151 	int rc;  in scom_debug_write()  local
154 		return -EINVAL;  in scom_debug_write()
158 	map = scom_map(ent->dn, reg, reg_cnt);  in scom_debug_write()
159 	if (!scom_map_ok(map))  in scom_debug_write()
160 		return -ENXIO;  in scom_debug_write()
163 		rc = get_user(val, ubuf64);  in scom_debug_write()
164 		if (!rc)  in scom_debug_write()
165 			rc = scom_write(map, reg,  val);  in scom_debug_write()
166 		if (rc) {  in scom_debug_write()
168 				done = rc;  in scom_debug_write()
174 	scom_unmap(map);  in scom_debug_write()
193 		return -ENOMEM;  in scom_debug_init_one()
195 	ent->dn = of_node_get(dn);  in scom_debug_init_one()
196 	snprintf(ent->name, 16, "%08x", i);  in scom_debug_init_one()
197 	ent->path.data = (void*)kasprintf(GFP_KERNEL, "%pOF", dn);  in scom_debug_init_one()
198 	ent->path.size = strlen((char *)ent->path.data);  in scom_debug_init_one()
200 	dir = debugfs_create_dir(ent->name, root);  in scom_debug_init_one()
203 		kfree(ent->path.data);  in scom_debug_init_one()
205 		return -1;  in scom_debug_init_one()
208 	debugfs_create_blob("devspec", 0400, dir, &ent->path);  in scom_debug_init_one()
218 	int i, rc;  in scom_debug_init()  local
222 		return -1;  in scom_debug_init()
224 	i = rc = 0;  in scom_debug_init()
225 	for_each_node_with_property(dn, "scom-controller") {  in scom_debug_init()
227 		if (id == -1)  in scom_debug_init()
229 		rc |= scom_debug_init_one(root, dn, id);  in scom_debug_init()
233 	return rc;  in scom_debug_init()