1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * property.h - Unified device property interface. 4 * 5 * Copyright (C) 2014, Intel Corporation 6 * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 7 * Mika Westerberg <mika.westerberg@linux.intel.com> 8 */ 9 10 #ifndef _LINUX_PROPERTY_H_ 11 #define _LINUX_PROPERTY_H_ 12 13 #include <linux/args.h> 14 #include <linux/array_size.h> 15 #include <linux/bits.h> 16 #include <linux/cleanup.h> 17 #include <linux/fwnode.h> 18 #include <linux/stddef.h> 19 #include <linux/types.h> 20 #include <linux/util_macros.h> 21 22 struct device; 23 24 enum dev_prop_type { 25 DEV_PROP_U8, 26 DEV_PROP_U16, 27 DEV_PROP_U32, 28 DEV_PROP_U64, 29 DEV_PROP_STRING, 30 DEV_PROP_REF, 31 }; 32 33 const struct fwnode_handle *__dev_fwnode_const(const struct device *dev); 34 struct fwnode_handle *__dev_fwnode(struct device *dev); 35 #define dev_fwnode(dev) \ 36 _Generic((dev), \ 37 const struct device *: __dev_fwnode_const, \ 38 struct device *: __dev_fwnode)(dev) 39 40 bool device_property_present(const struct device *dev, const char *propname); 41 bool device_property_read_bool(const struct device *dev, const char *propname); 42 int device_property_read_u8_array(const struct device *dev, const char *propname, 43 u8 *val, size_t nval); 44 int device_property_read_u16_array(const struct device *dev, const char *propname, 45 u16 *val, size_t nval); 46 int device_property_read_u32_array(const struct device *dev, const char *propname, 47 u32 *val, size_t nval); 48 int device_property_read_u64_array(const struct device *dev, const char *propname, 49 u64 *val, size_t nval); 50 int device_property_read_string_array(const struct device *dev, const char *propname, 51 const char **val, size_t nval); 52 int device_property_read_string(const struct device *dev, const char *propname, 53 const char **val); 54 int device_property_match_string(const struct device *dev, 55 const char *propname, const char *string); 56 57 bool fwnode_property_present(const struct fwnode_handle *fwnode, 58 const char *propname); 59 bool fwnode_property_read_bool(const struct fwnode_handle *fwnode, 60 const char *propname); 61 int fwnode_property_read_u8_array(const struct fwnode_handle *fwnode, 62 const char *propname, u8 *val, 63 size_t nval); 64 int fwnode_property_read_u16_array(const struct fwnode_handle *fwnode, 65 const char *propname, u16 *val, 66 size_t nval); 67 int fwnode_property_read_u32_array(const struct fwnode_handle *fwnode, 68 const char *propname, u32 *val, 69 size_t nval); 70 int fwnode_property_read_u64_array(const struct fwnode_handle *fwnode, 71 const char *propname, u64 *val, 72 size_t nval); 73 int fwnode_property_read_string_array(const struct fwnode_handle *fwnode, 74 const char *propname, const char **val, 75 size_t nval); 76 int fwnode_property_read_string(const struct fwnode_handle *fwnode, 77 const char *propname, const char **val); 78 int fwnode_property_match_string(const struct fwnode_handle *fwnode, 79 const char *propname, const char *string); 80 81 bool fwnode_device_is_available(const struct fwnode_handle *fwnode); 82 83 static inline bool fwnode_device_is_big_endian(const struct fwnode_handle *fwnode) 84 { 85 if (fwnode_property_present(fwnode, "big-endian")) 86 return true; 87 if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) && 88 fwnode_property_present(fwnode, "native-endian")) 89 return true; 90 return false; 91 } 92 93 static inline 94 bool fwnode_device_is_compatible(const struct fwnode_handle *fwnode, const char *compat) 95 { 96 return fwnode_property_match_string(fwnode, "compatible", compat) >= 0; 97 } 98 99 /** 100 * device_is_big_endian - check if a device has BE registers 101 * @dev: Pointer to the struct device 102 * 103 * Returns: true if the device has a "big-endian" property, or if the kernel 104 * was compiled for BE *and* the device has a "native-endian" property. 105 * Returns false otherwise. 106 * 107 * Callers would nominally use ioread32be/iowrite32be if 108 * device_is_big_endian() == true, or readl/writel otherwise. 109 */ 110 static inline bool device_is_big_endian(const struct device *dev) 111 { 112 return fwnode_device_is_big_endian(dev_fwnode(dev)); 113 } 114 115 /** 116 * device_is_compatible - match 'compatible' property of the device with a given string 117 * @dev: Pointer to the struct device 118 * @compat: The string to match 'compatible' property with 119 * 120 * Returns: true if matches, otherwise false. 121 */ 122 static inline bool device_is_compatible(const struct device *dev, const char *compat) 123 { 124 return fwnode_device_is_compatible(dev_fwnode(dev), compat); 125 } 126 127 int fwnode_property_match_property_string(const struct fwnode_handle *fwnode, 128 const char *propname, 129 const char * const *array, size_t n); 130 131 static inline 132 int device_property_match_property_string(const struct device *dev, 133 const char *propname, 134 const char * const *array, size_t n) 135 { 136 return fwnode_property_match_property_string(dev_fwnode(dev), propname, array, n); 137 } 138 139 int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode, 140 const char *prop, const char *nargs_prop, 141 unsigned int nargs, unsigned int index, 142 struct fwnode_reference_args *args); 143 144 struct fwnode_handle *fwnode_find_reference(const struct fwnode_handle *fwnode, 145 const char *name, 146 unsigned int index); 147 148 const char *fwnode_get_name(const struct fwnode_handle *fwnode); 149 const char *fwnode_get_name_prefix(const struct fwnode_handle *fwnode); 150 bool fwnode_name_eq(const struct fwnode_handle *fwnode, const char *name); 151 152 struct fwnode_handle *fwnode_get_parent(const struct fwnode_handle *fwnode); 153 struct fwnode_handle *fwnode_get_next_parent(struct fwnode_handle *fwnode); 154 155 #define fwnode_for_each_parent_node(fwnode, parent) \ 156 for (parent = fwnode_get_parent(fwnode); parent; \ 157 parent = fwnode_get_next_parent(parent)) 158 159 unsigned int fwnode_count_parents(const struct fwnode_handle *fwn); 160 struct fwnode_handle *fwnode_get_nth_parent(struct fwnode_handle *fwn, 161 unsigned int depth); 162 struct fwnode_handle *fwnode_get_next_child_node( 163 const struct fwnode_handle *fwnode, struct fwnode_handle *child); 164 struct fwnode_handle *fwnode_get_next_available_child_node( 165 const struct fwnode_handle *fwnode, struct fwnode_handle *child); 166 167 #define fwnode_for_each_child_node(fwnode, child) \ 168 for (child = fwnode_get_next_child_node(fwnode, NULL); child; \ 169 child = fwnode_get_next_child_node(fwnode, child)) 170 171 #define fwnode_for_each_named_child_node(fwnode, child, name) \ 172 fwnode_for_each_child_node(fwnode, child) \ 173 for_each_if(fwnode_name_eq(child, name)) 174 175 #define fwnode_for_each_available_child_node(fwnode, child) \ 176 for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\ 177 child = fwnode_get_next_available_child_node(fwnode, child)) 178 179 struct fwnode_handle *device_get_next_child_node(const struct device *dev, 180 struct fwnode_handle *child); 181 182 #define device_for_each_child_node(dev, child) \ 183 for (child = device_get_next_child_node(dev, NULL); child; \ 184 child = device_get_next_child_node(dev, child)) 185 186 #define device_for_each_named_child_node(dev, child, name) \ 187 device_for_each_child_node(dev, child) \ 188 for_each_if(fwnode_name_eq(child, name)) 189 190 #define device_for_each_child_node_scoped(dev, child) \ 191 for (struct fwnode_handle *child __free(fwnode_handle) = \ 192 device_get_next_child_node(dev, NULL); \ 193 child; child = device_get_next_child_node(dev, child)) 194 195 #define device_for_each_named_child_node_scoped(dev, child, name) \ 196 device_for_each_child_node_scoped(dev, child) \ 197 for_each_if(fwnode_name_eq(child, name)) 198 199 struct fwnode_handle *fwnode_get_named_child_node(const struct fwnode_handle *fwnode, 200 const char *childname); 201 struct fwnode_handle *device_get_named_child_node(const struct device *dev, 202 const char *childname); 203 204 struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode); 205 206 /** 207 * fwnode_handle_put - Drop reference to a device node 208 * @fwnode: Pointer to the device node to drop the reference to. 209 * 210 * This has to be used when terminating device_for_each_child_node() iteration 211 * with break or return to prevent stale device node references from being left 212 * behind. 213 */ 214 static inline void fwnode_handle_put(struct fwnode_handle *fwnode) 215 { 216 fwnode_call_void_op(fwnode, put); 217 } 218 219 DEFINE_FREE(fwnode_handle, struct fwnode_handle *, fwnode_handle_put(_T)) 220 221 int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index); 222 int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name); 223 224 unsigned int fwnode_get_child_node_count(const struct fwnode_handle *fwnode); 225 226 static inline unsigned int device_get_child_node_count(const struct device *dev) 227 { 228 return fwnode_get_child_node_count(dev_fwnode(dev)); 229 } 230 231 unsigned int fwnode_get_named_child_node_count(const struct fwnode_handle *fwnode, 232 const char *name); 233 static inline unsigned int device_get_named_child_node_count(const struct device *dev, 234 const char *name) 235 { 236 return fwnode_get_named_child_node_count(dev_fwnode(dev), name); 237 } 238 239 static inline int device_property_read_u8(const struct device *dev, 240 const char *propname, u8 *val) 241 { 242 return device_property_read_u8_array(dev, propname, val, 1); 243 } 244 245 static inline int device_property_read_u16(const struct device *dev, 246 const char *propname, u16 *val) 247 { 248 return device_property_read_u16_array(dev, propname, val, 1); 249 } 250 251 static inline int device_property_read_u32(const struct device *dev, 252 const char *propname, u32 *val) 253 { 254 return device_property_read_u32_array(dev, propname, val, 1); 255 } 256 257 static inline int device_property_read_u64(const struct device *dev, 258 const char *propname, u64 *val) 259 { 260 return device_property_read_u64_array(dev, propname, val, 1); 261 } 262 263 static inline int device_property_count_u8(const struct device *dev, const char *propname) 264 { 265 return device_property_read_u8_array(dev, propname, NULL, 0); 266 } 267 268 static inline int device_property_count_u16(const struct device *dev, const char *propname) 269 { 270 return device_property_read_u16_array(dev, propname, NULL, 0); 271 } 272 273 static inline int device_property_count_u32(const struct device *dev, const char *propname) 274 { 275 return device_property_read_u32_array(dev, propname, NULL, 0); 276 } 277 278 static inline int device_property_count_u64(const struct device *dev, const char *propname) 279 { 280 return device_property_read_u64_array(dev, propname, NULL, 0); 281 } 282 283 static inline int device_property_string_array_count(const struct device *dev, 284 const char *propname) 285 { 286 return device_property_read_string_array(dev, propname, NULL, 0); 287 } 288 289 static inline int fwnode_property_read_u8(const struct fwnode_handle *fwnode, 290 const char *propname, u8 *val) 291 { 292 return fwnode_property_read_u8_array(fwnode, propname, val, 1); 293 } 294 295 static inline int fwnode_property_read_u16(const struct fwnode_handle *fwnode, 296 const char *propname, u16 *val) 297 { 298 return fwnode_property_read_u16_array(fwnode, propname, val, 1); 299 } 300 301 static inline int fwnode_property_read_u32(const struct fwnode_handle *fwnode, 302 const char *propname, u32 *val) 303 { 304 return fwnode_property_read_u32_array(fwnode, propname, val, 1); 305 } 306 307 static inline int fwnode_property_read_u64(const struct fwnode_handle *fwnode, 308 const char *propname, u64 *val) 309 { 310 return fwnode_property_read_u64_array(fwnode, propname, val, 1); 311 } 312 313 static inline int fwnode_property_count_u8(const struct fwnode_handle *fwnode, 314 const char *propname) 315 { 316 return fwnode_property_read_u8_array(fwnode, propname, NULL, 0); 317 } 318 319 static inline int fwnode_property_count_u16(const struct fwnode_handle *fwnode, 320 const char *propname) 321 { 322 return fwnode_property_read_u16_array(fwnode, propname, NULL, 0); 323 } 324 325 static inline int fwnode_property_count_u32(const struct fwnode_handle *fwnode, 326 const char *propname) 327 { 328 return fwnode_property_read_u32_array(fwnode, propname, NULL, 0); 329 } 330 331 static inline int fwnode_property_count_u64(const struct fwnode_handle *fwnode, 332 const char *propname) 333 { 334 return fwnode_property_read_u64_array(fwnode, propname, NULL, 0); 335 } 336 337 static inline int 338 fwnode_property_string_array_count(const struct fwnode_handle *fwnode, 339 const char *propname) 340 { 341 return fwnode_property_read_string_array(fwnode, propname, NULL, 0); 342 } 343 344 struct software_node; 345 346 /** 347 * struct software_node_ref_args - Reference property with additional arguments 348 * @node: Reference to a software node 349 * @nargs: Number of elements in @args array 350 * @args: Integer arguments 351 */ 352 struct software_node_ref_args { 353 const struct software_node *node; 354 unsigned int nargs; 355 u64 args[NR_FWNODE_REFERENCE_ARGS]; 356 }; 357 358 #define SOFTWARE_NODE_REFERENCE(_ref_, ...) \ 359 (const struct software_node_ref_args) { \ 360 .node = _ref_, \ 361 .nargs = COUNT_ARGS(__VA_ARGS__), \ 362 .args = { __VA_ARGS__ }, \ 363 } 364 365 /** 366 * struct property_entry - "Built-in" device property representation. 367 * @name: Name of the property. 368 * @length: Length of data making up the value. 369 * @is_inline: True when the property value is stored inline. 370 * @type: Type of the data in unions. 371 * @pointer: Pointer to the property when it is not stored inline. 372 * @value: Value of the property when it is stored inline. 373 */ 374 struct property_entry { 375 const char *name; 376 size_t length; 377 bool is_inline; 378 enum dev_prop_type type; 379 union { 380 const void *pointer; 381 union { 382 u8 u8_data[sizeof(u64) / sizeof(u8)]; 383 u16 u16_data[sizeof(u64) / sizeof(u16)]; 384 u32 u32_data[sizeof(u64) / sizeof(u32)]; 385 u64 u64_data[sizeof(u64) / sizeof(u64)]; 386 const char *str[sizeof(u64) / sizeof(char *)]; 387 } value; 388 }; 389 }; 390 391 /* 392 * Note: the below initializers for the anonymous union are carefully 393 * crafted to avoid gcc-4.4.4's problems with initialization of anon unions 394 * and structs. 395 */ 396 #define __PROPERTY_ENTRY_ARRAY_LEN(_name_, _elem_, _Type_, _val_, _len_) \ 397 (struct property_entry) { \ 398 .name = _name_, \ 399 .length = (_len_) * sizeof_field(struct property_entry, value._elem_[0]), \ 400 .type = DEV_PROP_##_Type_, \ 401 { .pointer = _val_ }, \ 402 } 403 404 #define PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, _len_) \ 405 __PROPERTY_ENTRY_ARRAY_LEN(_name_, u8_data, U8, _val_, _len_) 406 #define PROPERTY_ENTRY_U16_ARRAY_LEN(_name_, _val_, _len_) \ 407 __PROPERTY_ENTRY_ARRAY_LEN(_name_, u16_data, U16, _val_, _len_) 408 #define PROPERTY_ENTRY_U32_ARRAY_LEN(_name_, _val_, _len_) \ 409 __PROPERTY_ENTRY_ARRAY_LEN(_name_, u32_data, U32, _val_, _len_) 410 #define PROPERTY_ENTRY_U64_ARRAY_LEN(_name_, _val_, _len_) \ 411 __PROPERTY_ENTRY_ARRAY_LEN(_name_, u64_data, U64, _val_, _len_) 412 #define PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, _len_) \ 413 __PROPERTY_ENTRY_ARRAY_LEN(_name_, str, STRING, _val_, _len_) 414 415 #define PROPERTY_ENTRY_REF_ARRAY_LEN(_name_, _val_, _len_) \ 416 (struct property_entry) { \ 417 .name = _name_, \ 418 .length = (_len_) * sizeof(struct software_node_ref_args), \ 419 .type = DEV_PROP_REF, \ 420 { .pointer = _val_ }, \ 421 } 422 423 #define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_) \ 424 PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) 425 #define PROPERTY_ENTRY_U16_ARRAY(_name_, _val_) \ 426 PROPERTY_ENTRY_U16_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) 427 #define PROPERTY_ENTRY_U32_ARRAY(_name_, _val_) \ 428 PROPERTY_ENTRY_U32_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) 429 #define PROPERTY_ENTRY_U64_ARRAY(_name_, _val_) \ 430 PROPERTY_ENTRY_U64_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) 431 #define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_) \ 432 PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) 433 #define PROPERTY_ENTRY_REF_ARRAY(_name_, _val_) \ 434 PROPERTY_ENTRY_REF_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_)) 435 436 #define __PROPERTY_ENTRY_ELEMENT(_name_, _elem_, _Type_, _val_) \ 437 (struct property_entry) { \ 438 .name = _name_, \ 439 .length = sizeof_field(struct property_entry, value._elem_[0]), \ 440 .is_inline = true, \ 441 .type = DEV_PROP_##_Type_, \ 442 { .value = { ._elem_[0] = _val_ } }, \ 443 } 444 445 #define PROPERTY_ENTRY_U8(_name_, _val_) \ 446 __PROPERTY_ENTRY_ELEMENT(_name_, u8_data, U8, _val_) 447 #define PROPERTY_ENTRY_U16(_name_, _val_) \ 448 __PROPERTY_ENTRY_ELEMENT(_name_, u16_data, U16, _val_) 449 #define PROPERTY_ENTRY_U32(_name_, _val_) \ 450 __PROPERTY_ENTRY_ELEMENT(_name_, u32_data, U32, _val_) 451 #define PROPERTY_ENTRY_U64(_name_, _val_) \ 452 __PROPERTY_ENTRY_ELEMENT(_name_, u64_data, U64, _val_) 453 #define PROPERTY_ENTRY_STRING(_name_, _val_) \ 454 __PROPERTY_ENTRY_ELEMENT(_name_, str, STRING, _val_) 455 456 #define PROPERTY_ENTRY_REF(_name_, _ref_, ...) \ 457 (struct property_entry) { \ 458 .name = _name_, \ 459 .length = sizeof(struct software_node_ref_args), \ 460 .type = DEV_PROP_REF, \ 461 { .pointer = &SOFTWARE_NODE_REFERENCE(_ref_, ##__VA_ARGS__), }, \ 462 } 463 464 #define PROPERTY_ENTRY_BOOL(_name_) \ 465 (struct property_entry) { \ 466 .name = _name_, \ 467 .is_inline = true, \ 468 } 469 470 struct property_entry * 471 property_entries_dup(const struct property_entry *properties); 472 void property_entries_free(const struct property_entry *properties); 473 474 bool device_dma_supported(const struct device *dev); 475 enum dev_dma_attr device_get_dma_attr(const struct device *dev); 476 477 const void *device_get_match_data(const struct device *dev); 478 479 int device_get_phy_mode(struct device *dev); 480 int fwnode_get_phy_mode(const struct fwnode_handle *fwnode); 481 482 void __iomem *fwnode_iomap(struct fwnode_handle *fwnode, int index); 483 484 struct fwnode_handle *fwnode_graph_get_next_endpoint( 485 const struct fwnode_handle *fwnode, struct fwnode_handle *prev); 486 struct fwnode_handle * 487 fwnode_graph_get_port_parent(const struct fwnode_handle *fwnode); 488 struct fwnode_handle *fwnode_graph_get_remote_port_parent( 489 const struct fwnode_handle *fwnode); 490 struct fwnode_handle *fwnode_graph_get_remote_port( 491 const struct fwnode_handle *fwnode); 492 struct fwnode_handle *fwnode_graph_get_remote_endpoint( 493 const struct fwnode_handle *fwnode); 494 495 static inline bool fwnode_graph_is_endpoint(const struct fwnode_handle *fwnode) 496 { 497 return fwnode_property_present(fwnode, "remote-endpoint"); 498 } 499 500 /* 501 * Fwnode lookup flags 502 * 503 * @FWNODE_GRAPH_ENDPOINT_NEXT: In the case of no exact match, look for the 504 * closest endpoint ID greater than the specified 505 * one. 506 * @FWNODE_GRAPH_DEVICE_DISABLED: That the device to which the remote 507 * endpoint of the given endpoint belongs to, 508 * may be disabled, or that the endpoint is not 509 * connected. 510 */ 511 #define FWNODE_GRAPH_ENDPOINT_NEXT BIT(0) 512 #define FWNODE_GRAPH_DEVICE_DISABLED BIT(1) 513 514 struct fwnode_handle * 515 fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode, 516 u32 port, u32 endpoint, unsigned long flags); 517 unsigned int fwnode_graph_get_endpoint_count(const struct fwnode_handle *fwnode, 518 unsigned long flags); 519 520 #define fwnode_graph_for_each_endpoint(fwnode, child) \ 521 for (child = fwnode_graph_get_next_endpoint(fwnode, NULL); child; \ 522 child = fwnode_graph_get_next_endpoint(fwnode, child)) 523 524 int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, 525 struct fwnode_endpoint *endpoint); 526 527 typedef void *(*devcon_match_fn_t)(const struct fwnode_handle *fwnode, const char *id, 528 void *data); 529 530 void *fwnode_connection_find_match(const struct fwnode_handle *fwnode, 531 const char *con_id, void *data, 532 devcon_match_fn_t match); 533 534 static inline void *device_connection_find_match(const struct device *dev, 535 const char *con_id, void *data, 536 devcon_match_fn_t match) 537 { 538 return fwnode_connection_find_match(dev_fwnode(dev), con_id, data, match); 539 } 540 541 int fwnode_connection_find_matches(const struct fwnode_handle *fwnode, 542 const char *con_id, void *data, 543 devcon_match_fn_t match, 544 void **matches, unsigned int matches_len); 545 546 /* -------------------------------------------------------------------------- */ 547 /* Software fwnode support - when HW description is incomplete or missing */ 548 549 /** 550 * struct software_node - Software node description 551 * @name: Name of the software node 552 * @parent: Parent of the software node 553 * @properties: Array of device properties 554 */ 555 struct software_node { 556 const char *name; 557 const struct software_node *parent; 558 const struct property_entry *properties; 559 }; 560 561 #define SOFTWARE_NODE(_name_, _properties_, _parent_) \ 562 (struct software_node) { \ 563 .name = _name_, \ 564 .properties = _properties_, \ 565 .parent = _parent_, \ 566 } 567 568 bool is_software_node(const struct fwnode_handle *fwnode); 569 const struct software_node * 570 to_software_node(const struct fwnode_handle *fwnode); 571 struct fwnode_handle *software_node_fwnode(const struct software_node *node); 572 573 const struct software_node * 574 software_node_find_by_name(const struct software_node *parent, 575 const char *name); 576 577 int software_node_register_node_group(const struct software_node **node_group); 578 void software_node_unregister_node_group(const struct software_node **node_group); 579 580 int software_node_register(const struct software_node *node); 581 void software_node_unregister(const struct software_node *node); 582 583 struct fwnode_handle * 584 fwnode_create_software_node(const struct property_entry *properties, 585 const struct fwnode_handle *parent); 586 void fwnode_remove_software_node(struct fwnode_handle *fwnode); 587 588 int device_add_software_node(struct device *dev, const struct software_node *node); 589 void device_remove_software_node(struct device *dev); 590 591 int device_create_managed_software_node(struct device *dev, 592 const struct property_entry *properties, 593 const struct software_node *parent); 594 595 #endif /* _LINUX_PROPERTY_H_ */ 596