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Commit | Line | Data |
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6494d708 SG |
1 | /* |
2 | * Device manager | |
3 | * | |
4 | * Copyright (c) 2013 Google, Inc | |
5 | * | |
6 | * (C) Copyright 2012 | |
7 | * Pavel Herrmann <morpheus.ibis@gmail.com> | |
8 | * | |
9 | * SPDX-License-Identifier: GPL-2.0+ | |
10 | */ | |
11 | ||
12 | #include <common.h> | |
5a66a8ff | 13 | #include <fdtdec.h> |
6494d708 SG |
14 | #include <malloc.h> |
15 | #include <dm/device.h> | |
16 | #include <dm/device-internal.h> | |
17 | #include <dm/lists.h> | |
18 | #include <dm/platdata.h> | |
19 | #include <dm/uclass.h> | |
20 | #include <dm/uclass-internal.h> | |
21 | #include <dm/util.h> | |
22 | #include <linux/err.h> | |
23 | #include <linux/list.h> | |
24 | ||
5a66a8ff SG |
25 | DECLARE_GLOBAL_DATA_PTR; |
26 | ||
3479253d SG |
27 | int device_bind(struct udevice *parent, const struct driver *drv, |
28 | const char *name, void *platdata, int of_offset, | |
29 | struct udevice **devp) | |
6494d708 | 30 | { |
54c5d08a | 31 | struct udevice *dev; |
6494d708 | 32 | struct uclass *uc; |
5eaed880 | 33 | int size, ret = 0; |
6494d708 SG |
34 | |
35 | *devp = NULL; | |
36 | if (!name) | |
37 | return -EINVAL; | |
38 | ||
39 | ret = uclass_get(drv->id, &uc); | |
40 | if (ret) | |
41 | return ret; | |
42 | ||
54c5d08a | 43 | dev = calloc(1, sizeof(struct udevice)); |
6494d708 SG |
44 | if (!dev) |
45 | return -ENOMEM; | |
46 | ||
47 | INIT_LIST_HEAD(&dev->sibling_node); | |
48 | INIT_LIST_HEAD(&dev->child_head); | |
49 | INIT_LIST_HEAD(&dev->uclass_node); | |
e2282d70 | 50 | #ifdef CONFIG_DEVRES |
608f26c5 | 51 | INIT_LIST_HEAD(&dev->devres_head); |
e2282d70 | 52 | #endif |
6494d708 SG |
53 | dev->platdata = platdata; |
54 | dev->name = name; | |
55 | dev->of_offset = of_offset; | |
56 | dev->parent = parent; | |
57 | dev->driver = drv; | |
58 | dev->uclass = uc; | |
5a66a8ff | 59 | |
5a66a8ff | 60 | dev->seq = -1; |
9cc36a2b | 61 | dev->req_seq = -1; |
0f925822 | 62 | if (CONFIG_IS_ENABLED(OF_CONTROL) && IS_ENABLED(CONFIG_DM_SEQ_ALIAS)) { |
36fa61dc SG |
63 | /* |
64 | * Some devices, such as a SPI bus, I2C bus and serial ports | |
65 | * are numbered using aliases. | |
66 | * | |
67 | * This is just a 'requested' sequence, and will be | |
68 | * resolved (and ->seq updated) when the device is probed. | |
69 | */ | |
70 | if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) { | |
71 | if (uc->uc_drv->name && of_offset != -1) { | |
72 | fdtdec_get_alias_seq(gd->fdt_blob, | |
73 | uc->uc_drv->name, of_offset, | |
74 | &dev->req_seq); | |
75 | } | |
9cc36a2b | 76 | } |
5a66a8ff | 77 | } |
36fa61dc | 78 | |
f8a85449 | 79 | if (!dev->platdata && drv->platdata_auto_alloc_size) { |
6494d708 | 80 | dev->flags |= DM_FLAG_ALLOC_PDATA; |
f8a85449 SG |
81 | dev->platdata = calloc(1, drv->platdata_auto_alloc_size); |
82 | if (!dev->platdata) { | |
83 | ret = -ENOMEM; | |
84 | goto fail_alloc1; | |
85 | } | |
86 | } | |
cdc133bd | 87 | |
5eaed880 PM |
88 | size = uc->uc_drv->per_device_platdata_auto_alloc_size; |
89 | if (size) { | |
90 | dev->flags |= DM_FLAG_ALLOC_UCLASS_PDATA; | |
91 | dev->uclass_platdata = calloc(1, size); | |
92 | if (!dev->uclass_platdata) { | |
93 | ret = -ENOMEM; | |
94 | goto fail_alloc2; | |
95 | } | |
96 | } | |
97 | ||
98 | if (parent) { | |
99 | size = parent->driver->per_child_platdata_auto_alloc_size; | |
ba8da9dc SG |
100 | if (!size) { |
101 | size = parent->uclass->uc_drv-> | |
102 | per_child_platdata_auto_alloc_size; | |
103 | } | |
cdc133bd SG |
104 | if (size) { |
105 | dev->flags |= DM_FLAG_ALLOC_PARENT_PDATA; | |
106 | dev->parent_platdata = calloc(1, size); | |
107 | if (!dev->parent_platdata) { | |
108 | ret = -ENOMEM; | |
5eaed880 | 109 | goto fail_alloc3; |
cdc133bd SG |
110 | } |
111 | } | |
112 | } | |
6494d708 SG |
113 | |
114 | /* put dev into parent's successor list */ | |
115 | if (parent) | |
116 | list_add_tail(&dev->sibling_node, &parent->child_head); | |
117 | ||
118 | ret = uclass_bind_device(dev); | |
119 | if (ret) | |
72ebfe86 | 120 | goto fail_uclass_bind; |
6494d708 SG |
121 | |
122 | /* if we fail to bind we remove device from successors and free it */ | |
123 | if (drv->bind) { | |
124 | ret = drv->bind(dev); | |
72ebfe86 | 125 | if (ret) |
6494d708 | 126 | goto fail_bind; |
6494d708 | 127 | } |
0118ce79 SG |
128 | if (parent && parent->driver->child_post_bind) { |
129 | ret = parent->driver->child_post_bind(dev); | |
130 | if (ret) | |
131 | goto fail_child_post_bind; | |
132 | } | |
133 | ||
6494d708 SG |
134 | if (parent) |
135 | dm_dbg("Bound device %s to %s\n", dev->name, parent->name); | |
136 | *devp = dev; | |
137 | ||
aed1a4dd MY |
138 | dev->flags |= DM_FLAG_BOUND; |
139 | ||
6494d708 SG |
140 | return 0; |
141 | ||
0118ce79 | 142 | fail_child_post_bind: |
0a5804b5 | 143 | if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) { |
5a87c417 SG |
144 | if (drv->unbind && drv->unbind(dev)) { |
145 | dm_warn("unbind() method failed on dev '%s' on error path\n", | |
146 | dev->name); | |
147 | } | |
0118ce79 SG |
148 | } |
149 | ||
6494d708 | 150 | fail_bind: |
0a5804b5 | 151 | if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) { |
5a87c417 SG |
152 | if (uclass_unbind_device(dev)) { |
153 | dm_warn("Failed to unbind dev '%s' on error path\n", | |
154 | dev->name); | |
155 | } | |
72ebfe86 SG |
156 | } |
157 | fail_uclass_bind: | |
0a5804b5 | 158 | if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) { |
5a87c417 SG |
159 | list_del(&dev->sibling_node); |
160 | if (dev->flags & DM_FLAG_ALLOC_PARENT_PDATA) { | |
161 | free(dev->parent_platdata); | |
162 | dev->parent_platdata = NULL; | |
163 | } | |
cdc133bd | 164 | } |
5eaed880 PM |
165 | fail_alloc3: |
166 | if (dev->flags & DM_FLAG_ALLOC_UCLASS_PDATA) { | |
167 | free(dev->uclass_platdata); | |
168 | dev->uclass_platdata = NULL; | |
169 | } | |
cdc133bd | 170 | fail_alloc2: |
f8a85449 SG |
171 | if (dev->flags & DM_FLAG_ALLOC_PDATA) { |
172 | free(dev->platdata); | |
173 | dev->platdata = NULL; | |
174 | } | |
175 | fail_alloc1: | |
608f26c5 MY |
176 | devres_release_all(dev); |
177 | ||
6494d708 | 178 | free(dev); |
72ebfe86 | 179 | |
6494d708 SG |
180 | return ret; |
181 | } | |
182 | ||
00606d7e SG |
183 | int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, |
184 | const struct driver_info *info, struct udevice **devp) | |
6494d708 SG |
185 | { |
186 | struct driver *drv; | |
187 | ||
188 | drv = lists_driver_lookup_name(info->name); | |
189 | if (!drv) | |
190 | return -ENOENT; | |
00606d7e SG |
191 | if (pre_reloc_only && !(drv->flags & DM_FLAG_PRE_RELOC)) |
192 | return -EPERM; | |
6494d708 SG |
193 | |
194 | return device_bind(parent, drv, info->name, (void *)info->platdata, | |
195 | -1, devp); | |
196 | } | |
197 | ||
2c03c463 SG |
198 | static void *alloc_priv(int size, uint flags) |
199 | { | |
200 | void *priv; | |
201 | ||
202 | if (flags & DM_FLAG_ALLOC_PRIV_DMA) { | |
203 | priv = memalign(ARCH_DMA_MINALIGN, size); | |
204 | if (priv) | |
205 | memset(priv, '\0', size); | |
206 | } else { | |
207 | priv = calloc(1, size); | |
208 | } | |
209 | ||
210 | return priv; | |
211 | } | |
212 | ||
accd4b19 | 213 | int device_probe_child(struct udevice *dev, void *parent_priv) |
6494d708 | 214 | { |
3479253d | 215 | const struct driver *drv; |
6494d708 SG |
216 | int size = 0; |
217 | int ret; | |
5a66a8ff | 218 | int seq; |
6494d708 SG |
219 | |
220 | if (!dev) | |
221 | return -EINVAL; | |
222 | ||
223 | if (dev->flags & DM_FLAG_ACTIVATED) | |
224 | return 0; | |
225 | ||
226 | drv = dev->driver; | |
227 | assert(drv); | |
228 | ||
f8a85449 | 229 | /* Allocate private data if requested */ |
6494d708 | 230 | if (drv->priv_auto_alloc_size) { |
2c03c463 | 231 | dev->priv = alloc_priv(drv->priv_auto_alloc_size, drv->flags); |
6494d708 SG |
232 | if (!dev->priv) { |
233 | ret = -ENOMEM; | |
234 | goto fail; | |
235 | } | |
236 | } | |
237 | /* Allocate private data if requested */ | |
6494d708 SG |
238 | size = dev->uclass->uc_drv->per_device_auto_alloc_size; |
239 | if (size) { | |
240 | dev->uclass_priv = calloc(1, size); | |
241 | if (!dev->uclass_priv) { | |
242 | ret = -ENOMEM; | |
243 | goto fail; | |
244 | } | |
245 | } | |
246 | ||
247 | /* Ensure all parents are probed */ | |
248 | if (dev->parent) { | |
e59f458d | 249 | size = dev->parent->driver->per_child_auto_alloc_size; |
dac8db2c SG |
250 | if (!size) { |
251 | size = dev->parent->uclass->uc_drv-> | |
252 | per_child_auto_alloc_size; | |
253 | } | |
e59f458d | 254 | if (size) { |
2c03c463 | 255 | dev->parent_priv = alloc_priv(size, drv->flags); |
e59f458d SG |
256 | if (!dev->parent_priv) { |
257 | ret = -ENOMEM; | |
258 | goto fail; | |
259 | } | |
accd4b19 SG |
260 | if (parent_priv) |
261 | memcpy(dev->parent_priv, parent_priv, size); | |
e59f458d SG |
262 | } |
263 | ||
6494d708 SG |
264 | ret = device_probe(dev->parent); |
265 | if (ret) | |
266 | goto fail; | |
267 | } | |
268 | ||
5a66a8ff SG |
269 | seq = uclass_resolve_seq(dev); |
270 | if (seq < 0) { | |
271 | ret = seq; | |
272 | goto fail; | |
273 | } | |
274 | dev->seq = seq; | |
275 | ||
206d4d2b SG |
276 | dev->flags |= DM_FLAG_ACTIVATED; |
277 | ||
02c07b37 | 278 | ret = uclass_pre_probe_device(dev); |
83c7e434 SG |
279 | if (ret) |
280 | goto fail; | |
281 | ||
a327dee0 SG |
282 | if (dev->parent && dev->parent->driver->child_pre_probe) { |
283 | ret = dev->parent->driver->child_pre_probe(dev); | |
284 | if (ret) | |
285 | goto fail; | |
286 | } | |
287 | ||
6494d708 SG |
288 | if (drv->ofdata_to_platdata && dev->of_offset >= 0) { |
289 | ret = drv->ofdata_to_platdata(dev); | |
290 | if (ret) | |
291 | goto fail; | |
292 | } | |
293 | ||
294 | if (drv->probe) { | |
295 | ret = drv->probe(dev); | |
02eeb1bb SG |
296 | if (ret) { |
297 | dev->flags &= ~DM_FLAG_ACTIVATED; | |
6494d708 | 298 | goto fail; |
02eeb1bb | 299 | } |
6494d708 SG |
300 | } |
301 | ||
6494d708 | 302 | ret = uclass_post_probe_device(dev); |
206d4d2b | 303 | if (ret) |
6494d708 | 304 | goto fail_uclass; |
6494d708 SG |
305 | |
306 | return 0; | |
307 | fail_uclass: | |
308 | if (device_remove(dev)) { | |
309 | dm_warn("%s: Device '%s' failed to remove on error path\n", | |
310 | __func__, dev->name); | |
311 | } | |
312 | fail: | |
206d4d2b SG |
313 | dev->flags &= ~DM_FLAG_ACTIVATED; |
314 | ||
5a66a8ff | 315 | dev->seq = -1; |
6494d708 SG |
316 | device_free(dev); |
317 | ||
318 | return ret; | |
319 | } | |
320 | ||
accd4b19 SG |
321 | int device_probe(struct udevice *dev) |
322 | { | |
323 | return device_probe_child(dev, NULL); | |
324 | } | |
325 | ||
54c5d08a | 326 | void *dev_get_platdata(struct udevice *dev) |
6494d708 SG |
327 | { |
328 | if (!dev) { | |
964d153c | 329 | dm_warn("%s: null device\n", __func__); |
6494d708 SG |
330 | return NULL; |
331 | } | |
332 | ||
333 | return dev->platdata; | |
334 | } | |
335 | ||
cdc133bd SG |
336 | void *dev_get_parent_platdata(struct udevice *dev) |
337 | { | |
338 | if (!dev) { | |
36d7cc17 | 339 | dm_warn("%s: null device\n", __func__); |
cdc133bd SG |
340 | return NULL; |
341 | } | |
342 | ||
343 | return dev->parent_platdata; | |
344 | } | |
345 | ||
5eaed880 PM |
346 | void *dev_get_uclass_platdata(struct udevice *dev) |
347 | { | |
348 | if (!dev) { | |
36d7cc17 | 349 | dm_warn("%s: null device\n", __func__); |
5eaed880 PM |
350 | return NULL; |
351 | } | |
352 | ||
353 | return dev->uclass_platdata; | |
354 | } | |
355 | ||
54c5d08a | 356 | void *dev_get_priv(struct udevice *dev) |
6494d708 SG |
357 | { |
358 | if (!dev) { | |
964d153c | 359 | dm_warn("%s: null device\n", __func__); |
6494d708 SG |
360 | return NULL; |
361 | } | |
362 | ||
363 | return dev->priv; | |
364 | } | |
997c87bb | 365 | |
e564f054 SG |
366 | void *dev_get_uclass_priv(struct udevice *dev) |
367 | { | |
368 | if (!dev) { | |
369 | dm_warn("%s: null device\n", __func__); | |
370 | return NULL; | |
371 | } | |
372 | ||
373 | return dev->uclass_priv; | |
374 | } | |
375 | ||
e59f458d SG |
376 | void *dev_get_parentdata(struct udevice *dev) |
377 | { | |
378 | if (!dev) { | |
964d153c | 379 | dm_warn("%s: null device\n", __func__); |
e59f458d SG |
380 | return NULL; |
381 | } | |
382 | ||
383 | return dev->parent_priv; | |
384 | } | |
385 | ||
997c87bb SG |
386 | static int device_get_device_tail(struct udevice *dev, int ret, |
387 | struct udevice **devp) | |
388 | { | |
389 | if (ret) | |
390 | return ret; | |
391 | ||
392 | ret = device_probe(dev); | |
393 | if (ret) | |
394 | return ret; | |
395 | ||
396 | *devp = dev; | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | int device_get_child(struct udevice *parent, int index, struct udevice **devp) | |
402 | { | |
403 | struct udevice *dev; | |
404 | ||
405 | list_for_each_entry(dev, &parent->child_head, sibling_node) { | |
406 | if (!index--) | |
407 | return device_get_device_tail(dev, 0, devp); | |
408 | } | |
409 | ||
410 | return -ENODEV; | |
411 | } | |
412 | ||
413 | int device_find_child_by_seq(struct udevice *parent, int seq_or_req_seq, | |
414 | bool find_req_seq, struct udevice **devp) | |
415 | { | |
416 | struct udevice *dev; | |
417 | ||
418 | *devp = NULL; | |
419 | if (seq_or_req_seq == -1) | |
420 | return -ENODEV; | |
421 | ||
422 | list_for_each_entry(dev, &parent->child_head, sibling_node) { | |
423 | if ((find_req_seq ? dev->req_seq : dev->seq) == | |
424 | seq_or_req_seq) { | |
425 | *devp = dev; | |
426 | return 0; | |
427 | } | |
428 | } | |
429 | ||
430 | return -ENODEV; | |
431 | } | |
432 | ||
433 | int device_get_child_by_seq(struct udevice *parent, int seq, | |
434 | struct udevice **devp) | |
435 | { | |
436 | struct udevice *dev; | |
437 | int ret; | |
438 | ||
439 | *devp = NULL; | |
440 | ret = device_find_child_by_seq(parent, seq, false, &dev); | |
441 | if (ret == -ENODEV) { | |
442 | /* | |
443 | * We didn't find it in probed devices. See if there is one | |
444 | * that will request this seq if probed. | |
445 | */ | |
446 | ret = device_find_child_by_seq(parent, seq, true, &dev); | |
447 | } | |
448 | return device_get_device_tail(dev, ret, devp); | |
449 | } | |
450 | ||
451 | int device_find_child_by_of_offset(struct udevice *parent, int of_offset, | |
452 | struct udevice **devp) | |
453 | { | |
454 | struct udevice *dev; | |
455 | ||
456 | *devp = NULL; | |
457 | ||
458 | list_for_each_entry(dev, &parent->child_head, sibling_node) { | |
459 | if (dev->of_offset == of_offset) { | |
460 | *devp = dev; | |
461 | return 0; | |
462 | } | |
463 | } | |
464 | ||
465 | return -ENODEV; | |
466 | } | |
467 | ||
132f9bfc | 468 | int device_get_child_by_of_offset(struct udevice *parent, int node, |
997c87bb SG |
469 | struct udevice **devp) |
470 | { | |
471 | struct udevice *dev; | |
472 | int ret; | |
473 | ||
474 | *devp = NULL; | |
132f9bfc | 475 | ret = device_find_child_by_of_offset(parent, node, &dev); |
997c87bb SG |
476 | return device_get_device_tail(dev, ret, devp); |
477 | } | |
a8981d4f | 478 | |
2693047a SG |
479 | static struct udevice *_device_find_global_by_of_offset(struct udevice *parent, |
480 | int of_offset) | |
481 | { | |
482 | struct udevice *dev, *found; | |
483 | ||
484 | if (parent->of_offset == of_offset) | |
485 | return parent; | |
486 | ||
487 | list_for_each_entry(dev, &parent->child_head, sibling_node) { | |
488 | found = _device_find_global_by_of_offset(dev, of_offset); | |
489 | if (found) | |
490 | return found; | |
491 | } | |
492 | ||
493 | return NULL; | |
494 | } | |
495 | ||
496 | int device_get_global_by_of_offset(int of_offset, struct udevice **devp) | |
497 | { | |
498 | struct udevice *dev; | |
499 | ||
500 | dev = _device_find_global_by_of_offset(gd->dm_root, of_offset); | |
501 | return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp); | |
502 | } | |
503 | ||
a8981d4f SG |
504 | int device_find_first_child(struct udevice *parent, struct udevice **devp) |
505 | { | |
506 | if (list_empty(&parent->child_head)) { | |
507 | *devp = NULL; | |
508 | } else { | |
509 | *devp = list_first_entry(&parent->child_head, struct udevice, | |
510 | sibling_node); | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | int device_find_next_child(struct udevice **devp) | |
517 | { | |
518 | struct udevice *dev = *devp; | |
519 | struct udevice *parent = dev->parent; | |
520 | ||
521 | if (list_is_last(&dev->sibling_node, &parent->child_head)) { | |
522 | *devp = NULL; | |
523 | } else { | |
524 | *devp = list_entry(dev->sibling_node.next, struct udevice, | |
525 | sibling_node); | |
526 | } | |
527 | ||
528 | return 0; | |
529 | } | |
2ef249b4 | 530 | |
479728cb SG |
531 | struct udevice *dev_get_parent(struct udevice *child) |
532 | { | |
533 | return child->parent; | |
534 | } | |
535 | ||
39de8433 | 536 | ulong dev_get_driver_data(struct udevice *dev) |
2ef249b4 | 537 | { |
39de8433 | 538 | return dev->driver_data; |
2ef249b4 | 539 | } |
b3670531 | 540 | |
cc73d37b PM |
541 | const void *dev_get_driver_ops(struct udevice *dev) |
542 | { | |
543 | if (!dev || !dev->driver->ops) | |
544 | return NULL; | |
545 | ||
546 | return dev->driver->ops; | |
547 | } | |
548 | ||
b3670531 SG |
549 | enum uclass_id device_get_uclass_id(struct udevice *dev) |
550 | { | |
551 | return dev->uclass->uc_drv->id; | |
552 | } | |
c9cac3f8 | 553 | |
f9c370dc PM |
554 | const char *dev_get_uclass_name(struct udevice *dev) |
555 | { | |
556 | if (!dev) | |
557 | return NULL; | |
558 | ||
559 | return dev->uclass->uc_drv->name; | |
560 | } | |
561 | ||
c9cac3f8 PF |
562 | fdt_addr_t dev_get_addr(struct udevice *dev) |
563 | { | |
0f925822 | 564 | #if CONFIG_IS_ENABLED(OF_CONTROL) |
f3301771 SG |
565 | fdt_addr_t addr; |
566 | ||
567 | addr = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg"); | |
568 | if (addr != FDT_ADDR_T_NONE) { | |
569 | if (device_get_uclass_id(dev->parent) == UCLASS_SIMPLE_BUS) | |
570 | addr = simple_bus_translate(dev->parent, addr); | |
571 | } | |
572 | ||
573 | return addr; | |
c9cac3f8 | 574 | #else |
c9cac3f8 | 575 | return FDT_ADDR_T_NONE; |
c9cac3f8 | 576 | #endif |
f3301771 | 577 | } |
c5785673 SG |
578 | |
579 | bool device_has_children(struct udevice *dev) | |
580 | { | |
581 | return !list_empty(&dev->child_head); | |
582 | } | |
583 | ||
584 | bool device_has_active_children(struct udevice *dev) | |
585 | { | |
586 | struct udevice *child; | |
587 | ||
588 | for (device_find_first_child(dev, &child); | |
589 | child; | |
590 | device_find_next_child(&child)) { | |
591 | if (device_active(child)) | |
592 | return true; | |
593 | } | |
594 | ||
595 | return false; | |
596 | } | |
597 | ||
598 | bool device_is_last_sibling(struct udevice *dev) | |
599 | { | |
600 | struct udevice *parent = dev->parent; | |
601 | ||
602 | if (!parent) | |
603 | return false; | |
604 | return list_is_last(&dev->sibling_node, &parent->child_head); | |
605 | } | |
f5c67ea0 SG |
606 | |
607 | int device_set_name(struct udevice *dev, const char *name) | |
608 | { | |
609 | name = strdup(name); | |
610 | if (!name) | |
611 | return -ENOMEM; | |
612 | dev->name = name; | |
613 | ||
614 | return 0; | |
615 | } |