16494d708SSimon Glass /* 26494d708SSimon Glass * Copyright (c) 2013 Google, Inc 36494d708SSimon Glass * 46494d708SSimon Glass * (C) Copyright 2012 56494d708SSimon Glass * Pavel Herrmann <morpheus.ibis@gmail.com> 66494d708SSimon Glass * 76494d708SSimon Glass * SPDX-License-Identifier: GPL-2.0+ 86494d708SSimon Glass */ 96494d708SSimon Glass 106494d708SSimon Glass #include <common.h> 116494d708SSimon Glass #include <errno.h> 126494d708SSimon Glass #include <malloc.h> 136494d708SSimon Glass #include <dm/device.h> 146494d708SSimon Glass #include <dm/device-internal.h> 156494d708SSimon Glass #include <dm/lists.h> 166494d708SSimon Glass #include <dm/uclass.h> 176494d708SSimon Glass #include <dm/uclass-internal.h> 186494d708SSimon Glass #include <dm/util.h> 196494d708SSimon Glass 206494d708SSimon Glass DECLARE_GLOBAL_DATA_PTR; 216494d708SSimon Glass 226494d708SSimon Glass struct uclass *uclass_find(enum uclass_id key) 236494d708SSimon Glass { 246494d708SSimon Glass struct uclass *uc; 256494d708SSimon Glass 26c910e2e2SSimon Glass if (!gd->dm_root) 27c910e2e2SSimon Glass return NULL; 286494d708SSimon Glass /* 296494d708SSimon Glass * TODO(sjg@chromium.org): Optimise this, perhaps moving the found 306494d708SSimon Glass * node to the start of the list, or creating a linear array mapping 316494d708SSimon Glass * id to node. 326494d708SSimon Glass */ 336494d708SSimon Glass list_for_each_entry(uc, &gd->uclass_root, sibling_node) { 346494d708SSimon Glass if (uc->uc_drv->id == key) 356494d708SSimon Glass return uc; 366494d708SSimon Glass } 376494d708SSimon Glass 386494d708SSimon Glass return NULL; 396494d708SSimon Glass } 406494d708SSimon Glass 416494d708SSimon Glass /** 426494d708SSimon Glass * uclass_add() - Create new uclass in list 436494d708SSimon Glass * @id: Id number to create 446494d708SSimon Glass * @ucp: Returns pointer to uclass, or NULL on error 456494d708SSimon Glass * @return 0 on success, -ve on error 466494d708SSimon Glass * 476494d708SSimon Glass * The new uclass is added to the list. There must be only one uclass for 486494d708SSimon Glass * each id. 496494d708SSimon Glass */ 506494d708SSimon Glass static int uclass_add(enum uclass_id id, struct uclass **ucp) 516494d708SSimon Glass { 526494d708SSimon Glass struct uclass_driver *uc_drv; 536494d708SSimon Glass struct uclass *uc; 546494d708SSimon Glass int ret; 556494d708SSimon Glass 566494d708SSimon Glass *ucp = NULL; 576494d708SSimon Glass uc_drv = lists_uclass_lookup(id); 586494d708SSimon Glass if (!uc_drv) { 596494d708SSimon Glass dm_warn("Cannot find uclass for id %d: please add the UCLASS_DRIVER() declaration for this UCLASS_... id\n", 606494d708SSimon Glass id); 616494d708SSimon Glass return -ENOENT; 626494d708SSimon Glass } 636494d708SSimon Glass uc = calloc(1, sizeof(*uc)); 646494d708SSimon Glass if (!uc) 656494d708SSimon Glass return -ENOMEM; 666494d708SSimon Glass if (uc_drv->priv_auto_alloc_size) { 676494d708SSimon Glass uc->priv = calloc(1, uc_drv->priv_auto_alloc_size); 686494d708SSimon Glass if (!uc->priv) { 696494d708SSimon Glass ret = -ENOMEM; 706494d708SSimon Glass goto fail_mem; 716494d708SSimon Glass } 726494d708SSimon Glass } 736494d708SSimon Glass uc->uc_drv = uc_drv; 746494d708SSimon Glass INIT_LIST_HEAD(&uc->sibling_node); 756494d708SSimon Glass INIT_LIST_HEAD(&uc->dev_head); 7689876a55SSimon Glass list_add(&uc->sibling_node, &DM_UCLASS_ROOT_NON_CONST); 776494d708SSimon Glass 786494d708SSimon Glass if (uc_drv->init) { 796494d708SSimon Glass ret = uc_drv->init(uc); 806494d708SSimon Glass if (ret) 816494d708SSimon Glass goto fail; 826494d708SSimon Glass } 836494d708SSimon Glass 846494d708SSimon Glass *ucp = uc; 856494d708SSimon Glass 866494d708SSimon Glass return 0; 876494d708SSimon Glass fail: 886494d708SSimon Glass if (uc_drv->priv_auto_alloc_size) { 896494d708SSimon Glass free(uc->priv); 906494d708SSimon Glass uc->priv = NULL; 916494d708SSimon Glass } 926494d708SSimon Glass list_del(&uc->sibling_node); 936494d708SSimon Glass fail_mem: 946494d708SSimon Glass free(uc); 956494d708SSimon Glass 966494d708SSimon Glass return ret; 976494d708SSimon Glass } 986494d708SSimon Glass 996494d708SSimon Glass int uclass_destroy(struct uclass *uc) 1006494d708SSimon Glass { 1016494d708SSimon Glass struct uclass_driver *uc_drv; 10207d260e0SSimon Glass struct udevice *dev; 1036494d708SSimon Glass int ret; 1046494d708SSimon Glass 10507d260e0SSimon Glass /* 10607d260e0SSimon Glass * We cannot use list_for_each_entry_safe() here. If a device in this 10707d260e0SSimon Glass * uclass has a child device also in this uclass, it will be also be 10807d260e0SSimon Glass * unbound (by the recursion in the call to device_unbind() below). 10907d260e0SSimon Glass * We can loop until the list is empty. 11007d260e0SSimon Glass */ 11107d260e0SSimon Glass while (!list_empty(&uc->dev_head)) { 11207d260e0SSimon Glass dev = list_first_entry(&uc->dev_head, struct udevice, 11307d260e0SSimon Glass uclass_node); 1146494d708SSimon Glass ret = device_remove(dev); 1156494d708SSimon Glass if (ret) 1166494d708SSimon Glass return ret; 1176494d708SSimon Glass ret = device_unbind(dev); 1186494d708SSimon Glass if (ret) 1196494d708SSimon Glass return ret; 1206494d708SSimon Glass } 1216494d708SSimon Glass 1226494d708SSimon Glass uc_drv = uc->uc_drv; 1236494d708SSimon Glass if (uc_drv->destroy) 1246494d708SSimon Glass uc_drv->destroy(uc); 1256494d708SSimon Glass list_del(&uc->sibling_node); 1266494d708SSimon Glass if (uc_drv->priv_auto_alloc_size) 1276494d708SSimon Glass free(uc->priv); 1286494d708SSimon Glass free(uc); 1296494d708SSimon Glass 1306494d708SSimon Glass return 0; 1316494d708SSimon Glass } 1326494d708SSimon Glass 1336494d708SSimon Glass int uclass_get(enum uclass_id id, struct uclass **ucp) 1346494d708SSimon Glass { 1356494d708SSimon Glass struct uclass *uc; 1366494d708SSimon Glass 1376494d708SSimon Glass *ucp = NULL; 1386494d708SSimon Glass uc = uclass_find(id); 1396494d708SSimon Glass if (!uc) 1406494d708SSimon Glass return uclass_add(id, ucp); 1416494d708SSimon Glass *ucp = uc; 1426494d708SSimon Glass 1436494d708SSimon Glass return 0; 1446494d708SSimon Glass } 1456494d708SSimon Glass 14654c5d08aSHeiko Schocher int uclass_find_device(enum uclass_id id, int index, struct udevice **devp) 1476494d708SSimon Glass { 1486494d708SSimon Glass struct uclass *uc; 14954c5d08aSHeiko Schocher struct udevice *dev; 1506494d708SSimon Glass int ret; 1516494d708SSimon Glass 1526494d708SSimon Glass *devp = NULL; 1536494d708SSimon Glass ret = uclass_get(id, &uc); 1546494d708SSimon Glass if (ret) 1556494d708SSimon Glass return ret; 1566494d708SSimon Glass 1576494d708SSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 1586494d708SSimon Glass if (!index--) { 1596494d708SSimon Glass *devp = dev; 1606494d708SSimon Glass return 0; 1616494d708SSimon Glass } 1626494d708SSimon Glass } 1636494d708SSimon Glass 1646494d708SSimon Glass return -ENODEV; 1656494d708SSimon Glass } 1666494d708SSimon Glass 167c1d6f919SPrzemyslaw Marczak int uclass_find_first_device(enum uclass_id id, struct udevice **devp) 168c1d6f919SPrzemyslaw Marczak { 169c1d6f919SPrzemyslaw Marczak struct uclass *uc; 170c1d6f919SPrzemyslaw Marczak int ret; 171c1d6f919SPrzemyslaw Marczak 172c1d6f919SPrzemyslaw Marczak *devp = NULL; 173c1d6f919SPrzemyslaw Marczak ret = uclass_get(id, &uc); 174c1d6f919SPrzemyslaw Marczak if (ret) 175c1d6f919SPrzemyslaw Marczak return ret; 176c1d6f919SPrzemyslaw Marczak if (list_empty(&uc->dev_head)) 177c1d6f919SPrzemyslaw Marczak return 0; 178c1d6f919SPrzemyslaw Marczak 179c1d6f919SPrzemyslaw Marczak *devp = list_first_entry(&uc->dev_head, struct udevice, uclass_node); 180c1d6f919SPrzemyslaw Marczak 181c1d6f919SPrzemyslaw Marczak return 0; 182c1d6f919SPrzemyslaw Marczak } 183c1d6f919SPrzemyslaw Marczak 184c1d6f919SPrzemyslaw Marczak int uclass_find_next_device(struct udevice **devp) 185c1d6f919SPrzemyslaw Marczak { 186c1d6f919SPrzemyslaw Marczak struct udevice *dev = *devp; 187c1d6f919SPrzemyslaw Marczak 188c1d6f919SPrzemyslaw Marczak *devp = NULL; 189c1d6f919SPrzemyslaw Marczak if (list_is_last(&dev->uclass_node, &dev->uclass->dev_head)) 190c1d6f919SPrzemyslaw Marczak return 0; 191c1d6f919SPrzemyslaw Marczak 192c1d6f919SPrzemyslaw Marczak *devp = list_entry(dev->uclass_node.next, struct udevice, uclass_node); 193c1d6f919SPrzemyslaw Marczak 194c1d6f919SPrzemyslaw Marczak return 0; 195c1d6f919SPrzemyslaw Marczak } 196c1d6f919SPrzemyslaw Marczak 197e0735a4cSPrzemyslaw Marczak int uclass_find_device_by_name(enum uclass_id id, const char *name, 198e0735a4cSPrzemyslaw Marczak struct udevice **devp) 199e0735a4cSPrzemyslaw Marczak { 200e0735a4cSPrzemyslaw Marczak struct uclass *uc; 201e0735a4cSPrzemyslaw Marczak struct udevice *dev; 202e0735a4cSPrzemyslaw Marczak int ret; 203e0735a4cSPrzemyslaw Marczak 204e0735a4cSPrzemyslaw Marczak *devp = NULL; 205e0735a4cSPrzemyslaw Marczak if (!name) 206e0735a4cSPrzemyslaw Marczak return -EINVAL; 207e0735a4cSPrzemyslaw Marczak ret = uclass_get(id, &uc); 208e0735a4cSPrzemyslaw Marczak if (ret) 209e0735a4cSPrzemyslaw Marczak return ret; 210e0735a4cSPrzemyslaw Marczak 211e0735a4cSPrzemyslaw Marczak list_for_each_entry(dev, &uc->dev_head, uclass_node) { 212e0735a4cSPrzemyslaw Marczak if (!strncmp(dev->name, name, strlen(name))) { 213e0735a4cSPrzemyslaw Marczak *devp = dev; 214e0735a4cSPrzemyslaw Marczak return 0; 215e0735a4cSPrzemyslaw Marczak } 216e0735a4cSPrzemyslaw Marczak } 217e0735a4cSPrzemyslaw Marczak 218e0735a4cSPrzemyslaw Marczak return -ENODEV; 219e0735a4cSPrzemyslaw Marczak } 220e0735a4cSPrzemyslaw Marczak 2215a66a8ffSSimon Glass int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, 2225a66a8ffSSimon Glass bool find_req_seq, struct udevice **devp) 2235a66a8ffSSimon Glass { 2245a66a8ffSSimon Glass struct uclass *uc; 2255a66a8ffSSimon Glass struct udevice *dev; 2265a66a8ffSSimon Glass int ret; 2275a66a8ffSSimon Glass 2285a66a8ffSSimon Glass *devp = NULL; 2295a66a8ffSSimon Glass debug("%s: %d %d\n", __func__, find_req_seq, seq_or_req_seq); 2305a66a8ffSSimon Glass if (seq_or_req_seq == -1) 2315a66a8ffSSimon Glass return -ENODEV; 2325a66a8ffSSimon Glass ret = uclass_get(id, &uc); 2335a66a8ffSSimon Glass if (ret) 2345a66a8ffSSimon Glass return ret; 2355a66a8ffSSimon Glass 2365a66a8ffSSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 2375a66a8ffSSimon Glass debug(" - %d %d\n", dev->req_seq, dev->seq); 2385a66a8ffSSimon Glass if ((find_req_seq ? dev->req_seq : dev->seq) == 2395a66a8ffSSimon Glass seq_or_req_seq) { 2405a66a8ffSSimon Glass *devp = dev; 2415a66a8ffSSimon Glass debug(" - found\n"); 2425a66a8ffSSimon Glass return 0; 2435a66a8ffSSimon Glass } 2445a66a8ffSSimon Glass } 2455a66a8ffSSimon Glass debug(" - not found\n"); 2465a66a8ffSSimon Glass 2475a66a8ffSSimon Glass return -ENODEV; 2485a66a8ffSSimon Glass } 2495a66a8ffSSimon Glass 250f4cdead2SSimon Glass static int uclass_find_device_by_of_offset(enum uclass_id id, int node, 251f4cdead2SSimon Glass struct udevice **devp) 252f4cdead2SSimon Glass { 253f4cdead2SSimon Glass struct uclass *uc; 254f4cdead2SSimon Glass struct udevice *dev; 255f4cdead2SSimon Glass int ret; 256f4cdead2SSimon Glass 257f4cdead2SSimon Glass *devp = NULL; 258f4cdead2SSimon Glass if (node < 0) 259f4cdead2SSimon Glass return -ENODEV; 260f4cdead2SSimon Glass ret = uclass_get(id, &uc); 261f4cdead2SSimon Glass if (ret) 262f4cdead2SSimon Glass return ret; 263f4cdead2SSimon Glass 264f4cdead2SSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 265f4cdead2SSimon Glass if (dev->of_offset == node) { 266f4cdead2SSimon Glass *devp = dev; 267f4cdead2SSimon Glass return 0; 268f4cdead2SSimon Glass } 269f4cdead2SSimon Glass } 270f4cdead2SSimon Glass 271f4cdead2SSimon Glass return -ENODEV; 272f4cdead2SSimon Glass } 273f4cdead2SSimon Glass 274794d5219SPrzemyslaw Marczak int uclass_get_device_tail(struct udevice *dev, int ret, 2759ca296a1SSimon Glass struct udevice **devp) 2766494d708SSimon Glass { 2776494d708SSimon Glass if (ret) 2786494d708SSimon Glass return ret; 2796494d708SSimon Glass 280*f66529f9SSimon Glass assert(dev); 2816494d708SSimon Glass ret = device_probe(dev); 2826494d708SSimon Glass if (ret) 2836494d708SSimon Glass return ret; 2846494d708SSimon Glass 2856494d708SSimon Glass *devp = dev; 2866494d708SSimon Glass 2876494d708SSimon Glass return 0; 2886494d708SSimon Glass } 2896494d708SSimon Glass 2909ca296a1SSimon Glass int uclass_get_device(enum uclass_id id, int index, struct udevice **devp) 2919ca296a1SSimon Glass { 2929ca296a1SSimon Glass struct udevice *dev; 2939ca296a1SSimon Glass int ret; 2949ca296a1SSimon Glass 2959ca296a1SSimon Glass *devp = NULL; 2969ca296a1SSimon Glass ret = uclass_find_device(id, index, &dev); 2979ca296a1SSimon Glass return uclass_get_device_tail(dev, ret, devp); 2989ca296a1SSimon Glass } 2999ca296a1SSimon Glass 300b7af1a2dSPrzemyslaw Marczak int uclass_get_device_by_name(enum uclass_id id, const char *name, 301b7af1a2dSPrzemyslaw Marczak struct udevice **devp) 302b7af1a2dSPrzemyslaw Marczak { 303b7af1a2dSPrzemyslaw Marczak struct udevice *dev; 304b7af1a2dSPrzemyslaw Marczak int ret; 305b7af1a2dSPrzemyslaw Marczak 306b7af1a2dSPrzemyslaw Marczak *devp = NULL; 307b7af1a2dSPrzemyslaw Marczak ret = uclass_find_device_by_name(id, name, &dev); 308b7af1a2dSPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 309b7af1a2dSPrzemyslaw Marczak } 310b7af1a2dSPrzemyslaw Marczak 3115a66a8ffSSimon Glass int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp) 3125a66a8ffSSimon Glass { 3135a66a8ffSSimon Glass struct udevice *dev; 3145a66a8ffSSimon Glass int ret; 3155a66a8ffSSimon Glass 3165a66a8ffSSimon Glass *devp = NULL; 3175a66a8ffSSimon Glass ret = uclass_find_device_by_seq(id, seq, false, &dev); 3185a66a8ffSSimon Glass if (ret == -ENODEV) { 3195a66a8ffSSimon Glass /* 3205a66a8ffSSimon Glass * We didn't find it in probed devices. See if there is one 3215a66a8ffSSimon Glass * that will request this seq if probed. 3225a66a8ffSSimon Glass */ 3235a66a8ffSSimon Glass ret = uclass_find_device_by_seq(id, seq, true, &dev); 3245a66a8ffSSimon Glass } 3255a66a8ffSSimon Glass return uclass_get_device_tail(dev, ret, devp); 3265a66a8ffSSimon Glass } 3275a66a8ffSSimon Glass 328f4cdead2SSimon Glass int uclass_get_device_by_of_offset(enum uclass_id id, int node, 329f4cdead2SSimon Glass struct udevice **devp) 330f4cdead2SSimon Glass { 331f4cdead2SSimon Glass struct udevice *dev; 332f4cdead2SSimon Glass int ret; 333f4cdead2SSimon Glass 334f4cdead2SSimon Glass *devp = NULL; 335f4cdead2SSimon Glass ret = uclass_find_device_by_of_offset(id, node, &dev); 336f4cdead2SSimon Glass return uclass_get_device_tail(dev, ret, devp); 337f4cdead2SSimon Glass } 338f4cdead2SSimon Glass 33954c5d08aSHeiko Schocher int uclass_first_device(enum uclass_id id, struct udevice **devp) 3406494d708SSimon Glass { 34154c5d08aSHeiko Schocher struct udevice *dev; 3426494d708SSimon Glass int ret; 3436494d708SSimon Glass 3446494d708SSimon Glass *devp = NULL; 345c1d6f919SPrzemyslaw Marczak ret = uclass_find_first_device(id, &dev); 346*f66529f9SSimon Glass if (!dev) 347*f66529f9SSimon Glass return 0; 348c1d6f919SPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 3496494d708SSimon Glass } 3506494d708SSimon Glass 35154c5d08aSHeiko Schocher int uclass_next_device(struct udevice **devp) 3526494d708SSimon Glass { 35354c5d08aSHeiko Schocher struct udevice *dev = *devp; 3546494d708SSimon Glass int ret; 3556494d708SSimon Glass 3566494d708SSimon Glass *devp = NULL; 357c1d6f919SPrzemyslaw Marczak ret = uclass_find_next_device(&dev); 358*f66529f9SSimon Glass if (!dev) 359*f66529f9SSimon Glass return 0; 360c1d6f919SPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 3616494d708SSimon Glass } 3626494d708SSimon Glass 36354c5d08aSHeiko Schocher int uclass_bind_device(struct udevice *dev) 3646494d708SSimon Glass { 3656494d708SSimon Glass struct uclass *uc; 3666494d708SSimon Glass int ret; 3676494d708SSimon Glass 3686494d708SSimon Glass uc = dev->uclass; 3696494d708SSimon Glass list_add_tail(&dev->uclass_node, &uc->dev_head); 3706494d708SSimon Glass 371081f2fcbSSimon Glass if (dev->parent) { 372081f2fcbSSimon Glass struct uclass_driver *uc_drv = dev->parent->uclass->uc_drv; 373081f2fcbSSimon Glass 374081f2fcbSSimon Glass if (uc_drv->child_post_bind) { 375081f2fcbSSimon Glass ret = uc_drv->child_post_bind(dev); 376081f2fcbSSimon Glass if (ret) 377081f2fcbSSimon Glass goto err; 378081f2fcbSSimon Glass } 379081f2fcbSSimon Glass } 3806494d708SSimon Glass if (uc->uc_drv->post_bind) { 3816494d708SSimon Glass ret = uc->uc_drv->post_bind(dev); 382081f2fcbSSimon Glass if (ret) 383081f2fcbSSimon Glass goto err; 3846494d708SSimon Glass } 3856494d708SSimon Glass 3866494d708SSimon Glass return 0; 387081f2fcbSSimon Glass err: 388081f2fcbSSimon Glass /* There is no need to undo the parent's post_bind call */ 389081f2fcbSSimon Glass list_del(&dev->uclass_node); 390081f2fcbSSimon Glass 391081f2fcbSSimon Glass return ret; 3926494d708SSimon Glass } 3936494d708SSimon Glass 3947f9875e7SSimon Glass #ifdef CONFIG_DM_DEVICE_REMOVE 39554c5d08aSHeiko Schocher int uclass_unbind_device(struct udevice *dev) 3966494d708SSimon Glass { 3976494d708SSimon Glass struct uclass *uc; 3986494d708SSimon Glass int ret; 3996494d708SSimon Glass 4006494d708SSimon Glass uc = dev->uclass; 4016494d708SSimon Glass if (uc->uc_drv->pre_unbind) { 4026494d708SSimon Glass ret = uc->uc_drv->pre_unbind(dev); 4036494d708SSimon Glass if (ret) 4046494d708SSimon Glass return ret; 4056494d708SSimon Glass } 4066494d708SSimon Glass 4076494d708SSimon Glass list_del(&dev->uclass_node); 4086494d708SSimon Glass return 0; 4096494d708SSimon Glass } 4107f9875e7SSimon Glass #endif 4116494d708SSimon Glass 4125a66a8ffSSimon Glass int uclass_resolve_seq(struct udevice *dev) 4135a66a8ffSSimon Glass { 4145a66a8ffSSimon Glass struct udevice *dup; 4155a66a8ffSSimon Glass int seq; 4165a66a8ffSSimon Glass int ret; 4175a66a8ffSSimon Glass 4185a66a8ffSSimon Glass assert(dev->seq == -1); 4195a66a8ffSSimon Glass ret = uclass_find_device_by_seq(dev->uclass->uc_drv->id, dev->req_seq, 4205a66a8ffSSimon Glass false, &dup); 4215a66a8ffSSimon Glass if (!ret) { 4225a66a8ffSSimon Glass dm_warn("Device '%s': seq %d is in use by '%s'\n", 4235a66a8ffSSimon Glass dev->name, dev->req_seq, dup->name); 4245a66a8ffSSimon Glass } else if (ret == -ENODEV) { 4255a66a8ffSSimon Glass /* Our requested sequence number is available */ 4265a66a8ffSSimon Glass if (dev->req_seq != -1) 4275a66a8ffSSimon Glass return dev->req_seq; 4285a66a8ffSSimon Glass } else { 4295a66a8ffSSimon Glass return ret; 4305a66a8ffSSimon Glass } 4315a66a8ffSSimon Glass 4325a66a8ffSSimon Glass for (seq = 0; seq < DM_MAX_SEQ; seq++) { 4335a66a8ffSSimon Glass ret = uclass_find_device_by_seq(dev->uclass->uc_drv->id, seq, 4345a66a8ffSSimon Glass false, &dup); 4355a66a8ffSSimon Glass if (ret == -ENODEV) 4365a66a8ffSSimon Glass break; 4375a66a8ffSSimon Glass if (ret) 4385a66a8ffSSimon Glass return ret; 4395a66a8ffSSimon Glass } 4405a66a8ffSSimon Glass return seq; 4415a66a8ffSSimon Glass } 4425a66a8ffSSimon Glass 44302c07b37SSimon Glass int uclass_pre_probe_device(struct udevice *dev) 44483c7e434SSimon Glass { 44583c7e434SSimon Glass struct uclass_driver *uc_drv; 44602c07b37SSimon Glass int ret; 44702c07b37SSimon Glass 44802c07b37SSimon Glass uc_drv = dev->uclass->uc_drv; 44902c07b37SSimon Glass if (uc_drv->pre_probe) { 45002c07b37SSimon Glass ret = uc_drv->pre_probe(dev); 45102c07b37SSimon Glass if (ret) 45202c07b37SSimon Glass return ret; 45302c07b37SSimon Glass } 45483c7e434SSimon Glass 45583c7e434SSimon Glass if (!dev->parent) 45683c7e434SSimon Glass return 0; 45783c7e434SSimon Glass uc_drv = dev->parent->uclass->uc_drv; 45883c7e434SSimon Glass if (uc_drv->child_pre_probe) 45983c7e434SSimon Glass return uc_drv->child_pre_probe(dev); 46083c7e434SSimon Glass 46183c7e434SSimon Glass return 0; 46283c7e434SSimon Glass } 46383c7e434SSimon Glass 46454c5d08aSHeiko Schocher int uclass_post_probe_device(struct udevice *dev) 4656494d708SSimon Glass { 4666494d708SSimon Glass struct uclass_driver *uc_drv = dev->uclass->uc_drv; 4676494d708SSimon Glass 4686494d708SSimon Glass if (uc_drv->post_probe) 4696494d708SSimon Glass return uc_drv->post_probe(dev); 4706494d708SSimon Glass 4716494d708SSimon Glass return 0; 4726494d708SSimon Glass } 4736494d708SSimon Glass 4747f9875e7SSimon Glass #ifdef CONFIG_DM_DEVICE_REMOVE 47554c5d08aSHeiko Schocher int uclass_pre_remove_device(struct udevice *dev) 4766494d708SSimon Glass { 4776494d708SSimon Glass struct uclass_driver *uc_drv; 4786494d708SSimon Glass struct uclass *uc; 4796494d708SSimon Glass int ret; 4806494d708SSimon Glass 4816494d708SSimon Glass uc = dev->uclass; 4826494d708SSimon Glass uc_drv = uc->uc_drv; 4836494d708SSimon Glass if (uc->uc_drv->pre_remove) { 4846494d708SSimon Glass ret = uc->uc_drv->pre_remove(dev); 4856494d708SSimon Glass if (ret) 4866494d708SSimon Glass return ret; 4876494d708SSimon Glass } 4886494d708SSimon Glass if (uc_drv->per_device_auto_alloc_size) { 4896494d708SSimon Glass free(dev->uclass_priv); 4906494d708SSimon Glass dev->uclass_priv = NULL; 4916494d708SSimon Glass } 4925a66a8ffSSimon Glass dev->seq = -1; 4936494d708SSimon Glass 4946494d708SSimon Glass return 0; 4956494d708SSimon Glass } 4967f9875e7SSimon Glass #endif 497