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; 10254c5d08aSHeiko Schocher struct udevice *dev, *tmp; 1036494d708SSimon Glass int ret; 1046494d708SSimon Glass 1056494d708SSimon Glass list_for_each_entry_safe(dev, tmp, &uc->dev_head, uclass_node) { 1066494d708SSimon Glass ret = device_remove(dev); 1076494d708SSimon Glass if (ret) 1086494d708SSimon Glass return ret; 1096494d708SSimon Glass ret = device_unbind(dev); 1106494d708SSimon Glass if (ret) 1116494d708SSimon Glass return ret; 1126494d708SSimon Glass } 1136494d708SSimon Glass 1146494d708SSimon Glass uc_drv = uc->uc_drv; 1156494d708SSimon Glass if (uc_drv->destroy) 1166494d708SSimon Glass uc_drv->destroy(uc); 1176494d708SSimon Glass list_del(&uc->sibling_node); 1186494d708SSimon Glass if (uc_drv->priv_auto_alloc_size) 1196494d708SSimon Glass free(uc->priv); 1206494d708SSimon Glass free(uc); 1216494d708SSimon Glass 1226494d708SSimon Glass return 0; 1236494d708SSimon Glass } 1246494d708SSimon Glass 1256494d708SSimon Glass int uclass_get(enum uclass_id id, struct uclass **ucp) 1266494d708SSimon Glass { 1276494d708SSimon Glass struct uclass *uc; 1286494d708SSimon Glass 1296494d708SSimon Glass *ucp = NULL; 1306494d708SSimon Glass uc = uclass_find(id); 1316494d708SSimon Glass if (!uc) 1326494d708SSimon Glass return uclass_add(id, ucp); 1336494d708SSimon Glass *ucp = uc; 1346494d708SSimon Glass 1356494d708SSimon Glass return 0; 1366494d708SSimon Glass } 1376494d708SSimon Glass 13854c5d08aSHeiko Schocher int uclass_find_device(enum uclass_id id, int index, struct udevice **devp) 1396494d708SSimon Glass { 1406494d708SSimon Glass struct uclass *uc; 14154c5d08aSHeiko Schocher struct udevice *dev; 1426494d708SSimon Glass int ret; 1436494d708SSimon Glass 1446494d708SSimon Glass *devp = NULL; 1456494d708SSimon Glass ret = uclass_get(id, &uc); 1466494d708SSimon Glass if (ret) 1476494d708SSimon Glass return ret; 1486494d708SSimon Glass 1496494d708SSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 1506494d708SSimon Glass if (!index--) { 1516494d708SSimon Glass *devp = dev; 1526494d708SSimon Glass return 0; 1536494d708SSimon Glass } 1546494d708SSimon Glass } 1556494d708SSimon Glass 1566494d708SSimon Glass return -ENODEV; 1576494d708SSimon Glass } 1586494d708SSimon Glass 159c1d6f919SPrzemyslaw Marczak int uclass_find_first_device(enum uclass_id id, struct udevice **devp) 160c1d6f919SPrzemyslaw Marczak { 161c1d6f919SPrzemyslaw Marczak struct uclass *uc; 162c1d6f919SPrzemyslaw Marczak int ret; 163c1d6f919SPrzemyslaw Marczak 164c1d6f919SPrzemyslaw Marczak *devp = NULL; 165c1d6f919SPrzemyslaw Marczak ret = uclass_get(id, &uc); 166c1d6f919SPrzemyslaw Marczak if (ret) 167c1d6f919SPrzemyslaw Marczak return ret; 168c1d6f919SPrzemyslaw Marczak if (list_empty(&uc->dev_head)) 169c1d6f919SPrzemyslaw Marczak return 0; 170c1d6f919SPrzemyslaw Marczak 171c1d6f919SPrzemyslaw Marczak *devp = list_first_entry(&uc->dev_head, struct udevice, uclass_node); 172c1d6f919SPrzemyslaw Marczak 173c1d6f919SPrzemyslaw Marczak return 0; 174c1d6f919SPrzemyslaw Marczak } 175c1d6f919SPrzemyslaw Marczak 176c1d6f919SPrzemyslaw Marczak int uclass_find_next_device(struct udevice **devp) 177c1d6f919SPrzemyslaw Marczak { 178c1d6f919SPrzemyslaw Marczak struct udevice *dev = *devp; 179c1d6f919SPrzemyslaw Marczak 180c1d6f919SPrzemyslaw Marczak *devp = NULL; 181c1d6f919SPrzemyslaw Marczak if (list_is_last(&dev->uclass_node, &dev->uclass->dev_head)) 182c1d6f919SPrzemyslaw Marczak return 0; 183c1d6f919SPrzemyslaw Marczak 184c1d6f919SPrzemyslaw Marczak *devp = list_entry(dev->uclass_node.next, struct udevice, uclass_node); 185c1d6f919SPrzemyslaw Marczak 186c1d6f919SPrzemyslaw Marczak return 0; 187c1d6f919SPrzemyslaw Marczak } 188c1d6f919SPrzemyslaw Marczak 189*e0735a4cSPrzemyslaw Marczak int uclass_find_device_by_name(enum uclass_id id, const char *name, 190*e0735a4cSPrzemyslaw Marczak struct udevice **devp) 191*e0735a4cSPrzemyslaw Marczak { 192*e0735a4cSPrzemyslaw Marczak struct uclass *uc; 193*e0735a4cSPrzemyslaw Marczak struct udevice *dev; 194*e0735a4cSPrzemyslaw Marczak int ret; 195*e0735a4cSPrzemyslaw Marczak 196*e0735a4cSPrzemyslaw Marczak *devp = NULL; 197*e0735a4cSPrzemyslaw Marczak if (!name) 198*e0735a4cSPrzemyslaw Marczak return -EINVAL; 199*e0735a4cSPrzemyslaw Marczak ret = uclass_get(id, &uc); 200*e0735a4cSPrzemyslaw Marczak if (ret) 201*e0735a4cSPrzemyslaw Marczak return ret; 202*e0735a4cSPrzemyslaw Marczak 203*e0735a4cSPrzemyslaw Marczak list_for_each_entry(dev, &uc->dev_head, uclass_node) { 204*e0735a4cSPrzemyslaw Marczak if (!strncmp(dev->name, name, strlen(name))) { 205*e0735a4cSPrzemyslaw Marczak *devp = dev; 206*e0735a4cSPrzemyslaw Marczak return 0; 207*e0735a4cSPrzemyslaw Marczak } 208*e0735a4cSPrzemyslaw Marczak } 209*e0735a4cSPrzemyslaw Marczak 210*e0735a4cSPrzemyslaw Marczak return -ENODEV; 211*e0735a4cSPrzemyslaw Marczak } 212*e0735a4cSPrzemyslaw Marczak 2135a66a8ffSSimon Glass int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, 2145a66a8ffSSimon Glass bool find_req_seq, struct udevice **devp) 2155a66a8ffSSimon Glass { 2165a66a8ffSSimon Glass struct uclass *uc; 2175a66a8ffSSimon Glass struct udevice *dev; 2185a66a8ffSSimon Glass int ret; 2195a66a8ffSSimon Glass 2205a66a8ffSSimon Glass *devp = NULL; 2215a66a8ffSSimon Glass debug("%s: %d %d\n", __func__, find_req_seq, seq_or_req_seq); 2225a66a8ffSSimon Glass if (seq_or_req_seq == -1) 2235a66a8ffSSimon Glass return -ENODEV; 2245a66a8ffSSimon Glass ret = uclass_get(id, &uc); 2255a66a8ffSSimon Glass if (ret) 2265a66a8ffSSimon Glass return ret; 2275a66a8ffSSimon Glass 2285a66a8ffSSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 2295a66a8ffSSimon Glass debug(" - %d %d\n", dev->req_seq, dev->seq); 2305a66a8ffSSimon Glass if ((find_req_seq ? dev->req_seq : dev->seq) == 2315a66a8ffSSimon Glass seq_or_req_seq) { 2325a66a8ffSSimon Glass *devp = dev; 2335a66a8ffSSimon Glass debug(" - found\n"); 2345a66a8ffSSimon Glass return 0; 2355a66a8ffSSimon Glass } 2365a66a8ffSSimon Glass } 2375a66a8ffSSimon Glass debug(" - not found\n"); 2385a66a8ffSSimon Glass 2395a66a8ffSSimon Glass return -ENODEV; 2405a66a8ffSSimon Glass } 2415a66a8ffSSimon Glass 242f4cdead2SSimon Glass static int uclass_find_device_by_of_offset(enum uclass_id id, int node, 243f4cdead2SSimon Glass struct udevice **devp) 244f4cdead2SSimon Glass { 245f4cdead2SSimon Glass struct uclass *uc; 246f4cdead2SSimon Glass struct udevice *dev; 247f4cdead2SSimon Glass int ret; 248f4cdead2SSimon Glass 249f4cdead2SSimon Glass *devp = NULL; 250f4cdead2SSimon Glass if (node < 0) 251f4cdead2SSimon Glass return -ENODEV; 252f4cdead2SSimon Glass ret = uclass_get(id, &uc); 253f4cdead2SSimon Glass if (ret) 254f4cdead2SSimon Glass return ret; 255f4cdead2SSimon Glass 256f4cdead2SSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 257f4cdead2SSimon Glass if (dev->of_offset == node) { 258f4cdead2SSimon Glass *devp = dev; 259f4cdead2SSimon Glass return 0; 260f4cdead2SSimon Glass } 261f4cdead2SSimon Glass } 262f4cdead2SSimon Glass 263f4cdead2SSimon Glass return -ENODEV; 264f4cdead2SSimon Glass } 265f4cdead2SSimon Glass 2669ca296a1SSimon Glass /** 2679ca296a1SSimon Glass * uclass_get_device_tail() - handle the end of a get_device call 2689ca296a1SSimon Glass * 2699ca296a1SSimon Glass * This handles returning an error or probing a device as needed. 2709ca296a1SSimon Glass * 2719ca296a1SSimon Glass * @dev: Device that needs to be probed 2729ca296a1SSimon Glass * @ret: Error to return. If non-zero then the device is not probed 2739ca296a1SSimon Glass * @devp: Returns the value of 'dev' if there is no error 2749ca296a1SSimon Glass * @return ret, if non-zero, else the result of the device_probe() call 2759ca296a1SSimon Glass */ 2769ca296a1SSimon Glass static int uclass_get_device_tail(struct udevice *dev, int ret, 2779ca296a1SSimon Glass struct udevice **devp) 2786494d708SSimon Glass { 2796494d708SSimon Glass if (ret) 2806494d708SSimon Glass return ret; 2816494d708SSimon Glass 2826494d708SSimon Glass ret = device_probe(dev); 2836494d708SSimon Glass if (ret) 2846494d708SSimon Glass return ret; 2856494d708SSimon Glass 2866494d708SSimon Glass *devp = dev; 2876494d708SSimon Glass 2886494d708SSimon Glass return 0; 2896494d708SSimon Glass } 2906494d708SSimon Glass 2919ca296a1SSimon Glass int uclass_get_device(enum uclass_id id, int index, struct udevice **devp) 2929ca296a1SSimon Glass { 2939ca296a1SSimon Glass struct udevice *dev; 2949ca296a1SSimon Glass int ret; 2959ca296a1SSimon Glass 2969ca296a1SSimon Glass *devp = NULL; 2979ca296a1SSimon Glass ret = uclass_find_device(id, index, &dev); 2989ca296a1SSimon Glass return uclass_get_device_tail(dev, ret, devp); 2999ca296a1SSimon Glass } 3009ca296a1SSimon Glass 3015a66a8ffSSimon Glass int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp) 3025a66a8ffSSimon Glass { 3035a66a8ffSSimon Glass struct udevice *dev; 3045a66a8ffSSimon Glass int ret; 3055a66a8ffSSimon Glass 3065a66a8ffSSimon Glass *devp = NULL; 3075a66a8ffSSimon Glass ret = uclass_find_device_by_seq(id, seq, false, &dev); 3085a66a8ffSSimon Glass if (ret == -ENODEV) { 3095a66a8ffSSimon Glass /* 3105a66a8ffSSimon Glass * We didn't find it in probed devices. See if there is one 3115a66a8ffSSimon Glass * that will request this seq if probed. 3125a66a8ffSSimon Glass */ 3135a66a8ffSSimon Glass ret = uclass_find_device_by_seq(id, seq, true, &dev); 3145a66a8ffSSimon Glass } 3155a66a8ffSSimon Glass return uclass_get_device_tail(dev, ret, devp); 3165a66a8ffSSimon Glass } 3175a66a8ffSSimon Glass 318f4cdead2SSimon Glass int uclass_get_device_by_of_offset(enum uclass_id id, int node, 319f4cdead2SSimon Glass struct udevice **devp) 320f4cdead2SSimon Glass { 321f4cdead2SSimon Glass struct udevice *dev; 322f4cdead2SSimon Glass int ret; 323f4cdead2SSimon Glass 324f4cdead2SSimon Glass *devp = NULL; 325f4cdead2SSimon Glass ret = uclass_find_device_by_of_offset(id, node, &dev); 326f4cdead2SSimon Glass return uclass_get_device_tail(dev, ret, devp); 327f4cdead2SSimon Glass } 328f4cdead2SSimon Glass 32954c5d08aSHeiko Schocher int uclass_first_device(enum uclass_id id, struct udevice **devp) 3306494d708SSimon Glass { 33154c5d08aSHeiko Schocher struct udevice *dev; 3326494d708SSimon Glass int ret; 3336494d708SSimon Glass 3346494d708SSimon Glass *devp = NULL; 335c1d6f919SPrzemyslaw Marczak ret = uclass_find_first_device(id, &dev); 336c1d6f919SPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 3376494d708SSimon Glass } 3386494d708SSimon Glass 33954c5d08aSHeiko Schocher int uclass_next_device(struct udevice **devp) 3406494d708SSimon Glass { 34154c5d08aSHeiko Schocher struct udevice *dev = *devp; 3426494d708SSimon Glass int ret; 3436494d708SSimon Glass 3446494d708SSimon Glass *devp = NULL; 345c1d6f919SPrzemyslaw Marczak ret = uclass_find_next_device(&dev); 346c1d6f919SPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 3476494d708SSimon Glass } 3486494d708SSimon Glass 34954c5d08aSHeiko Schocher int uclass_bind_device(struct udevice *dev) 3506494d708SSimon Glass { 3516494d708SSimon Glass struct uclass *uc; 3526494d708SSimon Glass int ret; 3536494d708SSimon Glass 3546494d708SSimon Glass uc = dev->uclass; 3556494d708SSimon Glass list_add_tail(&dev->uclass_node, &uc->dev_head); 3566494d708SSimon Glass 357081f2fcbSSimon Glass if (dev->parent) { 358081f2fcbSSimon Glass struct uclass_driver *uc_drv = dev->parent->uclass->uc_drv; 359081f2fcbSSimon Glass 360081f2fcbSSimon Glass if (uc_drv->child_post_bind) { 361081f2fcbSSimon Glass ret = uc_drv->child_post_bind(dev); 362081f2fcbSSimon Glass if (ret) 363081f2fcbSSimon Glass goto err; 364081f2fcbSSimon Glass } 365081f2fcbSSimon Glass } 3666494d708SSimon Glass if (uc->uc_drv->post_bind) { 3676494d708SSimon Glass ret = uc->uc_drv->post_bind(dev); 368081f2fcbSSimon Glass if (ret) 369081f2fcbSSimon Glass goto err; 3706494d708SSimon Glass } 3716494d708SSimon Glass 3726494d708SSimon Glass return 0; 373081f2fcbSSimon Glass err: 374081f2fcbSSimon Glass /* There is no need to undo the parent's post_bind call */ 375081f2fcbSSimon Glass list_del(&dev->uclass_node); 376081f2fcbSSimon Glass 377081f2fcbSSimon Glass return ret; 3786494d708SSimon Glass } 3796494d708SSimon Glass 38054c5d08aSHeiko Schocher int uclass_unbind_device(struct udevice *dev) 3816494d708SSimon Glass { 3826494d708SSimon Glass struct uclass *uc; 3836494d708SSimon Glass int ret; 3846494d708SSimon Glass 3856494d708SSimon Glass uc = dev->uclass; 3866494d708SSimon Glass if (uc->uc_drv->pre_unbind) { 3876494d708SSimon Glass ret = uc->uc_drv->pre_unbind(dev); 3886494d708SSimon Glass if (ret) 3896494d708SSimon Glass return ret; 3906494d708SSimon Glass } 3916494d708SSimon Glass 3926494d708SSimon Glass list_del(&dev->uclass_node); 3936494d708SSimon Glass return 0; 3946494d708SSimon Glass } 3956494d708SSimon Glass 3965a66a8ffSSimon Glass int uclass_resolve_seq(struct udevice *dev) 3975a66a8ffSSimon Glass { 3985a66a8ffSSimon Glass struct udevice *dup; 3995a66a8ffSSimon Glass int seq; 4005a66a8ffSSimon Glass int ret; 4015a66a8ffSSimon Glass 4025a66a8ffSSimon Glass assert(dev->seq == -1); 4035a66a8ffSSimon Glass ret = uclass_find_device_by_seq(dev->uclass->uc_drv->id, dev->req_seq, 4045a66a8ffSSimon Glass false, &dup); 4055a66a8ffSSimon Glass if (!ret) { 4065a66a8ffSSimon Glass dm_warn("Device '%s': seq %d is in use by '%s'\n", 4075a66a8ffSSimon Glass dev->name, dev->req_seq, dup->name); 4085a66a8ffSSimon Glass } else if (ret == -ENODEV) { 4095a66a8ffSSimon Glass /* Our requested sequence number is available */ 4105a66a8ffSSimon Glass if (dev->req_seq != -1) 4115a66a8ffSSimon Glass return dev->req_seq; 4125a66a8ffSSimon Glass } else { 4135a66a8ffSSimon Glass return ret; 4145a66a8ffSSimon Glass } 4155a66a8ffSSimon Glass 4165a66a8ffSSimon Glass for (seq = 0; seq < DM_MAX_SEQ; seq++) { 4175a66a8ffSSimon Glass ret = uclass_find_device_by_seq(dev->uclass->uc_drv->id, seq, 4185a66a8ffSSimon Glass false, &dup); 4195a66a8ffSSimon Glass if (ret == -ENODEV) 4205a66a8ffSSimon Glass break; 4215a66a8ffSSimon Glass if (ret) 4225a66a8ffSSimon Glass return ret; 4235a66a8ffSSimon Glass } 4245a66a8ffSSimon Glass return seq; 4255a66a8ffSSimon Glass } 4265a66a8ffSSimon Glass 42702c07b37SSimon Glass int uclass_pre_probe_device(struct udevice *dev) 42883c7e434SSimon Glass { 42983c7e434SSimon Glass struct uclass_driver *uc_drv; 43002c07b37SSimon Glass int ret; 43102c07b37SSimon Glass 43202c07b37SSimon Glass uc_drv = dev->uclass->uc_drv; 43302c07b37SSimon Glass if (uc_drv->pre_probe) { 43402c07b37SSimon Glass ret = uc_drv->pre_probe(dev); 43502c07b37SSimon Glass if (ret) 43602c07b37SSimon Glass return ret; 43702c07b37SSimon Glass } 43883c7e434SSimon Glass 43983c7e434SSimon Glass if (!dev->parent) 44083c7e434SSimon Glass return 0; 44183c7e434SSimon Glass uc_drv = dev->parent->uclass->uc_drv; 44283c7e434SSimon Glass if (uc_drv->child_pre_probe) 44383c7e434SSimon Glass return uc_drv->child_pre_probe(dev); 44483c7e434SSimon Glass 44583c7e434SSimon Glass return 0; 44683c7e434SSimon Glass } 44783c7e434SSimon Glass 44854c5d08aSHeiko Schocher int uclass_post_probe_device(struct udevice *dev) 4496494d708SSimon Glass { 4506494d708SSimon Glass struct uclass_driver *uc_drv = dev->uclass->uc_drv; 4516494d708SSimon Glass 4526494d708SSimon Glass if (uc_drv->post_probe) 4536494d708SSimon Glass return uc_drv->post_probe(dev); 4546494d708SSimon Glass 4556494d708SSimon Glass return 0; 4566494d708SSimon Glass } 4576494d708SSimon Glass 45854c5d08aSHeiko Schocher int uclass_pre_remove_device(struct udevice *dev) 4596494d708SSimon Glass { 4606494d708SSimon Glass struct uclass_driver *uc_drv; 4616494d708SSimon Glass struct uclass *uc; 4626494d708SSimon Glass int ret; 4636494d708SSimon Glass 4646494d708SSimon Glass uc = dev->uclass; 4656494d708SSimon Glass uc_drv = uc->uc_drv; 4666494d708SSimon Glass if (uc->uc_drv->pre_remove) { 4676494d708SSimon Glass ret = uc->uc_drv->pre_remove(dev); 4686494d708SSimon Glass if (ret) 4696494d708SSimon Glass return ret; 4706494d708SSimon Glass } 4716494d708SSimon Glass if (uc_drv->per_device_auto_alloc_size) { 4726494d708SSimon Glass free(dev->uclass_priv); 4736494d708SSimon Glass dev->uclass_priv = NULL; 4746494d708SSimon Glass } 4755a66a8ffSSimon Glass dev->seq = -1; 4766494d708SSimon Glass 4776494d708SSimon Glass return 0; 4786494d708SSimon Glass } 479