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 159*c1d6f919SPrzemyslaw Marczak int uclass_find_first_device(enum uclass_id id, struct udevice **devp) 160*c1d6f919SPrzemyslaw Marczak { 161*c1d6f919SPrzemyslaw Marczak struct uclass *uc; 162*c1d6f919SPrzemyslaw Marczak int ret; 163*c1d6f919SPrzemyslaw Marczak 164*c1d6f919SPrzemyslaw Marczak *devp = NULL; 165*c1d6f919SPrzemyslaw Marczak ret = uclass_get(id, &uc); 166*c1d6f919SPrzemyslaw Marczak if (ret) 167*c1d6f919SPrzemyslaw Marczak return ret; 168*c1d6f919SPrzemyslaw Marczak if (list_empty(&uc->dev_head)) 169*c1d6f919SPrzemyslaw Marczak return 0; 170*c1d6f919SPrzemyslaw Marczak 171*c1d6f919SPrzemyslaw Marczak *devp = list_first_entry(&uc->dev_head, struct udevice, uclass_node); 172*c1d6f919SPrzemyslaw Marczak 173*c1d6f919SPrzemyslaw Marczak return 0; 174*c1d6f919SPrzemyslaw Marczak } 175*c1d6f919SPrzemyslaw Marczak 176*c1d6f919SPrzemyslaw Marczak int uclass_find_next_device(struct udevice **devp) 177*c1d6f919SPrzemyslaw Marczak { 178*c1d6f919SPrzemyslaw Marczak struct udevice *dev = *devp; 179*c1d6f919SPrzemyslaw Marczak 180*c1d6f919SPrzemyslaw Marczak *devp = NULL; 181*c1d6f919SPrzemyslaw Marczak if (list_is_last(&dev->uclass_node, &dev->uclass->dev_head)) 182*c1d6f919SPrzemyslaw Marczak return 0; 183*c1d6f919SPrzemyslaw Marczak 184*c1d6f919SPrzemyslaw Marczak *devp = list_entry(dev->uclass_node.next, struct udevice, uclass_node); 185*c1d6f919SPrzemyslaw Marczak 186*c1d6f919SPrzemyslaw Marczak return 0; 187*c1d6f919SPrzemyslaw Marczak } 188*c1d6f919SPrzemyslaw Marczak 1895a66a8ffSSimon Glass int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, 1905a66a8ffSSimon Glass bool find_req_seq, struct udevice **devp) 1915a66a8ffSSimon Glass { 1925a66a8ffSSimon Glass struct uclass *uc; 1935a66a8ffSSimon Glass struct udevice *dev; 1945a66a8ffSSimon Glass int ret; 1955a66a8ffSSimon Glass 1965a66a8ffSSimon Glass *devp = NULL; 1975a66a8ffSSimon Glass debug("%s: %d %d\n", __func__, find_req_seq, seq_or_req_seq); 1985a66a8ffSSimon Glass if (seq_or_req_seq == -1) 1995a66a8ffSSimon Glass return -ENODEV; 2005a66a8ffSSimon Glass ret = uclass_get(id, &uc); 2015a66a8ffSSimon Glass if (ret) 2025a66a8ffSSimon Glass return ret; 2035a66a8ffSSimon Glass 2045a66a8ffSSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 2055a66a8ffSSimon Glass debug(" - %d %d\n", dev->req_seq, dev->seq); 2065a66a8ffSSimon Glass if ((find_req_seq ? dev->req_seq : dev->seq) == 2075a66a8ffSSimon Glass seq_or_req_seq) { 2085a66a8ffSSimon Glass *devp = dev; 2095a66a8ffSSimon Glass debug(" - found\n"); 2105a66a8ffSSimon Glass return 0; 2115a66a8ffSSimon Glass } 2125a66a8ffSSimon Glass } 2135a66a8ffSSimon Glass debug(" - not found\n"); 2145a66a8ffSSimon Glass 2155a66a8ffSSimon Glass return -ENODEV; 2165a66a8ffSSimon Glass } 2175a66a8ffSSimon Glass 218f4cdead2SSimon Glass static int uclass_find_device_by_of_offset(enum uclass_id id, int node, 219f4cdead2SSimon Glass struct udevice **devp) 220f4cdead2SSimon Glass { 221f4cdead2SSimon Glass struct uclass *uc; 222f4cdead2SSimon Glass struct udevice *dev; 223f4cdead2SSimon Glass int ret; 224f4cdead2SSimon Glass 225f4cdead2SSimon Glass *devp = NULL; 226f4cdead2SSimon Glass if (node < 0) 227f4cdead2SSimon Glass return -ENODEV; 228f4cdead2SSimon Glass ret = uclass_get(id, &uc); 229f4cdead2SSimon Glass if (ret) 230f4cdead2SSimon Glass return ret; 231f4cdead2SSimon Glass 232f4cdead2SSimon Glass list_for_each_entry(dev, &uc->dev_head, uclass_node) { 233f4cdead2SSimon Glass if (dev->of_offset == node) { 234f4cdead2SSimon Glass *devp = dev; 235f4cdead2SSimon Glass return 0; 236f4cdead2SSimon Glass } 237f4cdead2SSimon Glass } 238f4cdead2SSimon Glass 239f4cdead2SSimon Glass return -ENODEV; 240f4cdead2SSimon Glass } 241f4cdead2SSimon Glass 2429ca296a1SSimon Glass /** 2439ca296a1SSimon Glass * uclass_get_device_tail() - handle the end of a get_device call 2449ca296a1SSimon Glass * 2459ca296a1SSimon Glass * This handles returning an error or probing a device as needed. 2469ca296a1SSimon Glass * 2479ca296a1SSimon Glass * @dev: Device that needs to be probed 2489ca296a1SSimon Glass * @ret: Error to return. If non-zero then the device is not probed 2499ca296a1SSimon Glass * @devp: Returns the value of 'dev' if there is no error 2509ca296a1SSimon Glass * @return ret, if non-zero, else the result of the device_probe() call 2519ca296a1SSimon Glass */ 2529ca296a1SSimon Glass static int uclass_get_device_tail(struct udevice *dev, int ret, 2539ca296a1SSimon Glass struct udevice **devp) 2546494d708SSimon Glass { 2556494d708SSimon Glass if (ret) 2566494d708SSimon Glass return ret; 2576494d708SSimon Glass 2586494d708SSimon Glass ret = device_probe(dev); 2596494d708SSimon Glass if (ret) 2606494d708SSimon Glass return ret; 2616494d708SSimon Glass 2626494d708SSimon Glass *devp = dev; 2636494d708SSimon Glass 2646494d708SSimon Glass return 0; 2656494d708SSimon Glass } 2666494d708SSimon Glass 2679ca296a1SSimon Glass int uclass_get_device(enum uclass_id id, int index, struct udevice **devp) 2689ca296a1SSimon Glass { 2699ca296a1SSimon Glass struct udevice *dev; 2709ca296a1SSimon Glass int ret; 2719ca296a1SSimon Glass 2729ca296a1SSimon Glass *devp = NULL; 2739ca296a1SSimon Glass ret = uclass_find_device(id, index, &dev); 2749ca296a1SSimon Glass return uclass_get_device_tail(dev, ret, devp); 2759ca296a1SSimon Glass } 2769ca296a1SSimon Glass 2775a66a8ffSSimon Glass int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp) 2785a66a8ffSSimon Glass { 2795a66a8ffSSimon Glass struct udevice *dev; 2805a66a8ffSSimon Glass int ret; 2815a66a8ffSSimon Glass 2825a66a8ffSSimon Glass *devp = NULL; 2835a66a8ffSSimon Glass ret = uclass_find_device_by_seq(id, seq, false, &dev); 2845a66a8ffSSimon Glass if (ret == -ENODEV) { 2855a66a8ffSSimon Glass /* 2865a66a8ffSSimon Glass * We didn't find it in probed devices. See if there is one 2875a66a8ffSSimon Glass * that will request this seq if probed. 2885a66a8ffSSimon Glass */ 2895a66a8ffSSimon Glass ret = uclass_find_device_by_seq(id, seq, true, &dev); 2905a66a8ffSSimon Glass } 2915a66a8ffSSimon Glass return uclass_get_device_tail(dev, ret, devp); 2925a66a8ffSSimon Glass } 2935a66a8ffSSimon Glass 294f4cdead2SSimon Glass int uclass_get_device_by_of_offset(enum uclass_id id, int node, 295f4cdead2SSimon Glass struct udevice **devp) 296f4cdead2SSimon Glass { 297f4cdead2SSimon Glass struct udevice *dev; 298f4cdead2SSimon Glass int ret; 299f4cdead2SSimon Glass 300f4cdead2SSimon Glass *devp = NULL; 301f4cdead2SSimon Glass ret = uclass_find_device_by_of_offset(id, node, &dev); 302f4cdead2SSimon Glass return uclass_get_device_tail(dev, ret, devp); 303f4cdead2SSimon Glass } 304f4cdead2SSimon Glass 30554c5d08aSHeiko Schocher int uclass_first_device(enum uclass_id id, struct udevice **devp) 3066494d708SSimon Glass { 30754c5d08aSHeiko Schocher struct udevice *dev; 3086494d708SSimon Glass int ret; 3096494d708SSimon Glass 3106494d708SSimon Glass *devp = NULL; 311*c1d6f919SPrzemyslaw Marczak ret = uclass_find_first_device(id, &dev); 312*c1d6f919SPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 3136494d708SSimon Glass } 3146494d708SSimon Glass 31554c5d08aSHeiko Schocher int uclass_next_device(struct udevice **devp) 3166494d708SSimon Glass { 31754c5d08aSHeiko Schocher struct udevice *dev = *devp; 3186494d708SSimon Glass int ret; 3196494d708SSimon Glass 3206494d708SSimon Glass *devp = NULL; 321*c1d6f919SPrzemyslaw Marczak ret = uclass_find_next_device(&dev); 322*c1d6f919SPrzemyslaw Marczak return uclass_get_device_tail(dev, ret, devp); 3236494d708SSimon Glass } 3246494d708SSimon Glass 32554c5d08aSHeiko Schocher int uclass_bind_device(struct udevice *dev) 3266494d708SSimon Glass { 3276494d708SSimon Glass struct uclass *uc; 3286494d708SSimon Glass int ret; 3296494d708SSimon Glass 3306494d708SSimon Glass uc = dev->uclass; 3316494d708SSimon Glass list_add_tail(&dev->uclass_node, &uc->dev_head); 3326494d708SSimon Glass 333081f2fcbSSimon Glass if (dev->parent) { 334081f2fcbSSimon Glass struct uclass_driver *uc_drv = dev->parent->uclass->uc_drv; 335081f2fcbSSimon Glass 336081f2fcbSSimon Glass if (uc_drv->child_post_bind) { 337081f2fcbSSimon Glass ret = uc_drv->child_post_bind(dev); 338081f2fcbSSimon Glass if (ret) 339081f2fcbSSimon Glass goto err; 340081f2fcbSSimon Glass } 341081f2fcbSSimon Glass } 3426494d708SSimon Glass if (uc->uc_drv->post_bind) { 3436494d708SSimon Glass ret = uc->uc_drv->post_bind(dev); 344081f2fcbSSimon Glass if (ret) 345081f2fcbSSimon Glass goto err; 3466494d708SSimon Glass } 3476494d708SSimon Glass 3486494d708SSimon Glass return 0; 349081f2fcbSSimon Glass err: 350081f2fcbSSimon Glass /* There is no need to undo the parent's post_bind call */ 351081f2fcbSSimon Glass list_del(&dev->uclass_node); 352081f2fcbSSimon Glass 353081f2fcbSSimon Glass return ret; 3546494d708SSimon Glass } 3556494d708SSimon Glass 35654c5d08aSHeiko Schocher int uclass_unbind_device(struct udevice *dev) 3576494d708SSimon Glass { 3586494d708SSimon Glass struct uclass *uc; 3596494d708SSimon Glass int ret; 3606494d708SSimon Glass 3616494d708SSimon Glass uc = dev->uclass; 3626494d708SSimon Glass if (uc->uc_drv->pre_unbind) { 3636494d708SSimon Glass ret = uc->uc_drv->pre_unbind(dev); 3646494d708SSimon Glass if (ret) 3656494d708SSimon Glass return ret; 3666494d708SSimon Glass } 3676494d708SSimon Glass 3686494d708SSimon Glass list_del(&dev->uclass_node); 3696494d708SSimon Glass return 0; 3706494d708SSimon Glass } 3716494d708SSimon Glass 3725a66a8ffSSimon Glass int uclass_resolve_seq(struct udevice *dev) 3735a66a8ffSSimon Glass { 3745a66a8ffSSimon Glass struct udevice *dup; 3755a66a8ffSSimon Glass int seq; 3765a66a8ffSSimon Glass int ret; 3775a66a8ffSSimon Glass 3785a66a8ffSSimon Glass assert(dev->seq == -1); 3795a66a8ffSSimon Glass ret = uclass_find_device_by_seq(dev->uclass->uc_drv->id, dev->req_seq, 3805a66a8ffSSimon Glass false, &dup); 3815a66a8ffSSimon Glass if (!ret) { 3825a66a8ffSSimon Glass dm_warn("Device '%s': seq %d is in use by '%s'\n", 3835a66a8ffSSimon Glass dev->name, dev->req_seq, dup->name); 3845a66a8ffSSimon Glass } else if (ret == -ENODEV) { 3855a66a8ffSSimon Glass /* Our requested sequence number is available */ 3865a66a8ffSSimon Glass if (dev->req_seq != -1) 3875a66a8ffSSimon Glass return dev->req_seq; 3885a66a8ffSSimon Glass } else { 3895a66a8ffSSimon Glass return ret; 3905a66a8ffSSimon Glass } 3915a66a8ffSSimon Glass 3925a66a8ffSSimon Glass for (seq = 0; seq < DM_MAX_SEQ; seq++) { 3935a66a8ffSSimon Glass ret = uclass_find_device_by_seq(dev->uclass->uc_drv->id, seq, 3945a66a8ffSSimon Glass false, &dup); 3955a66a8ffSSimon Glass if (ret == -ENODEV) 3965a66a8ffSSimon Glass break; 3975a66a8ffSSimon Glass if (ret) 3985a66a8ffSSimon Glass return ret; 3995a66a8ffSSimon Glass } 4005a66a8ffSSimon Glass return seq; 4015a66a8ffSSimon Glass } 4025a66a8ffSSimon Glass 40302c07b37SSimon Glass int uclass_pre_probe_device(struct udevice *dev) 40483c7e434SSimon Glass { 40583c7e434SSimon Glass struct uclass_driver *uc_drv; 40602c07b37SSimon Glass int ret; 40702c07b37SSimon Glass 40802c07b37SSimon Glass uc_drv = dev->uclass->uc_drv; 40902c07b37SSimon Glass if (uc_drv->pre_probe) { 41002c07b37SSimon Glass ret = uc_drv->pre_probe(dev); 41102c07b37SSimon Glass if (ret) 41202c07b37SSimon Glass return ret; 41302c07b37SSimon Glass } 41483c7e434SSimon Glass 41583c7e434SSimon Glass if (!dev->parent) 41683c7e434SSimon Glass return 0; 41783c7e434SSimon Glass uc_drv = dev->parent->uclass->uc_drv; 41883c7e434SSimon Glass if (uc_drv->child_pre_probe) 41983c7e434SSimon Glass return uc_drv->child_pre_probe(dev); 42083c7e434SSimon Glass 42183c7e434SSimon Glass return 0; 42283c7e434SSimon Glass } 42383c7e434SSimon Glass 42454c5d08aSHeiko Schocher int uclass_post_probe_device(struct udevice *dev) 4256494d708SSimon Glass { 4266494d708SSimon Glass struct uclass_driver *uc_drv = dev->uclass->uc_drv; 4276494d708SSimon Glass 4286494d708SSimon Glass if (uc_drv->post_probe) 4296494d708SSimon Glass return uc_drv->post_probe(dev); 4306494d708SSimon Glass 4316494d708SSimon Glass return 0; 4326494d708SSimon Glass } 4336494d708SSimon Glass 43454c5d08aSHeiko Schocher int uclass_pre_remove_device(struct udevice *dev) 4356494d708SSimon Glass { 4366494d708SSimon Glass struct uclass_driver *uc_drv; 4376494d708SSimon Glass struct uclass *uc; 4386494d708SSimon Glass int ret; 4396494d708SSimon Glass 4406494d708SSimon Glass uc = dev->uclass; 4416494d708SSimon Glass uc_drv = uc->uc_drv; 4426494d708SSimon Glass if (uc->uc_drv->pre_remove) { 4436494d708SSimon Glass ret = uc->uc_drv->pre_remove(dev); 4446494d708SSimon Glass if (ret) 4456494d708SSimon Glass return ret; 4466494d708SSimon Glass } 4476494d708SSimon Glass if (uc_drv->per_device_auto_alloc_size) { 4486494d708SSimon Glass free(dev->uclass_priv); 4496494d708SSimon Glass dev->uclass_priv = NULL; 4506494d708SSimon Glass } 4515a66a8ffSSimon Glass dev->seq = -1; 4526494d708SSimon Glass 4536494d708SSimon Glass return 0; 4546494d708SSimon Glass } 455