test/dm/test-fdt.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2013 Google, Inc
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <errno.h>
   9 #include <fdtdec.h>
  10 #include <log.h>
  11 #include <malloc.h>
  12 #include <asm/io.h>
  13 #include <dm/test.h>
  14 #include <dm/root.h>
  15 #include <dm/device-internal.h>
  16 #include <dm/devres.h>
  17 #include <dm/uclass-internal.h>
  18 #include <dm/util.h>
  19 #include <dm/lists.h>
  20 #include <dm/of_access.h>
  21 #include <test/test.h>
  22 #include <test/ut.h>
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
  27 {
  28         const struct dm_test_pdata *pdata = dev->plat;
  29         struct dm_test_priv *priv = dev_get_priv(dev);
  30
  31         *pingret = pingval + pdata->ping_add;
  32         priv->ping_total += *pingret;
  33
  34         return 0;
  35 }
  36
  37 static const struct test_ops test_ops = {
  38         .ping = testfdt_drv_ping,
  39 };
  40
  41 static int testfdt_of_to_plat(struct udevice *dev)
  42 {
  43         struct dm_test_pdata *pdata = dev_get_plat(dev);
  44
  45         pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
  46                                         "ping-add", -1);
  47         pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
  48                                       "ping-expect");
  49
  50         return 0;
  51 }
  52
  53 static int testfdt_drv_probe(struct udevice *dev)
  54 {
  55         struct dm_test_priv *priv = dev_get_priv(dev);
  56
  57         priv->ping_total += DM_TEST_START_TOTAL;
  58
  59         /*
  60          * If this device is on a bus, the uclass_flag will be set before
  61          * calling this function. In the meantime the uclass_postp is
  62          * initlized to a value -1. These are used respectively by
  63          * dm_test_bus_child_pre_probe_uclass() and
  64          * dm_test_bus_child_post_probe_uclass().
  65          */
  66         priv->uclass_total += priv->uclass_flag;
  67         priv->uclass_postp = -1;
  68
  69         return 0;
  70 }
  71
  72 static const struct udevice_id testfdt_ids[] = {
  73         {
  74                 .compatible = "denx,u-boot-fdt-test",
  75                 .data = DM_TEST_TYPE_FIRST },
  76         {
  77                 .compatible = "google,another-fdt-test",
  78                 .data = DM_TEST_TYPE_SECOND },
  79         { }
  80 };
  81
  82 U_BOOT_DRIVER(testfdt_drv) = {
  83         .name   = "testfdt_drv",
  84         .of_match       = testfdt_ids,
  85         .id     = UCLASS_TEST_FDT,
  86         .of_to_plat = testfdt_of_to_plat,
  87         .probe  = testfdt_drv_probe,
  88         .ops    = &test_ops,
  89         .priv_auto      = sizeof(struct dm_test_priv),
  90         .plat_auto      = sizeof(struct dm_test_pdata),
  91 };
  92
  93 static const struct udevice_id testfdt1_ids[] = {
  94         {
  95                 .compatible = "denx,u-boot-fdt-test1",
  96                 .data = DM_TEST_TYPE_FIRST },
  97         { }
  98 };
  99
 100 U_BOOT_DRIVER(testfdt1_drv) = {
 101         .name   = "testfdt1_drv",
 102         .of_match       = testfdt1_ids,
 103         .id     = UCLASS_TEST_FDT,
 104         .of_to_plat = testfdt_of_to_plat,
 105         .probe  = testfdt_drv_probe,
 106         .ops    = &test_ops,
 107         .priv_auto      = sizeof(struct dm_test_priv),
 108         .plat_auto      = sizeof(struct dm_test_pdata),
 109         .flags = DM_FLAG_PRE_RELOC,
 110 };
 111
 112 /* From here is the testfdt uclass code */
 113 int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
 114 {
 115         const struct test_ops *ops = device_get_ops(dev);
 116
 117         if (!ops->ping)
 118                 return -ENOSYS;
 119
 120         return ops->ping(dev, pingval, pingret);
 121 }
 122
 123 UCLASS_DRIVER(testfdt) = {
 124         .name           = "testfdt",
 125         .id             = UCLASS_TEST_FDT,
 126         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 127 };
 128
 129 static const struct udevice_id testfdtm_ids[] = {
 130         { .compatible = "denx,u-boot-fdtm-test" },
 131         { }
 132 };
 133
 134 U_BOOT_DRIVER(testfdtm_drv) = {
 135         .name   = "testfdtm_drv",
 136         .of_match       = testfdtm_ids,
 137         .id     = UCLASS_TEST_FDT_MANUAL,
 138 };
 139
 140 UCLASS_DRIVER(testfdtm) = {
 141         .name           = "testfdtm",
 142         .id             = UCLASS_TEST_FDT_MANUAL,
 143         .flags          = DM_UC_FLAG_SEQ_ALIAS | DM_UC_FLAG_NO_AUTO_SEQ,
 144 };
 145
 146 struct dm_testprobe_pdata {
 147         int probe_err;
 148 };
 149
 150 static int testprobe_drv_probe(struct udevice *dev)
 151 {
 152         struct dm_testprobe_pdata *pdata = dev_get_plat(dev);
 153
 154         return pdata->probe_err;
 155 }
 156
 157 static const struct udevice_id testprobe_ids[] = {
 158         { .compatible = "denx,u-boot-probe-test" },
 159         { }
 160 };
 161
 162 U_BOOT_DRIVER(testprobe_drv) = {
 163         .name   = "testprobe_drv",
 164         .of_match       = testprobe_ids,
 165         .id     = UCLASS_TEST_PROBE,
 166         .probe  = testprobe_drv_probe,
 167         .plat_auto      = sizeof(struct dm_testprobe_pdata),
 168 };
 169
 170 UCLASS_DRIVER(testprobe) = {
 171         .name           = "testprobe",
 172         .id             = UCLASS_TEST_PROBE,
 173         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 174 };
 175
 176 struct dm_testdevres_pdata {
 177         void *ptr;
 178 };
 179
 180 struct dm_testdevres_priv {
 181         void *ptr;
 182         void *ptr_ofdata;
 183 };
 184
 185 static int testdevres_drv_bind(struct udevice *dev)
 186 {
 187         struct dm_testdevres_pdata *pdata = dev_get_plat(dev);
 188
 189         pdata->ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE, 0);
 190
 191         return 0;
 192 }
 193
 194 static int testdevres_drv_of_to_plat(struct udevice *dev)
 195 {
 196         struct dm_testdevres_priv *priv = dev_get_priv(dev);
 197
 198         priv->ptr_ofdata = devm_kmalloc(dev, TEST_DEVRES_SIZE3, 0);
 199
 200         return 0;
 201 }
 202
 203 static int testdevres_drv_probe(struct udevice *dev)
 204 {
 205         struct dm_testdevres_priv *priv = dev_get_priv(dev);
 206
 207         priv->ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE2, 0);
 208
 209         return 0;
 210 }
 211
 212 static const struct udevice_id testdevres_ids[] = {
 213         { .compatible = "denx,u-boot-devres-test" },
 214         { }
 215 };
 216
 217 U_BOOT_DRIVER(testdevres_drv) = {
 218         .name   = "testdevres_drv",
 219         .of_match       = testdevres_ids,
 220         .id     = UCLASS_TEST_DEVRES,
 221         .bind   = testdevres_drv_bind,
 222         .of_to_plat     = testdevres_drv_of_to_plat,
 223         .probe  = testdevres_drv_probe,
 224         .plat_auto      = sizeof(struct dm_testdevres_pdata),
 225         .priv_auto      = sizeof(struct dm_testdevres_priv),
 226 };
 227
 228 UCLASS_DRIVER(testdevres) = {
 229         .name           = "testdevres",
 230         .id             = UCLASS_TEST_DEVRES,
 231         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 232 };
 233
 234 int dm_check_devices(struct unit_test_state *uts, int num_devices)
 235 {
 236         struct udevice *dev;
 237         int ret;
 238         int i;
 239
 240         /*
 241          * Now check that the ping adds are what we expect. This is using the
 242          * ping-add property in each node.
 243          */
 244         for (i = 0; i < num_devices; i++) {
 245                 uint32_t base;
 246
 247                 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
 248                 ut_assert(!ret);
 249
 250                 /*
 251                  * Get the 'ping-expect' property, which tells us what the
 252                  * ping add should be. We don't use the plat because we
 253                  * want to test the code that sets that up
 254                  * (testfdt_drv_probe()).
 255                  */
 256                 base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
 257                                        "ping-expect");
 258                 debug("dev=%d, base=%d: %s\n", i, base,
 259                       fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL));
 260
 261                 ut_assert(!dm_check_operations(uts, dev, base,
 262                                                dev_get_priv(dev)));
 263         }
 264
 265         return 0;
 266 }
 267
 268 /* Test that FDT-based binding works correctly */
 269 static int dm_test_fdt(struct unit_test_state *uts)
 270 {
 271         const int num_devices = 9;
 272         struct udevice *dev;
 273         struct uclass *uc;
 274         int ret;
 275         int i;
 276
 277         ret = dm_extended_scan(false);
 278         ut_assert(!ret);
 279
 280         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 281         ut_assert(!ret);
 282
 283         /* These are num_devices compatible root-level device tree nodes */
 284         ut_asserteq(num_devices, list_count_items(&uc->dev_head));
 285
 286         /* Each should have platform data but no private data */
 287         for (i = 0; i < num_devices; i++) {
 288                 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
 289                 ut_assert(!ret);
 290                 ut_assert(!dev_get_priv(dev));
 291                 ut_assert(dev->plat);
 292         }
 293
 294         ut_assertok(dm_check_devices(uts, num_devices));
 295
 296         return 0;
 297 }
 298 DM_TEST(dm_test_fdt, 0);
 299
 300 static int dm_test_alias_highest_id(struct unit_test_state *uts)
 301 {
 302         int ret;
 303
 304         ret = dev_read_alias_highest_id("eth");
 305         ut_asserteq(5, ret);
 306
 307         ret = dev_read_alias_highest_id("gpio");
 308         ut_asserteq(3, ret);
 309
 310         ret = dev_read_alias_highest_id("pci");
 311         ut_asserteq(2, ret);
 312
 313         ret = dev_read_alias_highest_id("i2c");
 314         ut_asserteq(0, ret);
 315
 316         ret = dev_read_alias_highest_id("deadbeef");
 317         ut_asserteq(-1, ret);
 318
 319         return 0;
 320 }
 321 DM_TEST(dm_test_alias_highest_id, 0);
 322
 323 static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
 324 {
 325         struct uclass *uc;
 326         int ret;
 327
 328         ret = dm_scan_fdt(true);
 329         ut_assert(!ret);
 330
 331         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 332         ut_assert(!ret);
 333
 334         /*
 335          * These are 2 pre-reloc devices:
 336          * one with "u-boot,dm-pre-reloc" property (a-test node), and the other
 337          * one whose driver marked with DM_FLAG_PRE_RELOC flag (h-test node).
 338          */
 339         ut_asserteq(2, list_count_items(&uc->dev_head));
 340
 341         return 0;
 342 }
 343 DM_TEST(dm_test_fdt_pre_reloc, 0);
 344
 345 /* Test that sequence numbers are allocated properly */
 346 static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
 347 {
 348         struct udevice *dev;
 349
 350         /* A few basic santiy tests */
 351         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
 352         ut_asserteq_str("b-test", dev->name);
 353         ut_asserteq(3, dev_seq(dev));
 354
 355         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
 356         ut_asserteq_str("a-test", dev->name);
 357         ut_asserteq(8, dev_seq(dev));
 358
 359         /*
 360          * This device has no alias so gets the next value after all available
 361          * aliases. The last alias is testfdt12
 362          */
 363         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 13, true, &dev));
 364         ut_asserteq_str("d-test", dev->name);
 365         ut_asserteq(13, dev_seq(dev));
 366
 367         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 9, true,
 368                                                        &dev));
 369         ut_asserteq_ptr(NULL, dev);
 370
 371         /* Test aliases */
 372         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
 373         ut_asserteq_str("e-test", dev->name);
 374         ut_asserteq(6, dev_seq(dev));
 375
 376         /*
 377          * Note that c-test nodes are not probed since it is not a top-level
 378          * node
 379          */
 380         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
 381         ut_asserteq_str("b-test", dev->name);
 382         ut_asserteq(3, dev_seq(dev));
 383
 384         /*
 385          * d-test wants sequence number 3 also, but it can't have it because
 386          * b-test gets it first.
 387          */
 388         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
 389         ut_asserteq_str("d-test", dev->name);
 390         ut_asserteq(13, dev_seq(dev));
 391
 392         /* g-test gets the next value after f-test */
 393         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 15, &dev));
 394         ut_asserteq_str("g-test", dev->name);
 395         ut_asserteq(15, dev_seq(dev));
 396
 397         /* And we should still have holes in our sequence numbers */
 398         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 0, true,
 399                                                        &dev));
 400         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 1, true,
 401                                                        &dev));
 402         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 2, true,
 403                                                        &dev));
 404         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 4, true,
 405                                                        &dev));
 406         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7, true,
 407                                                        &dev));
 408         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 9, true,
 409                                                        &dev));
 410         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 10,
 411                                                        true, &dev));
 412         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 11,
 413                                                        true, &dev));
 414
 415         return 0;
 416 }
 417 DM_TEST(dm_test_fdt_uclass_seq, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 418
 419 /* More tests for sequence numbers */
 420 static int dm_test_fdt_uclass_seq_manual(struct unit_test_state *uts)
 421 {
 422         struct udevice *dev;
 423
 424         /*
 425          * Since DM_UC_FLAG_NO_AUTO_SEQ is set for this uclass, only testfdtm1
 426          * should get a sequence number assigned
 427          */
 428         ut_assertok(uclass_get_device(UCLASS_TEST_FDT_MANUAL, 0, &dev));
 429         ut_asserteq_str("testfdtm0", dev->name);
 430         ut_asserteq(-1, dev_seq(dev));
 431
 432         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT_MANUAL, 1, &dev));
 433         ut_asserteq_str("testfdtm1", dev->name);
 434         ut_asserteq(1, dev_seq(dev));
 435
 436         ut_assertok(uclass_get_device(UCLASS_TEST_FDT_MANUAL, 2, &dev));
 437         ut_asserteq_str("testfdtm2", dev->name);
 438         ut_asserteq(-1, dev_seq(dev));
 439
 440         return 0;
 441 }
 442 DM_TEST(dm_test_fdt_uclass_seq_manual, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 443
 444 /* Test that we can find a device by device tree offset */
 445 static int dm_test_fdt_offset(struct unit_test_state *uts)
 446 {
 447         const void *blob = gd->fdt_blob;
 448         struct udevice *dev;
 449         int node;
 450
 451         node = fdt_path_offset(blob, "/e-test");
 452         ut_assert(node > 0);
 453         ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
 454                                                    &dev));
 455         ut_asserteq_str("e-test", dev->name);
 456
 457         /* This node should not be bound */
 458         node = fdt_path_offset(blob, "/junk");
 459         ut_assert(node > 0);
 460         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 461                                                             node, &dev));
 462
 463         /* This is not a top level node so should not be probed */
 464         node = fdt_path_offset(blob, "/some-bus/c-test@5");
 465         ut_assert(node > 0);
 466         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 467                                                             node, &dev));
 468
 469         return 0;
 470 }
 471 DM_TEST(dm_test_fdt_offset,
 472         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 473
 474 /**
 475  * Test various error conditions with uclass_first_device() and
 476  * uclass_next_device()
 477  */
 478 static int dm_test_first_next_device(struct unit_test_state *uts)
 479 {
 480         struct dm_testprobe_pdata *pdata;
 481         struct udevice *dev, *parent = NULL;
 482         int count;
 483         int ret;
 484
 485         /* There should be 4 devices */
 486         for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0;
 487              dev;
 488              ret = uclass_next_device(&dev)) {
 489                 count++;
 490                 parent = dev_get_parent(dev);
 491                 }
 492         ut_assertok(ret);
 493         ut_asserteq(4, count);
 494
 495         /* Remove them and try again, with an error on the second one */
 496         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev));
 497         pdata = dev_get_plat(dev);
 498         pdata->probe_err = -ENOMEM;
 499         device_remove(parent, DM_REMOVE_NORMAL);
 500         ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev));
 501         ut_asserteq(-ENOMEM, uclass_next_device(&dev));
 502         ut_asserteq_ptr(dev, NULL);
 503
 504         /* Now an error on the first one */
 505         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev));
 506         pdata = dev_get_plat(dev);
 507         pdata->probe_err = -ENOENT;
 508         device_remove(parent, DM_REMOVE_NORMAL);
 509         ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev));
 510
 511         return 0;
 512 }
 513 DM_TEST(dm_test_first_next_device, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 514
 515 /* Test iteration through devices in a uclass */
 516 static int dm_test_uclass_foreach(struct unit_test_state *uts)
 517 {
 518         struct udevice *dev;
 519         struct uclass *uc;
 520         int count;
 521
 522         count = 0;
 523         uclass_id_foreach_dev(UCLASS_TEST_FDT, dev, uc)
 524                 count++;
 525         ut_asserteq(9, count);
 526
 527         count = 0;
 528         uclass_foreach_dev(dev, uc)
 529                 count++;
 530         ut_asserteq(9, count);
 531
 532         return 0;
 533 }
 534 DM_TEST(dm_test_uclass_foreach, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 535
 536 /**
 537  * check_devices() - Check return values and pointers
 538  *
 539  * This runs through a full sequence of uclass_first_device_check()...
 540  * uclass_next_device_check() checking that the return values and devices
 541  * are correct.
 542  *
 543  * @uts: Test state
 544  * @devlist: List of expected devices
 545  * @mask: Indicates which devices should return an error. Device n should
 546  *        return error (-NOENT - n) if bit n is set, or no error (i.e. 0) if
 547  *        bit n is clear.
 548  */
 549 static int check_devices(struct unit_test_state *uts,
 550                          struct udevice *devlist[], int mask)
 551 {
 552         int expected_ret;
 553         struct udevice *dev;
 554         int i;
 555
 556         expected_ret = (mask & 1) ? -ENOENT : 0;
 557         mask >>= 1;
 558         ut_asserteq(expected_ret,
 559                     uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 560         for (i = 0; i < 4; i++) {
 561                 ut_asserteq_ptr(devlist[i], dev);
 562                 expected_ret = (mask & 1) ? -ENOENT - (i + 1) : 0;
 563                 mask >>= 1;
 564                 ut_asserteq(expected_ret, uclass_next_device_check(&dev));
 565         }
 566         ut_asserteq_ptr(NULL, dev);
 567
 568         return 0;
 569 }
 570
 571 /* Test uclass_first_device_check() and uclass_next_device_check() */
 572 static int dm_test_first_next_ok_device(struct unit_test_state *uts)
 573 {
 574         struct dm_testprobe_pdata *pdata;
 575         struct udevice *dev, *parent = NULL, *devlist[4];
 576         int count;
 577         int ret;
 578
 579         /* There should be 4 devices */
 580         count = 0;
 581         for (ret = uclass_first_device_check(UCLASS_TEST_PROBE, &dev);
 582              dev;
 583              ret = uclass_next_device_check(&dev)) {
 584                 ut_assertok(ret);
 585                 devlist[count++] = dev;
 586                 parent = dev_get_parent(dev);
 587                 }
 588         ut_asserteq(4, count);
 589         ut_assertok(uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 590         ut_assertok(check_devices(uts, devlist, 0));
 591
 592         /* Remove them and try again, with an error on the second one */
 593         pdata = dev_get_plat(devlist[1]);
 594         pdata->probe_err = -ENOENT - 1;
 595         device_remove(parent, DM_REMOVE_NORMAL);
 596         ut_assertok(check_devices(uts, devlist, 1 << 1));
 597
 598         /* Now an error on the first one */
 599         pdata = dev_get_plat(devlist[0]);
 600         pdata->probe_err = -ENOENT - 0;
 601         device_remove(parent, DM_REMOVE_NORMAL);
 602         ut_assertok(check_devices(uts, devlist, 3 << 0));
 603
 604         /* Now errors on all */
 605         pdata = dev_get_plat(devlist[2]);
 606         pdata->probe_err = -ENOENT - 2;
 607         pdata = dev_get_plat(devlist[3]);
 608         pdata->probe_err = -ENOENT - 3;
 609         device_remove(parent, DM_REMOVE_NORMAL);
 610         ut_assertok(check_devices(uts, devlist, 0xf << 0));
 611
 612         return 0;
 613 }
 614 DM_TEST(dm_test_first_next_ok_device, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 615
 616 static const struct udevice_id fdt_dummy_ids[] = {
 617         { .compatible = "denx,u-boot-fdt-dummy", },
 618         { }
 619 };
 620
 621 UCLASS_DRIVER(fdt_dummy) = {
 622         .name           = "fdt-dummy",
 623         .id             = UCLASS_TEST_DUMMY,
 624         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 625 };
 626
 627 U_BOOT_DRIVER(fdt_dummy_drv) = {
 628         .name   = "fdt_dummy_drv",
 629         .of_match       = fdt_dummy_ids,
 630         .id     = UCLASS_TEST_DUMMY,
 631 };
 632
 633 static int dm_test_fdt_translation(struct unit_test_state *uts)
 634 {
 635         struct udevice *dev;
 636         fdt32_t dma_addr[2];
 637
 638         /* Some simple translations */
 639         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 640         ut_asserteq_str("dev@0,0", dev->name);
 641         ut_asserteq(0x8000, dev_read_addr(dev));
 642
 643         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 644         ut_asserteq_str("dev@1,100", dev->name);
 645         ut_asserteq(0x9000, dev_read_addr(dev));
 646
 647         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 2, true, &dev));
 648         ut_asserteq_str("dev@2,200", dev->name);
 649         ut_asserteq(0xA000, dev_read_addr(dev));
 650
 651         /* No translation for busses with #size-cells == 0 */
 652         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 3, true, &dev));
 653         ut_asserteq_str("dev@42", dev->name);
 654         ut_asserteq(0x42, dev_read_addr(dev));
 655
 656         /* dma address translation */
 657         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 658         dma_addr[0] = cpu_to_be32(0);
 659         dma_addr[1] = cpu_to_be32(0);
 660         ut_asserteq(0x10000000, dev_translate_dma_address(dev, dma_addr));
 661
 662         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 663         dma_addr[0] = cpu_to_be32(1);
 664         dma_addr[1] = cpu_to_be32(0x100);
 665         ut_asserteq(0x20000000, dev_translate_dma_address(dev, dma_addr));
 666
 667         return 0;
 668 }
 669 DM_TEST(dm_test_fdt_translation, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 670
 671 static int dm_test_fdt_get_addr_ptr_flat(struct unit_test_state *uts)
 672 {
 673         struct udevice *gpio, *dev;
 674         void *ptr;
 675
 676         /* Test for missing reg property */
 677         ut_assertok(uclass_first_device_err(UCLASS_GPIO, &gpio));
 678         ut_assertnull(devfdt_get_addr_ptr(gpio));
 679
 680         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 681         ptr = devfdt_get_addr_ptr(dev);
 682         ut_asserteq_ptr((void *)0x8000, ptr);
 683
 684         return 0;
 685 }
 686 DM_TEST(dm_test_fdt_get_addr_ptr_flat,
 687         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 688
 689 static int dm_test_fdt_remap_addr_flat(struct unit_test_state *uts)
 690 {
 691         struct udevice *dev;
 692         fdt_addr_t addr;
 693         void *paddr;
 694
 695         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 696
 697         addr = devfdt_get_addr(dev);
 698         ut_asserteq(0x8000, addr);
 699
 700         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 701         ut_assertnonnull(paddr);
 702         ut_asserteq_ptr(paddr, devfdt_remap_addr(dev));
 703
 704         return 0;
 705 }
 706 DM_TEST(dm_test_fdt_remap_addr_flat,
 707         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 708
 709 static int dm_test_fdt_remap_addr_index_flat(struct unit_test_state *uts)
 710 {
 711         struct udevice *dev;
 712         fdt_addr_t addr;
 713         fdt_size_t size;
 714         void *paddr;
 715
 716         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 717
 718         addr = devfdt_get_addr_size_index(dev, 0, &size);
 719         ut_asserteq(0x8000, addr);
 720         ut_asserteq(0x1000, size);
 721
 722         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 723         ut_assertnonnull(paddr);
 724         ut_asserteq_ptr(paddr, devfdt_remap_addr_index(dev, 0));
 725
 726         return 0;
 727 }
 728 DM_TEST(dm_test_fdt_remap_addr_index_flat,
 729         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 730
 731 static int dm_test_fdt_remap_addr_name_flat(struct unit_test_state *uts)
 732 {
 733         struct udevice *dev;
 734         fdt_addr_t addr;
 735         fdt_size_t size;
 736         void *paddr;
 737
 738         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 739
 740         addr = devfdt_get_addr_size_name(dev, "sandbox-dummy-0", &size);
 741         ut_asserteq(0x8000, addr);
 742         ut_asserteq(0x1000, size);
 743
 744         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 745         ut_assertnonnull(paddr);
 746         ut_asserteq_ptr(paddr, devfdt_remap_addr_name(dev, "sandbox-dummy-0"));
 747
 748         return 0;
 749 }
 750 DM_TEST(dm_test_fdt_remap_addr_name_flat,
 751         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 752
 753 static int dm_test_fdt_remap_addr_live(struct unit_test_state *uts)
 754 {
 755         struct udevice *dev;
 756         fdt_addr_t addr;
 757         void *paddr;
 758
 759         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 760
 761         addr = dev_read_addr(dev);
 762         ut_asserteq(0x8000, addr);
 763
 764         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 765         ut_assertnonnull(paddr);
 766         ut_asserteq_ptr(paddr, dev_remap_addr(dev));
 767
 768         return 0;
 769 }
 770 DM_TEST(dm_test_fdt_remap_addr_live,
 771         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 772
 773 static int dm_test_fdt_remap_addr_index_live(struct unit_test_state *uts)
 774 {
 775         struct udevice *dev;
 776         fdt_addr_t addr;
 777         fdt_size_t size;
 778         void *paddr;
 779
 780         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 781
 782         addr = dev_read_addr_size_index(dev, 0, &size);
 783         ut_asserteq(0x8000, addr);
 784         ut_asserteq(0x1000, size);
 785
 786         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 787         ut_assertnonnull(paddr);
 788         ut_asserteq_ptr(paddr, dev_remap_addr_index(dev, 0));
 789
 790         return 0;
 791 }
 792 DM_TEST(dm_test_fdt_remap_addr_index_live,
 793         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 794
 795 static int dm_test_fdt_remap_addr_name_live(struct unit_test_state *uts)
 796 {
 797         struct udevice *dev;
 798         fdt_addr_t addr;
 799         fdt_size_t size;
 800         void *paddr;
 801
 802         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 803
 804         addr = dev_read_addr_size_name(dev, "sandbox-dummy-0", &size);
 805         ut_asserteq(0x8000, addr);
 806         ut_asserteq(0x1000, size);
 807
 808         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 809         ut_assertnonnull(paddr);
 810         ut_asserteq_ptr(paddr, dev_remap_addr_name(dev, "sandbox-dummy-0"));
 811
 812         return 0;
 813 }
 814 DM_TEST(dm_test_fdt_remap_addr_name_live,
 815         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 816
 817 static int dm_test_fdt_livetree_writing(struct unit_test_state *uts)
 818 {
 819         struct udevice *dev;
 820         ofnode node;
 821
 822         if (!of_live_active()) {
 823                 printf("Live tree not active; ignore test\n");
 824                 return 0;
 825         }
 826
 827         /* Test enabling devices */
 828
 829         node = ofnode_path("/usb@2");
 830
 831         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 832         ofnode_set_enabled(node, true);
 833         ut_assert(of_device_is_available(ofnode_to_np(node)));
 834
 835         device_bind_driver_to_node(dm_root(), "usb_sandbox", "usb@2", node,
 836                                    &dev);
 837         ut_assertok(uclass_find_device_by_seq(UCLASS_USB, 2, true, &dev));
 838
 839         /* Test string property setting */
 840
 841         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 842         ofnode_write_string(node, "compatible", "gdsys,super-usb");
 843         ut_assert(device_is_compatible(dev, "gdsys,super-usb"));
 844         ofnode_write_string(node, "compatible", "sandbox,usb");
 845         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 846
 847         /* Test setting generic properties */
 848
 849         /* Non-existent in DTB */
 850         ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev));
 851         /* reg = 0x42, size = 0x100 */
 852         ut_assertok(ofnode_write_prop(node, "reg", 8,
 853                                       "\x00\x00\x00\x42\x00\x00\x01\x00"));
 854         ut_asserteq(0x42, dev_read_addr(dev));
 855
 856         /* Test disabling devices */
 857
 858         device_remove(dev, DM_REMOVE_NORMAL);
 859         device_unbind(dev);
 860
 861         ut_assert(of_device_is_available(ofnode_to_np(node)));
 862         ofnode_set_enabled(node, false);
 863         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 864
 865         return 0;
 866 }
 867 DM_TEST(dm_test_fdt_livetree_writing, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 868
 869 static int dm_test_fdt_disable_enable_by_path(struct unit_test_state *uts)
 870 {
 871         ofnode node;
 872
 873         if (!of_live_active()) {
 874                 printf("Live tree not active; ignore test\n");
 875                 return 0;
 876         }
 877
 878         node = ofnode_path("/usb@2");
 879
 880         /* Test enabling devices */
 881
 882         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 883         dev_enable_by_path("/usb@2");
 884         ut_assert(of_device_is_available(ofnode_to_np(node)));
 885
 886         /* Test disabling devices */
 887
 888         ut_assert(of_device_is_available(ofnode_to_np(node)));
 889         dev_disable_by_path("/usb@2");
 890         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 891
 892         return 0;
 893 }
 894 DM_TEST(dm_test_fdt_disable_enable_by_path, UT_TESTF_SCAN_PDATA |
 895                                             UT_TESTF_SCAN_FDT);
 896
 897 /* Test a few uclass phandle functions */
 898 static int dm_test_fdt_phandle(struct unit_test_state *uts)
 899 {
 900         struct udevice *back, *dev, *dev2;
 901
 902         ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
 903         ut_assertnonnull(back);
 904         ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR,
 905                                                         back, "missing", &dev));
 906         ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back,
 907                                                   "power-supply", &dev));
 908         ut_assertnonnull(dev);
 909         ut_asserteq(0, device_active(dev));
 910         ut_asserteq_str("ldo1", dev->name);
 911         ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back,
 912                                                  "power-supply", &dev2));
 913         ut_asserteq_ptr(dev, dev2);
 914
 915         return 0;
 916 }
 917 DM_TEST(dm_test_fdt_phandle, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 918
 919 /* Test device_find_first_child_by_uclass() */
 920 static int dm_test_first_child(struct unit_test_state *uts)
 921 {
 922         struct udevice *i2c, *dev, *dev2;
 923
 924         ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
 925         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_RTC, &dev));
 926         ut_asserteq_str("rtc@43", dev->name);
 927         ut_assertok(device_find_child_by_name(i2c, "rtc@43", &dev2));
 928         ut_asserteq_ptr(dev, dev2);
 929         ut_assertok(device_find_child_by_name(i2c, "rtc@61", &dev2));
 930         ut_asserteq_str("rtc@61", dev2->name);
 931
 932         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_I2C_EEPROM,
 933                                                       &dev));
 934         ut_asserteq_str("eeprom@2c", dev->name);
 935         ut_assertok(device_find_child_by_name(i2c, "eeprom@2c", &dev2));
 936         ut_asserteq_ptr(dev, dev2);
 937
 938         ut_asserteq(-ENODEV, device_find_first_child_by_uclass(i2c,
 939                                                         UCLASS_VIDEO, &dev));
 940         ut_asserteq(-ENODEV, device_find_child_by_name(i2c, "missing", &dev));
 941
 942         return 0;
 943 }
 944 DM_TEST(dm_test_first_child, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 945
 946 /* Test integer functions in dm_read_...() */
 947 static int dm_test_read_int(struct unit_test_state *uts)
 948 {
 949         struct udevice *dev;
 950         u32 val32;
 951         s32 sval;
 952         uint val;
 953         u64 val64;
 954
 955         ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
 956         ut_asserteq_str("a-test", dev->name);
 957         ut_assertok(dev_read_u32(dev, "int-value", &val32));
 958         ut_asserteq(1234, val32);
 959
 960         ut_asserteq(-EINVAL, dev_read_u32(dev, "missing", &val32));
 961         ut_asserteq(6, dev_read_u32_default(dev, "missing", 6));
 962
 963         ut_asserteq(1234, dev_read_u32_default(dev, "int-value", 6));
 964         ut_asserteq(1234, val32);
 965
 966         ut_asserteq(-EINVAL, dev_read_s32(dev, "missing", &sval));
 967         ut_asserteq(6, dev_read_s32_default(dev, "missing", 6));
 968
 969         ut_asserteq(-1234, dev_read_s32_default(dev, "uint-value", 6));
 970         ut_assertok(dev_read_s32(dev, "uint-value", &sval));
 971         ut_asserteq(-1234, sval);
 972
 973         val = 0;
 974         ut_asserteq(-EINVAL, dev_read_u32u(dev, "missing", &val));
 975         ut_assertok(dev_read_u32u(dev, "uint-value", &val));
 976         ut_asserteq(-1234, val);
 977
 978         ut_assertok(dev_read_u64(dev, "int64-value", &val64));
 979         ut_asserteq_64(0x1111222233334444, val64);
 980
 981         ut_asserteq_64(-EINVAL, dev_read_u64(dev, "missing", &val64));
 982         ut_asserteq_64(6, dev_read_u64_default(dev, "missing", 6));
 983
 984         ut_asserteq_64(0x1111222233334444,
 985                        dev_read_u64_default(dev, "int64-value", 6));
 986
 987         return 0;
 988 }
 989 DM_TEST(dm_test_read_int, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 990
 991 static int dm_test_read_int_index(struct unit_test_state *uts)
 992 {
 993         struct udevice *dev;
 994         u32 val32;
 995
 996         ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
 997         ut_asserteq_str("a-test", dev->name);
 998
 999         ut_asserteq(-EINVAL, dev_read_u32_index(dev, "missing", 0, &val32));
1000         ut_asserteq(19, dev_read_u32_index_default(dev, "missing", 0, 19));
1001
1002         ut_assertok(dev_read_u32_index(dev, "int-array", 0, &val32));
1003         ut_asserteq(5678, val32);
1004         ut_assertok(dev_read_u32_index(dev, "int-array", 1, &val32));
1005         ut_asserteq(9123, val32);
1006         ut_assertok(dev_read_u32_index(dev, "int-array", 2, &val32));
1007         ut_asserteq(4567, val32);
1008         ut_asserteq(-EOVERFLOW, dev_read_u32_index(dev, "int-array", 3,
1009                                                    &val32));
1010
1011         ut_asserteq(5678, dev_read_u32_index_default(dev, "int-array", 0, 2));
1012         ut_asserteq(9123, dev_read_u32_index_default(dev, "int-array", 1, 2));
1013         ut_asserteq(4567, dev_read_u32_index_default(dev, "int-array", 2, 2));
1014         ut_asserteq(2, dev_read_u32_index_default(dev, "int-array", 3, 2));
1015
1016         return 0;
1017 }
1018 DM_TEST(dm_test_read_int_index, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
1019
1020 static int dm_test_read_phandle(struct unit_test_state *uts)
1021 {
1022         struct udevice *dev;
1023         struct ofnode_phandle_args args;
1024         int ret;
1025         const char prop[] = "test-gpios";
1026         const char cell[] = "#gpio-cells";
1027         const char prop2[] = "phandle-value";
1028
1029         ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
1030         ut_asserteq_str("a-test", dev->name);
1031
1032         /* Test dev_count_phandle_with_args with cell name */
1033         ret = dev_count_phandle_with_args(dev, "missing", cell, 0);
1034         ut_asserteq(-ENOENT, ret);
1035         ret = dev_count_phandle_with_args(dev, prop, "#invalid", 0);
1036         ut_asserteq(-EINVAL, ret);
1037         ut_asserteq(5, dev_count_phandle_with_args(dev, prop, cell, 0));
1038
1039         /* Test dev_read_phandle_with_args with cell name */
1040         ret = dev_read_phandle_with_args(dev, "missing", cell, 0, 0, &args);
1041         ut_asserteq(-ENOENT, ret);
1042         ret = dev_read_phandle_with_args(dev, prop, "#invalid", 0, 0, &args);
1043         ut_asserteq(-EINVAL, ret);
1044         ut_assertok(dev_read_phandle_with_args(dev, prop, cell, 0, 0, &args));
1045         ut_asserteq(1, args.args_count);
1046         ut_asserteq(1, args.args[0]);
1047         ut_assertok(dev_read_phandle_with_args(dev, prop, cell, 0, 1, &args));
1048         ut_asserteq(1, args.args_count);
1049         ut_asserteq(4, args.args[0]);
1050         ut_assertok(dev_read_phandle_with_args(dev, prop, cell, 0, 2, &args));
1051         ut_asserteq(5, args.args_count);
1052         ut_asserteq(5, args.args[0]);
1053         ut_asserteq(1, args.args[4]);
1054         ret = dev_read_phandle_with_args(dev, prop, cell, 0, 3, &args);
1055         ut_asserteq(-ENOENT, ret);
1056         ut_assertok(dev_read_phandle_with_args(dev, prop, cell, 0, 4, &args));
1057         ut_asserteq(1, args.args_count);
1058         ut_asserteq(12, args.args[0]);
1059         ret = dev_read_phandle_with_args(dev, prop, cell, 0, 5, &args);
1060         ut_asserteq(-ENOENT, ret);
1061
1062         /* Test dev_count_phandle_with_args with cell count */
1063         ret = dev_count_phandle_with_args(dev, "missing", NULL, 2);
1064         ut_asserteq(-ENOENT, ret);
1065         ut_asserteq(3, dev_count_phandle_with_args(dev, prop2, NULL, 1));
1066
1067         /* Test dev_read_phandle_with_args with cell count */
1068         ut_assertok(dev_read_phandle_with_args(dev, prop2, NULL, 1, 0, &args));
1069         ut_asserteq(1, ofnode_valid(args.node));
1070         ut_asserteq(1, args.args_count);
1071         ut_asserteq(10, args.args[0]);
1072         ret = dev_read_phandle_with_args(dev, prop2, NULL, 1, 1, &args);
1073         ut_asserteq(-EINVAL, ret);
1074         ut_assertok(dev_read_phandle_with_args(dev, prop2, NULL, 1, 2, &args));
1075         ut_asserteq(1, ofnode_valid(args.node));
1076         ut_asserteq(1, args.args_count);
1077         ut_asserteq(30, args.args[0]);
1078         ret = dev_read_phandle_with_args(dev, prop2, NULL, 1, 3, &args);
1079         ut_asserteq(-ENOENT, ret);
1080
1081         return 0;
1082 }
1083 DM_TEST(dm_test_read_phandle, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
1084
1085 /* Test iteration through devices by drvdata */
1086 static int dm_test_uclass_drvdata(struct unit_test_state *uts)
1087 {
1088         struct udevice *dev;
1089
1090         ut_assertok(uclass_first_device_drvdata(UCLASS_TEST_FDT,
1091                                                 DM_TEST_TYPE_FIRST, &dev));
1092         ut_asserteq_str("a-test", dev->name);
1093
1094         ut_assertok(uclass_first_device_drvdata(UCLASS_TEST_FDT,
1095                                                 DM_TEST_TYPE_SECOND, &dev));
1096         ut_asserteq_str("d-test", dev->name);
1097
1098         ut_asserteq(-ENODEV, uclass_first_device_drvdata(UCLASS_TEST_FDT,
1099                                                          DM_TEST_TYPE_COUNT,
1100                                                          &dev));
1101
1102         return 0;
1103 }
1104 DM_TEST(dm_test_uclass_drvdata, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
1105
1106 /* Test device_first_child_ofdata_err(), etc. */
1107 static int dm_test_child_ofdata(struct unit_test_state *uts)
1108 {
1109         struct udevice *bus, *dev;
1110         int count;
1111
1112         ut_assertok(uclass_first_device_err(UCLASS_TEST_BUS, &bus));
1113         count = 0;
1114         device_foreach_child_of_to_plat(dev, bus) {
1115                 ut_assert(dev->flags & DM_FLAG_PLATDATA_VALID);
1116                 ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
1117                 count++;
1118         }
1119         ut_asserteq(3, count);
1120
1121         return 0;
1122 }
1123 DM_TEST(dm_test_child_ofdata, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
1124
1125 /* Test device_first_child_err(), etc. */
1126 static int dm_test_first_child_probe(struct unit_test_state *uts)
1127 {
1128         struct udevice *bus, *dev;
1129         int count;
1130
1131         ut_assertok(uclass_first_device_err(UCLASS_TEST_BUS, &bus));
1132         count = 0;
1133         device_foreach_child_probe(dev, bus) {
1134                 ut_assert(dev->flags & DM_FLAG_PLATDATA_VALID);
1135                 ut_assert(dev->flags & DM_FLAG_ACTIVATED);
1136                 count++;
1137         }
1138         ut_asserteq(3, count);
1139
1140         return 0;
1141 }
1142 DM_TEST(dm_test_first_child_probe, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
1143
1144 /* Test that ofdata is read for parents before children */
1145 static int dm_test_ofdata_order(struct unit_test_state *uts)
1146 {
1147         struct udevice *bus, *dev;
1148
1149         ut_assertok(uclass_find_first_device(UCLASS_I2C, &bus));
1150         ut_assertnonnull(bus);
1151         ut_assert(!(bus->flags & DM_FLAG_PLATDATA_VALID));
1152
1153         ut_assertok(device_find_first_child(bus, &dev));
1154         ut_assertnonnull(dev);
1155         ut_assert(!(dev->flags & DM_FLAG_PLATDATA_VALID));
1156
1157         /* read the child's ofdata which should cause the parent's to be read */
1158         ut_assertok(device_of_to_plat(dev));
1159         ut_assert(dev->flags & DM_FLAG_PLATDATA_VALID);
1160         ut_assert(bus->flags & DM_FLAG_PLATDATA_VALID);
1161
1162         ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
1163         ut_assert(!(bus->flags & DM_FLAG_ACTIVATED));
1164
1165         return 0;
1166 }
1167 DM_TEST(dm_test_ofdata_order, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);