1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2013 Google, Inc
14 #include <dm/device-internal.h>
15 #include <dm/uclass-internal.h>
18 #include <dm/of_access.h>
21 DECLARE_GLOBAL_DATA_PTR;
23 static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
25 const struct dm_test_pdata *pdata = dev->platdata;
26 struct dm_test_priv *priv = dev_get_priv(dev);
28 *pingret = pingval + pdata->ping_add;
29 priv->ping_total += *pingret;
34 static const struct test_ops test_ops = {
35 .ping = testfdt_drv_ping,
38 static int testfdt_ofdata_to_platdata(struct udevice *dev)
40 struct dm_test_pdata *pdata = dev_get_platdata(dev);
42 pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
44 pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
50 static int testfdt_drv_probe(struct udevice *dev)
52 struct dm_test_priv *priv = dev_get_priv(dev);
54 priv->ping_total += DM_TEST_START_TOTAL;
57 * If this device is on a bus, the uclass_flag will be set before
58 * calling this function. In the meantime the uclass_postp is
59 * initlized to a value -1. These are used respectively by
60 * dm_test_bus_child_pre_probe_uclass() and
61 * dm_test_bus_child_post_probe_uclass().
63 priv->uclass_total += priv->uclass_flag;
64 priv->uclass_postp = -1;
69 static const struct udevice_id testfdt_ids[] = {
71 .compatible = "denx,u-boot-fdt-test",
72 .data = DM_TEST_TYPE_FIRST },
74 .compatible = "google,another-fdt-test",
75 .data = DM_TEST_TYPE_SECOND },
79 U_BOOT_DRIVER(testfdt_drv) = {
80 .name = "testfdt_drv",
81 .of_match = testfdt_ids,
82 .id = UCLASS_TEST_FDT,
83 .ofdata_to_platdata = testfdt_ofdata_to_platdata,
84 .probe = testfdt_drv_probe,
86 .priv_auto_alloc_size = sizeof(struct dm_test_priv),
87 .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
90 static const struct udevice_id testfdt1_ids[] = {
92 .compatible = "denx,u-boot-fdt-test1",
93 .data = DM_TEST_TYPE_FIRST },
97 U_BOOT_DRIVER(testfdt1_drv) = {
98 .name = "testfdt1_drv",
99 .of_match = testfdt1_ids,
100 .id = UCLASS_TEST_FDT,
101 .ofdata_to_platdata = testfdt_ofdata_to_platdata,
102 .probe = testfdt_drv_probe,
104 .priv_auto_alloc_size = sizeof(struct dm_test_priv),
105 .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
106 .flags = DM_FLAG_PRE_RELOC,
109 /* From here is the testfdt uclass code */
110 int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
112 const struct test_ops *ops = device_get_ops(dev);
117 return ops->ping(dev, pingval, pingret);
120 UCLASS_DRIVER(testfdt) = {
122 .id = UCLASS_TEST_FDT,
123 .flags = DM_UC_FLAG_SEQ_ALIAS,
126 struct dm_testprobe_pdata {
130 static int testprobe_drv_probe(struct udevice *dev)
132 struct dm_testprobe_pdata *pdata = dev_get_platdata(dev);
134 return pdata->probe_err;
137 static const struct udevice_id testprobe_ids[] = {
138 { .compatible = "denx,u-boot-probe-test" },
142 U_BOOT_DRIVER(testprobe_drv) = {
143 .name = "testprobe_drv",
144 .of_match = testprobe_ids,
145 .id = UCLASS_TEST_PROBE,
146 .probe = testprobe_drv_probe,
147 .platdata_auto_alloc_size = sizeof(struct dm_testprobe_pdata),
150 UCLASS_DRIVER(testprobe) = {
152 .id = UCLASS_TEST_PROBE,
153 .flags = DM_UC_FLAG_SEQ_ALIAS,
156 int dm_check_devices(struct unit_test_state *uts, int num_devices)
163 * Now check that the ping adds are what we expect. This is using the
164 * ping-add property in each node.
166 for (i = 0; i < num_devices; i++) {
169 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
173 * Get the 'ping-expect' property, which tells us what the
174 * ping add should be. We don't use the platdata because we
175 * want to test the code that sets that up
176 * (testfdt_drv_probe()).
178 base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
180 debug("dev=%d, base=%d: %s\n", i, base,
181 fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL));
183 ut_assert(!dm_check_operations(uts, dev, base,
190 /* Test that FDT-based binding works correctly */
191 static int dm_test_fdt(struct unit_test_state *uts)
193 const int num_devices = 8;
199 ret = dm_scan_fdt(gd->fdt_blob, false);
202 ret = uclass_get(UCLASS_TEST_FDT, &uc);
205 /* These are num_devices compatible root-level device tree nodes */
206 ut_asserteq(num_devices, list_count_items(&uc->dev_head));
208 /* Each should have platform data but no private data */
209 for (i = 0; i < num_devices; i++) {
210 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
212 ut_assert(!dev_get_priv(dev));
213 ut_assert(dev->platdata);
216 ut_assertok(dm_check_devices(uts, num_devices));
220 DM_TEST(dm_test_fdt, 0);
222 static int dm_test_alias_highest_id(struct unit_test_state *uts)
226 ret = dev_read_alias_highest_id("eth");
229 ret = dev_read_alias_highest_id("gpio");
232 ret = dev_read_alias_highest_id("pci");
235 ret = dev_read_alias_highest_id("i2c");
238 ret = dev_read_alias_highest_id("deadbeef");
239 ut_asserteq(-1, ret);
243 DM_TEST(dm_test_alias_highest_id, 0);
245 static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
250 ret = dm_scan_fdt(gd->fdt_blob, true);
253 ret = uclass_get(UCLASS_TEST_FDT, &uc);
257 * These are 2 pre-reloc devices:
258 * one with "u-boot,dm-pre-reloc" property (a-test node), and the other
259 * one whose driver marked with DM_FLAG_PRE_RELOC flag (h-test node).
261 ut_asserteq(2, list_count_items(&uc->dev_head));
265 DM_TEST(dm_test_fdt_pre_reloc, 0);
267 /* Test that sequence numbers are allocated properly */
268 static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
272 /* A few basic santiy tests */
273 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
274 ut_asserteq_str("b-test", dev->name);
276 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
277 ut_asserteq_str("a-test", dev->name);
279 ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
281 ut_asserteq_ptr(NULL, dev);
284 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
285 ut_asserteq_str("e-test", dev->name);
287 ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
291 * Note that c-test nodes are not probed since it is not a top-level
294 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
295 ut_asserteq_str("b-test", dev->name);
298 * d-test wants sequence number 3 also, but it can't have it because
299 * b-test gets it first.
301 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
302 ut_asserteq_str("d-test", dev->name);
304 /* d-test actually gets 0 */
305 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev));
306 ut_asserteq_str("d-test", dev->name);
308 /* initially no one wants seq 1 */
309 ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1,
311 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
312 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
314 /* But now that it is probed, we can find it */
315 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev));
316 ut_asserteq_str("f-test", dev->name);
320 DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
322 /* Test that we can find a device by device tree offset */
323 static int dm_test_fdt_offset(struct unit_test_state *uts)
325 const void *blob = gd->fdt_blob;
329 node = fdt_path_offset(blob, "/e-test");
331 ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
333 ut_asserteq_str("e-test", dev->name);
335 /* This node should not be bound */
336 node = fdt_path_offset(blob, "/junk");
338 ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
341 /* This is not a top level node so should not be probed */
342 node = fdt_path_offset(blob, "/some-bus/c-test@5");
344 ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
349 DM_TEST(dm_test_fdt_offset,
350 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
353 * Test various error conditions with uclass_first_device() and
354 * uclass_next_device()
356 static int dm_test_first_next_device(struct unit_test_state *uts)
358 struct dm_testprobe_pdata *pdata;
359 struct udevice *dev, *parent = NULL;
363 /* There should be 4 devices */
364 for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0;
366 ret = uclass_next_device(&dev)) {
368 parent = dev_get_parent(dev);
371 ut_asserteq(4, count);
373 /* Remove them and try again, with an error on the second one */
374 ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev));
375 pdata = dev_get_platdata(dev);
376 pdata->probe_err = -ENOMEM;
377 device_remove(parent, DM_REMOVE_NORMAL);
378 ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev));
379 ut_asserteq(-ENOMEM, uclass_next_device(&dev));
380 ut_asserteq_ptr(dev, NULL);
382 /* Now an error on the first one */
383 ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev));
384 pdata = dev_get_platdata(dev);
385 pdata->probe_err = -ENOENT;
386 device_remove(parent, DM_REMOVE_NORMAL);
387 ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev));
391 DM_TEST(dm_test_first_next_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
394 * check_devices() - Check return values and pointers
396 * This runs through a full sequence of uclass_first_device_check()...
397 * uclass_next_device_check() checking that the return values and devices
401 * @devlist: List of expected devices
402 * @mask: Indicates which devices should return an error. Device n should
403 * return error (-NOENT - n) if bit n is set, or no error (i.e. 0) if
406 static int check_devices(struct unit_test_state *uts,
407 struct udevice *devlist[], int mask)
413 expected_ret = (mask & 1) ? -ENOENT : 0;
415 ut_asserteq(expected_ret,
416 uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
417 for (i = 0; i < 4; i++) {
418 ut_asserteq_ptr(devlist[i], dev);
419 expected_ret = (mask & 1) ? -ENOENT - (i + 1) : 0;
421 ut_asserteq(expected_ret, uclass_next_device_check(&dev));
423 ut_asserteq_ptr(NULL, dev);
428 /* Test uclass_first_device_check() and uclass_next_device_check() */
429 static int dm_test_first_next_ok_device(struct unit_test_state *uts)
431 struct dm_testprobe_pdata *pdata;
432 struct udevice *dev, *parent = NULL, *devlist[4];
436 /* There should be 4 devices */
438 for (ret = uclass_first_device_check(UCLASS_TEST_PROBE, &dev);
440 ret = uclass_next_device_check(&dev)) {
442 devlist[count++] = dev;
443 parent = dev_get_parent(dev);
445 ut_asserteq(4, count);
446 ut_assertok(uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
447 ut_assertok(check_devices(uts, devlist, 0));
449 /* Remove them and try again, with an error on the second one */
450 pdata = dev_get_platdata(devlist[1]);
451 pdata->probe_err = -ENOENT - 1;
452 device_remove(parent, DM_REMOVE_NORMAL);
453 ut_assertok(check_devices(uts, devlist, 1 << 1));
455 /* Now an error on the first one */
456 pdata = dev_get_platdata(devlist[0]);
457 pdata->probe_err = -ENOENT - 0;
458 device_remove(parent, DM_REMOVE_NORMAL);
459 ut_assertok(check_devices(uts, devlist, 3 << 0));
461 /* Now errors on all */
462 pdata = dev_get_platdata(devlist[2]);
463 pdata->probe_err = -ENOENT - 2;
464 pdata = dev_get_platdata(devlist[3]);
465 pdata->probe_err = -ENOENT - 3;
466 device_remove(parent, DM_REMOVE_NORMAL);
467 ut_assertok(check_devices(uts, devlist, 0xf << 0));
471 DM_TEST(dm_test_first_next_ok_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
473 static const struct udevice_id fdt_dummy_ids[] = {
474 { .compatible = "denx,u-boot-fdt-dummy", },
478 UCLASS_DRIVER(fdt_dummy) = {
480 .id = UCLASS_TEST_DUMMY,
481 .flags = DM_UC_FLAG_SEQ_ALIAS,
484 U_BOOT_DRIVER(fdt_dummy_drv) = {
485 .name = "fdt_dummy_drv",
486 .of_match = fdt_dummy_ids,
487 .id = UCLASS_TEST_DUMMY,
490 static int dm_test_fdt_translation(struct unit_test_state *uts)
494 /* Some simple translations */
495 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
496 ut_asserteq_str("dev@0,0", dev->name);
497 ut_asserteq(0x8000, dev_read_addr(dev));
499 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
500 ut_asserteq_str("dev@1,100", dev->name);
501 ut_asserteq(0x9000, dev_read_addr(dev));
503 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 2, true, &dev));
504 ut_asserteq_str("dev@2,200", dev->name);
505 ut_asserteq(0xA000, dev_read_addr(dev));
507 /* No translation for busses with #size-cells == 0 */
508 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 3, true, &dev));
509 ut_asserteq_str("dev@42", dev->name);
510 ut_asserteq(0x42, dev_read_addr(dev));
514 DM_TEST(dm_test_fdt_translation, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
516 static int dm_test_fdt_remap_addr_flat(struct unit_test_state *uts)
522 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
524 addr = devfdt_get_addr(dev);
525 ut_asserteq(0x8000, addr);
527 paddr = map_physmem(addr, 0, MAP_NOCACHE);
528 ut_assertnonnull(paddr);
529 ut_asserteq_ptr(paddr, devfdt_remap_addr(dev));
533 DM_TEST(dm_test_fdt_remap_addr_flat,
534 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
536 static int dm_test_fdt_remap_addr_index_flat(struct unit_test_state *uts)
542 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
544 addr = devfdt_get_addr_index(dev, 0);
545 ut_asserteq(0x8000, addr);
547 paddr = map_physmem(addr, 0, MAP_NOCACHE);
548 ut_assertnonnull(paddr);
549 ut_asserteq_ptr(paddr, devfdt_remap_addr_index(dev, 0));
553 DM_TEST(dm_test_fdt_remap_addr_index_flat,
554 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
556 static int dm_test_fdt_remap_addr_name_flat(struct unit_test_state *uts)
562 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
564 addr = devfdt_get_addr_name(dev, "sandbox-dummy-0");
565 ut_asserteq(0x8000, addr);
567 paddr = map_physmem(addr, 0, MAP_NOCACHE);
568 ut_assertnonnull(paddr);
569 ut_asserteq_ptr(paddr, devfdt_remap_addr_name(dev, "sandbox-dummy-0"));
573 DM_TEST(dm_test_fdt_remap_addr_name_flat,
574 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
576 static int dm_test_fdt_remap_addr_live(struct unit_test_state *uts)
582 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
584 addr = dev_read_addr(dev);
585 ut_asserteq(0x8000, addr);
587 paddr = map_physmem(addr, 0, MAP_NOCACHE);
588 ut_assertnonnull(paddr);
589 ut_asserteq_ptr(paddr, dev_remap_addr(dev));
593 DM_TEST(dm_test_fdt_remap_addr_live,
594 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
596 static int dm_test_fdt_remap_addr_index_live(struct unit_test_state *uts)
602 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
604 addr = dev_read_addr_index(dev, 0);
605 ut_asserteq(0x8000, addr);
607 paddr = map_physmem(addr, 0, MAP_NOCACHE);
608 ut_assertnonnull(paddr);
609 ut_asserteq_ptr(paddr, dev_remap_addr_index(dev, 0));
613 DM_TEST(dm_test_fdt_remap_addr_index_live,
614 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
616 static int dm_test_fdt_remap_addr_name_live(struct unit_test_state *uts)
622 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
624 addr = dev_read_addr_name(dev, "sandbox-dummy-0");
625 ut_asserteq(0x8000, addr);
627 paddr = map_physmem(addr, 0, MAP_NOCACHE);
628 ut_assertnonnull(paddr);
629 ut_asserteq_ptr(paddr, dev_remap_addr_name(dev, "sandbox-dummy-0"));
633 DM_TEST(dm_test_fdt_remap_addr_name_live,
634 DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
636 static int dm_test_fdt_livetree_writing(struct unit_test_state *uts)
641 if (!of_live_active()) {
642 printf("Live tree not active; ignore test\n");
646 /* Test enabling devices */
648 node = ofnode_path("/usb@2");
650 ut_assert(!of_device_is_available(ofnode_to_np(node)));
651 ofnode_set_enabled(node, true);
652 ut_assert(of_device_is_available(ofnode_to_np(node)));
654 device_bind_driver_to_node(dm_root(), "usb_sandbox", "usb@2", node,
656 ut_assertok(uclass_find_device_by_seq(UCLASS_USB, 2, true, &dev));
658 /* Test string property setting */
660 ut_assert(device_is_compatible(dev, "sandbox,usb"));
661 ofnode_write_string(node, "compatible", "gdsys,super-usb");
662 ut_assert(device_is_compatible(dev, "gdsys,super-usb"));
663 ofnode_write_string(node, "compatible", "sandbox,usb");
664 ut_assert(device_is_compatible(dev, "sandbox,usb"));
666 /* Test setting generic properties */
668 /* Non-existent in DTB */
669 ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev));
670 /* reg = 0x42, size = 0x100 */
671 ut_assertok(ofnode_write_prop(node, "reg", 8,
672 "\x00\x00\x00\x42\x00\x00\x01\x00"));
673 ut_asserteq(0x42, dev_read_addr(dev));
675 /* Test disabling devices */
677 device_remove(dev, DM_REMOVE_NORMAL);
680 ut_assert(of_device_is_available(ofnode_to_np(node)));
681 ofnode_set_enabled(node, false);
682 ut_assert(!of_device_is_available(ofnode_to_np(node)));
686 DM_TEST(dm_test_fdt_livetree_writing, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
688 static int dm_test_fdt_disable_enable_by_path(struct unit_test_state *uts)
692 if (!of_live_active()) {
693 printf("Live tree not active; ignore test\n");
697 node = ofnode_path("/usb@2");
699 /* Test enabling devices */
701 ut_assert(!of_device_is_available(ofnode_to_np(node)));
702 dev_enable_by_path("/usb@2");
703 ut_assert(of_device_is_available(ofnode_to_np(node)));
705 /* Test disabling devices */
707 ut_assert(of_device_is_available(ofnode_to_np(node)));
708 dev_disable_by_path("/usb@2");
709 ut_assert(!of_device_is_available(ofnode_to_np(node)));
713 DM_TEST(dm_test_fdt_disable_enable_by_path, DM_TESTF_SCAN_PDATA |
716 /* Test a few uclass phandle functions */
717 static int dm_test_fdt_phandle(struct unit_test_state *uts)
719 struct udevice *back, *dev, *dev2;
721 ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
722 ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR,
723 back, "missing", &dev));
724 ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back,
725 "power-supply", &dev));
726 ut_asserteq(0, device_active(dev));
727 ut_asserteq_str("ldo1", dev->name);
728 ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back,
729 "power-supply", &dev2));
730 ut_asserteq_ptr(dev, dev2);
734 DM_TEST(dm_test_fdt_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
736 /* Test device_find_first_child_by_uclass() */
737 static int dm_test_first_child(struct unit_test_state *uts)
739 struct udevice *i2c, *dev, *dev2;
741 ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
742 ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_RTC, &dev));
743 ut_asserteq_str("rtc@43", dev->name);
744 ut_assertok(device_find_child_by_name(i2c, "rtc@43", &dev2));
745 ut_asserteq_ptr(dev, dev2);
746 ut_assertok(device_find_child_by_name(i2c, "rtc@61", &dev2));
747 ut_asserteq_str("rtc@61", dev2->name);
749 ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_I2C_EEPROM,
751 ut_asserteq_str("eeprom@2c", dev->name);
752 ut_assertok(device_find_child_by_name(i2c, "eeprom@2c", &dev2));
753 ut_asserteq_ptr(dev, dev2);
755 ut_asserteq(-ENODEV, device_find_first_child_by_uclass(i2c,
756 UCLASS_VIDEO, &dev));
757 ut_asserteq(-ENODEV, device_find_child_by_name(i2c, "missing", &dev));
761 DM_TEST(dm_test_first_child, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
763 /* Test integer functions in dm_read_...() */
764 static int dm_test_read_int(struct unit_test_state *uts)
771 ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
772 ut_asserteq_str("a-test", dev->name);
773 ut_assertok(dev_read_u32(dev, "int-value", &val32));
774 ut_asserteq(1234, val32);
776 ut_asserteq(-EINVAL, dev_read_u32(dev, "missing", &val32));
777 ut_asserteq(6, dev_read_u32_default(dev, "missing", 6));
779 ut_asserteq(1234, dev_read_u32_default(dev, "int-value", 6));
780 ut_asserteq(1234, val32);
782 ut_asserteq(-EINVAL, dev_read_s32(dev, "missing", &sval));
783 ut_asserteq(6, dev_read_s32_default(dev, "missing", 6));
785 ut_asserteq(-1234, dev_read_s32_default(dev, "uint-value", 6));
786 ut_assertok(dev_read_s32(dev, "uint-value", &sval));
787 ut_asserteq(-1234, sval);
790 ut_asserteq(-EINVAL, dev_read_u32u(dev, "missing", &val));
791 ut_assertok(dev_read_u32u(dev, "uint-value", &val));
792 ut_asserteq(-1234, val);
796 DM_TEST(dm_test_read_int, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);