X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=test%2Fdm%2Ftest-fdt.c;h=0fbd9be765a19d6e9e349db6d2e94b07260bf248;hb=9450ab2ba8d720bd9f73bccc0af2e2b5a2c2aaf1;hp=e1d982fd7d164391e958c2e608dc03e5f1bb6a57;hpb=32907339c2f533f1d59362c6100c6a0eeeca4837;p=platform%2Fkernel%2Fu-boot.git diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c index e1d982f..0fbd9be 100644 --- a/test/dm/test-fdt.c +++ b/test/dm/test-fdt.c @@ -1,7 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2013 Google, Inc - * - * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -12,13 +11,16 @@ #include #include #include -#include +#include #include #include +#include +#include +#include DECLARE_GLOBAL_DATA_PTR; -static int testfdt_drv_ping(struct device *dev, int pingval, int *pingret) +static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret) { const struct dm_test_pdata *pdata = dev->platdata; struct dm_test_priv *priv = dev_get_priv(dev); @@ -33,27 +35,38 @@ static const struct test_ops test_ops = { .ping = testfdt_drv_ping, }; -static int testfdt_ofdata_to_platdata(struct device *dev) +static int testfdt_ofdata_to_platdata(struct udevice *dev) { struct dm_test_pdata *pdata = dev_get_platdata(dev); - pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev->of_offset, + pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "ping-add", -1); - pdata->base = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg"); + pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev), + "ping-expect"); return 0; } -static int testfdt_drv_probe(struct device *dev) +static int testfdt_drv_probe(struct udevice *dev) { struct dm_test_priv *priv = dev_get_priv(dev); priv->ping_total += DM_TEST_START_TOTAL; + /* + * If this device is on a bus, the uclass_flag will be set before + * calling this function. In the meantime the uclass_postp is + * initlized to a value -1. These are used respectively by + * dm_test_bus_child_pre_probe_uclass() and + * dm_test_bus_child_post_probe_uclass(). + */ + priv->uclass_total += priv->uclass_flag; + priv->uclass_postp = -1; + return 0; } -static const struct device_id testfdt_ids[] = { +static const struct udevice_id testfdt_ids[] = { { .compatible = "denx,u-boot-fdt-test", .data = DM_TEST_TYPE_FIRST }, @@ -74,8 +87,27 @@ U_BOOT_DRIVER(testfdt_drv) = { .platdata_auto_alloc_size = sizeof(struct dm_test_pdata), }; +static const struct udevice_id testfdt1_ids[] = { + { + .compatible = "denx,u-boot-fdt-test1", + .data = DM_TEST_TYPE_FIRST }, + { } +}; + +U_BOOT_DRIVER(testfdt1_drv) = { + .name = "testfdt1_drv", + .of_match = testfdt1_ids, + .id = UCLASS_TEST_FDT, + .ofdata_to_platdata = testfdt_ofdata_to_platdata, + .probe = testfdt_drv_probe, + .ops = &test_ops, + .priv_auto_alloc_size = sizeof(struct dm_test_priv), + .platdata_auto_alloc_size = sizeof(struct dm_test_pdata), + .flags = DM_FLAG_PRE_RELOC, +}; + /* From here is the testfdt uclass code */ -int testfdt_ping(struct device *dev, int pingval, int *pingret) +int testfdt_ping(struct udevice *dev, int pingval, int *pingret) { const struct test_ops *ops = device_get_ops(dev); @@ -88,57 +120,541 @@ int testfdt_ping(struct device *dev, int pingval, int *pingret) UCLASS_DRIVER(testfdt) = { .name = "testfdt", .id = UCLASS_TEST_FDT, + .flags = DM_UC_FLAG_SEQ_ALIAS, +}; + +struct dm_testprobe_pdata { + int probe_err; +}; + +static int testprobe_drv_probe(struct udevice *dev) +{ + struct dm_testprobe_pdata *pdata = dev_get_platdata(dev); + + return pdata->probe_err; +} + +static const struct udevice_id testprobe_ids[] = { + { .compatible = "denx,u-boot-probe-test" }, + { } }; +U_BOOT_DRIVER(testprobe_drv) = { + .name = "testprobe_drv", + .of_match = testprobe_ids, + .id = UCLASS_TEST_PROBE, + .probe = testprobe_drv_probe, + .platdata_auto_alloc_size = sizeof(struct dm_testprobe_pdata), +}; + +UCLASS_DRIVER(testprobe) = { + .name = "testprobe", + .id = UCLASS_TEST_PROBE, + .flags = DM_UC_FLAG_SEQ_ALIAS, +}; + +int dm_check_devices(struct unit_test_state *uts, int num_devices) +{ + struct udevice *dev; + int ret; + int i; + + /* + * Now check that the ping adds are what we expect. This is using the + * ping-add property in each node. + */ + for (i = 0; i < num_devices; i++) { + uint32_t base; + + ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev); + ut_assert(!ret); + + /* + * Get the 'ping-expect' property, which tells us what the + * ping add should be. We don't use the platdata because we + * want to test the code that sets that up + * (testfdt_drv_probe()). + */ + base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev), + "ping-expect"); + debug("dev=%d, base=%d: %s\n", i, base, + fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL)); + + ut_assert(!dm_check_operations(uts, dev, base, + dev_get_priv(dev))); + } + + return 0; +} + /* Test that FDT-based binding works correctly */ -static int dm_test_fdt(struct dm_test_state *dms) +static int dm_test_fdt(struct unit_test_state *uts) { - const int num_drivers = 3; - struct device *dev; + const int num_devices = 8; + struct udevice *dev; struct uclass *uc; int ret; int i; - ret = dm_scan_fdt(gd->fdt_blob); + ret = dm_scan_fdt(gd->fdt_blob, false); ut_assert(!ret); ret = uclass_get(UCLASS_TEST_FDT, &uc); ut_assert(!ret); - /* These are num_drivers compatible root-level device tree nodes */ - ut_asserteq(num_drivers, list_count_items(&uc->dev_head)); + /* These are num_devices compatible root-level device tree nodes */ + ut_asserteq(num_devices, list_count_items(&uc->dev_head)); - /* Each should have no platdata / priv */ - for (i = 0; i < num_drivers; i++) { + /* Each should have platform data but no private data */ + for (i = 0; i < num_devices; i++) { ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev); ut_assert(!ret); ut_assert(!dev_get_priv(dev)); - ut_assert(!dev->platdata); + ut_assert(dev->platdata); } + ut_assertok(dm_check_devices(uts, num_devices)); + + return 0; +} +DM_TEST(dm_test_fdt, 0); + +static int dm_test_fdt_pre_reloc(struct unit_test_state *uts) +{ + struct uclass *uc; + int ret; + + ret = dm_scan_fdt(gd->fdt_blob, true); + ut_assert(!ret); + + ret = uclass_get(UCLASS_TEST_FDT, &uc); + ut_assert(!ret); + /* - * Now check that the ping adds are what we expect. This is using the - * ping-add property in each node. + * These are 2 pre-reloc devices: + * one with "u-boot,dm-pre-reloc" property (a-test node), and the other + * one whose driver marked with DM_FLAG_PRE_RELOC flag (h-test node). */ - for (i = 0; i < num_drivers; i++) { - uint32_t base; + ut_asserteq(2, list_count_items(&uc->dev_head)); - ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev); - ut_assert(!ret); + return 0; +} +DM_TEST(dm_test_fdt_pre_reloc, 0); - /* - * Get the 'reg' property, which tells us what the ping add - * should be. We don't use the platdata because we want - * to test the code that sets that up (testfdt_drv_probe()). - */ - base = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg"); - debug("dev=%d, base=%d: %s\n", i, base, - fdt_get_name(gd->fdt_blob, dev->of_offset, NULL)); +/* Test that sequence numbers are allocated properly */ +static int dm_test_fdt_uclass_seq(struct unit_test_state *uts) +{ + struct udevice *dev; - ut_assert(!dm_check_operations(dms, dev, base, - dev_get_priv(dev))); + /* A few basic santiy tests */ + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev)); + ut_asserteq_str("b-test", dev->name); + + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev)); + ut_asserteq_str("a-test", dev->name); + + ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5, + true, &dev)); + ut_asserteq_ptr(NULL, dev); + + /* Test aliases */ + ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev)); + ut_asserteq_str("e-test", dev->name); + + ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7, + true, &dev)); + + /* + * Note that c-test nodes are not probed since it is not a top-level + * node + */ + ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev)); + ut_asserteq_str("b-test", dev->name); + + /* + * d-test wants sequence number 3 also, but it can't have it because + * b-test gets it first. + */ + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev)); + ut_asserteq_str("d-test", dev->name); + + /* d-test actually gets 0 */ + ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev)); + ut_asserteq_str("d-test", dev->name); + + /* initially no one wants seq 1 */ + ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, + &dev)); + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev)); + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev)); + + /* But now that it is probed, we can find it */ + ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev)); + ut_asserteq_str("f-test", dev->name); + + return 0; +} +DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test that we can find a device by device tree offset */ +static int dm_test_fdt_offset(struct unit_test_state *uts) +{ + const void *blob = gd->fdt_blob; + struct udevice *dev; + int node; + + node = fdt_path_offset(blob, "/e-test"); + ut_assert(node > 0); + ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node, + &dev)); + ut_asserteq_str("e-test", dev->name); + + /* This node should not be bound */ + node = fdt_path_offset(blob, "/junk"); + ut_assert(node > 0); + ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT, + node, &dev)); + + /* This is not a top level node so should not be probed */ + node = fdt_path_offset(blob, "/some-bus/c-test@5"); + ut_assert(node > 0); + ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT, + node, &dev)); + + return 0; +} +DM_TEST(dm_test_fdt_offset, + DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE); + +/** + * Test various error conditions with uclass_first_device() and + * uclass_next_device() + */ +static int dm_test_first_next_device(struct unit_test_state *uts) +{ + struct dm_testprobe_pdata *pdata; + struct udevice *dev, *parent = NULL; + int count; + int ret; + + /* There should be 4 devices */ + for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0; + dev; + ret = uclass_next_device(&dev)) { + count++; + parent = dev_get_parent(dev); + } + ut_assertok(ret); + ut_asserteq(4, count); + + /* Remove them and try again, with an error on the second one */ + ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev)); + pdata = dev_get_platdata(dev); + pdata->probe_err = -ENOMEM; + device_remove(parent, DM_REMOVE_NORMAL); + ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev)); + ut_asserteq(-ENOMEM, uclass_next_device(&dev)); + ut_asserteq_ptr(dev, NULL); + + /* Now an error on the first one */ + ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev)); + pdata = dev_get_platdata(dev); + pdata->probe_err = -ENOENT; + device_remove(parent, DM_REMOVE_NORMAL); + ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev)); + + return 0; +} +DM_TEST(dm_test_first_next_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/** + * check_devices() - Check return values and pointers + * + * This runs through a full sequence of uclass_first_device_check()... + * uclass_next_device_check() checking that the return values and devices + * are correct. + * + * @uts: Test state + * @devlist: List of expected devices + * @mask: Indicates which devices should return an error. Device n should + * return error (-NOENT - n) if bit n is set, or no error (i.e. 0) if + * bit n is clear. + */ +static int check_devices(struct unit_test_state *uts, + struct udevice *devlist[], int mask) +{ + int expected_ret; + struct udevice *dev; + int i; + + expected_ret = (mask & 1) ? -ENOENT : 0; + mask >>= 1; + ut_asserteq(expected_ret, + uclass_first_device_check(UCLASS_TEST_PROBE, &dev)); + for (i = 0; i < 4; i++) { + ut_asserteq_ptr(devlist[i], dev); + expected_ret = (mask & 1) ? -ENOENT - (i + 1) : 0; + mask >>= 1; + ut_asserteq(expected_ret, uclass_next_device_check(&dev)); } + ut_asserteq_ptr(NULL, dev); return 0; } -DM_TEST(dm_test_fdt, 0); + +/* Test uclass_first_device_check() and uclass_next_device_check() */ +static int dm_test_first_next_ok_device(struct unit_test_state *uts) +{ + struct dm_testprobe_pdata *pdata; + struct udevice *dev, *parent = NULL, *devlist[4]; + int count; + int ret; + + /* There should be 4 devices */ + count = 0; + for (ret = uclass_first_device_check(UCLASS_TEST_PROBE, &dev); + dev; + ret = uclass_next_device_check(&dev)) { + ut_assertok(ret); + devlist[count++] = dev; + parent = dev_get_parent(dev); + } + ut_asserteq(4, count); + ut_assertok(uclass_first_device_check(UCLASS_TEST_PROBE, &dev)); + ut_assertok(check_devices(uts, devlist, 0)); + + /* Remove them and try again, with an error on the second one */ + pdata = dev_get_platdata(devlist[1]); + pdata->probe_err = -ENOENT - 1; + device_remove(parent, DM_REMOVE_NORMAL); + ut_assertok(check_devices(uts, devlist, 1 << 1)); + + /* Now an error on the first one */ + pdata = dev_get_platdata(devlist[0]); + pdata->probe_err = -ENOENT - 0; + device_remove(parent, DM_REMOVE_NORMAL); + ut_assertok(check_devices(uts, devlist, 3 << 0)); + + /* Now errors on all */ + pdata = dev_get_platdata(devlist[2]); + pdata->probe_err = -ENOENT - 2; + pdata = dev_get_platdata(devlist[3]); + pdata->probe_err = -ENOENT - 3; + device_remove(parent, DM_REMOVE_NORMAL); + ut_assertok(check_devices(uts, devlist, 0xf << 0)); + + return 0; +} +DM_TEST(dm_test_first_next_ok_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +static const struct udevice_id fdt_dummy_ids[] = { + { .compatible = "denx,u-boot-fdt-dummy", }, + { } +}; + +UCLASS_DRIVER(fdt_dummy) = { + .name = "fdt-dummy", + .id = UCLASS_TEST_DUMMY, + .flags = DM_UC_FLAG_SEQ_ALIAS, +}; + +U_BOOT_DRIVER(fdt_dummy_drv) = { + .name = "fdt_dummy_drv", + .of_match = fdt_dummy_ids, + .id = UCLASS_TEST_DUMMY, +}; + +static int dm_test_fdt_translation(struct unit_test_state *uts) +{ + struct udevice *dev; + + /* Some simple translations */ + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev)); + ut_asserteq_str("dev@0,0", dev->name); + ut_asserteq(0x8000, dev_read_addr(dev)); + + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev)); + ut_asserteq_str("dev@1,100", dev->name); + ut_asserteq(0x9000, dev_read_addr(dev)); + + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 2, true, &dev)); + ut_asserteq_str("dev@2,200", dev->name); + ut_asserteq(0xA000, dev_read_addr(dev)); + + /* No translation for busses with #size-cells == 0 */ + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 3, true, &dev)); + ut_asserteq_str("dev@42", dev->name); + ut_asserteq(0x42, dev_read_addr(dev)); + + return 0; +} +DM_TEST(dm_test_fdt_translation, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test devfdt_remap_addr_index() */ +static int dm_test_fdt_remap_addr_flat(struct unit_test_state *uts) +{ + struct udevice *dev; + fdt_addr_t addr; + void *paddr; + + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev)); + + addr = devfdt_get_addr(dev); + ut_asserteq(0x8000, addr); + + paddr = map_physmem(addr, 0, MAP_NOCACHE); + ut_assertnonnull(paddr); + ut_asserteq_ptr(paddr, devfdt_remap_addr(dev)); + + return 0; +} +DM_TEST(dm_test_fdt_remap_addr_flat, + DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE); + +/* Test dev_remap_addr_index() */ +static int dm_test_fdt_remap_addr_live(struct unit_test_state *uts) +{ + struct udevice *dev; + fdt_addr_t addr; + void *paddr; + + ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev)); + + addr = dev_read_addr(dev); + ut_asserteq(0x8000, addr); + + paddr = map_physmem(addr, 0, MAP_NOCACHE); + ut_assertnonnull(paddr); + ut_asserteq_ptr(paddr, dev_remap_addr(dev)); + + return 0; +} +DM_TEST(dm_test_fdt_remap_addr_live, + DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +static int dm_test_fdt_livetree_writing(struct unit_test_state *uts) +{ + struct udevice *dev; + ofnode node; + + if (!of_live_active()) { + printf("Live tree not active; ignore test\n"); + return 0; + } + + /* Test enabling devices */ + + node = ofnode_path("/usb@2"); + + ut_assert(!of_device_is_available(ofnode_to_np(node))); + ofnode_set_enabled(node, true); + ut_assert(of_device_is_available(ofnode_to_np(node))); + + device_bind_driver_to_node(dm_root(), "usb_sandbox", "usb@2", node, + &dev); + ut_assertok(uclass_find_device_by_seq(UCLASS_USB, 2, true, &dev)); + + /* Test string property setting */ + + ut_assert(device_is_compatible(dev, "sandbox,usb")); + ofnode_write_string(node, "compatible", "gdsys,super-usb"); + ut_assert(device_is_compatible(dev, "gdsys,super-usb")); + ofnode_write_string(node, "compatible", "sandbox,usb"); + ut_assert(device_is_compatible(dev, "sandbox,usb")); + + /* Test setting generic properties */ + + /* Non-existent in DTB */ + ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev)); + /* reg = 0x42, size = 0x100 */ + ut_assertok(ofnode_write_prop(node, "reg", 8, + "\x00\x00\x00\x42\x00\x00\x01\x00")); + ut_asserteq(0x42, dev_read_addr(dev)); + + /* Test disabling devices */ + + device_remove(dev, DM_REMOVE_NORMAL); + device_unbind(dev); + + ut_assert(of_device_is_available(ofnode_to_np(node))); + ofnode_set_enabled(node, false); + ut_assert(!of_device_is_available(ofnode_to_np(node))); + + return 0; +} +DM_TEST(dm_test_fdt_livetree_writing, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +static int dm_test_fdt_disable_enable_by_path(struct unit_test_state *uts) +{ + ofnode node; + + if (!of_live_active()) { + printf("Live tree not active; ignore test\n"); + return 0; + } + + node = ofnode_path("/usb@2"); + + /* Test enabling devices */ + + ut_assert(!of_device_is_available(ofnode_to_np(node))); + dev_enable_by_path("/usb@2"); + ut_assert(of_device_is_available(ofnode_to_np(node))); + + /* Test disabling devices */ + + ut_assert(of_device_is_available(ofnode_to_np(node))); + dev_disable_by_path("/usb@2"); + ut_assert(!of_device_is_available(ofnode_to_np(node))); + + return 0; +} +DM_TEST(dm_test_fdt_disable_enable_by_path, DM_TESTF_SCAN_PDATA | + DM_TESTF_SCAN_FDT); + +/* Test a few uclass phandle functions */ +static int dm_test_fdt_phandle(struct unit_test_state *uts) +{ + struct udevice *back, *dev, *dev2; + + ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back)); + ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR, + back, "missing", &dev)); + ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back, + "power-supply", &dev)); + ut_asserteq(0, device_active(dev)); + ut_asserteq_str("ldo1", dev->name); + ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back, + "power-supply", &dev2)); + ut_asserteq_ptr(dev, dev2); + + return 0; +} +DM_TEST(dm_test_fdt_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test device_find_first_child_by_uclass() */ +static int dm_test_first_child(struct unit_test_state *uts) +{ + struct udevice *i2c, *dev, *dev2; + + ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c)); + ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_RTC, &dev)); + ut_asserteq_str("rtc@43", dev->name); + ut_assertok(device_find_child_by_name(i2c, "rtc@43", &dev2)); + ut_asserteq_ptr(dev, dev2); + ut_assertok(device_find_child_by_name(i2c, "rtc@61", &dev2)); + ut_asserteq_str("rtc@61", dev2->name); + + ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_I2C_EEPROM, + &dev)); + ut_asserteq_str("eeprom@2c", dev->name); + ut_assertok(device_find_child_by_name(i2c, "eeprom@2c", &dev2)); + ut_asserteq_ptr(dev, dev2); + + ut_asserteq(-ENODEV, device_find_first_child_by_uclass(i2c, + UCLASS_VIDEO, &dev)); + ut_asserteq(-ENODEV, device_find_child_by_name(i2c, "missing", &dev)); + + return 0; +} +DM_TEST(dm_test_first_child, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);