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https://github.com/AsahiLinux/u-boot
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e160f7d430
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
268 lines
6.7 KiB
C
268 lines
6.7 KiB
C
/*
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* Copyright (c) 2013 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <fdtdec.h>
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#include <malloc.h>
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#include <asm/io.h>
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#include <dm/test.h>
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#include <dm/root.h>
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#include <dm/uclass-internal.h>
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#include <dm/util.h>
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#include <test/ut.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
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{
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const struct dm_test_pdata *pdata = dev->platdata;
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struct dm_test_priv *priv = dev_get_priv(dev);
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*pingret = pingval + pdata->ping_add;
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priv->ping_total += *pingret;
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return 0;
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}
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static const struct test_ops test_ops = {
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.ping = testfdt_drv_ping,
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};
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static int testfdt_ofdata_to_platdata(struct udevice *dev)
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{
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struct dm_test_pdata *pdata = dev_get_platdata(dev);
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pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
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"ping-add", -1);
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pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
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"ping-expect");
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return 0;
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}
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static int testfdt_drv_probe(struct udevice *dev)
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{
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struct dm_test_priv *priv = dev_get_priv(dev);
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priv->ping_total += DM_TEST_START_TOTAL;
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/*
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* If this device is on a bus, the uclass_flag will be set before
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* calling this function. This is used by
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* dm_test_bus_child_pre_probe_uclass().
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*/
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priv->uclass_total += priv->uclass_flag;
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return 0;
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}
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static const struct udevice_id testfdt_ids[] = {
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{
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.compatible = "denx,u-boot-fdt-test",
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.data = DM_TEST_TYPE_FIRST },
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{
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.compatible = "google,another-fdt-test",
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.data = DM_TEST_TYPE_SECOND },
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{ }
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};
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U_BOOT_DRIVER(testfdt_drv) = {
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.name = "testfdt_drv",
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.of_match = testfdt_ids,
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.id = UCLASS_TEST_FDT,
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.ofdata_to_platdata = testfdt_ofdata_to_platdata,
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.probe = testfdt_drv_probe,
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.ops = &test_ops,
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.priv_auto_alloc_size = sizeof(struct dm_test_priv),
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.platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
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};
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/* From here is the testfdt uclass code */
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int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
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{
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const struct test_ops *ops = device_get_ops(dev);
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if (!ops->ping)
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return -ENOSYS;
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return ops->ping(dev, pingval, pingret);
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}
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UCLASS_DRIVER(testfdt) = {
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.name = "testfdt",
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.id = UCLASS_TEST_FDT,
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.flags = DM_UC_FLAG_SEQ_ALIAS,
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};
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int dm_check_devices(struct unit_test_state *uts, int num_devices)
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{
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struct udevice *dev;
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int ret;
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int i;
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/*
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* Now check that the ping adds are what we expect. This is using the
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* ping-add property in each node.
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*/
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for (i = 0; i < num_devices; i++) {
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uint32_t base;
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ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
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ut_assert(!ret);
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/*
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* Get the 'ping-expect' property, which tells us what the
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* ping add should be. We don't use the platdata because we
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* want to test the code that sets that up
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* (testfdt_drv_probe()).
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*/
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base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
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"ping-expect");
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debug("dev=%d, base=%d: %s\n", i, base,
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fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL));
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ut_assert(!dm_check_operations(uts, dev, base,
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dev_get_priv(dev)));
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}
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return 0;
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}
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/* Test that FDT-based binding works correctly */
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static int dm_test_fdt(struct unit_test_state *uts)
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{
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const int num_devices = 6;
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struct udevice *dev;
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struct uclass *uc;
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int ret;
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int i;
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ret = dm_scan_fdt(gd->fdt_blob, false);
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ut_assert(!ret);
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ret = uclass_get(UCLASS_TEST_FDT, &uc);
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ut_assert(!ret);
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/* These are num_devices compatible root-level device tree nodes */
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ut_asserteq(num_devices, list_count_items(&uc->dev_head));
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/* Each should have platform data but no private data */
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for (i = 0; i < num_devices; i++) {
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ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
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ut_assert(!ret);
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ut_assert(!dev_get_priv(dev));
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ut_assert(dev->platdata);
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}
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ut_assertok(dm_check_devices(uts, num_devices));
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return 0;
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}
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DM_TEST(dm_test_fdt, 0);
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static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
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{
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struct uclass *uc;
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int ret;
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ret = dm_scan_fdt(gd->fdt_blob, true);
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ut_assert(!ret);
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ret = uclass_get(UCLASS_TEST_FDT, &uc);
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ut_assert(!ret);
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/* These is only one pre-reloc device */
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ut_asserteq(1, list_count_items(&uc->dev_head));
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return 0;
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}
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DM_TEST(dm_test_fdt_pre_reloc, 0);
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/* Test that sequence numbers are allocated properly */
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static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
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{
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struct udevice *dev;
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/* A few basic santiy tests */
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ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
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ut_asserteq_str("b-test", dev->name);
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ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
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ut_asserteq_str("a-test", dev->name);
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ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
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true, &dev));
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ut_asserteq_ptr(NULL, dev);
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/* Test aliases */
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ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
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ut_asserteq_str("e-test", dev->name);
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ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
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true, &dev));
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/*
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* Note that c-test nodes are not probed since it is not a top-level
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* node
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*/
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ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
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ut_asserteq_str("b-test", dev->name);
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/*
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* d-test wants sequence number 3 also, but it can't have it because
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* b-test gets it first.
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*/
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ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
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ut_asserteq_str("d-test", dev->name);
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/* d-test actually gets 0 */
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ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev));
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ut_asserteq_str("d-test", dev->name);
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/* initially no one wants seq 1 */
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ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1,
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&dev));
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ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
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ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
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/* But now that it is probed, we can find it */
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ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev));
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ut_asserteq_str("f-test", dev->name);
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return 0;
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}
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DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that we can find a device by device tree offset */
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static int dm_test_fdt_offset(struct unit_test_state *uts)
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{
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const void *blob = gd->fdt_blob;
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struct udevice *dev;
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int node;
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node = fdt_path_offset(blob, "/e-test");
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ut_assert(node > 0);
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ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
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&dev));
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ut_asserteq_str("e-test", dev->name);
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/* This node should not be bound */
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node = fdt_path_offset(blob, "/junk");
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ut_assert(node > 0);
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ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
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node, &dev));
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/* This is not a top level node so should not be probed */
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node = fdt_path_offset(blob, "/some-bus/c-test@5");
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ut_assert(node > 0);
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ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
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node, &dev));
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return 0;
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}
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DM_TEST(dm_test_fdt_offset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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