xref: /openbmc/u-boot/test/dm/nop.c (revision 3ba98ed8)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Test for the NOP uclass
4  *
5  * (C) Copyright 2019 - Texas Instruments Incorporated - http://www.ti.com/
6  * Jean-Jacques Hiblot <jjhiblot@ti.com>
7  */
8 
9 #include <common.h>
10 #include <dm.h>
11 #include <dm/ofnode.h>
12 #include <dm/lists.h>
13 #include <dm/device.h>
14 #include <dm/test.h>
15 #include <misc.h>
16 #include <test/ut.h>
17 
18 static int noptest_bind(struct udevice *parent)
19 {
20 	ofnode ofnode = dev_read_first_subnode(parent);
21 
22 	while (ofnode_valid(ofnode)) {
23 		struct udevice *dev;
24 		const char *bind_flag = ofnode_read_string(ofnode, "bind");
25 
26 		if (bind_flag && (strcmp(bind_flag, "True") == 0))
27 			lists_bind_fdt(parent, ofnode, &dev, false);
28 		ofnode = dev_read_next_subnode(ofnode);
29 	}
30 
31 	return 0;
32 }
33 
34 static const struct udevice_id noptest1_ids[] = {
35 	{
36 		.compatible = "sandbox,nop_sandbox1",
37 	},
38 	{ }
39 };
40 
41 U_BOOT_DRIVER(noptest_drv1) = {
42 	.name	= "noptest1_drv",
43 	.of_match	= noptest1_ids,
44 	.id	= UCLASS_NOP,
45 	.bind = noptest_bind,
46 };
47 
48 static const struct udevice_id noptest2_ids[] = {
49 	{
50 		.compatible = "sandbox,nop_sandbox2",
51 	},
52 	{ }
53 };
54 
55 U_BOOT_DRIVER(noptest_drv2) = {
56 	.name	= "noptest2_drv",
57 	.of_match	= noptest2_ids,
58 	.id	= UCLASS_NOP,
59 };
60 
61 static int dm_test_nop(struct unit_test_state *uts)
62 {
63 	struct udevice *dev;
64 
65 	ut_assertok(uclass_get_device_by_name(UCLASS_NOP, "nop-test_0", &dev));
66 	ut_assertok(uclass_get_device_by_name(UCLASS_NOP, "nop-test_1", &dev));
67 	ut_asserteq(-ENODEV,
68 		    uclass_get_device_by_name(UCLASS_NOP, "nop-test_2", &dev));
69 
70 	return 0;
71 }
72 
73 DM_TEST(dm_test_nop, DM_TESTF_FLAT_TREE | DM_TESTF_SCAN_FDT);
74