1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2017 Google, Inc
4 */
5
6 #include <dm.h>
7 #include <pwm.h>
8 #include <asm/test.h>
9 #include <dm/test.h>
10 #include <test/test.h>
11 #include <test/ut.h>
12
13 /* Basic test of the pwm uclass */
dm_test_pwm_base(struct unit_test_state * uts)14 static int dm_test_pwm_base(struct unit_test_state *uts)
15 {
16 struct udevice *dev;
17 uint period_ns;
18 uint duty_ns;
19 bool enable;
20 bool polarity;
21
22 ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "pwm", &dev));
23 ut_assertnonnull(dev);
24 ut_assertok(pwm_set_config(dev, 0, 100, 50));
25 ut_assertok(pwm_set_enable(dev, 0, true));
26 ut_assertok(pwm_set_enable(dev, 1, true));
27 ut_assertok(pwm_set_enable(dev, 2, true));
28 ut_asserteq(-ENOSPC, pwm_set_enable(dev, 3, true));
29 ut_assertok(pwm_set_invert(dev, 0, true));
30
31 ut_assertok(pwm_set_config(dev, 2, 100, 50));
32 ut_assertok(sandbox_pwm_get_config(dev, 2, &period_ns, &duty_ns,
33 &enable, &polarity));
34 ut_asserteq(period_ns, 4096);
35 ut_asserteq(duty_ns, 50 * 4096 / 100);
36
37 ut_assertok(uclass_get_device(UCLASS_PWM, 0, &dev));
38 ut_assertok(uclass_get_device(UCLASS_PWM, 1, &dev));
39 ut_assertok(uclass_get_device(UCLASS_PWM, 2, &dev));
40 ut_asserteq(-ENODEV, uclass_get_device(UCLASS_PWM, 3, &dev));
41
42 return 0;
43 }
44 DM_TEST(dm_test_pwm_base, UTF_SCAN_PDATA | UTF_SCAN_FDT);
45