1 // SPDX-License-Identifier: GPL-2.0+
2
3 #include <cros_ec.h>
4 #include <dm.h>
5 #include <pwm.h>
6 #include <asm/test.h>
7 #include <dm/test.h>
8 #include <test/test.h>
9 #include <test/ut.h>
10
dm_test_cros_ec_pwm(struct unit_test_state * uts)11 static int dm_test_cros_ec_pwm(struct unit_test_state *uts)
12 {
13 struct udevice *pwm;
14 struct udevice *ec;
15 uint duty;
16
17 ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "cros-ec-pwm", &pwm));
18 ut_assertnonnull(pwm);
19 ec = dev_get_parent(pwm);
20 ut_assertnonnull(ec);
21
22 ut_assertok(pwm_set_config(pwm, 0, 100, 50));
23 ut_assertok(pwm_set_enable(pwm, 0, true));
24 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty));
25 ut_asserteq(50 * EC_PWM_MAX_DUTY / 100, duty);
26
27 ut_assertok(pwm_set_config(pwm, 0, 15721, 2719));
28 ut_assertok(pwm_set_enable(pwm, 0, true));
29 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty));
30 ut_asserteq(2719 * EC_PWM_MAX_DUTY / 15721, duty);
31
32 ut_assertok(pwm_set_enable(pwm, 0, false));
33 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty));
34 ut_asserteq(0, duty);
35
36 ut_assertok(pwm_set_enable(pwm, 0, true));
37 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty));
38 ut_asserteq(2719 * EC_PWM_MAX_DUTY / 15721, duty);
39
40 ut_assertok(pwm_set_config(pwm, 1, 1000, 0));
41 ut_assertok(pwm_set_enable(pwm, 1, true));
42 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 1, &duty));
43 ut_asserteq(0, duty);
44
45 ut_assertok(pwm_set_config(pwm, 2, 1000, 1024));
46 ut_assertok(pwm_set_enable(pwm, 2, true));
47 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 2, &duty));
48 ut_asserteq(EC_PWM_MAX_DUTY, duty);
49
50 ut_assertok(pwm_set_config(pwm, 3, EC_PWM_MAX_DUTY, 0xABCD));
51 ut_assertok(pwm_set_enable(pwm, 3, true));
52 ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 3, &duty));
53 ut_asserteq(0xABCD, duty);
54
55 ut_asserteq(-EINVAL, pwm_set_enable(pwm, 4, true));
56
57 return 0;
58 }
59 DM_TEST(dm_test_cros_ec_pwm, UTF_SCAN_PDATA | UTF_SCAN_FDT);
60