test/dm/cros_ec_pwm.c

   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
  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, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);