u-boot/test/dm/pwm.c
Simon Glass 43b41566f7 dm: sandbox: pwm: Add a basic pwm test
Unfortunately a test for the PWM uclass was not included when it was
submitted. This was noticed when trying to add more functionality:

   http://patchwork.ozlabs.org/patch/748172/

Add a simple test to get us started.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-27 16:49:02 -04:00

32 lines
807 B
C

/*
* Copyright (C) 2017 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <pwm.h>
#include <dm/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* Basic test of the pwm uclass */
static int dm_test_pwm_base(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(uclass_get_device(UCLASS_PWM, 0, &dev));
ut_assertok(pwm_set_config(dev, 0, 100, 50));
ut_assertok(pwm_set_enable(dev, 0, true));
ut_assertok(pwm_set_enable(dev, 1, true));
ut_assertok(pwm_set_enable(dev, 2, true));
ut_asserteq(-ENOSPC, pwm_set_enable(dev, 3, true));
ut_assertok(uclass_get_device(UCLASS_PWM, 1, &dev));
ut_asserteq(-ENODEV, uclass_get_device(UCLASS_PWM, 2, &dev));
return 0;
}
DM_TEST(dm_test_pwm_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);