1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Test for panel uclass
4 *
5 * Copyright (c) 2018 Google, Inc
6 * Written by Simon Glass <sjg@chromium.org>
7 */
8
9#include <backlight.h>
10#include <dm.h>
11#include <panel.h>
12#include <video.h>
13#include <asm/gpio.h>
14#include <asm/test.h>
15#include <dm/test.h>
16#include <power/regulator.h>
17#include <test/test.h>
18#include <test/ut.h>
19
20/* Basic test of the panel uclass */
21static int dm_test_panel(struct unit_test_state *uts)
22{
23	struct udevice *dev, *pwm, *gpio, *reg;
24	uint period_ns;
25	uint duty_ns;
26	bool enable;
27	bool polarity;
28
29	ut_assertok(uclass_first_device_err(UCLASS_PANEL, &dev));
30	ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "pwm", &pwm));
31	ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
32	ut_assertok(regulator_get_by_platname("VDD_EMMC_1.8V", &reg));
33	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
34					   &enable, &polarity));
35	ut_asserteq(false, enable);
36	ut_asserteq(false, regulator_get_enable(reg));
37
38	ut_assertok(panel_enable_backlight(dev));
39	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
40					   &enable, &polarity));
41	ut_asserteq(1000, period_ns);
42	ut_asserteq(170 * 1000 / 255, duty_ns);
43	ut_asserteq(true, enable);
44	ut_asserteq(false, polarity);
45	ut_asserteq(1, sandbox_gpio_get_value(gpio, 1));
46	ut_asserteq(true, regulator_get_enable(reg));
47
48	ut_assertok(panel_set_backlight(dev, 40));
49	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
50					   &enable, &polarity));
51	ut_asserteq(64 * 1000 / 255, duty_ns);
52
53	ut_assertok(panel_set_backlight(dev, BACKLIGHT_MAX));
54	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
55					   &enable, &polarity));
56	ut_asserteq(255 * 1000 / 255, duty_ns);
57
58	ut_assertok(panel_set_backlight(dev, BACKLIGHT_MIN));
59	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
60					   &enable, &polarity));
61	ut_asserteq(0 * 1000 / 255, duty_ns);
62	ut_asserteq(1, sandbox_gpio_get_value(gpio, 1));
63
64	ut_assertok(panel_set_backlight(dev, BACKLIGHT_DEFAULT));
65	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
66					   &enable, &polarity));
67	ut_asserteq(true, enable);
68	ut_asserteq(170 * 1000 / 255, duty_ns);
69
70	ut_assertok(panel_set_backlight(dev, BACKLIGHT_OFF));
71	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
72					   &enable, &polarity));
73	ut_asserteq(0 * 1000 / 255, duty_ns);
74	ut_asserteq(0, sandbox_gpio_get_value(gpio, 1));
75	ut_asserteq(false, regulator_get_enable(reg));
76
77	return 0;
78}
79DM_TEST(dm_test_panel, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
80