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 <common.h> 10 #include <backlight.h> 11 #include <dm.h> 12 #include <panel.h> 13 #include <video.h> 14 #include <asm/gpio.h> 15 #include <asm/test.h> 16 #include <dm/test.h> 17 #include <test/ut.h> 18 #include <power/regulator.h> 19 20 /* Basic test of the panel uclass */ 21 static 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_first_device_err(UCLASS_PWM, &pwm)); 31 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); 32 ut_assertok(regulator_get_by_platname("VDD_EMMC_1.8V", ®)); 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 / 256, 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 return 0; 49 } 50 DM_TEST(dm_test_panel, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 51