LXR uboot/test/dm/panel.c

   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 */
  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_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", &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 / 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        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 / 256, 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 / 256, 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 / 256, 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 / 256, 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 / 256, 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, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  80