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Jordan Yatescarlescufi
Jordan Yates
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carlescufi
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tests: pm: test pm_device_driver_init
Test that `pm_device_driver_init` puts devices into the appropriate state depending on the devicetree configuration. Signed-off-by: Jordan Yates <[email protected]>
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‎tests/subsys/pm/device_driver_init/CMakeLists.txt‎

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# Copyright (c) 2023, CSIRO.
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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(device_driver_init)
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target_sources(app PRIVATE src/main.c)

‎tests/subsys/pm/device_driver_init/app.overlay‎

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/ {
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test_reg: test_reg {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 0 0>;
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};
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test_reg_chained: test_reg_chained {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 1 0>;
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power-domain = <&test_reg>;
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};
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test_reg_chained_auto: test_reg_chained_auto {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 2 0>;
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power-domain = <&test_reg>;
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zephyr,pm-device-runtime-auto;
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};
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test_reg_auto: test_reg_auto {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 3 0>;
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zephyr,pm-device-runtime-auto;
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};
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test_reg_auto_chained: test_reg_auto_chained {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 4 0>;
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power-domain = <&test_reg_auto>;
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};
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test_reg_auto_chained_auto: test_reg_auto_chained_auto {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 5 0>;
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power-domain = <&test_reg_auto>;
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zephyr,pm-device-runtime-auto;
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};
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test_reg_disabled: test_reg_disabled {
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compatible = "power-domain-gpio";
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enable-gpios = <&gpio0 6 0>;
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status = "disabled";
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};
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};

‎tests/subsys/pm/device_driver_init/prj.conf‎

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# Copyright (c) 2023, Commonwealth Scientific and Industrial Research
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# Organisation (CSIRO) ABN 41 687 119 230.
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CONFIG_ZTEST=y
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CONFIG_MP_MAX_NUM_CPUS=1
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CONFIG_GPIO=y
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CONFIG_GPIO_GET_CONFIG=y
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CONFIG_POWER_DOMAIN=y
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CONFIG_ZTEST_NEW_API=y

‎tests/subsys/pm/device_driver_init/src/main.c‎

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/*
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* Copyright (c) 2023, Commonwealth Scientific and Industrial Research
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* Organisation (CSIRO) ABN 41 687 119 230.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* State checking in this test is done via the GPIO state instead of
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* the PM API as this test runs without the PM api enabled.
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*/
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#include <zephyr/ztest.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/pm/device.h>
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#include <zephyr/pm/device_runtime.h>
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#define POWER_GPIO_CONFIG_IS(node_id, config)\
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{\
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const struct gpio_dt_spec gpio = GPIO_DT_SPEC_GET(node_id, enable_gpios);\
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gpio_flags_t gpio_config; \
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int rc = gpio_pin_get_config_dt(&gpio, &gpio_config); \
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zassert_equal(rc, 0, "GPIO config retrieval failed"); \
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zassert_equal(gpio_config, config, "Unexpected config");\
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}
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#define DEVICE_STATE_IS(node_id, value) \
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rc = pm_device_state_get(DEVICE_DT_GET(node_id), &state); \
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zassert_equal(rc, 0, "Device state retrieval failed"); \
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zassert_equal(state, value, "Unexpected device state");
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ZTEST(device_driver_init, test_demo)
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{
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#if !IS_ENABLED(CONFIG_PM) || !IS_ENABLED(CONFIG_PM_DEVICE_RUNTIME)
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/* Every regulator should be in "active" mode automatically.
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* State checking via GPIO as PM API is disabled.
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*/
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_chained), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_chained_auto), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_auto), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_auto_chained), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_auto_chained_auto), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_disabled), GPIO_DISCONNECTED);
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#endif
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#if IS_ENABLED(CONFIG_PM_DEVICE_RUNTIME)
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enum pm_device_state state;
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int rc;
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/* No device runtime PM, starts on */
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DEVICE_STATE_IS(DT_NODELABEL(test_reg), PM_DEVICE_STATE_ACTIVE);
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DEVICE_STATE_IS(DT_NODELABEL(test_reg_chained), PM_DEVICE_STATE_ACTIVE);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg), GPIO_OUTPUT_HIGH);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_chained), GPIO_OUTPUT_HIGH);
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/* Device powered, zephyr,pm-device-runtime-auto, starts suspended */
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DEVICE_STATE_IS(DT_NODELABEL(test_reg_chained_auto), PM_DEVICE_STATE_SUSPENDED);
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DEVICE_STATE_IS(DT_NODELABEL(test_reg_auto), PM_DEVICE_STATE_SUSPENDED);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_chained_auto), GPIO_OUTPUT_LOW);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_auto), GPIO_OUTPUT_LOW);
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/* Device not powered, starts off */
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DEVICE_STATE_IS(DT_NODELABEL(test_reg_auto_chained), PM_DEVICE_STATE_OFF);
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DEVICE_STATE_IS(DT_NODELABEL(test_reg_auto_chained_auto), PM_DEVICE_STATE_OFF);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_auto_chained), GPIO_DISCONNECTED);
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POWER_GPIO_CONFIG_IS(DT_NODELABEL(test_reg_auto_chained_auto), GPIO_DISCONNECTED);
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#endif
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}
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ZTEST_SUITE(device_driver_init, NULL, NULL, NULL, NULL, NULL);

‎tests/subsys/pm/device_driver_init/testcase.yaml‎

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tests:
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pm.device_driver_init:
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tags: pm
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platform_allow: qemu_cortex_m3
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pm.device_driver_init.pm:
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tags: pm
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platform_allow: qemu_cortex_m3
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extra_configs:
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- CONFIG_PM=y
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- CONFIG_PM_DEVICE=y
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- CONFIG_PM_DEVICE_POWER_DOMAIN=y
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pm.device_driver_init.pm_device_runtime:
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tags: pm
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platform_allow: qemu_cortex_m3
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extra_configs:
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- CONFIG_PM=y
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- CONFIG_PM_DEVICE=y
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- CONFIG_PM_DEVICE_POWER_DOMAIN=y
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- CONFIG_PM_DEVICE_RUNTIME=y

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