diff options
| -rw-r--r-- | drivers/leds/.kunitconfig | 4 | ||||
| -rw-r--r-- | drivers/leds/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/leds/Makefile | 1 | ||||
| -rw-r--r-- | drivers/leds/led-test.c | 76 |
4 files changed, 88 insertions, 0 deletions
diff --git a/drivers/leds/.kunitconfig b/drivers/leds/.kunitconfig new file mode 100644 index 000000000000..5180f77910a1 --- /dev/null +++ b/drivers/leds/.kunitconfig @@ -0,0 +1,4 @@ +CONFIG_KUNIT=y +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_KUNIT_TEST=y diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index b107dbe1fa90..6e3dce7e35a4 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -55,6 +55,13 @@ config LEDS_BRIGHTNESS_HW_CHANGED See Documentation/ABI/testing/sysfs-class-led for details. +config LEDS_KUNIT_TEST + tristate "KUnit tests for LEDs" + depends on KUNIT && LEDS_CLASS + default KUNIT_ALL_TESTS + help + Say Y here to enable KUnit testing for the LEDs framework. + comment "LED drivers" config LEDS_88PM860X diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 2f170d69dcbf..9a0333ec1a86 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_LEDS_CLASS) += led-class.o obj-$(CONFIG_LEDS_CLASS_FLASH) += led-class-flash.o obj-$(CONFIG_LEDS_CLASS_MULTICOLOR) += led-class-multicolor.o obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o +obj-$(CONFIG_LEDS_KUNIT_TEST) += led-test.o # LED Platform Drivers (keep this sorted, M-| sort) obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o diff --git a/drivers/leds/led-test.c b/drivers/leds/led-test.c new file mode 100644 index 000000000000..068c9d0eb683 --- /dev/null +++ b/drivers/leds/led-test.c @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2025 Google LLC + * + * Author: Lee Jones <lee@kernel.org> + */ + +#include <kunit/device.h> +#include <kunit/test.h> +#include <linux/device.h> +#include <linux/leds.h> + +struct led_test_ddata { + struct led_classdev cdev; + struct device *dev; +}; + +static void led_test_class_register(struct kunit *test) +{ + struct led_test_ddata *ddata = test->priv; + struct led_classdev *cdev = &ddata->cdev; + struct device *dev = ddata->dev; + int ret; + + cdev->name = "led-test"; + + ret = devm_led_classdev_register(dev, cdev); + KUNIT_ASSERT_EQ(test, ret, 0); + if (ret) + return; +} + +static struct kunit_case led_test_cases[] = { + KUNIT_CASE(led_test_class_register), + { } +}; + +static int led_test_init(struct kunit *test) +{ + struct led_test_ddata *ddata; + struct device *dev; + + ddata = kunit_kzalloc(test, sizeof(*ddata), GFP_KERNEL); + if (!ddata) + return -ENOMEM; + + test->priv = ddata; + + dev = kunit_device_register(test, "led_test"); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + ddata->dev = get_device(dev); + + return 0; +} + +static void led_test_exit(struct kunit *test) +{ + struct led_test_ddata *ddata = test->priv; + + if (ddata && ddata->dev) + put_device(ddata->dev); +} + +static struct kunit_suite led_test_suite = { + .name = "led", + .init = led_test_init, + .exit = led_test_exit, + .test_cases = led_test_cases, +}; +kunit_test_suite(led_test_suite); + +MODULE_AUTHOR("Lee Jones <lee@kernel.org>"); +MODULE_DESCRIPTION("KUnit tests for the LED framework"); +MODULE_LICENSE("GPL"); |