u-boot/test/dm/syscon.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015 Google, Inc
 */

#include <common.h>
#include <dm.h>
#include <syscon.h>
#include <regmap.h>
#include <asm/test.h>
#include <dm/test.h>
#include <linux/err.h>
#include <test/ut.h>

/* Base test of system controllers */
static int dm_test_syscon_base(struct unit_test_state *uts)
{
	struct udevice *dev;

	ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
	ut_asserteq(SYSCON0, dev->driver_data);

	ut_assertok(uclass_get_device(UCLASS_SYSCON, 1, &dev));
	ut_asserteq(SYSCON1, dev->driver_data);

	ut_asserteq(-ENODEV, uclass_get_device(UCLASS_SYSCON, 2, &dev));

	return 0;
}
DM_TEST(dm_test_syscon_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test system controller finding */
static int dm_test_syscon_by_driver_data(struct unit_test_state *uts)
{
	struct udevice *dev;

	ut_assertok(syscon_get_by_driver_data(SYSCON0, &dev));
	ut_asserteq(SYSCON0, dev->driver_data);

	ut_assertok(syscon_get_by_driver_data(SYSCON1, &dev));
	ut_asserteq(SYSCON1, dev->driver_data);

	ut_asserteq(-ENODEV, syscon_get_by_driver_data(2, &dev));

	return 0;
}
DM_TEST(dm_test_syscon_by_driver_data, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test system controller by phandle */
static int dm_test_syscon_by_phandle(struct unit_test_state *uts)
{
	struct udevice *dev;
	struct regmap *map;

	ut_assertok(uclass_get_device_by_name(UCLASS_TEST_PROBE, "test4",
					      &dev));

	ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev, "first-syscon"));
	map = syscon_regmap_lookup_by_phandle(dev, "first-syscon");
	ut_assert(map);
	ut_assert(!IS_ERR(map));
	ut_asserteq(1, map->range_count);

	ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev,
							"second-sys-ctrl"));
	map = syscon_regmap_lookup_by_phandle(dev, "second-sys-ctrl");
	ut_assert(map);
	ut_assert(!IS_ERR(map));
	ut_asserteq(4, map->range_count);

	ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev,
							"third-syscon"));
	map = syscon_regmap_lookup_by_phandle(dev, "third-syscon");
	ut_assert(map);
	ut_assert(!IS_ERR(map));
	ut_asserteq(4, map->range_count);

	ut_assert(IS_ERR(syscon_regmap_lookup_by_phandle(dev, "not-present")));

	return 0;
}
DM_TEST(dm_test_syscon_by_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);