test/dm/syscon.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2015 Google, Inc
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <syscon.h>
   9 #include <regmap.h>
  10 #include <asm/test.h>
  11 #include <dm/test.h>
  12 #include <linux/err.h>
  13 #include <test/ut.h>
  14
  15 /* Base test of system controllers */
  16 static int dm_test_syscon_base(struct unit_test_state *uts)
  17 {
  18         struct udevice *dev;
  19
  20         ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
  21         ut_asserteq(SYSCON0, dev->driver_data);
  22
  23         ut_assertok(uclass_get_device(UCLASS_SYSCON, 1, &dev));
  24         ut_asserteq(SYSCON1, dev->driver_data);
  25
  26         ut_asserteq(-ENODEV, uclass_get_device(UCLASS_SYSCON, 2, &dev));
  27
  28         return 0;
  29 }
  30 DM_TEST(dm_test_syscon_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  31
  32 /* Test system controller finding */
  33 static int dm_test_syscon_by_driver_data(struct unit_test_state *uts)
  34 {
  35         struct udevice *dev;
  36
  37         ut_assertok(syscon_get_by_driver_data(SYSCON0, &dev));
  38         ut_asserteq(SYSCON0, dev->driver_data);
  39
  40         ut_assertok(syscon_get_by_driver_data(SYSCON1, &dev));
  41         ut_asserteq(SYSCON1, dev->driver_data);
  42
  43         ut_asserteq(-ENODEV, syscon_get_by_driver_data(2, &dev));
  44
  45         return 0;
  46 }
  47 DM_TEST(dm_test_syscon_by_driver_data, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  48
  49 /* Test system controller by phandle */
  50 static int dm_test_syscon_by_phandle(struct unit_test_state *uts)
  51 {
  52         struct udevice *dev;
  53         struct regmap *map;
  54
  55         ut_assertok(uclass_get_device_by_name(UCLASS_TEST_PROBE, "test4",
  56                                               &dev));
  57
  58         ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev, "first-syscon"));
  59         map = syscon_regmap_lookup_by_phandle(dev, "first-syscon");
  60         ut_assert(map);
  61         ut_assert(!IS_ERR(map));
  62         ut_asserteq(1, map->range_count);
  63
  64         ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev,
  65                                                         "second-sys-ctrl"));
  66         map = syscon_regmap_lookup_by_phandle(dev, "second-sys-ctrl");
  67         ut_assert(map);
  68         ut_assert(!IS_ERR(map));
  69         ut_asserteq(4, map->range_count);
  70
  71         ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev,
  72                                                         "third-syscon"));
  73         map = syscon_regmap_lookup_by_phandle(dev, "third-syscon");
  74         ut_assert(map);
  75         ut_assert(!IS_ERR(map));
  76         ut_asserteq(4, map->range_count);
  77
  78         ut_assert(IS_ERR(syscon_regmap_lookup_by_phandle(dev, "not-present")));
  79
  80         return 0;
  81 }
  82 DM_TEST(dm_test_syscon_by_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);