| Mateusz Kulikowski | d33776e | 2016-03-31 23:12:28 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <fdtdec.h> |
| 9 | #include <dm.h> |
| 10 | #include <dm/device.h> |
| 11 | #include <dm/root.h> |
| 12 | #include <dm/test.h> |
| 13 | #include <dm/util.h> |
| 14 | #include <power/pmic.h> |
| 15 | #include <spmi/spmi.h> |
| 16 | #include <asm/gpio.h> |
| 17 | #include <test/ut.h> |
| 18 | |
| 19 | DECLARE_GLOBAL_DATA_PTR; |
| 20 | |
| 21 | /* Test if bus childs got probed propperly*/ |
| 22 | static int dm_test_spmi_probe(struct unit_test_state *uts) |
| 23 | { |
| 24 | const char *name = "spmi@0"; |
| 25 | struct udevice *bus, *dev; |
| 26 | |
| 27 | ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus)); |
| 28 | |
| 29 | /* Check bus name */ |
| 30 | ut_asserteq_str(name, bus->name); |
| 31 | |
| 32 | /* Check that it has some devices */ |
| 33 | ut_asserteq(device_has_children(bus), true); |
| 34 | |
| 35 | ut_assertok(device_find_first_child(bus, &dev)); |
| 36 | |
| 37 | /* There should be at least one child */ |
| 38 | ut_assertnonnull(dev); |
| 39 | |
| 40 | /* Check that only PMICs are connected to the bus */ |
| 41 | while (dev) { |
| 42 | ut_asserteq(device_get_uclass_id(dev), UCLASS_PMIC); |
| 43 | device_find_next_child(&dev); |
| 44 | } |
| 45 | |
| 46 | return 0; |
| 47 | } |
| 48 | DM_TEST(dm_test_spmi_probe, DM_TESTF_SCAN_FDT); |
| 49 | |
| 50 | /* Test if it's possible to read bus directly and indirectly */ |
| 51 | static int dm_test_spmi_access(struct unit_test_state *uts) |
| 52 | { |
| 53 | const char *pmic_name = "pm8916@0"; |
| 54 | struct udevice *bus, *pmic; |
| 55 | |
| 56 | ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus)); |
| 57 | |
| 58 | ut_assertok(device_get_child(bus, 0, &pmic)); |
| 59 | |
| 60 | /* Sanity check if it's proper PMIC */ |
| 61 | ut_asserteq_str(pmic_name, pmic->name); |
| 62 | |
| 63 | /* Read PMIC ID reg using SPMI bus - it assumes it has slaveID == 0*/ |
| 64 | ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x4), 0x10); |
| 65 | ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x5), 0x5); |
| 66 | |
| 67 | /* Read ID reg via pmic interface */ |
| 68 | ut_asserteq(pmic_reg_read(pmic, 0xC004), 0x10); |
| 69 | ut_asserteq(pmic_reg_read(pmic, 0xC005), 0x5); |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | DM_TEST(dm_test_spmi_access, DM_TESTF_SCAN_FDT); |
| 74 | |
| 75 | |
| 76 | /* Test if it's possible to access GPIO that should be in pmic */ |
| 77 | static int dm_test_spmi_access_peripheral(struct unit_test_state *uts) |
| 78 | { |
| 79 | struct udevice *dev; |
| 80 | unsigned int offset, gpio; |
| 81 | const char *name; |
| 82 | int offset_count; |
| 83 | |
| 84 | /* Get second pin of PMIC GPIO */ |
| 85 | ut_assertok(gpio_lookup_name("spmi1", &dev, &offset, &gpio)); |
| 86 | |
| 87 | /* Check if PMIC is parent */ |
| 88 | ut_asserteq(device_get_uclass_id(dev->parent), UCLASS_PMIC); |
| 89 | |
| 90 | /* This should be second gpio */ |
| 91 | ut_asserteq(1, offset); |
| 92 | |
| 93 | name = gpio_get_bank_info(dev, &offset_count); |
| 94 | |
| 95 | /* Check bank name */ |
| 96 | ut_asserteq_str("spmi", name); |
| 97 | /* Check pin count */ |
| 98 | ut_asserteq(4, offset_count); |
| 99 | |
| 100 | ut_assertok(gpio_request(gpio, "testing")); |
| 101 | |
| 102 | /* Try to set/clear gpio */ |
| 103 | ut_assertok(gpio_direction_output(gpio, 0)); |
| 104 | ut_asserteq(gpio_get_value(gpio), 0); |
| 105 | ut_assertok(gpio_direction_output(gpio, 1)); |
| 106 | ut_asserteq(gpio_get_value(gpio), 1); |
| 107 | ut_assertok(gpio_direction_input(gpio)); |
| 108 | ut_asserteq(gpio_get_value(gpio), 1); |
| 109 | |
| 110 | ut_assertok(gpio_free(gpio)); |
| 111 | |
| 112 | return 0; |
| 113 | } |
| 114 | DM_TEST(dm_test_spmi_access_peripheral, DM_TESTF_SCAN_FDT); |