1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
4 */
5
6#include <fdtdec.h>
7#include <dm.h>
8#include <malloc.h>
9#include <dm/device.h>
10#include <dm/root.h>
11#include <dm/test.h>
12#include <dm/util.h>
13#include <power/pmic.h>
14#include <spmi/spmi.h>
15#include <asm/gpio.h>
16#include <test/test.h>
17#include <test/ut.h>
18
19/* Test if bus children got probed properly*/
20static int dm_test_spmi_probe(struct unit_test_state *uts)
21{
22	const char *name = "spmi@0";
23	struct udevice *bus, *dev;
24
25	ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
26
27	/* Check bus name */
28	ut_asserteq_str(name, bus->name);
29
30	/* Check that it has some devices */
31	ut_asserteq(device_has_children(bus), true);
32
33	ut_assertok(device_find_first_child(bus, &dev));
34
35	/* There should be at least one child */
36	ut_assertnonnull(dev);
37
38	/* Check that only PMICs are connected to the bus */
39	while (dev) {
40		ut_asserteq(device_get_uclass_id(dev), UCLASS_PMIC);
41		device_find_next_child(&dev);
42	}
43
44	return 0;
45}
46DM_TEST(dm_test_spmi_probe, UT_TESTF_SCAN_FDT);
47
48/* Test if it's possible to read bus directly and indirectly */
49static int dm_test_spmi_access(struct unit_test_state *uts)
50{
51	const char *pmic_name = "pm8916@0";
52	struct udevice *bus, *pmic;
53
54	ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
55
56	ut_assertok(device_get_child(bus, 0, &pmic));
57
58	/* Sanity check if it's proper PMIC */
59	ut_asserteq_str(pmic_name, pmic->name);
60
61	/* Read PMIC ID reg using SPMI bus - it assumes it has slaveID == 0*/
62	ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x4), 0x10);
63	ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x5), 0x5);
64
65	/* Read ID reg via pmic interface */
66	ut_asserteq(pmic_reg_read(pmic, 0xC004), 0x10);
67	ut_asserteq(pmic_reg_read(pmic, 0xC005), 0x5);
68
69	return 0;
70}
71DM_TEST(dm_test_spmi_access, UT_TESTF_SCAN_FDT);
72
73
74/* Test if it's possible to access GPIO that should be in pmic */
75static int dm_test_spmi_access_peripheral(struct unit_test_state *uts)
76{
77	struct udevice *dev;
78	unsigned int offset, gpio;
79	const char *name;
80	int offset_count;
81
82	/* Get second pin of PMIC GPIO */
83	ut_assertok(gpio_lookup_name("pmic1", &dev, &offset, &gpio));
84
85	/* Check if PMIC is parent */
86	ut_asserteq(device_get_uclass_id(dev->parent), UCLASS_PMIC);
87
88	/* This should be second gpio */
89	ut_asserteq(1, offset);
90
91	name = gpio_get_bank_info(dev, &offset_count);
92
93	/* Check bank name */
94	ut_asserteq_str("pmic", name);
95	/* Check pin count */
96	ut_asserteq(4, offset_count);
97
98	ut_assertok(gpio_request(gpio, "testing"));
99
100	/* Try to set/clear gpio */
101	ut_assertok(gpio_direction_output(gpio, 0));
102	ut_asserteq(gpio_get_value(gpio), 0);
103	ut_assertok(gpio_direction_output(gpio, 1));
104	ut_asserteq(gpio_get_value(gpio), 1);
105	ut_assertok(gpio_direction_input(gpio));
106	ut_asserteq(gpio_get_value(gpio), 1);
107
108	ut_assertok(gpio_free(gpio));
109
110	return 0;
111}
112DM_TEST(dm_test_spmi_access_peripheral, UT_TESTF_SCAN_FDT);
113