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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 5bd3c9d5565a40e3494867fa501e45be53d5e49a / . / test / dm / spmi.c
blob: e6a910859e3a48a6f424b6f5c9031f296af8b4cb [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Mateusz Kulikowskid33776e2016-03-31 23:12:28 +0200[diff] [blame]2/*
3 * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Mateusz Kulikowskid33776e2016-03-31 23:12:28 +0200[diff] [blame]4 */
5
6#include <common.h>
7#include <fdtdec.h>
8#include <dm.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/ut.h>
17
Mateusz Kulikowskid33776e2016-03-31 23:12:28 +0200[diff] [blame]18/* Test if bus childs got probed propperly*/
19static int dm_test_spmi_probe(struct unit_test_state *uts)
20{
21 const char *name = "spmi@0";
22 struct udevice *bus, *dev;
23
24 ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
25
26 /* Check bus name */
27 ut_asserteq_str(name, bus->name);
28
29 /* Check that it has some devices */
30 ut_asserteq(device_has_children(bus), true);
31
32 ut_assertok(device_find_first_child(bus, &dev));
33
34 /* There should be at least one child */
35 ut_assertnonnull(dev);
36
37 /* Check that only PMICs are connected to the bus */
38 while (dev) {
39 ut_asserteq(device_get_uclass_id(dev), UCLASS_PMIC);
40 device_find_next_child(&dev);
41 }
42
43 return 0;
44}
45DM_TEST(dm_test_spmi_probe, DM_TESTF_SCAN_FDT);
46
47/* Test if it's possible to read bus directly and indirectly */
48static int dm_test_spmi_access(struct unit_test_state *uts)
49{
50 const char *pmic_name = "pm8916@0";
51 struct udevice *bus, *pmic;
52
53 ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
54
55 ut_assertok(device_get_child(bus, 0, &pmic));
56
57 /* Sanity check if it's proper PMIC */
58 ut_asserteq_str(pmic_name, pmic->name);
59
60 /* Read PMIC ID reg using SPMI bus - it assumes it has slaveID == 0*/
61 ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x4), 0x10);
62 ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x5), 0x5);
63
64 /* Read ID reg via pmic interface */
65 ut_asserteq(pmic_reg_read(pmic, 0xC004), 0x10);
66 ut_asserteq(pmic_reg_read(pmic, 0xC005), 0x5);
67
68 return 0;
69}
70DM_TEST(dm_test_spmi_access, DM_TESTF_SCAN_FDT);
71
72
73/* Test if it's possible to access GPIO that should be in pmic */
74static int dm_test_spmi_access_peripheral(struct unit_test_state *uts)
75{
76 struct udevice *dev;
77 unsigned int offset, gpio;
78 const char *name;
79 int offset_count;
80
81 /* Get second pin of PMIC GPIO */
82 ut_assertok(gpio_lookup_name("spmi1", &dev, &offset, &gpio));
83
84 /* Check if PMIC is parent */
85 ut_asserteq(device_get_uclass_id(dev->parent), UCLASS_PMIC);
86
87 /* This should be second gpio */
88 ut_asserteq(1, offset);
89
90 name = gpio_get_bank_info(dev, &offset_count);
91
92 /* Check bank name */
93 ut_asserteq_str("spmi", name);
94 /* Check pin count */
95 ut_asserteq(4, offset_count);
96
97 ut_assertok(gpio_request(gpio, "testing"));
98
99 /* Try to set/clear gpio */
100 ut_assertok(gpio_direction_output(gpio, 0));
101 ut_asserteq(gpio_get_value(gpio), 0);
102 ut_assertok(gpio_direction_output(gpio, 1));
103 ut_asserteq(gpio_get_value(gpio), 1);
104 ut_assertok(gpio_direction_input(gpio));
105 ut_asserteq(gpio_get_value(gpio), 1);
106
107 ut_assertok(gpio_free(gpio));
108
109 return 0;
110}
111DM_TEST(dm_test_spmi_access_peripheral, DM_TESTF_SCAN_FDT);