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