1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <fdtdec.h>
9*4882a593Smuzhiyun #include <dm.h>
10*4882a593Smuzhiyun #include <dm/device.h>
11*4882a593Smuzhiyun #include <dm/root.h>
12*4882a593Smuzhiyun #include <dm/test.h>
13*4882a593Smuzhiyun #include <dm/util.h>
14*4882a593Smuzhiyun #include <power/pmic.h>
15*4882a593Smuzhiyun #include <spmi/spmi.h>
16*4882a593Smuzhiyun #include <asm/gpio.h>
17*4882a593Smuzhiyun #include <test/ut.h>
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun /* Test if bus childs got probed propperly*/
dm_test_spmi_probe(struct unit_test_state * uts)22*4882a593Smuzhiyun static int dm_test_spmi_probe(struct unit_test_state *uts)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun const char *name = "spmi@0";
25*4882a593Smuzhiyun struct udevice *bus, *dev;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun /* Check bus name */
30*4882a593Smuzhiyun ut_asserteq_str(name, bus->name);
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun /* Check that it has some devices */
33*4882a593Smuzhiyun ut_asserteq(device_has_children(bus), true);
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun ut_assertok(device_find_first_child(bus, &dev));
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun /* There should be at least one child */
38*4882a593Smuzhiyun ut_assertnonnull(dev);
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /* Check that only PMICs are connected to the bus */
41*4882a593Smuzhiyun while (dev) {
42*4882a593Smuzhiyun ut_asserteq(device_get_uclass_id(dev), UCLASS_PMIC);
43*4882a593Smuzhiyun device_find_next_child(&dev);
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun return 0;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun DM_TEST(dm_test_spmi_probe, DM_TESTF_SCAN_FDT);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun /* Test if it's possible to read bus directly and indirectly */
dm_test_spmi_access(struct unit_test_state * uts)51*4882a593Smuzhiyun static int dm_test_spmi_access(struct unit_test_state *uts)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun const char *pmic_name = "pm8916@0";
54*4882a593Smuzhiyun struct udevice *bus, *pmic;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun ut_assertok(device_get_child(bus, 0, &pmic));
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun /* Sanity check if it's proper PMIC */
61*4882a593Smuzhiyun ut_asserteq_str(pmic_name, pmic->name);
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun /* Read PMIC ID reg using SPMI bus - it assumes it has slaveID == 0*/
64*4882a593Smuzhiyun ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x4), 0x10);
65*4882a593Smuzhiyun ut_asserteq(spmi_reg_read(bus, 0, 0xC0, 0x5), 0x5);
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun /* Read ID reg via pmic interface */
68*4882a593Smuzhiyun ut_asserteq(pmic_reg_read(pmic, 0xC004), 0x10);
69*4882a593Smuzhiyun ut_asserteq(pmic_reg_read(pmic, 0xC005), 0x5);
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun return 0;
72*4882a593Smuzhiyun }
73*4882a593Smuzhiyun DM_TEST(dm_test_spmi_access, DM_TESTF_SCAN_FDT);
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun /* Test if it's possible to access GPIO that should be in pmic */
dm_test_spmi_access_peripheral(struct unit_test_state * uts)77*4882a593Smuzhiyun static int dm_test_spmi_access_peripheral(struct unit_test_state *uts)
78*4882a593Smuzhiyun {
79*4882a593Smuzhiyun struct udevice *dev;
80*4882a593Smuzhiyun unsigned int offset, gpio;
81*4882a593Smuzhiyun const char *name;
82*4882a593Smuzhiyun int offset_count;
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun /* Get second pin of PMIC GPIO */
85*4882a593Smuzhiyun ut_assertok(gpio_lookup_name("spmi1", &dev, &offset, &gpio));
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun /* Check if PMIC is parent */
88*4882a593Smuzhiyun ut_asserteq(device_get_uclass_id(dev->parent), UCLASS_PMIC);
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun /* This should be second gpio */
91*4882a593Smuzhiyun ut_asserteq(1, offset);
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun name = gpio_get_bank_info(dev, &offset_count);
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun /* Check bank name */
96*4882a593Smuzhiyun ut_asserteq_str("spmi", name);
97*4882a593Smuzhiyun /* Check pin count */
98*4882a593Smuzhiyun ut_asserteq(4, offset_count);
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun ut_assertok(gpio_request(gpio, "testing"));
101*4882a593Smuzhiyun
102*4882a593Smuzhiyun /* Try to set/clear gpio */
103*4882a593Smuzhiyun ut_assertok(gpio_direction_output(gpio, 0));
104*4882a593Smuzhiyun ut_asserteq(gpio_get_value(gpio), 0);
105*4882a593Smuzhiyun ut_assertok(gpio_direction_output(gpio, 1));
106*4882a593Smuzhiyun ut_asserteq(gpio_get_value(gpio), 1);
107*4882a593Smuzhiyun ut_assertok(gpio_direction_input(gpio));
108*4882a593Smuzhiyun ut_asserteq(gpio_get_value(gpio), 1);
109*4882a593Smuzhiyun
110*4882a593Smuzhiyun ut_assertok(gpio_free(gpio));
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun return 0;
113*4882a593Smuzhiyun }
114*4882a593Smuzhiyun DM_TEST(dm_test_spmi_access_peripheral, DM_TESTF_SCAN_FDT);
115