1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
10 #include <dm/device.h>
14 #include <power/pmic.h>
15 #include <spmi/spmi.h>
19 /* Test if bus childs got probed propperly*/
20 static int dm_test_spmi_probe(struct unit_test_state *uts)
22 const char *name = "spmi@0";
23 struct udevice *bus, *dev;
25 ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
28 ut_asserteq_str(name, bus->name);
30 /* Check that it has some devices */
31 ut_asserteq(device_has_children(bus), true);
33 ut_assertok(device_find_first_child(bus, &dev));
35 /* There should be at least one child */
36 ut_assertnonnull(dev);
38 /* Check that only PMICs are connected to the bus */
40 ut_asserteq(device_get_uclass_id(dev), UCLASS_PMIC);
41 device_find_next_child(&dev);
46 DM_TEST(dm_test_spmi_probe, DM_TESTF_SCAN_FDT);
48 /* Test if it's possible to read bus directly and indirectly */
49 static int dm_test_spmi_access(struct unit_test_state *uts)
51 const char *pmic_name = "pm8916@0";
52 struct udevice *bus, *pmic;
54 ut_assertok(uclass_get_device(UCLASS_SPMI, 0, &bus));
56 ut_assertok(device_get_child(bus, 0, &pmic));
58 /* Sanity check if it's proper PMIC */
59 ut_asserteq_str(pmic_name, pmic->name);
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);
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);
71 DM_TEST(dm_test_spmi_access, DM_TESTF_SCAN_FDT);
74 /* Test if it's possible to access GPIO that should be in pmic */
75 static int dm_test_spmi_access_peripheral(struct unit_test_state *uts)
78 unsigned int offset, gpio;
82 /* Get second pin of PMIC GPIO */
83 ut_assertok(gpio_lookup_name("spmi1", &dev, &offset, &gpio));
85 /* Check if PMIC is parent */
86 ut_asserteq(device_get_uclass_id(dev->parent), UCLASS_PMIC);
88 /* This should be second gpio */
89 ut_asserteq(1, offset);
91 name = gpio_get_bank_info(dev, &offset_count);
94 ut_asserteq_str("spmi", name);
96 ut_asserteq(4, offset_count);
98 ut_assertok(gpio_request(gpio, "testing"));
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);
108 ut_assertok(gpio_free(gpio));
112 DM_TEST(dm_test_spmi_access_peripheral, DM_TESTF_SCAN_FDT);