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 <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 18 /* Test if bus childs got probed propperly*/ 19 static 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 } 45 DM_TEST(dm_test_spmi_probe, DM_TESTF_SCAN_FDT); 46 47 /* Test if it's possible to read bus directly and indirectly */ 48 static 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 } 70 DM_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 */ 74 static 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 } 111 DM_TEST(dm_test_spmi_access_peripheral, DM_TESTF_SCAN_FDT); 112