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