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