tree: https://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git for-4.10/i2c-hid head: de3c99488609284e454cf2b4420a789038a4cfa8 commit: ead0687fe304a66a24e3d809d1070684f3abee71 [6/7] HID: i2c-hid: support regulator power on/off config: x86_64-randconfig-x015-201649 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout ead0687fe304a66a24e3d809d1070684f3abee71 # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): drivers/hid/i2c-hid/i2c-hid.c: In function 'i2c_hid_probe': >> drivers/hid/i2c-hid/i2c-hid.c:1048:23: error: implicit declaration of function 'devm_regulator_get' [-Werror=implicit-function-declaration] ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd"); ^~~~~~~~~~~~~~~~~~ >> drivers/hid/i2c-hid/i2c-hid.c:1048:21: warning: assignment makes pointer from integer without a cast [-Wint-conversion] ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd"); ^ >> drivers/hid/i2c-hid/i2c-hid.c:1057:8: error: implicit declaration of function 'regulator_enable' [-Werror=implicit-function-declaration] ret = regulator_enable(ihid->pdata.supply); ^~~~~~~~~~~~~~~~ >> drivers/hid/i2c-hid/i2c-hid.c:1139:2: error: implicit declaration of function 'regulator_disable' [-Werror=implicit-function-declaration] regulator_disable(ihid->pdata.supply); ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/devm_regulator_get +1048 drivers/hid/i2c-hid/i2c-hid.c 1042 goto err; 1043 } 1044 } else { 1045 ihid->pdata = *platform_data; 1046 } 1047 > 1048 ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd"); 1049 if (IS_ERR(ihid->pdata.supply)) { 1050 ret = PTR_ERR(ihid->pdata.supply); 1051 if (ret != -EPROBE_DEFER) 1052 dev_err(&client->dev, "Failed to get regulator: %d\n", 1053 ret); 1054 return ret; 1055 } 1056 > 1057 ret = regulator_enable(ihid->pdata.supply); 1058 if (ret < 0) { 1059 dev_err(&client->dev, "Failed to enable regulator: %d\n", 1060 ret); 1061 goto err; 1062 } 1063 if (ihid->pdata.init_delay_ms) 1064 msleep(ihid->pdata.init_delay_ms); 1065 1066 i2c_set_clientdata(client, ihid); 1067 1068 ihid->client = client; 1069 1070 hidRegister = ihid->pdata.hid_descriptor_address; 1071 ihid->wHIDDescRegister = cpu_to_le16(hidRegister); 1072 1073 init_waitqueue_head(&ihid->wait); 1074 mutex_init(&ihid->reset_lock); 1075 1076 /* we need to allocate the command buffer without knowing the maximum 1077 * size of the reports. Let's use HID_MIN_BUFFER_SIZE, then we do the 1078 * real computation later. */ 1079 ret = i2c_hid_alloc_buffers(ihid, HID_MIN_BUFFER_SIZE); 1080 if (ret < 0) 1081 goto err_regulator; 1082 1083 pm_runtime_get_noresume(&client->dev); 1084 pm_runtime_set_active(&client->dev); 1085 pm_runtime_enable(&client->dev); 1086 device_enable_async_suspend(&client->dev); 1087 1088 ret = i2c_hid_fetch_hid_descriptor(ihid); 1089 if (ret < 0) 1090 goto err_pm; 1091 1092 ret = i2c_hid_init_irq(client); 1093 if (ret < 0) 1094 goto err_pm; 1095 1096 hid = hid_allocate_device(); 1097 if (IS_ERR(hid)) { 1098 ret = PTR_ERR(hid); 1099 goto err_irq; 1100 } 1101 1102 ihid->hid = hid; 1103 1104 hid->driver_data = client; 1105 hid->ll_driver = &i2c_hid_ll_driver; 1106 hid->dev.parent = &client->dev; 1107 hid->bus = BUS_I2C; 1108 hid->version = le16_to_cpu(ihid->hdesc.bcdVersion); 1109 hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID); 1110 hid->product = le16_to_cpu(ihid->hdesc.wProductID); 1111 1112 snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX", 1113 client->name, hid->vendor, hid->product); 1114 strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys)); 1115 1116 ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product); 1117 1118 ret = hid_add_device(hid); 1119 if (ret) { 1120 if (ret != -ENODEV) 1121 hid_err(client, "can't add hid device: %d\n", ret); 1122 goto err_mem_free; 1123 } 1124 1125 pm_runtime_put(&client->dev); 1126 return 0; 1127 1128 err_mem_free: 1129 hid_destroy_device(hid); 1130 1131 err_irq: 1132 free_irq(client->irq, ihid); 1133 1134 err_pm: 1135 pm_runtime_put_noidle(&client->dev); 1136 pm_runtime_disable(&client->dev); 1137 1138 err_regulator: > 1139 regulator_disable(ihid->pdata.supply); 1140 1141 err: 1142 i2c_hid_free_buffers(ihid); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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