1 /* 2 * Copyright 2012 Nouveau community 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Martin Peres 23 */ 24 #include "priv.h" 25 26 #include <subdev/bios/extdev.h> 27 #include <subdev/i2c.h> 28 29 static bool 30 probe_monitoring_device(struct nvkm_i2c_bus *bus, 31 struct i2c_board_info *info, void *data) 32 { 33 struct nvkm_therm *therm = data; 34 struct nvbios_therm_sensor *sensor = &therm->bios_sensor; 35 struct i2c_client *client; 36 37 request_module("%s%s", I2C_MODULE_PREFIX, info->type); 38 39 client = i2c_new_device(&bus->i2c, info); 40 if (!client) 41 return false; 42 43 if (!client->dev.driver || 44 to_i2c_driver(client->dev.driver)->detect(client, info)) { 45 i2c_unregister_device(client); 46 return false; 47 } 48 49 nvkm_debug(&therm->subdev, 50 "Found an %s at address 0x%x (controlled by lm_sensors, " 51 "temp offset %+i C)\n", 52 info->type, info->addr, sensor->offset_constant); 53 therm->ic = client; 54 return true; 55 } 56 57 static struct nvkm_i2c_bus_probe 58 nv_board_infos[] = { 59 { { I2C_BOARD_INFO("w83l785ts", 0x2d) }, 0 }, 60 { { I2C_BOARD_INFO("w83781d", 0x2d) }, 0 }, 61 { { I2C_BOARD_INFO("adt7473", 0x2e) }, 40 }, 62 { { I2C_BOARD_INFO("adt7473", 0x2d) }, 40 }, 63 { { I2C_BOARD_INFO("adt7473", 0x2c) }, 40 }, 64 { { I2C_BOARD_INFO("f75375", 0x2e) }, 0 }, 65 { { I2C_BOARD_INFO("lm99", 0x4c) }, 0 }, 66 { { I2C_BOARD_INFO("lm90", 0x4c) }, 0 }, 67 { { I2C_BOARD_INFO("lm90", 0x4d) }, 0 }, 68 { { I2C_BOARD_INFO("adm1021", 0x18) }, 0 }, 69 { { I2C_BOARD_INFO("adm1021", 0x19) }, 0 }, 70 { { I2C_BOARD_INFO("adm1021", 0x1a) }, 0 }, 71 { { I2C_BOARD_INFO("adm1021", 0x29) }, 0 }, 72 { { I2C_BOARD_INFO("adm1021", 0x2a) }, 0 }, 73 { { I2C_BOARD_INFO("adm1021", 0x2b) }, 0 }, 74 { { I2C_BOARD_INFO("adm1021", 0x4c) }, 0 }, 75 { { I2C_BOARD_INFO("adm1021", 0x4d) }, 0 }, 76 { { I2C_BOARD_INFO("adm1021", 0x4e) }, 0 }, 77 { { I2C_BOARD_INFO("lm63", 0x18) }, 0 }, 78 { { I2C_BOARD_INFO("lm63", 0x4e) }, 0 }, 79 { } 80 }; 81 82 void 83 nvkm_therm_ic_ctor(struct nvkm_therm *therm) 84 { 85 struct nvkm_device *device = therm->subdev.device; 86 struct nvkm_bios *bios = device->bios; 87 struct nvkm_i2c *i2c = device->i2c; 88 struct nvkm_i2c_bus *bus; 89 struct nvbios_extdev_func extdev_entry; 90 91 bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_PRI); 92 if (!bus) 93 return; 94 95 if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_LM89, &extdev_entry)) { 96 struct nvkm_i2c_bus_probe board[] = { 97 { { I2C_BOARD_INFO("lm90", extdev_entry.addr >> 1) }, 0}, 98 { } 99 }; 100 101 nvkm_i2c_bus_probe(bus, "monitoring device", board, 102 probe_monitoring_device, therm); 103 if (therm->ic) 104 return; 105 } 106 107 if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_ADT7473, &extdev_entry)) { 108 struct nvkm_i2c_bus_probe board[] = { 109 { { I2C_BOARD_INFO("adt7473", extdev_entry.addr >> 1) }, 20 }, 110 { } 111 }; 112 113 nvkm_i2c_bus_probe(bus, "monitoring device", board, 114 probe_monitoring_device, therm); 115 if (therm->ic) 116 return; 117 } 118 119 if (nvbios_extdev_skip_probe(bios)) 120 return; 121 122 /* The vbios doesn't provide the address of an exisiting monitoring 123 device. Let's try our static list. 124 */ 125 nvkm_i2c_bus_probe(bus, "monitoring device", nv_board_infos, 126 probe_monitoring_device, therm); 127 } 128