diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/therm/ic.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/therm/ic.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/ic.c new file mode 100644 index 000000000000..09fc4605e853 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/ic.c @@ -0,0 +1,119 @@ +/* + * Copyright 2012 Nouveau community + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Martin Peres + */ +#include "priv.h" + +#include <subdev/bios/extdev.h> +#include <subdev/i2c.h> + +static bool +probe_monitoring_device(struct nvkm_i2c_port *i2c, + struct i2c_board_info *info, void *data) +{ + struct nvkm_therm_priv *priv = data; + struct nvbios_therm_sensor *sensor = &priv->bios_sensor; + struct i2c_client *client; + + request_module("%s%s", I2C_MODULE_PREFIX, info->type); + + client = i2c_new_device(&i2c->adapter, info); + if (!client) + return false; + + if (!client->dev.driver || + to_i2c_driver(client->dev.driver)->detect(client, info)) { + i2c_unregister_device(client); + return false; + } + + nv_info(priv, + "Found an %s at address 0x%x (controlled by lm_sensors, " + "temp offset %+i C)\n", + info->type, info->addr, sensor->offset_constant); + priv->ic = client; + return true; +} + +static struct nvkm_i2c_board_info +nv_board_infos[] = { + { { I2C_BOARD_INFO("w83l785ts", 0x2d) }, 0 }, + { { I2C_BOARD_INFO("w83781d", 0x2d) }, 0 }, + { { I2C_BOARD_INFO("adt7473", 0x2e) }, 40 }, + { { I2C_BOARD_INFO("adt7473", 0x2d) }, 40 }, + { { I2C_BOARD_INFO("adt7473", 0x2c) }, 40 }, + { { I2C_BOARD_INFO("f75375", 0x2e) }, 0 }, + { { I2C_BOARD_INFO("lm99", 0x4c) }, 0 }, + { { I2C_BOARD_INFO("lm90", 0x4c) }, 0 }, + { { I2C_BOARD_INFO("lm90", 0x4d) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x18) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x19) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x1a) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x29) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x2a) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x2b) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x4c) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x4d) }, 0 }, + { { I2C_BOARD_INFO("adm1021", 0x4e) }, 0 }, + { { I2C_BOARD_INFO("lm63", 0x18) }, 0 }, + { { I2C_BOARD_INFO("lm63", 0x4e) }, 0 }, + { } +}; + +void +nvkm_therm_ic_ctor(struct nvkm_therm *therm) +{ + struct nvkm_therm_priv *priv = (void *)therm; + struct nvkm_bios *bios = nvkm_bios(therm); + struct nvkm_i2c *i2c = nvkm_i2c(therm); + struct nvbios_extdev_func extdev_entry; + + if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_LM89, &extdev_entry)) { + struct nvkm_i2c_board_info board[] = { + { { I2C_BOARD_INFO("lm90", extdev_entry.addr >> 1) }, 0}, + { } + }; + + i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device", + board, probe_monitoring_device, therm); + if (priv->ic) + return; + } + + if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_ADT7473, &extdev_entry)) { + struct nvkm_i2c_board_info board[] = { + { { I2C_BOARD_INFO("adt7473", extdev_entry.addr >> 1) }, 20 }, + { } + }; + + i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device", + board, probe_monitoring_device, therm); + if (priv->ic) + return; + } + + /* The vbios doesn't provide the address of an exisiting monitoring + device. Let's try our static list. + */ + i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device", + nv_board_infos, probe_monitoring_device, therm); +} |