11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lm87.c 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2000 Frodo Looijaard <frodol@dds.nl> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Philip Edelbrock <phil@netroedge.com> 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Stephen Rousset <stephen.rousset@rocketlogix.com> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Dan Eaton <dan.eaton@rocketlogix.com> 87c81c60f3789a082e141d7a013392af5f78db16aJean Delvare * Copyright (C) 2004-2008 Jean Delvare <jdelvare@suse.de> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Original port to Linux 2.6 by Jeff Oliver. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 is a sensor chip made by National Semiconductor. It monitors up 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 8 voltages (including its own power source), up to three temperatures 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (its own plus up to two external ones) and up to two fans. The default 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * configuration is 6 voltages, two temperatures and two fans (see below). 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Voltages are scaled internally with ratios such that the nominal value of 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * each voltage correspond to a register value of 192 (which means a 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * resolution of about 0.5% of the nominal value). Temperature values are 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * reported with a 1 deg resolution and a 3-4 deg accuracy. Complete 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * datasheet can be obtained from National's website at: 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * http://www.national.com/pf/LM/LM87.html 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Some functions share pins, so not all functions are available at the same 2447064d645bc55863c7887a7c96cde39c9a37ee5fBen Hutchings * time. Which are depends on the hardware setup. This driver normally 2547064d645bc55863c7887a7c96cde39c9a37ee5fBen Hutchings * assumes that firmware configured the chip correctly. Where this is not 2647064d645bc55863c7887a7c96cde39c9a37ee5fBen Hutchings * the case, platform code must set the I2C client's platform_data to point 2747064d645bc55863c7887a7c96cde39c9a37ee5fBen Hutchings * to a u8 value to be written to the channel register. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For reference, here is the list of exclusive functions: 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - in0+in5 (default) or temp3 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - fan1 (default) or in6 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - fan2 (default) or in7 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - VID lines (default) or IRQ lines (not handled by this driver) 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 additionally features an analog output, supposedly usable to 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * control the speed of a fan. All new chips use pulse width modulation 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * instead. The LM87 is the only hardware monitoring chipset I know of 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which uses amplitude modulation. Be careful when using this feature. 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 39c7fa373796ea685874ca9525eeb3d0d0951e511bJean Delvare * This driver also supports the ADM1024, a sensor chip made by Analog 40c7fa373796ea685874ca9525eeb3d0d0951e511bJean Delvare * Devices. That chip is fully compatible with the LM87. Complete 41c7fa373796ea685874ca9525eeb3d0d0951e511bJean Delvare * datasheet can be obtained from Analog's website at: 42c7fa373796ea685874ca9525eeb3d0d0951e511bJean Delvare * http://www.analog.com/en/prod/0,2877,ADM1024,00.html 43c7fa373796ea685874ca9525eeb3d0d0951e511bJean Delvare * 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/jiffies.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/i2c.h> 64943b0830cebe4711354945ed3cb44e84152aaca0Mark M. Hoffman#include <linux/hwmon.h> 65c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare#include <linux/hwmon-sysfs.h> 66303760b44a7a142cb9f4c9df4609fb63bbda98dbJean Delvare#include <linux/hwmon-vid.h> 67943b0830cebe4711354945ed3cb44e84152aaca0Mark M. Hoffman#include <linux/err.h> 689a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar#include <linux/mutex.h> 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Addresses to scan 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * LM87 has three possible addresses: 0x2c, 0x2d and 0x2e. 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7525e9c86d5a6d82ea45eb680fc66bf73ac5e50dffMark M. Hoffmanstatic const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 77e5e9f44c246fbafe723e579e9fe887677beb40e4Jean Delvareenum chips { lm87, adm1024 }; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 registers 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..5 */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_IN(nr) (0x20 + (nr)) 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_IN_MAX(nr) (0x2B + (nr) * 2) 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_IN_MIN(nr) (0x2C + (nr) * 2) 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..1 */ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AIN(nr) (0x28 + (nr)) 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AIN_MIN(nr) (0x1A + (nr)) 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AIN_MAX(nr) (0x3B + (nr)) 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u8 LM87_REG_TEMP[3] = { 0x27, 0x26, 0x20 }; 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u8 LM87_REG_TEMP_HIGH[3] = { 0x39, 0x37, 0x2B }; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C }; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_INT_LOCK 0x13 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_EXT_LOCK 0x14 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_INT 0x17 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_EXT 0x18 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..1 */ 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_FAN(nr) (0x28 + (nr)) 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_FAN_MIN(nr) (0x3B + (nr)) 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AOUT 0x19 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_CONFIG 0x40 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_CHANNEL_MODE 0x16 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_VID_FAN_DIV 0x47 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_VID4 0x49 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_ALARMS1 0x41 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_ALARMS2 0x42 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_COMPANY_ID 0x3E 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_REVISION 0x3F 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Conversions and various macros 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 uses signed 8-bit values for temperatures. 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 122c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck#define IN_FROM_REG(reg, scale) (((reg) * (scale) + 96) / 192) 123c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck#define IN_TO_REG(val, scale) ((val) <= 0 ? 0 : \ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (val) * 192 >= (scale) * 255 ? 255 : \ 125c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck ((val) * 192 + (scale) / 2) / (scale)) 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TEMP_FROM_REG(reg) ((reg) * 1000) 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (val) >= 126500 ? 127 : \ 130c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck (((val) < 0 ? (val) - 500 : \ 131c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck (val) + 500) / 1000)) 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck#define FAN_FROM_REG(reg, div) ((reg) == 255 || (reg) == 0 ? 0 : \ 134c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck (1350000 + (reg)*(div) / 2) / ((reg) * (div))) 135c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck#define FAN_TO_REG(val, div) ((val) * (div) * 255 <= 1350000 ? 255 : \ 136c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck (1350000 + (val)*(div) / 2) / ((val) * (div))) 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FAN_DIV_FROM_REG(reg) (1 << (reg)) 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* analog out is 9.80mV/LSB */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AOUT_FROM_REG(reg) (((reg) * 98 + 5) / 10) 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AOUT_TO_REG(val) ((val) <= 0 ? 0 : \ 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (val) >= 2500 ? 255 : \ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((val) * 10 + 49) / 98) 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..1 */ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_NO_FAN(nr) (1 << (nr)) 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_TEMP3 (1 << 2) 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_VCC_5V (1 << 3) 150889af3d5d9586db795a06c619e416b4baee11da8Jean Delvare#define CHAN_NO_VID (1 << 7) 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Client data (each client gets its own) 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct lm87_data { 1571beeffe43311f64df8dd0ab08ff6b1858c58363fTony Jones struct device *hwmon_dev; 1589a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar struct mutex update_lock; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char valid; /* zero until following fields are valid */ 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long last_updated; /* In jiffies */ 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 channel; /* register value */ 163d2cac802feae6f0c246a9251eefc482bf5ec0f0fBen Hutchings u8 config; /* original register value */ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 in[8]; /* register value */ 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 in_max[8]; /* register value */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 in_min[8]; /* register value */ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 in_scale[8]; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp[3]; /* register value */ 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_high[3]; /* register value */ 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_low[3]; /* register value */ 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_crit_int; /* min of two register values */ 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_crit_ext; /* min of two register values */ 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 fan[2]; /* register value */ 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 fan_min[2]; /* register value */ 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 fan_div[2]; /* register value, shifted right */ 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 aout; /* register value */ 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 alarms; /* register values, combined */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 vid; /* register values, combined */ 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 vrm; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int lm87_read_value(struct i2c_client *client, u8 reg) 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i2c_smbus_read_byte_data(client, reg); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int lm87_write_value(struct i2c_client *client, u8 reg, u8 value) 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i2c_smbus_write_byte_data(client, reg, value); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1968652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvarestatic struct lm87_data *lm87_update_device(struct device *dev) 1978652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare{ 1988652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare struct i2c_client *client = to_i2c_client(dev); 1998652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare struct lm87_data *data = i2c_get_clientdata(client); 2008652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2018652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare mutex_lock(&data->update_lock); 2028652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2038652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 2048652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare int i, j; 2058652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2068652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare dev_dbg(&client->dev, "Updating data.\n"); 2078652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2088652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare i = (data->channel & CHAN_TEMP3) ? 1 : 0; 2098652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare j = (data->channel & CHAN_TEMP3) ? 5 : 6; 2108652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare for (; i < j; i++) { 2118652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->in[i] = lm87_read_value(client, 2128652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_IN(i)); 2138652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->in_min[i] = lm87_read_value(client, 2148652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_IN_MIN(i)); 2158652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->in_max[i] = lm87_read_value(client, 2168652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_IN_MAX(i)); 2178652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 2188652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2198652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare for (i = 0; i < 2; i++) { 2208652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare if (data->channel & CHAN_NO_FAN(i)) { 2218652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->in[6+i] = lm87_read_value(client, 2228652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_AIN(i)); 2238652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->in_max[6+i] = lm87_read_value(client, 2248652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_AIN_MAX(i)); 2258652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->in_min[6+i] = lm87_read_value(client, 2268652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_AIN_MIN(i)); 2278652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2288652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } else { 2298652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->fan[i] = lm87_read_value(client, 2308652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_FAN(i)); 2318652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->fan_min[i] = lm87_read_value(client, 2328652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_FAN_MIN(i)); 2338652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 2348652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 2358652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2368652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare j = (data->channel & CHAN_TEMP3) ? 3 : 2; 2378652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare for (i = 0 ; i < j; i++) { 2388652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->temp[i] = lm87_read_value(client, 2398652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_TEMP[i]); 2408652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->temp_high[i] = lm87_read_value(client, 2418652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_TEMP_HIGH[i]); 2428652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->temp_low[i] = lm87_read_value(client, 2438652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_TEMP_LOW[i]); 2448652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 2458652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2468652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare i = lm87_read_value(client, LM87_REG_TEMP_HW_INT_LOCK); 2478652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare j = lm87_read_value(client, LM87_REG_TEMP_HW_INT); 2488652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->temp_crit_int = min(i, j); 2498652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2508652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare i = lm87_read_value(client, LM87_REG_TEMP_HW_EXT_LOCK); 2518652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare j = lm87_read_value(client, LM87_REG_TEMP_HW_EXT); 2528652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->temp_crit_ext = min(i, j); 2538652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2548652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare i = lm87_read_value(client, LM87_REG_VID_FAN_DIV); 2558652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->fan_div[0] = (i >> 4) & 0x03; 2568652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->fan_div[1] = (i >> 6) & 0x03; 2578652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->vid = (i & 0x0F) 2588652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare | (lm87_read_value(client, LM87_REG_VID4) & 0x01) 2598652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare << 4; 2608652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2618652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->alarms = lm87_read_value(client, LM87_REG_ALARMS1) 2628652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare | (lm87_read_value(client, LM87_REG_ALARMS2) 2638652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare << 8); 2648652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->aout = lm87_read_value(client, LM87_REG_AOUT); 2658652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2668652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->last_updated = jiffies; 2678652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->valid = 1; 2688652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 2698652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2708652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare mutex_unlock(&data->update_lock); 2718652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2728652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare return data; 2738652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare} 2748652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2758652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare/* 2768652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare * Sysfs stuff 2778652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare */ 2788652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 2790e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_in_input(struct device *dev, struct device_attribute *attr, 2800e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare char *buf) 2810e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 2820e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 2830e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 2840e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 2850e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%u\n", IN_FROM_REG(data->in[nr], 2860e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare data->in_scale[nr])); 2870e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 2880e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 2890e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_in_min(struct device *dev, 2900e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 2910e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 2920e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 2930e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 2940e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 2950e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[nr], 2960e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare data->in_scale[nr])); 2970e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 2980e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 2990e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_in_max(struct device *dev, 3000e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 3010e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 3020e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 3030e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 3040e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3050e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[nr], 3060e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare data->in_scale[nr])); 3070e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 3080e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3090e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 3100e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare const char *buf, size_t count) 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 3140e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 315c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 316c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 317c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 318c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 319c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 320c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3229a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_min[nr] = IN_TO_REG(val, data->in_scale[nr]); 324c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck lm87_write_value(client, nr < 6 ? LM87_REG_IN_MIN(nr) : 325c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck LM87_REG_AIN_MIN(nr - 6), data->in_min[nr]); 3269a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 327c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return count; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3300e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 3310e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare const char *buf, size_t count) 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 3350e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 336c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 337c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 338c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 339c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 340c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 341c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3439a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_max[nr] = IN_TO_REG(val, data->in_scale[nr]); 345c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck lm87_write_value(client, nr < 6 ? LM87_REG_IN_MAX(nr) : 346c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck LM87_REG_AIN_MAX(nr - 6), data->in_max[nr]); 3479a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 348c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return count; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define set_in(offset) \ 3520e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ 3530e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_in_input, NULL, offset); \ 3540e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 3550e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_in_min, set_in_min, offset); \ 3560e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 3570e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_in_max, set_in_max, offset) 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(0); 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(1); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(2); 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(3); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(4); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(5); 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(6); 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(7); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3670e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_temp_input(struct device *dev, 3680e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 3690e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 3700e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 3710e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 3720e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3730e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 3740e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 3750e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3760e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_temp_low(struct device *dev, 3770e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 3780e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 3790e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 3800e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 3810e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3820e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%d\n", 3830e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare TEMP_FROM_REG(data->temp_low[nr])); 3840e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 3850e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3860e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_temp_high(struct device *dev, 3870e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 3880e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 3890e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 3900e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 3910e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3920e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%d\n", 3930e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare TEMP_FROM_REG(data->temp_high[nr])); 3940e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 3950e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 3960e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t set_temp_low(struct device *dev, struct device_attribute *attr, 3970e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare const char *buf, size_t count) 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 4010e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 402c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 403c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 404c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 405c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 406c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 407c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4099a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_low[nr] = TEMP_TO_REG(val); 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_LOW[nr], data->temp_low[nr]); 4129a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 413c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return count; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4160e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t set_temp_high(struct device *dev, struct device_attribute *attr, 4170e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare const char *buf, size_t count) 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 4210e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 422c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 423c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 424c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 425c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 426c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 427c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4299a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_high[nr] = TEMP_TO_REG(val); 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_HIGH[nr], data->temp_high[nr]); 4329a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 433c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return count; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define set_temp(offset) \ 4370e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ 4380e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_temp_input, NULL, offset - 1); \ 4390e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 4400e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_temp_high, set_temp_high, offset - 1); \ 4410e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 4420e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_temp_low, set_temp_low, offset - 1) 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_temp(1); 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_temp(2); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_temp(3); 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 447c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t show_temp_crit_int(struct device *dev, 448c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck struct device_attribute *attr, char *buf) 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_int)); 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 454c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t show_temp_crit_ext(struct device *dev, 455c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck struct device_attribute *attr, char *buf) 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_ext)); 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit_int, NULL); 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit_ext, NULL); 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit_ext, NULL); 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4650e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_fan_input(struct device *dev, 4660e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 4670e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 4680e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 4690e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 4700e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 4710e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 4720e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare FAN_DIV_FROM_REG(data->fan_div[nr]))); 4730e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 4740e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 4750e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_fan_min(struct device *dev, 4760e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 4770e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 4780e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 4790e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 4800e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 4810e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 4820e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare FAN_DIV_FROM_REG(data->fan_div[nr]))); 4830e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 4840e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 4850e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t show_fan_div(struct device *dev, 4860e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct device_attribute *attr, char *buf) 4870e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare{ 4880e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare struct lm87_data *data = lm87_update_device(dev); 4890e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 4900e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 4910e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare return sprintf(buf, "%d\n", 4920e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare FAN_DIV_FROM_REG(data->fan_div[nr])); 4930e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare} 4940e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare 4950e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 4960e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare const char *buf, size_t count) 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 5000e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 501c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 502c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 503c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 504c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 505c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 506c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5089a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[nr] = FAN_TO_REG(val, 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FAN_DIV_FROM_REG(data->fan_div[nr])); 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_FAN_MIN(nr), data->fan_min[nr]); 5129a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 513c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return count; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 516c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck/* 517c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck * Note: we save and restore the fan minimum here, because its value is 518c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck * determined in part by the fan clock divider. This follows the principle 519c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck * of least surprise; the user doesn't expect the fan minimum to change just 520c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck * because the divider changed. 521c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck */ 5220e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 5230e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare const char *buf, size_t count) 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 5270e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare int nr = to_sensor_dev_attr(attr)->index; 528c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 529c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long min; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 reg; 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 533c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 534c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 535c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 536c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 5379a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds min = FAN_FROM_REG(data->fan_min[nr], 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FAN_DIV_FROM_REG(data->fan_div[nr])); 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (val) { 542c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck case 1: 543c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck data->fan_div[nr] = 0; 544c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck break; 545c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck case 2: 546c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck data->fan_div[nr] = 1; 547c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck break; 548c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck case 4: 549c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck data->fan_div[nr] = 2; 550c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck break; 551c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck case 8: 552c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck data->fan_div[nr] = 3; 553c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck break; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 5559a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds reg = lm87_read_value(client, LM87_REG_VID_FAN_DIV); 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (nr) { 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds reg = (reg & 0xCF) | (data->fan_div[0] << 4); 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds reg = (reg & 0x3F) | (data->fan_div[1] << 6); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_VID_FAN_DIV, reg); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[nr] = FAN_TO_REG(min, val); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_FAN_MIN(nr), 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[nr]); 5739a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define set_fan(offset) \ 5790e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ 5800e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_fan_input, NULL, offset - 1); \ 5810e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 5820e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_fan_min, set_fan_min, offset - 1); \ 5830e190b7fa330f19afed9e12d551432b8659886c7Jean Delvarestatic SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 5840e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare show_fan_div, set_fan_div, offset - 1) 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_fan(1); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_fan(2); 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 588c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t show_alarms(struct device *dev, struct device_attribute *attr, 589c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck char *buf) 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", data->alarms); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 596c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t show_vid(struct device *dev, struct device_attribute *attr, 597c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck char *buf) 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 604c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t show_vrm(struct device *dev, struct device_attribute *attr, 605c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck char *buf) 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 60790d6619a916062cb75a176aacb318d108758b4a5Jean Delvare struct lm87_data *data = dev_get_drvdata(dev); 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", data->vrm); 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 610c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t set_vrm(struct device *dev, struct device_attribute *attr, 611c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck const char *buf, size_t count) 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6138f74efe81d122c071410fd74f42879ef81439fa4Jean Delvare struct lm87_data *data = dev_get_drvdata(dev); 614c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck unsigned long val; 615c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 616c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 617c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtoul(buf, 10, &val); 618c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 619c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 620fa642d9d6e502fbdbd1122a6a247c8ad17063a29Axel Lin 621fa642d9d6e502fbdbd1122a6a247c8ad17063a29Axel Lin if (val > 255) 622fa642d9d6e502fbdbd1122a6a247c8ad17063a29Axel Lin return -EINVAL; 623fa642d9d6e502fbdbd1122a6a247c8ad17063a29Axel Lin 624c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck data->vrm = val; 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 629c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t show_aout(struct device *dev, struct device_attribute *attr, 630c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck char *buf) 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout)); 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 635c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeckstatic ssize_t set_aout(struct device *dev, struct device_attribute *attr, 636c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck const char *buf, size_t count) 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 640c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck long val; 641c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck int err; 642c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck 643c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck err = kstrtol(buf, 10, &val); 644c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 645c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck return err; 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6479a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_lock(&data->update_lock); 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->aout = AOUT_TO_REG(val); 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_AOUT, data->aout); 6509a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_unlock(&data->update_lock); 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout); 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 655c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 656c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare char *buf) 657c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare{ 658c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare struct lm87_data *data = lm87_update_device(dev); 659c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare int bitnr = to_sensor_dev_attr(attr)->index; 660c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); 661c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare} 662c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 663c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 664c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); 665c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); 666c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); 667c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9); 668c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6); 669c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7); 670c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); 671c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); 672c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 5); 673c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); 674c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); 675c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 14); 676c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvarestatic SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); 677c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Real code 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6820501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffmanstatic struct attribute *lm87_attributes[] = { 6830e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in1_input.dev_attr.attr, 6840e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in1_min.dev_attr.attr, 6850e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in1_max.dev_attr.attr, 686c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in1_alarm.dev_attr.attr, 6870e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in2_input.dev_attr.attr, 6880e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in2_min.dev_attr.attr, 6890e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in2_max.dev_attr.attr, 690c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in2_alarm.dev_attr.attr, 6910e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in3_input.dev_attr.attr, 6920e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in3_min.dev_attr.attr, 6930e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in3_max.dev_attr.attr, 694c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in3_alarm.dev_attr.attr, 6950e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in4_input.dev_attr.attr, 6960e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in4_min.dev_attr.attr, 6970e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in4_max.dev_attr.attr, 698c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in4_alarm.dev_attr.attr, 6990501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 7000e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp1_input.dev_attr.attr, 7010e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp1_max.dev_attr.attr, 7020e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp1_min.dev_attr.attr, 7030501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_temp1_crit.attr, 704c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_temp1_alarm.dev_attr.attr, 7050e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp2_input.dev_attr.attr, 7060e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp2_max.dev_attr.attr, 7070e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp2_min.dev_attr.attr, 7080501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_temp2_crit.attr, 709c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_temp2_alarm.dev_attr.attr, 710c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_temp2_fault.dev_attr.attr, 7110501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 7120501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_alarms.attr, 7130501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_aout_output.attr, 7140501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 7150501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman NULL 7160501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman}; 7170501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 7180501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffmanstatic const struct attribute_group lm87_group = { 7190501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman .attrs = lm87_attributes, 7200501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman}; 7210501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 722073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_in6[] = { 7230e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in6_input.dev_attr.attr, 7240e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in6_min.dev_attr.attr, 7250e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in6_max.dev_attr.attr, 726c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in6_alarm.dev_attr.attr, 727073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck NULL 728073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 729073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 730073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_in6 = { 731073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_in6, 732073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 7330501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 734073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_fan1[] = { 7350e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_fan1_input.dev_attr.attr, 7360e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_fan1_min.dev_attr.attr, 7370e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_fan1_div.dev_attr.attr, 738c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_fan1_alarm.dev_attr.attr, 739073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck NULL 740073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 741073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 742073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_fan1 = { 743073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_fan1, 744073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 7450501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 746073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_in7[] = { 7470e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in7_input.dev_attr.attr, 7480e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in7_min.dev_attr.attr, 7490e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in7_max.dev_attr.attr, 750c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in7_alarm.dev_attr.attr, 751073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck NULL 752073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 7530501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 754073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_in7 = { 755073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_in7, 756073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 757073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 758073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_fan2[] = { 7590e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_fan2_input.dev_attr.attr, 7600e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_fan2_min.dev_attr.attr, 7610e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_fan2_div.dev_attr.attr, 762c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_fan2_alarm.dev_attr.attr, 763073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck NULL 764073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 7650501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 766073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_fan2 = { 767073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_fan2, 768073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 769073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 770073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_temp3[] = { 7710e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp3_input.dev_attr.attr, 7720e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp3_max.dev_attr.attr, 7730e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_temp3_min.dev_attr.attr, 7740501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_temp3_crit.attr, 775c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_temp3_alarm.dev_attr.attr, 776c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_temp3_fault.dev_attr.attr, 777073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck NULL 778073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 7790501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 780073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_temp3 = { 781073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_temp3, 782073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 783073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 784073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_in0_5[] = { 7850e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in0_input.dev_attr.attr, 7860e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in0_min.dev_attr.attr, 7870e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in0_max.dev_attr.attr, 788c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in0_alarm.dev_attr.attr, 7890e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in5_input.dev_attr.attr, 7900e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in5_min.dev_attr.attr, 7910e190b7fa330f19afed9e12d551432b8659886c7Jean Delvare &sensor_dev_attr_in5_max.dev_attr.attr, 792c2803b98557c10464f3a1fc65f56d0c8c01991bdJean Delvare &sensor_dev_attr_in5_alarm.dev_attr.attr, 793073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck NULL 794073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 795073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 796073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_in0_5 = { 797073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_in0_5, 798073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck}; 7990501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 800073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic struct attribute *lm87_attributes_vid[] = { 8010501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_cpu0_vid.attr, 8020501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman &dev_attr_vrm.attr, 8030501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman NULL 8040501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman}; 8050501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 806073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic const struct attribute_group lm87_group_vid = { 807073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck .attrs = lm87_attributes_vid, 8080501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman}; 8090501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 810a888420af07b9a26b6d518328baa913fb704e950Jean Delvare/* Return 0 if detection is successful, -ENODEV otherwise */ 8118652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvarestatic int lm87_detect(struct i2c_client *client, struct i2c_board_info *info) 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8138652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare struct i2c_adapter *adapter = client->adapter; 81452df6440a29123eed912183fe785bbe174ef14b9Jean Delvare const char *name; 81552df6440a29123eed912183fe785bbe174ef14b9Jean Delvare u8 cid, rev; 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 818a888420af07b9a26b6d518328baa913fb704e950Jean Delvare return -ENODEV; 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8208652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare if (lm87_read_value(client, LM87_REG_CONFIG) & 0x80) 82152df6440a29123eed912183fe785bbe174ef14b9Jean Delvare return -ENODEV; 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Now, we do the remaining detection. */ 8248652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare cid = lm87_read_value(client, LM87_REG_COMPANY_ID); 8258652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare rev = lm87_read_value(client, LM87_REG_REVISION); 82652df6440a29123eed912183fe785bbe174ef14b9Jean Delvare 82752df6440a29123eed912183fe785bbe174ef14b9Jean Delvare if (cid == 0x02 /* National Semiconductor */ 82852df6440a29123eed912183fe785bbe174ef14b9Jean Delvare && (rev >= 0x01 && rev <= 0x08)) 82952df6440a29123eed912183fe785bbe174ef14b9Jean Delvare name = "lm87"; 83052df6440a29123eed912183fe785bbe174ef14b9Jean Delvare else if (cid == 0x41 /* Analog Devices */ 83152df6440a29123eed912183fe785bbe174ef14b9Jean Delvare && (rev & 0xf0) == 0x10) 83252df6440a29123eed912183fe785bbe174ef14b9Jean Delvare name = "adm1024"; 83352df6440a29123eed912183fe785bbe174ef14b9Jean Delvare else { 83452df6440a29123eed912183fe785bbe174ef14b9Jean Delvare dev_dbg(&adapter->dev, "LM87 detection failed at 0x%02x\n", 8358652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare client->addr); 83652df6440a29123eed912183fe785bbe174ef14b9Jean Delvare return -ENODEV; 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 83952df6440a29123eed912183fe785bbe174ef14b9Jean Delvare strlcpy(info->type, name, I2C_NAME_SIZE); 840a888420af07b9a26b6d518328baa913fb704e950Jean Delvare 841a888420af07b9a26b6d518328baa913fb704e950Jean Delvare return 0; 842a888420af07b9a26b6d518328baa913fb704e950Jean Delvare} 843a888420af07b9a26b6d518328baa913fb704e950Jean Delvare 844073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeckstatic void lm87_remove_files(struct i2c_client *client) 845073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck{ 846073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck struct device *dev = &client->dev; 847073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 848073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group); 849073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_in6); 850073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_fan1); 851073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_in7); 852073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_fan2); 853073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_temp3); 854073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_in0_5); 855073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck sysfs_remove_group(&dev->kobj, &lm87_group_vid); 856073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck} 857073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck 8588652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvarestatic void lm87_init_client(struct i2c_client *client) 8598652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare{ 8608652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare struct lm87_data *data = i2c_get_clientdata(client); 8618652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 862a8b3a3a53f9a814e9938ea9cc179086ff5c0a387Jingoo Han if (dev_get_platdata(&client->dev)) { 863a8b3a3a53f9a814e9938ea9cc179086ff5c0a387Jingoo Han data->channel = *(u8 *)dev_get_platdata(&client->dev); 8648652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, 8658652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare LM87_REG_CHANNEL_MODE, data->channel); 8668652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } else { 8678652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->channel = lm87_read_value(client, LM87_REG_CHANNEL_MODE); 8688652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 8698652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->config = lm87_read_value(client, LM87_REG_CONFIG) & 0x6F; 8708652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 8718652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare if (!(data->config & 0x01)) { 8728652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare int i; 8738652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 8748652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare /* Limits are left uninitialized after power-up */ 8758652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare for (i = 1; i < 6; i++) { 8768652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_IN_MIN(i), 0x00); 8778652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_IN_MAX(i), 0xFF); 8788652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 8798652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare for (i = 0; i < 2; i++) { 8808652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_TEMP_HIGH[i], 0x7F); 8818652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_TEMP_LOW[i], 0x00); 8828652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_AIN_MIN(i), 0x00); 8838652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_AIN_MAX(i), 0xFF); 8848652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 8858652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare if (data->channel & CHAN_TEMP3) { 8868652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_TEMP_HIGH[2], 0x7F); 8878652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_TEMP_LOW[2], 0x00); 8888652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } else { 8898652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_IN_MIN(0), 0x00); 8908652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_IN_MAX(0), 0xFF); 8918652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 8928652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare } 8938652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 8948652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare /* Make sure Start is set and INT#_Clear is clear */ 8958652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare if ((data->config & 0x09) != 0x01) 8968652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_CONFIG, 8978652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare (data->config & 0x77) | 0x01); 8988652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare} 8998652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare 9008652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvarestatic int lm87_probe(struct i2c_client *client, const struct i2c_device_id *id) 901a888420af07b9a26b6d518328baa913fb704e950Jean Delvare{ 902a888420af07b9a26b6d518328baa913fb704e950Jean Delvare struct lm87_data *data; 903a888420af07b9a26b6d518328baa913fb704e950Jean Delvare int err; 904a888420af07b9a26b6d518328baa913fb704e950Jean Delvare 9055ff512b458ba7948d22dab0771233cf9b2da0793Guenter Roeck data = devm_kzalloc(&client->dev, sizeof(struct lm87_data), GFP_KERNEL); 9065ff512b458ba7948d22dab0771233cf9b2da0793Guenter Roeck if (!data) 9075ff512b458ba7948d22dab0771233cf9b2da0793Guenter Roeck return -ENOMEM; 908a888420af07b9a26b6d518328baa913fb704e950Jean Delvare 9098652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare i2c_set_clientdata(client, data); 9109a61bf6300533d3b64d7ff29adfec00e596de67dIngo Molnar mutex_init(&data->update_lock); 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialize the LM87 chip */ 9138652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_init_client(client); 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[0] = 2500; 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[1] = 2700; 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[2] = (data->channel & CHAN_VCC_5V) ? 5000 : 3300; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[3] = 5000; 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[4] = 12000; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[5] = 2700; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[6] = 1875; 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[7] = 1875; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Register sysfs hooks */ 9258652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group); 926c6370dbe45278db0ebebc377c0a6143b7c488379Guenter Roeck if (err) 9275ff512b458ba7948d22dab0771233cf9b2da0793Guenter Roeck goto exit_stop; 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_NO_FAN(0)) { 9308652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_in6); 931073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9320501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9348652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_fan1); 935073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9360501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9380501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_NO_FAN(1)) { 9408652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_in7); 941073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9420501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9448652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_fan2); 945073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9460501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_TEMP3) { 9508652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_temp3); 951073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9520501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9548652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_in0_5); 955073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9560501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(data->channel & CHAN_NO_VID)) { 9608a665a0552c414af88788cc0e2cf0e4626182c20Jean Delvare data->vrm = vid_which_vrm(); 9618652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare err = sysfs_create_group(&client->dev.kobj, &lm87_group_vid); 962073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck if (err) 9630501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9668652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare data->hwmon_dev = hwmon_device_register(&client->dev); 9671beeffe43311f64df8dd0ab08ff6b1858c58363fTony Jones if (IS_ERR(data->hwmon_dev)) { 9681beeffe43311f64df8dd0ab08ff6b1858c58363fTony Jones err = PTR_ERR(data->hwmon_dev); 9690501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman goto exit_remove; 9700501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffman } 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9740501a3816e5b778830fc2157a6d6bb11a965fc2cMark M. Hoffmanexit_remove: 9758652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_remove_files(client); 9765ff512b458ba7948d22dab0771233cf9b2da0793Guenter Roeckexit_stop: 9778652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare lm87_write_value(client, LM87_REG_CONFIG, data->config); 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981a888420af07b9a26b6d518328baa913fb704e950Jean Delvarestatic int lm87_remove(struct i2c_client *client) 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 983943b0830cebe4711354945ed3cb44e84152aaca0Mark M. Hoffman struct lm87_data *data = i2c_get_clientdata(client); 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9851beeffe43311f64df8dd0ab08ff6b1858c58363fTony Jones hwmon_device_unregister(data->hwmon_dev); 986073f1e6c895f256b1d7b535a97fe0ced98ac1615Guenter Roeck lm87_remove_files(client); 987943b0830cebe4711354945ed3cb44e84152aaca0Mark M. Hoffman 988d2cac802feae6f0c246a9251eefc482bf5ec0f0fBen Hutchings lm87_write_value(client, LM87_REG_CONFIG, data->config); 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9928652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare/* 9938652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare * Driver data (common to all clients) 9948652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare */ 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9968652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvarestatic const struct i2c_device_id lm87_id[] = { 9978652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare { "lm87", lm87 }, 9988652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare { "adm1024", adm1024 }, 9998652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare { } 10008652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare}; 10018652a2642ce70074d3ef9bd2b565e62e851b0070Jean DelvareMODULE_DEVICE_TABLE(i2c, lm87_id); 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10038652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvarestatic struct i2c_driver lm87_driver = { 10048652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .class = I2C_CLASS_HWMON, 10058652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .driver = { 10068652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .name = "lm87", 10078652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare }, 10088652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .probe = lm87_probe, 10098652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .remove = lm87_remove, 10108652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .id_table = lm87_id, 10118652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .detect = lm87_detect, 10128652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare .address_list = normal_i2c, 10138652a2642ce70074d3ef9bd2b565e62e851b0070Jean Delvare}; 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1015f0967eea80ec2a19a4fe1ad27e3ff1b22c79a3c7Axel Linmodule_i2c_driver(lm87_driver); 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10177c81c60f3789a082e141d7a013392af5f78db16aJean DelvareMODULE_AUTHOR("Jean Delvare <jdelvare@suse.de> and others"); 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("LM87 driver"); 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 1020