18d5d45fbSJean Delvare /* 28d5d45fbSJean Delvare * lm87.c 38d5d45fbSJean Delvare * 48d5d45fbSJean Delvare * Copyright (C) 2000 Frodo Looijaard <frodol@dds.nl> 58d5d45fbSJean Delvare * Philip Edelbrock <phil@netroedge.com> 68d5d45fbSJean Delvare * Stephen Rousset <stephen.rousset@rocketlogix.com> 78d5d45fbSJean Delvare * Dan Eaton <dan.eaton@rocketlogix.com> 87c81c60fSJean Delvare * Copyright (C) 2004-2008 Jean Delvare <jdelvare@suse.de> 98d5d45fbSJean Delvare * 108d5d45fbSJean Delvare * Original port to Linux 2.6 by Jeff Oliver. 118d5d45fbSJean Delvare * 128d5d45fbSJean Delvare * The LM87 is a sensor chip made by National Semiconductor. It monitors up 138d5d45fbSJean Delvare * to 8 voltages (including its own power source), up to three temperatures 148d5d45fbSJean Delvare * (its own plus up to two external ones) and up to two fans. The default 158d5d45fbSJean Delvare * configuration is 6 voltages, two temperatures and two fans (see below). 168d5d45fbSJean Delvare * Voltages are scaled internally with ratios such that the nominal value of 178d5d45fbSJean Delvare * each voltage correspond to a register value of 192 (which means a 188d5d45fbSJean Delvare * resolution of about 0.5% of the nominal value). Temperature values are 198d5d45fbSJean Delvare * reported with a 1 deg resolution and a 3-4 deg accuracy. Complete 208d5d45fbSJean Delvare * datasheet can be obtained from National's website at: 218d5d45fbSJean Delvare * http://www.national.com/pf/LM/LM87.html 228d5d45fbSJean Delvare * 238d5d45fbSJean Delvare * Some functions share pins, so not all functions are available at the same 2447064d64SBen Hutchings * time. Which are depends on the hardware setup. This driver normally 2547064d64SBen Hutchings * assumes that firmware configured the chip correctly. Where this is not 2647064d64SBen Hutchings * the case, platform code must set the I2C client's platform_data to point 2747064d64SBen Hutchings * to a u8 value to be written to the channel register. 288d5d45fbSJean Delvare * For reference, here is the list of exclusive functions: 298d5d45fbSJean Delvare * - in0+in5 (default) or temp3 308d5d45fbSJean Delvare * - fan1 (default) or in6 318d5d45fbSJean Delvare * - fan2 (default) or in7 328d5d45fbSJean Delvare * - VID lines (default) or IRQ lines (not handled by this driver) 338d5d45fbSJean Delvare * 348d5d45fbSJean Delvare * The LM87 additionally features an analog output, supposedly usable to 358d5d45fbSJean Delvare * control the speed of a fan. All new chips use pulse width modulation 368d5d45fbSJean Delvare * instead. The LM87 is the only hardware monitoring chipset I know of 378d5d45fbSJean Delvare * which uses amplitude modulation. Be careful when using this feature. 388d5d45fbSJean Delvare * 39c7fa3737SJean Delvare * This driver also supports the ADM1024, a sensor chip made by Analog 40c7fa3737SJean Delvare * Devices. That chip is fully compatible with the LM87. Complete 41c7fa3737SJean Delvare * datasheet can be obtained from Analog's website at: 42c7fa3737SJean Delvare * http://www.analog.com/en/prod/0,2877,ADM1024,00.html 43c7fa3737SJean Delvare * 448d5d45fbSJean Delvare * This program is free software; you can redistribute it and/or modify 458d5d45fbSJean Delvare * it under the terms of the GNU General Public License as published by 468d5d45fbSJean Delvare * the Free Software Foundation; either version 2 of the License, or 478d5d45fbSJean Delvare * (at your option) any later version. 488d5d45fbSJean Delvare * 498d5d45fbSJean Delvare * This program is distributed in the hope that it will be useful, 508d5d45fbSJean Delvare * but WITHOUT ANY WARRANTY; without even the implied warranty of 518d5d45fbSJean Delvare * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 528d5d45fbSJean Delvare * GNU General Public License for more details. 538d5d45fbSJean Delvare * 548d5d45fbSJean Delvare * You should have received a copy of the GNU General Public License 558d5d45fbSJean Delvare * along with this program; if not, write to the Free Software 568d5d45fbSJean Delvare * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 578d5d45fbSJean Delvare */ 588d5d45fbSJean Delvare 598d5d45fbSJean Delvare #include <linux/module.h> 608d5d45fbSJean Delvare #include <linux/init.h> 618d5d45fbSJean Delvare #include <linux/slab.h> 628d5d45fbSJean Delvare #include <linux/jiffies.h> 638d5d45fbSJean Delvare #include <linux/i2c.h> 64943b0830SMark M. Hoffman #include <linux/hwmon.h> 65c2803b98SJean Delvare #include <linux/hwmon-sysfs.h> 66303760b4SJean Delvare #include <linux/hwmon-vid.h> 67943b0830SMark M. Hoffman #include <linux/err.h> 689a61bf63SIngo Molnar #include <linux/mutex.h> 6967043d18SMahoda Ratnayaka #include <linux/regulator/consumer.h> 708d5d45fbSJean Delvare 718d5d45fbSJean Delvare /* 728d5d45fbSJean Delvare * Addresses to scan 738d5d45fbSJean Delvare * LM87 has three possible addresses: 0x2c, 0x2d and 0x2e. 748d5d45fbSJean Delvare */ 758d5d45fbSJean Delvare 7625e9c86dSMark M. Hoffman static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 778d5d45fbSJean Delvare 788d5d45fbSJean Delvare /* 798d5d45fbSJean Delvare * The LM87 registers 808d5d45fbSJean Delvare */ 818d5d45fbSJean Delvare 828d5d45fbSJean Delvare /* nr in 0..5 */ 838d5d45fbSJean Delvare #define LM87_REG_IN(nr) (0x20 + (nr)) 848d5d45fbSJean Delvare #define LM87_REG_IN_MAX(nr) (0x2B + (nr) * 2) 858d5d45fbSJean Delvare #define LM87_REG_IN_MIN(nr) (0x2C + (nr) * 2) 868d5d45fbSJean Delvare /* nr in 0..1 */ 878d5d45fbSJean Delvare #define LM87_REG_AIN(nr) (0x28 + (nr)) 888d5d45fbSJean Delvare #define LM87_REG_AIN_MIN(nr) (0x1A + (nr)) 898d5d45fbSJean Delvare #define LM87_REG_AIN_MAX(nr) (0x3B + (nr)) 908d5d45fbSJean Delvare 918d5d45fbSJean Delvare static u8 LM87_REG_TEMP[3] = { 0x27, 0x26, 0x20 }; 928d5d45fbSJean Delvare static u8 LM87_REG_TEMP_HIGH[3] = { 0x39, 0x37, 0x2B }; 938d5d45fbSJean Delvare static u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C }; 948d5d45fbSJean Delvare 958d5d45fbSJean Delvare #define LM87_REG_TEMP_HW_INT_LOCK 0x13 968d5d45fbSJean Delvare #define LM87_REG_TEMP_HW_EXT_LOCK 0x14 978d5d45fbSJean Delvare #define LM87_REG_TEMP_HW_INT 0x17 988d5d45fbSJean Delvare #define LM87_REG_TEMP_HW_EXT 0x18 998d5d45fbSJean Delvare 1008d5d45fbSJean Delvare /* nr in 0..1 */ 1018d5d45fbSJean Delvare #define LM87_REG_FAN(nr) (0x28 + (nr)) 1028d5d45fbSJean Delvare #define LM87_REG_FAN_MIN(nr) (0x3B + (nr)) 1038d5d45fbSJean Delvare #define LM87_REG_AOUT 0x19 1048d5d45fbSJean Delvare 1058d5d45fbSJean Delvare #define LM87_REG_CONFIG 0x40 1068d5d45fbSJean Delvare #define LM87_REG_CHANNEL_MODE 0x16 1078d5d45fbSJean Delvare #define LM87_REG_VID_FAN_DIV 0x47 1088d5d45fbSJean Delvare #define LM87_REG_VID4 0x49 1098d5d45fbSJean Delvare 1108d5d45fbSJean Delvare #define LM87_REG_ALARMS1 0x41 1118d5d45fbSJean Delvare #define LM87_REG_ALARMS2 0x42 1128d5d45fbSJean Delvare 1138d5d45fbSJean Delvare #define LM87_REG_COMPANY_ID 0x3E 1148d5d45fbSJean Delvare #define LM87_REG_REVISION 0x3F 1158d5d45fbSJean Delvare 1168d5d45fbSJean Delvare /* 1178d5d45fbSJean Delvare * Conversions and various macros 1188d5d45fbSJean Delvare * The LM87 uses signed 8-bit values for temperatures. 1198d5d45fbSJean Delvare */ 1208d5d45fbSJean Delvare 1218d5d45fbSJean Delvare #define IN_FROM_REG(reg, scale) (((reg) * (scale) + 96) / 192) 1228d5d45fbSJean Delvare #define IN_TO_REG(val, scale) ((val) <= 0 ? 0 : \ 12312fa55ccSGuenter Roeck (val) >= (scale) * 255 / 192 ? 255 : \ 1248d5d45fbSJean Delvare ((val) * 192 + (scale) / 2) / (scale)) 1258d5d45fbSJean Delvare 1268d5d45fbSJean Delvare #define TEMP_FROM_REG(reg) ((reg) * 1000) 1278d5d45fbSJean Delvare #define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \ 1288d5d45fbSJean Delvare (val) >= 126500 ? 127 : \ 129c6370dbeSGuenter Roeck (((val) < 0 ? (val) - 500 : \ 130c6370dbeSGuenter Roeck (val) + 500) / 1000)) 1318d5d45fbSJean Delvare 1328d5d45fbSJean Delvare #define FAN_FROM_REG(reg, div) ((reg) == 255 || (reg) == 0 ? 0 : \ 133b965d4b7SJean Delvare (1350000 + (reg)*(div) / 2) / ((reg) * (div))) 1348d5d45fbSJean Delvare #define FAN_TO_REG(val, div) ((val) * (div) * 255 <= 1350000 ? 255 : \ 1358d5d45fbSJean Delvare (1350000 + (val)*(div) / 2) / ((val) * (div))) 1368d5d45fbSJean Delvare 1378d5d45fbSJean Delvare #define FAN_DIV_FROM_REG(reg) (1 << (reg)) 1388d5d45fbSJean Delvare 1398d5d45fbSJean Delvare /* analog out is 9.80mV/LSB */ 1408d5d45fbSJean Delvare #define AOUT_FROM_REG(reg) (((reg) * 98 + 5) / 10) 1418d5d45fbSJean Delvare #define AOUT_TO_REG(val) ((val) <= 0 ? 0 : \ 1428d5d45fbSJean Delvare (val) >= 2500 ? 255 : \ 1438d5d45fbSJean Delvare ((val) * 10 + 49) / 98) 1448d5d45fbSJean Delvare 1458d5d45fbSJean Delvare /* nr in 0..1 */ 1468d5d45fbSJean Delvare #define CHAN_NO_FAN(nr) (1 << (nr)) 1478d5d45fbSJean Delvare #define CHAN_TEMP3 (1 << 2) 1488d5d45fbSJean Delvare #define CHAN_VCC_5V (1 << 3) 149889af3d5SJean Delvare #define CHAN_NO_VID (1 << 7) 1508d5d45fbSJean Delvare 1518d5d45fbSJean Delvare /* 1528d5d45fbSJean Delvare * Client data (each client gets its own) 1538d5d45fbSJean Delvare */ 1548d5d45fbSJean Delvare 1558d5d45fbSJean Delvare struct lm87_data { 1569a61bf63SIngo Molnar struct mutex update_lock; 1578d5d45fbSJean Delvare char valid; /* zero until following fields are valid */ 1588d5d45fbSJean Delvare unsigned long last_updated; /* In jiffies */ 1598d5d45fbSJean Delvare 1608d5d45fbSJean Delvare u8 channel; /* register value */ 161d2cac802SBen Hutchings u8 config; /* original register value */ 1628d5d45fbSJean Delvare 1638d5d45fbSJean Delvare u8 in[8]; /* register value */ 1648d5d45fbSJean Delvare u8 in_max[8]; /* register value */ 1658d5d45fbSJean Delvare u8 in_min[8]; /* register value */ 1668d5d45fbSJean Delvare u16 in_scale[8]; 1678d5d45fbSJean Delvare 1688d5d45fbSJean Delvare s8 temp[3]; /* register value */ 1698d5d45fbSJean Delvare s8 temp_high[3]; /* register value */ 1708d5d45fbSJean Delvare s8 temp_low[3]; /* register value */ 1718d5d45fbSJean Delvare s8 temp_crit_int; /* min of two register values */ 1728d5d45fbSJean Delvare s8 temp_crit_ext; /* min of two register values */ 1738d5d45fbSJean Delvare 1748d5d45fbSJean Delvare u8 fan[2]; /* register value */ 1758d5d45fbSJean Delvare u8 fan_min[2]; /* register value */ 1768d5d45fbSJean Delvare u8 fan_div[2]; /* register value, shifted right */ 1778d5d45fbSJean Delvare u8 aout; /* register value */ 1788d5d45fbSJean Delvare 1798d5d45fbSJean Delvare u16 alarms; /* register values, combined */ 1808d5d45fbSJean Delvare u8 vid; /* register values, combined */ 1818d5d45fbSJean Delvare u8 vrm; 18200a0c905SJason Gunthorpe 18300a0c905SJason Gunthorpe const struct attribute_group *attr_groups[6]; 1848d5d45fbSJean Delvare }; 1858d5d45fbSJean Delvare 1868d5d45fbSJean Delvare static inline int lm87_read_value(struct i2c_client *client, u8 reg) 1878d5d45fbSJean Delvare { 1888d5d45fbSJean Delvare return i2c_smbus_read_byte_data(client, reg); 1898d5d45fbSJean Delvare } 1908d5d45fbSJean Delvare 1918d5d45fbSJean Delvare static inline int lm87_write_value(struct i2c_client *client, u8 reg, u8 value) 1928d5d45fbSJean Delvare { 1938d5d45fbSJean Delvare return i2c_smbus_write_byte_data(client, reg, value); 1948d5d45fbSJean Delvare } 1958d5d45fbSJean Delvare 1968652a264SJean Delvare static struct lm87_data *lm87_update_device(struct device *dev) 1978652a264SJean Delvare { 19800a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 1998652a264SJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 2008652a264SJean Delvare 2018652a264SJean Delvare mutex_lock(&data->update_lock); 2028652a264SJean Delvare 2038652a264SJean Delvare if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 2048652a264SJean Delvare int i, j; 2058652a264SJean Delvare 2068652a264SJean Delvare dev_dbg(&client->dev, "Updating data.\n"); 2078652a264SJean Delvare 2088652a264SJean Delvare i = (data->channel & CHAN_TEMP3) ? 1 : 0; 2098652a264SJean Delvare j = (data->channel & CHAN_TEMP3) ? 5 : 6; 2108652a264SJean Delvare for (; i < j; i++) { 2118652a264SJean Delvare data->in[i] = lm87_read_value(client, 2128652a264SJean Delvare LM87_REG_IN(i)); 2138652a264SJean Delvare data->in_min[i] = lm87_read_value(client, 2148652a264SJean Delvare LM87_REG_IN_MIN(i)); 2158652a264SJean Delvare data->in_max[i] = lm87_read_value(client, 2168652a264SJean Delvare LM87_REG_IN_MAX(i)); 2178652a264SJean Delvare } 2188652a264SJean Delvare 2198652a264SJean Delvare for (i = 0; i < 2; i++) { 2208652a264SJean Delvare if (data->channel & CHAN_NO_FAN(i)) { 2218652a264SJean Delvare data->in[6+i] = lm87_read_value(client, 2228652a264SJean Delvare LM87_REG_AIN(i)); 2238652a264SJean Delvare data->in_max[6+i] = lm87_read_value(client, 2248652a264SJean Delvare LM87_REG_AIN_MAX(i)); 2258652a264SJean Delvare data->in_min[6+i] = lm87_read_value(client, 2268652a264SJean Delvare LM87_REG_AIN_MIN(i)); 2278652a264SJean Delvare 2288652a264SJean Delvare } else { 2298652a264SJean Delvare data->fan[i] = lm87_read_value(client, 2308652a264SJean Delvare LM87_REG_FAN(i)); 2318652a264SJean Delvare data->fan_min[i] = lm87_read_value(client, 2328652a264SJean Delvare LM87_REG_FAN_MIN(i)); 2338652a264SJean Delvare } 2348652a264SJean Delvare } 2358652a264SJean Delvare 2368652a264SJean Delvare j = (data->channel & CHAN_TEMP3) ? 3 : 2; 2378652a264SJean Delvare for (i = 0 ; i < j; i++) { 2388652a264SJean Delvare data->temp[i] = lm87_read_value(client, 2398652a264SJean Delvare LM87_REG_TEMP[i]); 2408652a264SJean Delvare data->temp_high[i] = lm87_read_value(client, 2418652a264SJean Delvare LM87_REG_TEMP_HIGH[i]); 2428652a264SJean Delvare data->temp_low[i] = lm87_read_value(client, 2438652a264SJean Delvare LM87_REG_TEMP_LOW[i]); 2448652a264SJean Delvare } 2458652a264SJean Delvare 2468652a264SJean Delvare i = lm87_read_value(client, LM87_REG_TEMP_HW_INT_LOCK); 2478652a264SJean Delvare j = lm87_read_value(client, LM87_REG_TEMP_HW_INT); 2488652a264SJean Delvare data->temp_crit_int = min(i, j); 2498652a264SJean Delvare 2508652a264SJean Delvare i = lm87_read_value(client, LM87_REG_TEMP_HW_EXT_LOCK); 2518652a264SJean Delvare j = lm87_read_value(client, LM87_REG_TEMP_HW_EXT); 2528652a264SJean Delvare data->temp_crit_ext = min(i, j); 2538652a264SJean Delvare 2548652a264SJean Delvare i = lm87_read_value(client, LM87_REG_VID_FAN_DIV); 2558652a264SJean Delvare data->fan_div[0] = (i >> 4) & 0x03; 2568652a264SJean Delvare data->fan_div[1] = (i >> 6) & 0x03; 2578652a264SJean Delvare data->vid = (i & 0x0F) 2588652a264SJean Delvare | (lm87_read_value(client, LM87_REG_VID4) & 0x01) 2598652a264SJean Delvare << 4; 2608652a264SJean Delvare 2618652a264SJean Delvare data->alarms = lm87_read_value(client, LM87_REG_ALARMS1) 2628652a264SJean Delvare | (lm87_read_value(client, LM87_REG_ALARMS2) 2638652a264SJean Delvare << 8); 2648652a264SJean Delvare data->aout = lm87_read_value(client, LM87_REG_AOUT); 2658652a264SJean Delvare 2668652a264SJean Delvare data->last_updated = jiffies; 2678652a264SJean Delvare data->valid = 1; 2688652a264SJean Delvare } 2698652a264SJean Delvare 2708652a264SJean Delvare mutex_unlock(&data->update_lock); 2718652a264SJean Delvare 2728652a264SJean Delvare return data; 2738652a264SJean Delvare } 2748652a264SJean Delvare 2758652a264SJean Delvare /* 2768652a264SJean Delvare * Sysfs stuff 2778652a264SJean Delvare */ 2788652a264SJean Delvare 279f6c93aebSGuenter Roeck static ssize_t in_input_show(struct device *dev, 280f6c93aebSGuenter Roeck struct device_attribute *attr, char *buf) 2810e190b7fSJean Delvare { 2820e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 2830e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 2848d5d45fbSJean Delvare 2850e190b7fSJean Delvare return sprintf(buf, "%u\n", IN_FROM_REG(data->in[nr], 2860e190b7fSJean Delvare data->in_scale[nr])); 2870e190b7fSJean Delvare } 2880e190b7fSJean Delvare 289f6c93aebSGuenter Roeck static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, 290f6c93aebSGuenter Roeck char *buf) 2910e190b7fSJean Delvare { 2920e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 2930e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 2940e190b7fSJean Delvare 2950e190b7fSJean Delvare return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[nr], 2960e190b7fSJean Delvare data->in_scale[nr])); 2970e190b7fSJean Delvare } 2980e190b7fSJean Delvare 299f6c93aebSGuenter Roeck static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, 300f6c93aebSGuenter Roeck char *buf) 3010e190b7fSJean Delvare { 3020e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 3030e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 3040e190b7fSJean Delvare 3050e190b7fSJean Delvare return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[nr], 3060e190b7fSJean Delvare data->in_scale[nr])); 3070e190b7fSJean Delvare } 3080e190b7fSJean Delvare 309f6c93aebSGuenter Roeck static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, 3100e190b7fSJean Delvare const char *buf, size_t count) 3118d5d45fbSJean Delvare { 31200a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 3138d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 3140e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 315c6370dbeSGuenter Roeck long val; 316c6370dbeSGuenter Roeck int err; 317c6370dbeSGuenter Roeck 318c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 319c6370dbeSGuenter Roeck if (err) 320c6370dbeSGuenter Roeck return err; 3218d5d45fbSJean Delvare 3229a61bf63SIngo Molnar mutex_lock(&data->update_lock); 3238d5d45fbSJean Delvare data->in_min[nr] = IN_TO_REG(val, data->in_scale[nr]); 3248d5d45fbSJean Delvare lm87_write_value(client, nr < 6 ? LM87_REG_IN_MIN(nr) : 3258d5d45fbSJean Delvare LM87_REG_AIN_MIN(nr - 6), data->in_min[nr]); 3269a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 327c6370dbeSGuenter Roeck return count; 3288d5d45fbSJean Delvare } 3298d5d45fbSJean Delvare 330f6c93aebSGuenter Roeck static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, 3310e190b7fSJean Delvare const char *buf, size_t count) 3328d5d45fbSJean Delvare { 33300a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 3348d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 3350e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 336c6370dbeSGuenter Roeck long val; 337c6370dbeSGuenter Roeck int err; 338c6370dbeSGuenter Roeck 339c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 340c6370dbeSGuenter Roeck if (err) 341c6370dbeSGuenter Roeck return err; 3428d5d45fbSJean Delvare 3439a61bf63SIngo Molnar mutex_lock(&data->update_lock); 3448d5d45fbSJean Delvare data->in_max[nr] = IN_TO_REG(val, data->in_scale[nr]); 3458d5d45fbSJean Delvare lm87_write_value(client, nr < 6 ? LM87_REG_IN_MAX(nr) : 3468d5d45fbSJean Delvare LM87_REG_AIN_MAX(nr - 6), data->in_max[nr]); 3479a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 348c6370dbeSGuenter Roeck return count; 3498d5d45fbSJean Delvare } 3508d5d45fbSJean Delvare 351f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in0_input, in_input, 0); 352f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); 353f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); 354f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in1_input, in_input, 1); 355f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); 356f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); 357f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in2_input, in_input, 2); 358f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); 359f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); 360f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in3_input, in_input, 3); 361f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); 362f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); 363f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in4_input, in_input, 4); 364f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); 365f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); 366f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in5_input, in_input, 5); 367f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5); 368f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5); 369f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in6_input, in_input, 6); 370f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6); 371f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6); 372f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in7_input, in_input, 7); 373f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7); 374f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7); 3758d5d45fbSJean Delvare 376f6c93aebSGuenter Roeck static ssize_t temp_input_show(struct device *dev, 3770e190b7fSJean Delvare struct device_attribute *attr, char *buf) 3780e190b7fSJean Delvare { 3790e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 3800e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 3818d5d45fbSJean Delvare 3820e190b7fSJean Delvare return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 3830e190b7fSJean Delvare } 3840e190b7fSJean Delvare 385f6c93aebSGuenter Roeck static ssize_t temp_low_show(struct device *dev, 3860e190b7fSJean Delvare struct device_attribute *attr, char *buf) 3870e190b7fSJean Delvare { 3880e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 3890e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 3900e190b7fSJean Delvare 3910e190b7fSJean Delvare return sprintf(buf, "%d\n", 3920e190b7fSJean Delvare TEMP_FROM_REG(data->temp_low[nr])); 3930e190b7fSJean Delvare } 3940e190b7fSJean Delvare 395f6c93aebSGuenter Roeck static ssize_t temp_high_show(struct device *dev, 3960e190b7fSJean Delvare struct device_attribute *attr, char *buf) 3970e190b7fSJean Delvare { 3980e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 3990e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 4000e190b7fSJean Delvare 4010e190b7fSJean Delvare return sprintf(buf, "%d\n", 4020e190b7fSJean Delvare TEMP_FROM_REG(data->temp_high[nr])); 4030e190b7fSJean Delvare } 4040e190b7fSJean Delvare 405f6c93aebSGuenter Roeck static ssize_t temp_low_store(struct device *dev, 406f6c93aebSGuenter Roeck struct device_attribute *attr, const char *buf, 407f6c93aebSGuenter Roeck size_t count) 4088d5d45fbSJean Delvare { 40900a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 4108d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 4110e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 412c6370dbeSGuenter Roeck long val; 413c6370dbeSGuenter Roeck int err; 414c6370dbeSGuenter Roeck 415c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 416c6370dbeSGuenter Roeck if (err) 417c6370dbeSGuenter Roeck return err; 4188d5d45fbSJean Delvare 4199a61bf63SIngo Molnar mutex_lock(&data->update_lock); 4208d5d45fbSJean Delvare data->temp_low[nr] = TEMP_TO_REG(val); 4218d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_TEMP_LOW[nr], data->temp_low[nr]); 4229a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 423c6370dbeSGuenter Roeck return count; 4248d5d45fbSJean Delvare } 4258d5d45fbSJean Delvare 426f6c93aebSGuenter Roeck static ssize_t temp_high_store(struct device *dev, 427f6c93aebSGuenter Roeck struct device_attribute *attr, const char *buf, 428f6c93aebSGuenter Roeck size_t count) 4298d5d45fbSJean Delvare { 43000a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 4318d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 4320e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 433c6370dbeSGuenter Roeck long val; 434c6370dbeSGuenter Roeck int err; 435c6370dbeSGuenter Roeck 436c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 437c6370dbeSGuenter Roeck if (err) 438c6370dbeSGuenter Roeck return err; 4398d5d45fbSJean Delvare 4409a61bf63SIngo Molnar mutex_lock(&data->update_lock); 4418d5d45fbSJean Delvare data->temp_high[nr] = TEMP_TO_REG(val); 4428d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_TEMP_HIGH[nr], data->temp_high[nr]); 4439a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 444c6370dbeSGuenter Roeck return count; 4458d5d45fbSJean Delvare } 4468d5d45fbSJean Delvare 447f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0); 448f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_low, 0); 449f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_high, 0); 450f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_input, 1); 451f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_low, 1); 452f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_high, 1); 453f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp3_input, temp_input, 2); 454f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_low, 2); 455f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_high, 2); 4568d5d45fbSJean Delvare 45707a366ccSJulia Lawall static ssize_t temp1_crit_show(struct device *dev, 458c6370dbeSGuenter Roeck struct device_attribute *attr, char *buf) 4598d5d45fbSJean Delvare { 4608d5d45fbSJean Delvare struct lm87_data *data = lm87_update_device(dev); 4618d5d45fbSJean Delvare return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_int)); 4628d5d45fbSJean Delvare } 4638d5d45fbSJean Delvare 46407a366ccSJulia Lawall static ssize_t temp2_crit_show(struct device *dev, 465c6370dbeSGuenter Roeck struct device_attribute *attr, char *buf) 4668d5d45fbSJean Delvare { 4678d5d45fbSJean Delvare struct lm87_data *data = lm87_update_device(dev); 4688d5d45fbSJean Delvare return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_ext)); 4698d5d45fbSJean Delvare } 4708d5d45fbSJean Delvare 47107a366ccSJulia Lawall static DEVICE_ATTR_RO(temp1_crit); 47207a366ccSJulia Lawall static DEVICE_ATTR_RO(temp2_crit); 473f6c93aebSGuenter Roeck static DEVICE_ATTR(temp3_crit, 0444, temp2_crit_show, NULL); 4748d5d45fbSJean Delvare 475f6c93aebSGuenter Roeck static ssize_t fan_input_show(struct device *dev, 4760e190b7fSJean Delvare struct device_attribute *attr, char *buf) 4770e190b7fSJean Delvare { 4780e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 4790e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 4808d5d45fbSJean Delvare 4810e190b7fSJean Delvare return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 4820e190b7fSJean Delvare FAN_DIV_FROM_REG(data->fan_div[nr]))); 4830e190b7fSJean Delvare } 4840e190b7fSJean Delvare 485f6c93aebSGuenter Roeck static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, 486f6c93aebSGuenter Roeck char *buf) 4870e190b7fSJean Delvare { 4880e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 4890e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 4900e190b7fSJean Delvare 4910e190b7fSJean Delvare return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 4920e190b7fSJean Delvare FAN_DIV_FROM_REG(data->fan_div[nr]))); 4930e190b7fSJean Delvare } 4940e190b7fSJean Delvare 495f6c93aebSGuenter Roeck static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr, 496f6c93aebSGuenter Roeck char *buf) 4970e190b7fSJean Delvare { 4980e190b7fSJean Delvare struct lm87_data *data = lm87_update_device(dev); 4990e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 5000e190b7fSJean Delvare 5010e190b7fSJean Delvare return sprintf(buf, "%d\n", 5020e190b7fSJean Delvare FAN_DIV_FROM_REG(data->fan_div[nr])); 5030e190b7fSJean Delvare } 5040e190b7fSJean Delvare 505f6c93aebSGuenter Roeck static ssize_t fan_min_store(struct device *dev, 506f6c93aebSGuenter Roeck struct device_attribute *attr, const char *buf, 507f6c93aebSGuenter Roeck size_t count) 5088d5d45fbSJean Delvare { 50900a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 5108d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 5110e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 512c6370dbeSGuenter Roeck long val; 513c6370dbeSGuenter Roeck int err; 514c6370dbeSGuenter Roeck 515c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 516c6370dbeSGuenter Roeck if (err) 517c6370dbeSGuenter Roeck return err; 5188d5d45fbSJean Delvare 5199a61bf63SIngo Molnar mutex_lock(&data->update_lock); 5208d5d45fbSJean Delvare data->fan_min[nr] = FAN_TO_REG(val, 5218d5d45fbSJean Delvare FAN_DIV_FROM_REG(data->fan_div[nr])); 5228d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_FAN_MIN(nr), data->fan_min[nr]); 5239a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 524c6370dbeSGuenter Roeck return count; 5258d5d45fbSJean Delvare } 5268d5d45fbSJean Delvare 527c6370dbeSGuenter Roeck /* 528c6370dbeSGuenter Roeck * Note: we save and restore the fan minimum here, because its value is 529c6370dbeSGuenter Roeck * determined in part by the fan clock divider. This follows the principle 530c6370dbeSGuenter Roeck * of least surprise; the user doesn't expect the fan minimum to change just 531c6370dbeSGuenter Roeck * because the divider changed. 532c6370dbeSGuenter Roeck */ 533f6c93aebSGuenter Roeck static ssize_t fan_div_store(struct device *dev, 534f6c93aebSGuenter Roeck struct device_attribute *attr, const char *buf, 535f6c93aebSGuenter Roeck size_t count) 5368d5d45fbSJean Delvare { 53700a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 5388d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 5390e190b7fSJean Delvare int nr = to_sensor_dev_attr(attr)->index; 540c6370dbeSGuenter Roeck long val; 541c6370dbeSGuenter Roeck int err; 5428d5d45fbSJean Delvare unsigned long min; 5438d5d45fbSJean Delvare u8 reg; 5448d5d45fbSJean Delvare 545c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 546c6370dbeSGuenter Roeck if (err) 547c6370dbeSGuenter Roeck return err; 548c6370dbeSGuenter Roeck 5499a61bf63SIngo Molnar mutex_lock(&data->update_lock); 5508d5d45fbSJean Delvare min = FAN_FROM_REG(data->fan_min[nr], 5518d5d45fbSJean Delvare FAN_DIV_FROM_REG(data->fan_div[nr])); 5528d5d45fbSJean Delvare 5538d5d45fbSJean Delvare switch (val) { 554c6370dbeSGuenter Roeck case 1: 555c6370dbeSGuenter Roeck data->fan_div[nr] = 0; 556c6370dbeSGuenter Roeck break; 557c6370dbeSGuenter Roeck case 2: 558c6370dbeSGuenter Roeck data->fan_div[nr] = 1; 559c6370dbeSGuenter Roeck break; 560c6370dbeSGuenter Roeck case 4: 561c6370dbeSGuenter Roeck data->fan_div[nr] = 2; 562c6370dbeSGuenter Roeck break; 563c6370dbeSGuenter Roeck case 8: 564c6370dbeSGuenter Roeck data->fan_div[nr] = 3; 565c6370dbeSGuenter Roeck break; 5668d5d45fbSJean Delvare default: 5679a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 5688d5d45fbSJean Delvare return -EINVAL; 5698d5d45fbSJean Delvare } 5708d5d45fbSJean Delvare 5718d5d45fbSJean Delvare reg = lm87_read_value(client, LM87_REG_VID_FAN_DIV); 5728d5d45fbSJean Delvare switch (nr) { 5738d5d45fbSJean Delvare case 0: 5748d5d45fbSJean Delvare reg = (reg & 0xCF) | (data->fan_div[0] << 4); 5758d5d45fbSJean Delvare break; 5768d5d45fbSJean Delvare case 1: 5778d5d45fbSJean Delvare reg = (reg & 0x3F) | (data->fan_div[1] << 6); 5788d5d45fbSJean Delvare break; 5798d5d45fbSJean Delvare } 5808d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_VID_FAN_DIV, reg); 5818d5d45fbSJean Delvare 5828d5d45fbSJean Delvare data->fan_min[nr] = FAN_TO_REG(min, val); 5838d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_FAN_MIN(nr), 5848d5d45fbSJean Delvare data->fan_min[nr]); 5859a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 5868d5d45fbSJean Delvare 5878d5d45fbSJean Delvare return count; 5888d5d45fbSJean Delvare } 5898d5d45fbSJean Delvare 590f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0); 591f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); 592f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); 593f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1); 594f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); 595f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); 5968d5d45fbSJean Delvare 59707a366ccSJulia Lawall static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, 598c6370dbeSGuenter Roeck char *buf) 5998d5d45fbSJean Delvare { 6008d5d45fbSJean Delvare struct lm87_data *data = lm87_update_device(dev); 6018d5d45fbSJean Delvare return sprintf(buf, "%d\n", data->alarms); 6028d5d45fbSJean Delvare } 60307a366ccSJulia Lawall static DEVICE_ATTR_RO(alarms); 6048d5d45fbSJean Delvare 60507a366ccSJulia Lawall static ssize_t cpu0_vid_show(struct device *dev, 60607a366ccSJulia Lawall struct device_attribute *attr, char *buf) 6078d5d45fbSJean Delvare { 6088d5d45fbSJean Delvare struct lm87_data *data = lm87_update_device(dev); 6098d5d45fbSJean Delvare return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); 6108d5d45fbSJean Delvare } 61107a366ccSJulia Lawall static DEVICE_ATTR_RO(cpu0_vid); 6128d5d45fbSJean Delvare 61307a366ccSJulia Lawall static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, 614c6370dbeSGuenter Roeck char *buf) 6158d5d45fbSJean Delvare { 61690d6619aSJean Delvare struct lm87_data *data = dev_get_drvdata(dev); 6178d5d45fbSJean Delvare return sprintf(buf, "%d\n", data->vrm); 6188d5d45fbSJean Delvare } 61907a366ccSJulia Lawall static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, 620c6370dbeSGuenter Roeck const char *buf, size_t count) 6218d5d45fbSJean Delvare { 6228f74efe8SJean Delvare struct lm87_data *data = dev_get_drvdata(dev); 623c6370dbeSGuenter Roeck unsigned long val; 624c6370dbeSGuenter Roeck int err; 625c6370dbeSGuenter Roeck 626c6370dbeSGuenter Roeck err = kstrtoul(buf, 10, &val); 627c6370dbeSGuenter Roeck if (err) 628c6370dbeSGuenter Roeck return err; 629fa642d9dSAxel Lin 630fa642d9dSAxel Lin if (val > 255) 631fa642d9dSAxel Lin return -EINVAL; 632fa642d9dSAxel Lin 633c6370dbeSGuenter Roeck data->vrm = val; 6348d5d45fbSJean Delvare return count; 6358d5d45fbSJean Delvare } 63607a366ccSJulia Lawall static DEVICE_ATTR_RW(vrm); 6378d5d45fbSJean Delvare 63807a366ccSJulia Lawall static ssize_t aout_output_show(struct device *dev, 63907a366ccSJulia Lawall struct device_attribute *attr, char *buf) 6408d5d45fbSJean Delvare { 6418d5d45fbSJean Delvare struct lm87_data *data = lm87_update_device(dev); 6428d5d45fbSJean Delvare return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout)); 6438d5d45fbSJean Delvare } 64407a366ccSJulia Lawall static ssize_t aout_output_store(struct device *dev, 64507a366ccSJulia Lawall struct device_attribute *attr, 646c6370dbeSGuenter Roeck const char *buf, size_t count) 6478d5d45fbSJean Delvare { 64800a0c905SJason Gunthorpe struct i2c_client *client = dev_get_drvdata(dev); 6498d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 650c6370dbeSGuenter Roeck long val; 651c6370dbeSGuenter Roeck int err; 652c6370dbeSGuenter Roeck 653c6370dbeSGuenter Roeck err = kstrtol(buf, 10, &val); 654c6370dbeSGuenter Roeck if (err) 655c6370dbeSGuenter Roeck return err; 6568d5d45fbSJean Delvare 6579a61bf63SIngo Molnar mutex_lock(&data->update_lock); 6588d5d45fbSJean Delvare data->aout = AOUT_TO_REG(val); 6598d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_AOUT, data->aout); 6609a61bf63SIngo Molnar mutex_unlock(&data->update_lock); 6618d5d45fbSJean Delvare return count; 6628d5d45fbSJean Delvare } 66307a366ccSJulia Lawall static DEVICE_ATTR_RW(aout_output); 6648d5d45fbSJean Delvare 665f6c93aebSGuenter Roeck static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, 666c2803b98SJean Delvare char *buf) 667c2803b98SJean Delvare { 668c2803b98SJean Delvare struct lm87_data *data = lm87_update_device(dev); 669c2803b98SJean Delvare int bitnr = to_sensor_dev_attr(attr)->index; 670c2803b98SJean Delvare return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); 671c2803b98SJean Delvare } 672f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0); 673f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1); 674f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2); 675f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); 676f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8); 677f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 9); 678f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 6); 679f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 7); 680f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4); 681f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 5); 682f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 5); 683f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6); 684f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7); 685f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 14); 686f6c93aebSGuenter Roeck static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 15); 687c2803b98SJean Delvare 6888d5d45fbSJean Delvare /* 6898d5d45fbSJean Delvare * Real code 6908d5d45fbSJean Delvare */ 6918d5d45fbSJean Delvare 6920501a381SMark M. Hoffman static struct attribute *lm87_attributes[] = { 6930e190b7fSJean Delvare &sensor_dev_attr_in1_input.dev_attr.attr, 6940e190b7fSJean Delvare &sensor_dev_attr_in1_min.dev_attr.attr, 6950e190b7fSJean Delvare &sensor_dev_attr_in1_max.dev_attr.attr, 696c2803b98SJean Delvare &sensor_dev_attr_in1_alarm.dev_attr.attr, 6970e190b7fSJean Delvare &sensor_dev_attr_in2_input.dev_attr.attr, 6980e190b7fSJean Delvare &sensor_dev_attr_in2_min.dev_attr.attr, 6990e190b7fSJean Delvare &sensor_dev_attr_in2_max.dev_attr.attr, 700c2803b98SJean Delvare &sensor_dev_attr_in2_alarm.dev_attr.attr, 7010e190b7fSJean Delvare &sensor_dev_attr_in3_input.dev_attr.attr, 7020e190b7fSJean Delvare &sensor_dev_attr_in3_min.dev_attr.attr, 7030e190b7fSJean Delvare &sensor_dev_attr_in3_max.dev_attr.attr, 704c2803b98SJean Delvare &sensor_dev_attr_in3_alarm.dev_attr.attr, 7050e190b7fSJean Delvare &sensor_dev_attr_in4_input.dev_attr.attr, 7060e190b7fSJean Delvare &sensor_dev_attr_in4_min.dev_attr.attr, 7070e190b7fSJean Delvare &sensor_dev_attr_in4_max.dev_attr.attr, 708c2803b98SJean Delvare &sensor_dev_attr_in4_alarm.dev_attr.attr, 7090501a381SMark M. Hoffman 7100e190b7fSJean Delvare &sensor_dev_attr_temp1_input.dev_attr.attr, 7110e190b7fSJean Delvare &sensor_dev_attr_temp1_max.dev_attr.attr, 7120e190b7fSJean Delvare &sensor_dev_attr_temp1_min.dev_attr.attr, 7130501a381SMark M. Hoffman &dev_attr_temp1_crit.attr, 714c2803b98SJean Delvare &sensor_dev_attr_temp1_alarm.dev_attr.attr, 7150e190b7fSJean Delvare &sensor_dev_attr_temp2_input.dev_attr.attr, 7160e190b7fSJean Delvare &sensor_dev_attr_temp2_max.dev_attr.attr, 7170e190b7fSJean Delvare &sensor_dev_attr_temp2_min.dev_attr.attr, 7180501a381SMark M. Hoffman &dev_attr_temp2_crit.attr, 719c2803b98SJean Delvare &sensor_dev_attr_temp2_alarm.dev_attr.attr, 720c2803b98SJean Delvare &sensor_dev_attr_temp2_fault.dev_attr.attr, 7210501a381SMark M. Hoffman 7220501a381SMark M. Hoffman &dev_attr_alarms.attr, 7230501a381SMark M. Hoffman &dev_attr_aout_output.attr, 7240501a381SMark M. Hoffman 7250501a381SMark M. Hoffman NULL 7260501a381SMark M. Hoffman }; 7270501a381SMark M. Hoffman 7280501a381SMark M. Hoffman static const struct attribute_group lm87_group = { 7290501a381SMark M. Hoffman .attrs = lm87_attributes, 7300501a381SMark M. Hoffman }; 7310501a381SMark M. Hoffman 732073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_in6[] = { 7330e190b7fSJean Delvare &sensor_dev_attr_in6_input.dev_attr.attr, 7340e190b7fSJean Delvare &sensor_dev_attr_in6_min.dev_attr.attr, 7350e190b7fSJean Delvare &sensor_dev_attr_in6_max.dev_attr.attr, 736c2803b98SJean Delvare &sensor_dev_attr_in6_alarm.dev_attr.attr, 737073f1e6cSGuenter Roeck NULL 738073f1e6cSGuenter Roeck }; 7390501a381SMark M. Hoffman 740073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_in6 = { 741073f1e6cSGuenter Roeck .attrs = lm87_attributes_in6, 742073f1e6cSGuenter Roeck }; 743073f1e6cSGuenter Roeck 744073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_fan1[] = { 7450e190b7fSJean Delvare &sensor_dev_attr_fan1_input.dev_attr.attr, 7460e190b7fSJean Delvare &sensor_dev_attr_fan1_min.dev_attr.attr, 7470e190b7fSJean Delvare &sensor_dev_attr_fan1_div.dev_attr.attr, 748c2803b98SJean Delvare &sensor_dev_attr_fan1_alarm.dev_attr.attr, 749073f1e6cSGuenter Roeck NULL 750073f1e6cSGuenter Roeck }; 7510501a381SMark M. Hoffman 752073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_fan1 = { 753073f1e6cSGuenter Roeck .attrs = lm87_attributes_fan1, 754073f1e6cSGuenter Roeck }; 755073f1e6cSGuenter Roeck 756073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_in7[] = { 7570e190b7fSJean Delvare &sensor_dev_attr_in7_input.dev_attr.attr, 7580e190b7fSJean Delvare &sensor_dev_attr_in7_min.dev_attr.attr, 7590e190b7fSJean Delvare &sensor_dev_attr_in7_max.dev_attr.attr, 760c2803b98SJean Delvare &sensor_dev_attr_in7_alarm.dev_attr.attr, 761073f1e6cSGuenter Roeck NULL 762073f1e6cSGuenter Roeck }; 7630501a381SMark M. Hoffman 764073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_in7 = { 765073f1e6cSGuenter Roeck .attrs = lm87_attributes_in7, 766073f1e6cSGuenter Roeck }; 767073f1e6cSGuenter Roeck 768073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_fan2[] = { 7690e190b7fSJean Delvare &sensor_dev_attr_fan2_input.dev_attr.attr, 7700e190b7fSJean Delvare &sensor_dev_attr_fan2_min.dev_attr.attr, 7710e190b7fSJean Delvare &sensor_dev_attr_fan2_div.dev_attr.attr, 772c2803b98SJean Delvare &sensor_dev_attr_fan2_alarm.dev_attr.attr, 773073f1e6cSGuenter Roeck NULL 774073f1e6cSGuenter Roeck }; 7750501a381SMark M. Hoffman 776073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_fan2 = { 777073f1e6cSGuenter Roeck .attrs = lm87_attributes_fan2, 778073f1e6cSGuenter Roeck }; 779073f1e6cSGuenter Roeck 780073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_temp3[] = { 7810e190b7fSJean Delvare &sensor_dev_attr_temp3_input.dev_attr.attr, 7820e190b7fSJean Delvare &sensor_dev_attr_temp3_max.dev_attr.attr, 7830e190b7fSJean Delvare &sensor_dev_attr_temp3_min.dev_attr.attr, 7840501a381SMark M. Hoffman &dev_attr_temp3_crit.attr, 785c2803b98SJean Delvare &sensor_dev_attr_temp3_alarm.dev_attr.attr, 786c2803b98SJean Delvare &sensor_dev_attr_temp3_fault.dev_attr.attr, 787073f1e6cSGuenter Roeck NULL 788073f1e6cSGuenter Roeck }; 7890501a381SMark M. Hoffman 790073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_temp3 = { 791073f1e6cSGuenter Roeck .attrs = lm87_attributes_temp3, 792073f1e6cSGuenter Roeck }; 793073f1e6cSGuenter Roeck 794073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_in0_5[] = { 7950e190b7fSJean Delvare &sensor_dev_attr_in0_input.dev_attr.attr, 7960e190b7fSJean Delvare &sensor_dev_attr_in0_min.dev_attr.attr, 7970e190b7fSJean Delvare &sensor_dev_attr_in0_max.dev_attr.attr, 798c2803b98SJean Delvare &sensor_dev_attr_in0_alarm.dev_attr.attr, 7990e190b7fSJean Delvare &sensor_dev_attr_in5_input.dev_attr.attr, 8000e190b7fSJean Delvare &sensor_dev_attr_in5_min.dev_attr.attr, 8010e190b7fSJean Delvare &sensor_dev_attr_in5_max.dev_attr.attr, 802c2803b98SJean Delvare &sensor_dev_attr_in5_alarm.dev_attr.attr, 8030501a381SMark M. Hoffman NULL 8040501a381SMark M. Hoffman }; 8050501a381SMark M. Hoffman 806073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_in0_5 = { 807073f1e6cSGuenter Roeck .attrs = lm87_attributes_in0_5, 808073f1e6cSGuenter Roeck }; 809073f1e6cSGuenter Roeck 810073f1e6cSGuenter Roeck static struct attribute *lm87_attributes_vid[] = { 811073f1e6cSGuenter Roeck &dev_attr_cpu0_vid.attr, 812073f1e6cSGuenter Roeck &dev_attr_vrm.attr, 813073f1e6cSGuenter Roeck NULL 814073f1e6cSGuenter Roeck }; 815073f1e6cSGuenter Roeck 816073f1e6cSGuenter Roeck static const struct attribute_group lm87_group_vid = { 817073f1e6cSGuenter Roeck .attrs = lm87_attributes_vid, 8180501a381SMark M. Hoffman }; 8190501a381SMark M. Hoffman 820a888420aSJean Delvare /* Return 0 if detection is successful, -ENODEV otherwise */ 8218652a264SJean Delvare static int lm87_detect(struct i2c_client *client, struct i2c_board_info *info) 8228d5d45fbSJean Delvare { 8238652a264SJean Delvare struct i2c_adapter *adapter = client->adapter; 82452df6440SJean Delvare const char *name; 82552df6440SJean Delvare u8 cid, rev; 8268d5d45fbSJean Delvare 8278d5d45fbSJean Delvare if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 828a888420aSJean Delvare return -ENODEV; 8298d5d45fbSJean Delvare 8308652a264SJean Delvare if (lm87_read_value(client, LM87_REG_CONFIG) & 0x80) 83152df6440SJean Delvare return -ENODEV; 8328d5d45fbSJean Delvare 8338d5d45fbSJean Delvare /* Now, we do the remaining detection. */ 8348652a264SJean Delvare cid = lm87_read_value(client, LM87_REG_COMPANY_ID); 8358652a264SJean Delvare rev = lm87_read_value(client, LM87_REG_REVISION); 8368d5d45fbSJean Delvare 837c7fa3737SJean Delvare if (cid == 0x02 /* National Semiconductor */ 838c7fa3737SJean Delvare && (rev >= 0x01 && rev <= 0x08)) 83952df6440SJean Delvare name = "lm87"; 840c7fa3737SJean Delvare else if (cid == 0x41 /* Analog Devices */ 841c7fa3737SJean Delvare && (rev & 0xf0) == 0x10) 84252df6440SJean Delvare name = "adm1024"; 84352df6440SJean Delvare else { 84452df6440SJean Delvare dev_dbg(&adapter->dev, "LM87 detection failed at 0x%02x\n", 8458652a264SJean Delvare client->addr); 846a888420aSJean Delvare return -ENODEV; 8478d5d45fbSJean Delvare } 8488d5d45fbSJean Delvare 84952df6440SJean Delvare strlcpy(info->type, name, I2C_NAME_SIZE); 850a888420aSJean Delvare 851a888420aSJean Delvare return 0; 852a888420aSJean Delvare } 853a888420aSJean Delvare 85400a0c905SJason Gunthorpe static void lm87_restore_config(void *arg) 855073f1e6cSGuenter Roeck { 85600a0c905SJason Gunthorpe struct i2c_client *client = arg; 85700a0c905SJason Gunthorpe struct lm87_data *data = i2c_get_clientdata(client); 858073f1e6cSGuenter Roeck 85900a0c905SJason Gunthorpe lm87_write_value(client, LM87_REG_CONFIG, data->config); 860073f1e6cSGuenter Roeck } 861073f1e6cSGuenter Roeck 86200a0c905SJason Gunthorpe static int lm87_init_client(struct i2c_client *client) 8638d5d45fbSJean Delvare { 8648d5d45fbSJean Delvare struct lm87_data *data = i2c_get_clientdata(client); 86500a0c905SJason Gunthorpe int rc; 86667043d18SMahoda Ratnayaka struct device_node *of_node = client->dev.of_node; 86767043d18SMahoda Ratnayaka u8 val = 0; 86867043d18SMahoda Ratnayaka struct regulator *vcc = NULL; 8698d5d45fbSJean Delvare 87067043d18SMahoda Ratnayaka if (of_node) { 87167043d18SMahoda Ratnayaka if (of_property_read_bool(of_node, "has-temp3")) 87267043d18SMahoda Ratnayaka val |= CHAN_TEMP3; 87367043d18SMahoda Ratnayaka if (of_property_read_bool(of_node, "has-in6")) 87467043d18SMahoda Ratnayaka val |= CHAN_NO_FAN(0); 87567043d18SMahoda Ratnayaka if (of_property_read_bool(of_node, "has-in7")) 87667043d18SMahoda Ratnayaka val |= CHAN_NO_FAN(1); 87767043d18SMahoda Ratnayaka vcc = devm_regulator_get_optional(&client->dev, "vcc"); 87867043d18SMahoda Ratnayaka if (!IS_ERR(vcc)) { 87967043d18SMahoda Ratnayaka if (regulator_get_voltage(vcc) == 5000000) 88067043d18SMahoda Ratnayaka val |= CHAN_VCC_5V; 88167043d18SMahoda Ratnayaka } 88267043d18SMahoda Ratnayaka data->channel = val; 88367043d18SMahoda Ratnayaka lm87_write_value(client, 88467043d18SMahoda Ratnayaka LM87_REG_CHANNEL_MODE, data->channel); 88567043d18SMahoda Ratnayaka } else if (dev_get_platdata(&client->dev)) { 886a8b3a3a5SJingoo Han data->channel = *(u8 *)dev_get_platdata(&client->dev); 88747064d64SBen Hutchings lm87_write_value(client, 88847064d64SBen Hutchings LM87_REG_CHANNEL_MODE, data->channel); 88947064d64SBen Hutchings } else { 8908d5d45fbSJean Delvare data->channel = lm87_read_value(client, LM87_REG_CHANNEL_MODE); 89147064d64SBen Hutchings } 892d2cac802SBen Hutchings data->config = lm87_read_value(client, LM87_REG_CONFIG) & 0x6F; 8938d5d45fbSJean Delvare 89400a0c905SJason Gunthorpe rc = devm_add_action(&client->dev, lm87_restore_config, client); 89500a0c905SJason Gunthorpe if (rc) 89600a0c905SJason Gunthorpe return rc; 89700a0c905SJason Gunthorpe 898d2cac802SBen Hutchings if (!(data->config & 0x01)) { 8998d5d45fbSJean Delvare int i; 9008d5d45fbSJean Delvare 9018d5d45fbSJean Delvare /* Limits are left uninitialized after power-up */ 9028d5d45fbSJean Delvare for (i = 1; i < 6; i++) { 9038d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_IN_MIN(i), 0x00); 9048d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_IN_MAX(i), 0xFF); 9058d5d45fbSJean Delvare } 9068d5d45fbSJean Delvare for (i = 0; i < 2; i++) { 9078d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_TEMP_HIGH[i], 0x7F); 9088d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_TEMP_LOW[i], 0x00); 9098d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_AIN_MIN(i), 0x00); 9108d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_AIN_MAX(i), 0xFF); 9118d5d45fbSJean Delvare } 9128d5d45fbSJean Delvare if (data->channel & CHAN_TEMP3) { 9138d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_TEMP_HIGH[2], 0x7F); 9148d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_TEMP_LOW[2], 0x00); 9158d5d45fbSJean Delvare } else { 9168d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_IN_MIN(0), 0x00); 9178d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_IN_MAX(0), 0xFF); 9188d5d45fbSJean Delvare } 9198d5d45fbSJean Delvare } 92049ae6cc8SBen Hutchings 92149ae6cc8SBen Hutchings /* Make sure Start is set and INT#_Clear is clear */ 922d2cac802SBen Hutchings if ((data->config & 0x09) != 0x01) 9238d5d45fbSJean Delvare lm87_write_value(client, LM87_REG_CONFIG, 924d2cac802SBen Hutchings (data->config & 0x77) | 0x01); 92500a0c905SJason Gunthorpe return 0; 9268d5d45fbSJean Delvare } 9278d5d45fbSJean Delvare 9288652a264SJean Delvare static int lm87_probe(struct i2c_client *client, const struct i2c_device_id *id) 9298652a264SJean Delvare { 9308652a264SJean Delvare struct lm87_data *data; 93100a0c905SJason Gunthorpe struct device *hwmon_dev; 9328652a264SJean Delvare int err; 93300a0c905SJason Gunthorpe unsigned int group_tail = 0; 9348652a264SJean Delvare 9355ff512b4SGuenter Roeck data = devm_kzalloc(&client->dev, sizeof(struct lm87_data), GFP_KERNEL); 9365ff512b4SGuenter Roeck if (!data) 9375ff512b4SGuenter Roeck return -ENOMEM; 9388652a264SJean Delvare 9398652a264SJean Delvare i2c_set_clientdata(client, data); 9408652a264SJean Delvare mutex_init(&data->update_lock); 9418652a264SJean Delvare 9428652a264SJean Delvare /* Initialize the LM87 chip */ 94300a0c905SJason Gunthorpe err = lm87_init_client(client); 94400a0c905SJason Gunthorpe if (err) 94500a0c905SJason Gunthorpe return err; 9468652a264SJean Delvare 9478652a264SJean Delvare data->in_scale[0] = 2500; 9488652a264SJean Delvare data->in_scale[1] = 2700; 9498652a264SJean Delvare data->in_scale[2] = (data->channel & CHAN_VCC_5V) ? 5000 : 3300; 9508652a264SJean Delvare data->in_scale[3] = 5000; 9518652a264SJean Delvare data->in_scale[4] = 12000; 9528652a264SJean Delvare data->in_scale[5] = 2700; 9538652a264SJean Delvare data->in_scale[6] = 1875; 9548652a264SJean Delvare data->in_scale[7] = 1875; 9558652a264SJean Delvare 95600a0c905SJason Gunthorpe /* 95700a0c905SJason Gunthorpe * Construct the list of attributes, the list depends on the 95800a0c905SJason Gunthorpe * configuration of the chip 95900a0c905SJason Gunthorpe */ 96000a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group; 96100a0c905SJason Gunthorpe if (data->channel & CHAN_NO_FAN(0)) 96200a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_in6; 96300a0c905SJason Gunthorpe else 96400a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_fan1; 9658652a264SJean Delvare 96600a0c905SJason Gunthorpe if (data->channel & CHAN_NO_FAN(1)) 96700a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_in7; 96800a0c905SJason Gunthorpe else 96900a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_fan2; 9708652a264SJean Delvare 97100a0c905SJason Gunthorpe if (data->channel & CHAN_TEMP3) 97200a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_temp3; 97300a0c905SJason Gunthorpe else 97400a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_in0_5; 9758652a264SJean Delvare 9768652a264SJean Delvare if (!(data->channel & CHAN_NO_VID)) { 9778652a264SJean Delvare data->vrm = vid_which_vrm(); 97800a0c905SJason Gunthorpe data->attr_groups[group_tail++] = &lm87_group_vid; 9798652a264SJean Delvare } 9808652a264SJean Delvare 98100a0c905SJason Gunthorpe hwmon_dev = devm_hwmon_device_register_with_groups( 98200a0c905SJason Gunthorpe &client->dev, client->name, client, data->attr_groups); 98300a0c905SJason Gunthorpe return PTR_ERR_OR_ZERO(hwmon_dev); 9848d5d45fbSJean Delvare } 9858d5d45fbSJean Delvare 9868652a264SJean Delvare /* 9878652a264SJean Delvare * Driver data (common to all clients) 9888652a264SJean Delvare */ 9898d5d45fbSJean Delvare 9908652a264SJean Delvare static const struct i2c_device_id lm87_id[] = { 9910439bf71SJavier Martinez Canillas { "lm87", 0 }, 9920439bf71SJavier Martinez Canillas { "adm1024", 0 }, 9938652a264SJean Delvare { } 9948652a264SJean Delvare }; 9958652a264SJean Delvare MODULE_DEVICE_TABLE(i2c, lm87_id); 9968d5d45fbSJean Delvare 997a02c24a3SJavier Martinez Canillas static const struct of_device_id lm87_of_match[] = { 998a02c24a3SJavier Martinez Canillas { .compatible = "ti,lm87" }, 999a02c24a3SJavier Martinez Canillas { .compatible = "adi,adm1024" }, 1000a02c24a3SJavier Martinez Canillas { }, 1001a02c24a3SJavier Martinez Canillas }; 1002a02c24a3SJavier Martinez Canillas MODULE_DEVICE_TABLE(of, lm87_of_match); 1003a02c24a3SJavier Martinez Canillas 10048652a264SJean Delvare static struct i2c_driver lm87_driver = { 10058652a264SJean Delvare .class = I2C_CLASS_HWMON, 10068652a264SJean Delvare .driver = { 10078652a264SJean Delvare .name = "lm87", 1008a02c24a3SJavier Martinez Canillas .of_match_table = lm87_of_match, 10098652a264SJean Delvare }, 10108652a264SJean Delvare .probe = lm87_probe, 10118652a264SJean Delvare .id_table = lm87_id, 10128652a264SJean Delvare .detect = lm87_detect, 10138652a264SJean Delvare .address_list = normal_i2c, 10148652a264SJean Delvare }; 10158d5d45fbSJean Delvare 1016f0967eeaSAxel Lin module_i2c_driver(lm87_driver); 10178d5d45fbSJean Delvare 10187c81c60fSJean Delvare MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de> and others"); 10198d5d45fbSJean Delvare MODULE_DESCRIPTION("LM87 driver"); 10208d5d45fbSJean Delvare MODULE_LICENSE("GPL"); 1021