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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-09 15:23:54 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-09 15:23:54 -0400
commit07f405541892bd9bab4cca6c12499091ef4dd556 (patch)
tree54f85f9314716275e46882c47cfe75541371bc22
parent9283dfed51b223eddf68bdf91c5cddc4a9abbdbe (diff)
parent5e5cddbc3f2936c9fefbae64633c522e242c350d (diff)
Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: hwmon: (abituguru3) Enable DMI probing feature on Abit AT8 32X hwmon: (abituguru3) Enable reading from AUX3 fan on Abit AT8 32X hwmon: (adt7473) Fix some bogosity in documentation file hwmon: Define sysfs interface for energy consumption register hwmon: (it87) Prevent power-off on Shuttle SN68PT eeepc-laptop: Fix hwmon interface
-rw-r--r--Documentation/hwmon/adt747318
-rw-r--r--Documentation/hwmon/sysfs-interface12
-rw-r--r--drivers/hwmon/abituguru3.c3
-rw-r--r--drivers/hwmon/it87.c70
-rw-r--r--drivers/misc/eeepc-laptop.c16
5 files changed, 83 insertions, 36 deletions
diff --git a/Documentation/hwmon/adt7473 b/Documentation/hwmon/adt7473
index 2126de34c711..1cbf671822e2 100644
--- a/Documentation/hwmon/adt7473
+++ b/Documentation/hwmon/adt7473
@@ -14,14 +14,14 @@ Description
14 14
15This driver implements support for the Analog Devices ADT7473 chip family. 15This driver implements support for the Analog Devices ADT7473 chip family.
16 16
17The LM85 uses the 2-wire interface compatible with the SMBUS 2.0 17The ADT7473 uses the 2-wire interface compatible with the SMBUS 2.0
18specification. Using an analog to digital converter it measures three (3) 18specification. Using an analog to digital converter it measures three (3)
19temperatures and two (2) voltages. It has three (3) 16-bit counters for 19temperatures and two (2) voltages. It has four (4) 16-bit counters for
20measuring fan speed. There are three (3) PWM outputs that can be used 20measuring fan speed. There are three (3) PWM outputs that can be used
21to control fan speed. 21to control fan speed.
22 22
23A sophisticated control system for the PWM outputs is designed into the 23A sophisticated control system for the PWM outputs is designed into the
24LM85 that allows fan speed to be adjusted automatically based on any of the 24ADT7473 that allows fan speed to be adjusted automatically based on any of the
25three temperature sensors. Each PWM output is individually adjustable and 25three temperature sensors. Each PWM output is individually adjustable and
26programmable. Once configured, the ADT7473 will adjust the PWM outputs in 26programmable. Once configured, the ADT7473 will adjust the PWM outputs in
27response to the measured temperatures without further host intervention. 27response to the measured temperatures without further host intervention.
@@ -46,14 +46,6 @@ from the raw value to get the temperature value.
46The Analog Devices datasheet is very detailed and describes a procedure for 46The Analog Devices datasheet is very detailed and describes a procedure for
47determining an optimal configuration for the automatic PWM control. 47determining an optimal configuration for the automatic PWM control.
48 48
49Hardware Configurations
50-----------------------
51
52The ADT7473 chips have an optional SMBALERT output that can be used to
53signal the chipset in case a limit is exceeded or the temperature sensors
54fail. Individual sensor interrupts can be masked so they won't trigger
55SMBALERT. The SMBALERT output if configured replaces the PWM2 function.
56
57Configuration Notes 49Configuration Notes
58------------------- 50-------------------
59 51
@@ -61,8 +53,8 @@ Besides standard interfaces driver adds the following:
61 53
62* PWM Control 54* PWM Control
63 55
64* pwm#_auto_point1_pwm and pwm#_auto_point1_temp and 56* pwm#_auto_point1_pwm and temp#_auto_point1_temp and
65* pwm#_auto_point2_pwm and pwm#_auto_point2_temp - 57* pwm#_auto_point2_pwm and temp#_auto_point2_temp -
66 58
67point1: Set the pwm speed at a lower temperature bound. 59point1: Set the pwm speed at a lower temperature bound.
68point2: Set the pwm speed at a higher temperature bound. 60point2: Set the pwm speed at a higher temperature bound.
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 2d845730d4e0..6dbfd5efd991 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -329,6 +329,10 @@ power[1-*]_average Average power use
329 Unit: microWatt 329 Unit: microWatt
330 RO 330 RO
331 331
332power[1-*]_average_interval Power use averaging interval
333 Unit: milliseconds
334 RW
335
332power[1-*]_average_highest Historical average maximum power use 336power[1-*]_average_highest Historical average maximum power use
333 Unit: microWatt 337 Unit: microWatt
334 RO 338 RO
@@ -354,6 +358,14 @@ power[1-*]_reset_history Reset input_highest, input_lowest,
354 WO 358 WO
355 359
356********** 360**********
361* Energy *
362**********
363
364energy[1-*]_input Cumulative energy use
365 Unit: microJoule
366 RO
367
368**********
357* Alarms * 369* Alarms *
358********** 370**********
359 371
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index d568c65c1370..d9e7a49d6cbf 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -279,7 +279,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
279 { "OTES1 Fan", 36, 2, 60, 1, 0 }, 279 { "OTES1 Fan", 36, 2, 60, 1, 0 },
280 { NULL, 0, 0, 0, 0, 0 } } 280 { NULL, 0, 0, 0, 0, 0 } }
281 }, 281 },
282 { 0x0011, NULL /* Abit AT8 32X, need DMI string */, { 282 { 0x0011, "AT8 32X(ATI RD580-ULI M1575)", {
283 { "CPU Core", 0, 0, 10, 1, 0 }, 283 { "CPU Core", 0, 0, 10, 1, 0 },
284 { "DDR", 1, 0, 20, 1, 0 }, 284 { "DDR", 1, 0, 20, 1, 0 },
285 { "DDR VTT", 2, 0, 10, 1, 0 }, 285 { "DDR VTT", 2, 0, 10, 1, 0 },
@@ -303,6 +303,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
303 { "SYS Fan", 34, 2, 60, 1, 0 }, 303 { "SYS Fan", 34, 2, 60, 1, 0 },
304 { "AUX1 Fan", 35, 2, 60, 1, 0 }, 304 { "AUX1 Fan", 35, 2, 60, 1, 0 },
305 { "AUX2 Fan", 36, 2, 60, 1, 0 }, 305 { "AUX2 Fan", 36, 2, 60, 1, 0 },
306 { "AUX3 Fan", 37, 2, 60, 1, 0 },
306 { NULL, 0, 0, 0, 0, 0 } } 307 { NULL, 0, 0, 0, 0, 0 } }
307 }, 308 },
308 { 0x0012, NULL /* Abit AN8 32X, need DMI string */, { 309 { 0x0012, NULL /* Abit AN8 32X, need DMI string */, {
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index f1133081cc42..d793cc011990 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -46,6 +46,8 @@
46#include <linux/err.h> 46#include <linux/err.h>
47#include <linux/mutex.h> 47#include <linux/mutex.h>
48#include <linux/sysfs.h> 48#include <linux/sysfs.h>
49#include <linux/string.h>
50#include <linux/dmi.h>
49#include <asm/io.h> 51#include <asm/io.h>
50 52
51#define DRVNAME "it87" 53#define DRVNAME "it87"
@@ -236,6 +238,8 @@ struct it87_sio_data {
236 /* Values read from Super-I/O config space */ 238 /* Values read from Super-I/O config space */
237 u8 revision; 239 u8 revision;
238 u8 vid_value; 240 u8 vid_value;
241 /* Values set based on DMI strings */
242 u8 skip_pwm;
239}; 243};
240 244
241/* For each registered chip, we need to keep some data in memory. 245/* For each registered chip, we need to keep some data in memory.
@@ -964,6 +968,7 @@ static int __init it87_find(unsigned short *address,
964{ 968{
965 int err = -ENODEV; 969 int err = -ENODEV;
966 u16 chip_type; 970 u16 chip_type;
971 const char *board_vendor, *board_name;
967 972
968 superio_enter(); 973 superio_enter();
969 chip_type = force_id ? force_id : superio_inw(DEVID); 974 chip_type = force_id ? force_id : superio_inw(DEVID);
@@ -1022,6 +1027,24 @@ static int __init it87_find(unsigned short *address,
1022 pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); 1027 pr_info("it87: in7 is VCCH (+5V Stand-By)\n");
1023 } 1028 }
1024 1029
1030 /* Disable specific features based on DMI strings */
1031 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1032 board_name = dmi_get_system_info(DMI_BOARD_NAME);
1033 if (board_vendor && board_name) {
1034 if (strcmp(board_vendor, "nVIDIA") == 0
1035 && strcmp(board_name, "FN68PT") == 0) {
1036 /* On the Shuttle SN68PT, FAN_CTL2 is apparently not
1037 connected to a fan, but to something else. One user
1038 has reported instant system power-off when changing
1039 the PWM2 duty cycle, so we disable it.
1040 I use the board name string as the trigger in case
1041 the same board is ever used in other systems. */
1042 pr_info("it87: Disabling pwm2 due to "
1043 "hardware constraints\n");
1044 sio_data->skip_pwm = (1 << 1);
1045 }
1046 }
1047
1025exit: 1048exit:
1026 superio_exit(); 1049 superio_exit();
1027 return err; 1050 return err;
@@ -1168,25 +1191,33 @@ static int __devinit it87_probe(struct platform_device *pdev)
1168 } 1191 }
1169 1192
1170 if (enable_pwm_interface) { 1193 if (enable_pwm_interface) {
1171 if ((err = device_create_file(dev, 1194 if (!(sio_data->skip_pwm & (1 << 0))) {
1172 &sensor_dev_attr_pwm1_enable.dev_attr)) 1195 if ((err = device_create_file(dev,
1173 || (err = device_create_file(dev, 1196 &sensor_dev_attr_pwm1_enable.dev_attr))
1174 &sensor_dev_attr_pwm2_enable.dev_attr)) 1197 || (err = device_create_file(dev,
1175 || (err = device_create_file(dev, 1198 &sensor_dev_attr_pwm1.dev_attr))
1176 &sensor_dev_attr_pwm3_enable.dev_attr)) 1199 || (err = device_create_file(dev,
1177 || (err = device_create_file(dev, 1200 &dev_attr_pwm1_freq)))
1178 &sensor_dev_attr_pwm1.dev_attr)) 1201 goto ERROR4;
1179 || (err = device_create_file(dev, 1202 }
1180 &sensor_dev_attr_pwm2.dev_attr)) 1203 if (!(sio_data->skip_pwm & (1 << 1))) {
1181 || (err = device_create_file(dev, 1204 if ((err = device_create_file(dev,
1182 &sensor_dev_attr_pwm3.dev_attr)) 1205 &sensor_dev_attr_pwm2_enable.dev_attr))
1183 || (err = device_create_file(dev, 1206 || (err = device_create_file(dev,
1184 &dev_attr_pwm1_freq)) 1207 &sensor_dev_attr_pwm2.dev_attr))
1185 || (err = device_create_file(dev, 1208 || (err = device_create_file(dev,
1186 &dev_attr_pwm2_freq)) 1209 &dev_attr_pwm2_freq)))
1187 || (err = device_create_file(dev, 1210 goto ERROR4;
1188 &dev_attr_pwm3_freq))) 1211 }
1189 goto ERROR4; 1212 if (!(sio_data->skip_pwm & (1 << 2))) {
1213 if ((err = device_create_file(dev,
1214 &sensor_dev_attr_pwm3_enable.dev_attr))
1215 || (err = device_create_file(dev,
1216 &sensor_dev_attr_pwm3.dev_attr))
1217 || (err = device_create_file(dev,
1218 &dev_attr_pwm3_freq)))
1219 goto ERROR4;
1220 }
1190 } 1221 }
1191 1222
1192 if (data->type == it8712 || data->type == it8716 1223 if (data->type == it8712 || data->type == it8716
@@ -1546,6 +1577,7 @@ static int __init sm_it87_init(void)
1546 unsigned short isa_address=0; 1577 unsigned short isa_address=0;
1547 struct it87_sio_data sio_data; 1578 struct it87_sio_data sio_data;
1548 1579
1580 memset(&sio_data, 0, sizeof(struct it87_sio_data));
1549 err = it87_find(&isa_address, &sio_data); 1581 err = it87_find(&isa_address, &sio_data);
1550 if (err) 1582 if (err)
1551 return err; 1583 return err;
diff --git a/drivers/misc/eeepc-laptop.c b/drivers/misc/eeepc-laptop.c
index facdb9893c84..1ee8501e90f1 100644
--- a/drivers/misc/eeepc-laptop.c
+++ b/drivers/misc/eeepc-laptop.c
@@ -450,12 +450,14 @@ static int eeepc_get_fan_pwm(void)
450 int value = 0; 450 int value = 0;
451 451
452 read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value); 452 read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value);
453 value = value * 255 / 100;
453 return (value); 454 return (value);
454} 455}
455 456
456static void eeepc_set_fan_pwm(int value) 457static void eeepc_set_fan_pwm(int value)
457{ 458{
458 value = SENSORS_LIMIT(value, 0, 100); 459 value = SENSORS_LIMIT(value, 0, 255);
460 value = value * 100 / 255;
459 ec_write(EEEPC_EC_SC02, value); 461 ec_write(EEEPC_EC_SC02, value);
460} 462}
461 463
@@ -520,15 +522,23 @@ static ssize_t show_sys_hwmon(int (*get)(void), char *buf)
520 static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); 522 static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0);
521 523
522EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL); 524EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL);
523EEEPC_CREATE_SENSOR_ATTR(fan1_pwm, S_IRUGO | S_IWUSR, 525EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR,
524 eeepc_get_fan_pwm, eeepc_set_fan_pwm); 526 eeepc_get_fan_pwm, eeepc_set_fan_pwm);
525EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, 527EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
526 eeepc_get_fan_ctrl, eeepc_set_fan_ctrl); 528 eeepc_get_fan_ctrl, eeepc_set_fan_ctrl);
527 529
530static ssize_t
531show_name(struct device *dev, struct device_attribute *attr, char *buf)
532{
533 return sprintf(buf, "eeepc\n");
534}
535static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
536
528static struct attribute *hwmon_attributes[] = { 537static struct attribute *hwmon_attributes[] = {
529 &sensor_dev_attr_fan1_pwm.dev_attr.attr, 538 &sensor_dev_attr_pwm1.dev_attr.attr,
530 &sensor_dev_attr_fan1_input.dev_attr.attr, 539 &sensor_dev_attr_fan1_input.dev_attr.attr,
531 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 540 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
541 &sensor_dev_attr_name.dev_attr.attr,
532 NULL 542 NULL
533}; 543};
534 544