2 * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives
3 * Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
4 * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
5 * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
6 * Copyright (C) 2009 Jean Delvare <jdelvare@suse.de>
8 * Derived from the lm83 driver by Jean Delvare
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/module.h>
16 #include <linux/of_device.h>
17 #include <linux/init.h>
18 #include <linux/slab.h>
19 #include <linux/i2c.h>
20 #include <linux/hwmon.h>
21 #include <linux/hwmon-sysfs.h>
22 #include <linux/hwmon-vid.h>
23 #include <linux/err.h>
24 #include <linux/jiffies.h>
25 #include <linux/util_macros.h>
27 /* Indexes for the sysfs hooks */
39 * These are unique identifiers for the sysfs functions - unlike the
40 * numbers above, these are not also indexes into an array
46 /* 7475 Common Registers */
48 #define REG_DEVREV2 0x12 /* ADT7490 only */
50 #define REG_VTT 0x1E /* ADT7490 only */
51 #define REG_EXTEND3 0x1F /* ADT7490 only */
53 #define REG_VOLTAGE_BASE 0x20
54 #define REG_TEMP_BASE 0x25
55 #define REG_TACH_BASE 0x28
56 #define REG_PWM_BASE 0x30
57 #define REG_PWM_MAX_BASE 0x38
59 #define REG_DEVID 0x3D
60 #define REG_VENDID 0x3E
61 #define REG_DEVID2 0x3F
63 #define REG_CONFIG1 0x40
65 #define REG_STATUS1 0x41
66 #define REG_STATUS2 0x42
68 #define REG_VID 0x43 /* ADT7476 only */
70 #define REG_VOLTAGE_MIN_BASE 0x44
71 #define REG_VOLTAGE_MAX_BASE 0x45
73 #define REG_TEMP_MIN_BASE 0x4E
74 #define REG_TEMP_MAX_BASE 0x4F
76 #define REG_TACH_MIN_BASE 0x54
78 #define REG_PWM_CONFIG_BASE 0x5C
80 #define REG_TEMP_TRANGE_BASE 0x5F
82 #define REG_ENHANCE_ACOUSTICS1 0x62
83 #define REG_ENHANCE_ACOUSTICS2 0x63
85 #define REG_PWM_MIN_BASE 0x64
87 #define REG_TEMP_TMIN_BASE 0x67
88 #define REG_TEMP_THERM_BASE 0x6A
90 #define REG_REMOTE1_HYSTERSIS 0x6D
91 #define REG_REMOTE2_HYSTERSIS 0x6E
93 #define REG_TEMP_OFFSET_BASE 0x70
95 #define REG_CONFIG2 0x73
97 #define REG_EXTEND1 0x76
98 #define REG_EXTEND2 0x77
100 #define REG_CONFIG3 0x78
101 #define REG_CONFIG5 0x7C
102 #define REG_CONFIG4 0x7D
104 #define REG_STATUS4 0x81 /* ADT7490 only */
106 #define REG_VTT_MIN 0x84 /* ADT7490 only */
107 #define REG_VTT_MAX 0x86 /* ADT7490 only */
109 #define VID_VIDSEL 0x80 /* ADT7476 only */
111 #define CONFIG2_ATTN 0x20
113 #define CONFIG3_SMBALERT 0x01
114 #define CONFIG3_THERM 0x02
116 #define CONFIG4_PINFUNC 0x03
117 #define CONFIG4_MAXDUTY 0x08
118 #define CONFIG4_ATTN_IN10 0x30
119 #define CONFIG4_ATTN_IN43 0xC0
121 #define CONFIG5_TWOSCOMP 0x01
122 #define CONFIG5_TEMPOFFSET 0x02
123 #define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */
125 /* ADT7475 Settings */
127 #define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
128 #define ADT7475_TEMP_COUNT 3
129 #define ADT7475_TACH_COUNT 4
130 #define ADT7475_PWM_COUNT 3
132 /* Macro to read the registers */
134 #define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg))
136 /* Macros to easily index the registers */
138 #define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2))
139 #define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2))
141 #define PWM_REG(idx) (REG_PWM_BASE + (idx))
142 #define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx))
143 #define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx))
144 #define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx))
146 #define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx))
147 #define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2))
148 #define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2))
150 #define TEMP_REG(idx) (REG_TEMP_BASE + (idx))
151 #define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2))
152 #define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2))
153 #define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx))
154 #define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx))
155 #define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
156 #define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
158 static const unsigned short normal_i2c
[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END
};
160 enum chips
{ adt7473
, adt7475
, adt7476
, adt7490
};
162 static const struct i2c_device_id adt7475_id
[] = {
163 { "adt7473", adt7473
},
164 { "adt7475", adt7475
},
165 { "adt7476", adt7476
},
166 { "adt7490", adt7490
},
169 MODULE_DEVICE_TABLE(i2c
, adt7475_id
);
171 static const struct of_device_id adt7475_of_match
[] = {
173 .compatible
= "adi,adt7473",
174 .data
= (void *)adt7473
177 .compatible
= "adi,adt7475",
178 .data
= (void *)adt7475
181 .compatible
= "adi,adt7476",
182 .data
= (void *)adt7476
185 .compatible
= "adi,adt7490",
186 .data
= (void *)adt7490
190 MODULE_DEVICE_TABLE(of
, adt7475_of_match
);
192 struct adt7475_data
{
193 struct device
*hwmon_dev
;
196 unsigned long measure_updated
;
197 unsigned long limits_updated
;
203 u8 bypass_attn
; /* Bypass voltage attenuator */
221 static struct i2c_driver adt7475_driver
;
222 static struct adt7475_data
*adt7475_update_device(struct device
*dev
);
223 static void adt7475_read_hystersis(struct i2c_client
*client
);
224 static void adt7475_read_pwm(struct i2c_client
*client
, int index
);
226 /* Given a temp value, convert it to register value */
228 static inline u16
temp2reg(struct adt7475_data
*data
, long val
)
232 if (!(data
->config5
& CONFIG5_TWOSCOMP
)) {
233 val
= clamp_val(val
, -64000, 191000);
234 ret
= (val
+ 64500) / 1000;
236 val
= clamp_val(val
, -128000, 127000);
238 ret
= (256500 + val
) / 1000;
240 ret
= (val
+ 500) / 1000;
246 /* Given a register value, convert it to a real temp value */
248 static inline int reg2temp(struct adt7475_data
*data
, u16 reg
)
250 if (data
->config5
& CONFIG5_TWOSCOMP
) {
252 return (reg
- 1024) * 250;
256 return (reg
- 256) * 250;
259 static inline int tach2rpm(u16 tach
)
261 if (tach
== 0 || tach
== 0xFFFF)
264 return (90000 * 60) / tach
;
267 static inline u16
rpm2tach(unsigned long rpm
)
272 return clamp_val((90000 * 60) / rpm
, 1, 0xFFFF);
275 /* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
276 static const int adt7473_in_scaling
[ADT7475_VOLTAGE_COUNT
+ 1][2] = {
277 { 45, 94 }, /* +2.5V */
278 { 175, 525 }, /* Vccp */
279 { 68, 71 }, /* Vcc */
280 { 93, 47 }, /* +5V */
281 { 120, 20 }, /* +12V */
282 { 45, 45 }, /* Vtt */
285 static inline int reg2volt(int channel
, u16 reg
, u8 bypass_attn
)
287 const int *r
= adt7473_in_scaling
[channel
];
289 if (bypass_attn
& (1 << channel
))
290 return DIV_ROUND_CLOSEST(reg
* 2250, 1024);
291 return DIV_ROUND_CLOSEST(reg
* (r
[0] + r
[1]) * 2250, r
[1] * 1024);
294 static inline u16
volt2reg(int channel
, long volt
, u8 bypass_attn
)
296 const int *r
= adt7473_in_scaling
[channel
];
299 if (bypass_attn
& (1 << channel
))
300 reg
= DIV_ROUND_CLOSEST(volt
* 1024, 2250);
302 reg
= DIV_ROUND_CLOSEST(volt
* r
[1] * 1024,
303 (r
[0] + r
[1]) * 2250);
304 return clamp_val(reg
, 0, 1023) & (0xff << 2);
307 static int adt7475_read_word(struct i2c_client
*client
, int reg
)
311 val1
= i2c_smbus_read_byte_data(client
, reg
);
314 val2
= i2c_smbus_read_byte_data(client
, reg
+ 1);
318 return val1
| (val2
<< 8);
321 static void adt7475_write_word(struct i2c_client
*client
, int reg
, u16 val
)
323 i2c_smbus_write_byte_data(client
, reg
+ 1, val
>> 8);
324 i2c_smbus_write_byte_data(client
, reg
, val
& 0xFF);
327 static ssize_t
show_voltage(struct device
*dev
, struct device_attribute
*attr
,
330 struct adt7475_data
*data
= adt7475_update_device(dev
);
331 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
336 return sprintf(buf
, "%d\n",
337 (data
->alarms
>> sattr
->index
) & 1);
339 val
= data
->voltage
[sattr
->nr
][sattr
->index
];
340 return sprintf(buf
, "%d\n",
341 reg2volt(sattr
->index
, val
, data
->bypass_attn
));
345 static ssize_t
set_voltage(struct device
*dev
, struct device_attribute
*attr
,
346 const char *buf
, size_t count
)
349 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
350 struct i2c_client
*client
= to_i2c_client(dev
);
351 struct adt7475_data
*data
= i2c_get_clientdata(client
);
355 if (kstrtol(buf
, 10, &val
))
358 mutex_lock(&data
->lock
);
360 data
->voltage
[sattr
->nr
][sattr
->index
] =
361 volt2reg(sattr
->index
, val
, data
->bypass_attn
);
363 if (sattr
->index
< ADT7475_VOLTAGE_COUNT
) {
364 if (sattr
->nr
== MIN
)
365 reg
= VOLTAGE_MIN_REG(sattr
->index
);
367 reg
= VOLTAGE_MAX_REG(sattr
->index
);
369 if (sattr
->nr
== MIN
)
375 i2c_smbus_write_byte_data(client
, reg
,
376 data
->voltage
[sattr
->nr
][sattr
->index
] >> 2);
377 mutex_unlock(&data
->lock
);
382 static ssize_t
show_temp(struct device
*dev
, struct device_attribute
*attr
,
385 struct adt7475_data
*data
= adt7475_update_device(dev
);
386 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
391 mutex_lock(&data
->lock
);
392 out
= data
->temp
[sattr
->nr
][sattr
->index
];
393 if (sattr
->index
!= 1)
394 out
= (out
>> 4) & 0xF;
398 * Show the value as an absolute number tied to
401 out
= reg2temp(data
, data
->temp
[THERM
][sattr
->index
]) -
403 mutex_unlock(&data
->lock
);
408 * Offset is always 2's complement, regardless of the
411 mutex_lock(&data
->lock
);
412 out
= (s8
)data
->temp
[sattr
->nr
][sattr
->index
];
413 if (data
->config5
& CONFIG5_TEMPOFFSET
)
417 mutex_unlock(&data
->lock
);
421 out
= (data
->alarms
>> (sattr
->index
+ 4)) & 1;
425 /* Note - only for remote1 and remote2 */
426 out
= !!(data
->alarms
& (sattr
->index
? 0x8000 : 0x4000));
430 /* All other temp values are in the configured format */
431 out
= reg2temp(data
, data
->temp
[sattr
->nr
][sattr
->index
]);
434 return sprintf(buf
, "%d\n", out
);
437 static ssize_t
set_temp(struct device
*dev
, struct device_attribute
*attr
,
438 const char *buf
, size_t count
)
440 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
441 struct i2c_client
*client
= to_i2c_client(dev
);
442 struct adt7475_data
*data
= i2c_get_clientdata(client
);
443 unsigned char reg
= 0;
448 if (kstrtol(buf
, 10, &val
))
451 mutex_lock(&data
->lock
);
453 /* We need the config register in all cases for temp <-> reg conv. */
454 data
->config5
= adt7475_read(REG_CONFIG5
);
458 if (data
->config5
& CONFIG5_TEMPOFFSET
) {
459 val
= clamp_val(val
, -63000, 127000);
460 out
= data
->temp
[OFFSET
][sattr
->index
] = val
/ 1000;
462 val
= clamp_val(val
, -63000, 64000);
463 out
= data
->temp
[OFFSET
][sattr
->index
] = val
/ 500;
469 * The value will be given as an absolute value, turn it
470 * into an offset based on THERM
473 /* Read fresh THERM and HYSTERSIS values from the chip */
474 data
->temp
[THERM
][sattr
->index
] =
475 adt7475_read(TEMP_THERM_REG(sattr
->index
)) << 2;
476 adt7475_read_hystersis(client
);
478 temp
= reg2temp(data
, data
->temp
[THERM
][sattr
->index
]);
479 val
= clamp_val(val
, temp
- 15000, temp
);
480 val
= (temp
- val
) / 1000;
482 if (sattr
->index
!= 1) {
483 data
->temp
[HYSTERSIS
][sattr
->index
] &= 0xF0;
484 data
->temp
[HYSTERSIS
][sattr
->index
] |= (val
& 0xF) << 4;
486 data
->temp
[HYSTERSIS
][sattr
->index
] &= 0x0F;
487 data
->temp
[HYSTERSIS
][sattr
->index
] |= (val
& 0xF);
490 out
= data
->temp
[HYSTERSIS
][sattr
->index
];
494 data
->temp
[sattr
->nr
][sattr
->index
] = temp2reg(data
, val
);
497 * We maintain an extra 2 digits of precision for simplicity
498 * - shift those back off before writing the value
500 out
= (u8
) (data
->temp
[sattr
->nr
][sattr
->index
] >> 2);
505 reg
= TEMP_MIN_REG(sattr
->index
);
508 reg
= TEMP_MAX_REG(sattr
->index
);
511 reg
= TEMP_OFFSET_REG(sattr
->index
);
514 reg
= TEMP_TMIN_REG(sattr
->index
);
517 reg
= TEMP_THERM_REG(sattr
->index
);
520 if (sattr
->index
!= 2)
521 reg
= REG_REMOTE1_HYSTERSIS
;
523 reg
= REG_REMOTE2_HYSTERSIS
;
528 i2c_smbus_write_byte_data(client
, reg
, out
);
530 mutex_unlock(&data
->lock
);
534 /* Assuming CONFIG6[SLOW] is 0 */
535 static const int ad7475_st_map
[] = {
536 37500, 18800, 12500, 7500, 4700, 3100, 1600, 800,
539 static ssize_t
show_temp_st(struct device
*dev
, struct device_attribute
*attr
,
542 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
543 struct i2c_client
*client
= to_i2c_client(dev
);
544 struct adt7475_data
*data
= i2c_get_clientdata(client
);
547 switch (sattr
->index
) {
549 val
= data
->enh_acoustics
[0] & 0xf;
552 val
= (data
->enh_acoustics
[1] >> 4) & 0xf;
556 val
= data
->enh_acoustics
[1] & 0xf;
561 return sprintf(buf
, "%d\n", ad7475_st_map
[val
& 0x7]);
563 return sprintf(buf
, "0\n");
566 static ssize_t
set_temp_st(struct device
*dev
, struct device_attribute
*attr
,
567 const char *buf
, size_t count
)
569 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
570 struct i2c_client
*client
= to_i2c_client(dev
);
571 struct adt7475_data
*data
= i2c_get_clientdata(client
);
576 if (kstrtoul(buf
, 10, &val
))
579 switch (sattr
->index
) {
581 reg
= REG_ENHANCE_ACOUSTICS1
;
586 reg
= REG_ENHANCE_ACOUSTICS2
;
592 reg
= REG_ENHANCE_ACOUSTICS2
;
599 val
= find_closest_descending(val
, ad7475_st_map
,
600 ARRAY_SIZE(ad7475_st_map
));
604 mutex_lock(&data
->lock
);
606 data
->enh_acoustics
[idx
] &= ~(0xf << shift
);
607 data
->enh_acoustics
[idx
] |= (val
<< shift
);
609 i2c_smbus_write_byte_data(client
, reg
, data
->enh_acoustics
[idx
]);
611 mutex_unlock(&data
->lock
);
617 * Table of autorange values - the user will write the value in millidegrees,
618 * and we'll convert it
620 static const int autorange_table
[] = {
621 2000, 2500, 3330, 4000, 5000, 6670, 8000,
622 10000, 13330, 16000, 20000, 26670, 32000, 40000,
626 static ssize_t
show_point2(struct device
*dev
, struct device_attribute
*attr
,
629 struct adt7475_data
*data
= adt7475_update_device(dev
);
630 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
633 mutex_lock(&data
->lock
);
634 out
= (data
->range
[sattr
->index
] >> 4) & 0x0F;
635 val
= reg2temp(data
, data
->temp
[AUTOMIN
][sattr
->index
]);
636 mutex_unlock(&data
->lock
);
638 return sprintf(buf
, "%d\n", val
+ autorange_table
[out
]);
641 static ssize_t
set_point2(struct device
*dev
, struct device_attribute
*attr
,
642 const char *buf
, size_t count
)
644 struct i2c_client
*client
= to_i2c_client(dev
);
645 struct adt7475_data
*data
= i2c_get_clientdata(client
);
646 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
650 if (kstrtol(buf
, 10, &val
))
653 mutex_lock(&data
->lock
);
655 /* Get a fresh copy of the needed registers */
656 data
->config5
= adt7475_read(REG_CONFIG5
);
657 data
->temp
[AUTOMIN
][sattr
->index
] =
658 adt7475_read(TEMP_TMIN_REG(sattr
->index
)) << 2;
659 data
->range
[sattr
->index
] =
660 adt7475_read(TEMP_TRANGE_REG(sattr
->index
));
663 * The user will write an absolute value, so subtract the start point
664 * to figure the range
666 temp
= reg2temp(data
, data
->temp
[AUTOMIN
][sattr
->index
]);
667 val
= clamp_val(val
, temp
+ autorange_table
[0],
668 temp
+ autorange_table
[ARRAY_SIZE(autorange_table
) - 1]);
671 /* Find the nearest table entry to what the user wrote */
672 val
= find_closest(val
, autorange_table
, ARRAY_SIZE(autorange_table
));
674 data
->range
[sattr
->index
] &= ~0xF0;
675 data
->range
[sattr
->index
] |= val
<< 4;
677 i2c_smbus_write_byte_data(client
, TEMP_TRANGE_REG(sattr
->index
),
678 data
->range
[sattr
->index
]);
680 mutex_unlock(&data
->lock
);
684 static ssize_t
show_tach(struct device
*dev
, struct device_attribute
*attr
,
687 struct adt7475_data
*data
= adt7475_update_device(dev
);
688 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
691 if (sattr
->nr
== ALARM
)
692 out
= (data
->alarms
>> (sattr
->index
+ 10)) & 1;
694 out
= tach2rpm(data
->tach
[sattr
->nr
][sattr
->index
]);
696 return sprintf(buf
, "%d\n", out
);
699 static ssize_t
set_tach(struct device
*dev
, struct device_attribute
*attr
,
700 const char *buf
, size_t count
)
703 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
704 struct i2c_client
*client
= to_i2c_client(dev
);
705 struct adt7475_data
*data
= i2c_get_clientdata(client
);
708 if (kstrtoul(buf
, 10, &val
))
711 mutex_lock(&data
->lock
);
713 data
->tach
[MIN
][sattr
->index
] = rpm2tach(val
);
715 adt7475_write_word(client
, TACH_MIN_REG(sattr
->index
),
716 data
->tach
[MIN
][sattr
->index
]);
718 mutex_unlock(&data
->lock
);
722 static ssize_t
show_pwm(struct device
*dev
, struct device_attribute
*attr
,
725 struct adt7475_data
*data
= adt7475_update_device(dev
);
726 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
728 return sprintf(buf
, "%d\n", data
->pwm
[sattr
->nr
][sattr
->index
]);
731 static ssize_t
show_pwmchan(struct device
*dev
, struct device_attribute
*attr
,
734 struct adt7475_data
*data
= adt7475_update_device(dev
);
735 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
737 return sprintf(buf
, "%d\n", data
->pwmchan
[sattr
->index
]);
740 static ssize_t
show_pwmctrl(struct device
*dev
, struct device_attribute
*attr
,
743 struct adt7475_data
*data
= adt7475_update_device(dev
);
744 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
746 return sprintf(buf
, "%d\n", data
->pwmctl
[sattr
->index
]);
749 static ssize_t
set_pwm(struct device
*dev
, struct device_attribute
*attr
,
750 const char *buf
, size_t count
)
753 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
754 struct i2c_client
*client
= to_i2c_client(dev
);
755 struct adt7475_data
*data
= i2c_get_clientdata(client
);
756 unsigned char reg
= 0;
759 if (kstrtol(buf
, 10, &val
))
762 mutex_lock(&data
->lock
);
766 /* Get a fresh value for CONTROL */
767 data
->pwm
[CONTROL
][sattr
->index
] =
768 adt7475_read(PWM_CONFIG_REG(sattr
->index
));
771 * If we are not in manual mode, then we shouldn't allow
772 * the user to set the pwm speed
774 if (((data
->pwm
[CONTROL
][sattr
->index
] >> 5) & 7) != 7) {
775 mutex_unlock(&data
->lock
);
779 reg
= PWM_REG(sattr
->index
);
783 reg
= PWM_MIN_REG(sattr
->index
);
787 reg
= PWM_MAX_REG(sattr
->index
);
791 data
->pwm
[sattr
->nr
][sattr
->index
] = clamp_val(val
, 0, 0xFF);
792 i2c_smbus_write_byte_data(client
, reg
,
793 data
->pwm
[sattr
->nr
][sattr
->index
]);
794 mutex_unlock(&data
->lock
);
799 static ssize_t
show_stall_disable(struct device
*dev
,
800 struct device_attribute
*attr
, char *buf
)
802 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
803 struct i2c_client
*client
= to_i2c_client(dev
);
804 struct adt7475_data
*data
= i2c_get_clientdata(client
);
805 u8 mask
= BIT(5 + sattr
->index
);
807 return sprintf(buf
, "%d\n", !!(data
->enh_acoustics
[0] & mask
));
810 static ssize_t
set_stall_disable(struct device
*dev
,
811 struct device_attribute
*attr
, const char *buf
,
814 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
815 struct i2c_client
*client
= to_i2c_client(dev
);
816 struct adt7475_data
*data
= i2c_get_clientdata(client
);
818 u8 mask
= BIT(5 + sattr
->index
);
820 if (kstrtol(buf
, 10, &val
))
823 mutex_lock(&data
->lock
);
825 data
->enh_acoustics
[0] &= ~mask
;
827 data
->enh_acoustics
[0] |= mask
;
829 i2c_smbus_write_byte_data(client
, REG_ENHANCE_ACOUSTICS1
,
830 data
->enh_acoustics
[0]);
832 mutex_unlock(&data
->lock
);
837 /* Called by set_pwmctrl and set_pwmchan */
839 static int hw_set_pwm(struct i2c_client
*client
, int index
,
840 unsigned int pwmctl
, unsigned int pwmchan
)
842 struct adt7475_data
*data
= i2c_get_clientdata(client
);
847 val
= 0x03; /* Run at full speed */
850 val
= 0x07; /* Manual mode */
855 /* Remote1 controls PWM */
859 /* local controls PWM */
863 /* remote2 controls PWM */
867 /* local/remote2 control PWM */
871 /* All three control PWM */
882 data
->pwmctl
[index
] = pwmctl
;
883 data
->pwmchan
[index
] = pwmchan
;
885 data
->pwm
[CONTROL
][index
] &= ~0xE0;
886 data
->pwm
[CONTROL
][index
] |= (val
& 7) << 5;
888 i2c_smbus_write_byte_data(client
, PWM_CONFIG_REG(index
),
889 data
->pwm
[CONTROL
][index
]);
894 static ssize_t
set_pwmchan(struct device
*dev
, struct device_attribute
*attr
,
895 const char *buf
, size_t count
)
897 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
898 struct i2c_client
*client
= to_i2c_client(dev
);
899 struct adt7475_data
*data
= i2c_get_clientdata(client
);
903 if (kstrtol(buf
, 10, &val
))
906 mutex_lock(&data
->lock
);
907 /* Read Modify Write PWM values */
908 adt7475_read_pwm(client
, sattr
->index
);
909 r
= hw_set_pwm(client
, sattr
->index
, data
->pwmctl
[sattr
->index
], val
);
912 mutex_unlock(&data
->lock
);
917 static ssize_t
set_pwmctrl(struct device
*dev
, struct device_attribute
*attr
,
918 const char *buf
, size_t count
)
920 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
921 struct i2c_client
*client
= to_i2c_client(dev
);
922 struct adt7475_data
*data
= i2c_get_clientdata(client
);
926 if (kstrtol(buf
, 10, &val
))
929 mutex_lock(&data
->lock
);
930 /* Read Modify Write PWM values */
931 adt7475_read_pwm(client
, sattr
->index
);
932 r
= hw_set_pwm(client
, sattr
->index
, val
, data
->pwmchan
[sattr
->index
]);
935 mutex_unlock(&data
->lock
);
940 /* List of frequencies for the PWM */
941 static const int pwmfreq_table
[] = {
942 11, 14, 22, 29, 35, 44, 58, 88, 22500
945 static ssize_t
show_pwmfreq(struct device
*dev
, struct device_attribute
*attr
,
948 struct adt7475_data
*data
= adt7475_update_device(dev
);
949 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
950 int i
= clamp_val(data
->range
[sattr
->index
] & 0xf, 0,
951 ARRAY_SIZE(pwmfreq_table
) - 1);
953 return sprintf(buf
, "%d\n", pwmfreq_table
[i
]);
956 static ssize_t
set_pwmfreq(struct device
*dev
, struct device_attribute
*attr
,
957 const char *buf
, size_t count
)
959 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
960 struct i2c_client
*client
= to_i2c_client(dev
);
961 struct adt7475_data
*data
= i2c_get_clientdata(client
);
965 if (kstrtol(buf
, 10, &val
))
968 out
= find_closest(val
, pwmfreq_table
, ARRAY_SIZE(pwmfreq_table
));
970 mutex_lock(&data
->lock
);
972 data
->range
[sattr
->index
] =
973 adt7475_read(TEMP_TRANGE_REG(sattr
->index
));
974 data
->range
[sattr
->index
] &= ~0xf;
975 data
->range
[sattr
->index
] |= out
;
977 i2c_smbus_write_byte_data(client
, TEMP_TRANGE_REG(sattr
->index
),
978 data
->range
[sattr
->index
]);
980 mutex_unlock(&data
->lock
);
984 static ssize_t
pwm_use_point2_pwm_at_crit_show(struct device
*dev
,
985 struct device_attribute
*devattr
,
988 struct adt7475_data
*data
= adt7475_update_device(dev
);
989 return sprintf(buf
, "%d\n", !!(data
->config4
& CONFIG4_MAXDUTY
));
992 static ssize_t
pwm_use_point2_pwm_at_crit_store(struct device
*dev
,
993 struct device_attribute
*devattr
,
994 const char *buf
, size_t count
)
996 struct i2c_client
*client
= to_i2c_client(dev
);
997 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1000 if (kstrtol(buf
, 10, &val
))
1002 if (val
!= 0 && val
!= 1)
1005 mutex_lock(&data
->lock
);
1006 data
->config4
= i2c_smbus_read_byte_data(client
, REG_CONFIG4
);
1008 data
->config4
|= CONFIG4_MAXDUTY
;
1010 data
->config4
&= ~CONFIG4_MAXDUTY
;
1011 i2c_smbus_write_byte_data(client
, REG_CONFIG4
, data
->config4
);
1012 mutex_unlock(&data
->lock
);
1017 static ssize_t
vrm_show(struct device
*dev
, struct device_attribute
*devattr
,
1020 struct adt7475_data
*data
= dev_get_drvdata(dev
);
1021 return sprintf(buf
, "%d\n", (int)data
->vrm
);
1024 static ssize_t
vrm_store(struct device
*dev
, struct device_attribute
*devattr
,
1025 const char *buf
, size_t count
)
1027 struct adt7475_data
*data
= dev_get_drvdata(dev
);
1030 if (kstrtol(buf
, 10, &val
))
1032 if (val
< 0 || val
> 255)
1039 static ssize_t
cpu0_vid_show(struct device
*dev
,
1040 struct device_attribute
*devattr
, char *buf
)
1042 struct adt7475_data
*data
= adt7475_update_device(dev
);
1043 return sprintf(buf
, "%d\n", vid_from_reg(data
->vid
, data
->vrm
));
1046 static SENSOR_DEVICE_ATTR_2(in0_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 0);
1047 static SENSOR_DEVICE_ATTR_2(in0_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
1048 set_voltage
, MAX
, 0);
1049 static SENSOR_DEVICE_ATTR_2(in0_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
1050 set_voltage
, MIN
, 0);
1051 static SENSOR_DEVICE_ATTR_2(in0_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 0);
1052 static SENSOR_DEVICE_ATTR_2(in1_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 1);
1053 static SENSOR_DEVICE_ATTR_2(in1_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
1054 set_voltage
, MAX
, 1);
1055 static SENSOR_DEVICE_ATTR_2(in1_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
1056 set_voltage
, MIN
, 1);
1057 static SENSOR_DEVICE_ATTR_2(in1_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 1);
1058 static SENSOR_DEVICE_ATTR_2(in2_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 2);
1059 static SENSOR_DEVICE_ATTR_2(in2_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
1060 set_voltage
, MAX
, 2);
1061 static SENSOR_DEVICE_ATTR_2(in2_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
1062 set_voltage
, MIN
, 2);
1063 static SENSOR_DEVICE_ATTR_2(in2_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 2);
1064 static SENSOR_DEVICE_ATTR_2(in3_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 3);
1065 static SENSOR_DEVICE_ATTR_2(in3_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
1066 set_voltage
, MAX
, 3);
1067 static SENSOR_DEVICE_ATTR_2(in3_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
1068 set_voltage
, MIN
, 3);
1069 static SENSOR_DEVICE_ATTR_2(in3_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 3);
1070 static SENSOR_DEVICE_ATTR_2(in4_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 4);
1071 static SENSOR_DEVICE_ATTR_2(in4_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
1072 set_voltage
, MAX
, 4);
1073 static SENSOR_DEVICE_ATTR_2(in4_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
1074 set_voltage
, MIN
, 4);
1075 static SENSOR_DEVICE_ATTR_2(in4_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 8);
1076 static SENSOR_DEVICE_ATTR_2(in5_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 5);
1077 static SENSOR_DEVICE_ATTR_2(in5_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
1078 set_voltage
, MAX
, 5);
1079 static SENSOR_DEVICE_ATTR_2(in5_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
1080 set_voltage
, MIN
, 5);
1081 static SENSOR_DEVICE_ATTR_2(in5_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 31);
1082 static SENSOR_DEVICE_ATTR_2(temp1_input
, S_IRUGO
, show_temp
, NULL
, INPUT
, 0);
1083 static SENSOR_DEVICE_ATTR_2(temp1_alarm
, S_IRUGO
, show_temp
, NULL
, ALARM
, 0);
1084 static SENSOR_DEVICE_ATTR_2(temp1_fault
, S_IRUGO
, show_temp
, NULL
, FAULT
, 0);
1085 static SENSOR_DEVICE_ATTR_2(temp1_max
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1087 static SENSOR_DEVICE_ATTR_2(temp1_min
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1089 static SENSOR_DEVICE_ATTR_2(temp1_offset
, S_IRUGO
| S_IWUSR
, show_temp
,
1090 set_temp
, OFFSET
, 0);
1091 static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp
, S_IRUGO
| S_IWUSR
,
1092 show_temp
, set_temp
, AUTOMIN
, 0);
1093 static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp
, S_IRUGO
| S_IWUSR
,
1094 show_point2
, set_point2
, 0, 0);
1095 static SENSOR_DEVICE_ATTR_2(temp1_crit
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1097 static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst
, S_IRUGO
| S_IWUSR
, show_temp
,
1098 set_temp
, HYSTERSIS
, 0);
1099 static SENSOR_DEVICE_ATTR_2(temp1_smoothing
, S_IRUGO
| S_IWUSR
, show_temp_st
,
1101 static SENSOR_DEVICE_ATTR_2(temp2_input
, S_IRUGO
, show_temp
, NULL
, INPUT
, 1);
1102 static SENSOR_DEVICE_ATTR_2(temp2_alarm
, S_IRUGO
, show_temp
, NULL
, ALARM
, 1);
1103 static SENSOR_DEVICE_ATTR_2(temp2_max
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1105 static SENSOR_DEVICE_ATTR_2(temp2_min
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1107 static SENSOR_DEVICE_ATTR_2(temp2_offset
, S_IRUGO
| S_IWUSR
, show_temp
,
1108 set_temp
, OFFSET
, 1);
1109 static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp
, S_IRUGO
| S_IWUSR
,
1110 show_temp
, set_temp
, AUTOMIN
, 1);
1111 static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp
, S_IRUGO
| S_IWUSR
,
1112 show_point2
, set_point2
, 0, 1);
1113 static SENSOR_DEVICE_ATTR_2(temp2_crit
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1115 static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst
, S_IRUGO
| S_IWUSR
, show_temp
,
1116 set_temp
, HYSTERSIS
, 1);
1117 static SENSOR_DEVICE_ATTR_2(temp2_smoothing
, S_IRUGO
| S_IWUSR
, show_temp_st
,
1119 static SENSOR_DEVICE_ATTR_2(temp3_input
, S_IRUGO
, show_temp
, NULL
, INPUT
, 2);
1120 static SENSOR_DEVICE_ATTR_2(temp3_alarm
, S_IRUGO
, show_temp
, NULL
, ALARM
, 2);
1121 static SENSOR_DEVICE_ATTR_2(temp3_fault
, S_IRUGO
, show_temp
, NULL
, FAULT
, 2);
1122 static SENSOR_DEVICE_ATTR_2(temp3_max
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1124 static SENSOR_DEVICE_ATTR_2(temp3_min
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1126 static SENSOR_DEVICE_ATTR_2(temp3_offset
, S_IRUGO
| S_IWUSR
, show_temp
,
1127 set_temp
, OFFSET
, 2);
1128 static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp
, S_IRUGO
| S_IWUSR
,
1129 show_temp
, set_temp
, AUTOMIN
, 2);
1130 static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp
, S_IRUGO
| S_IWUSR
,
1131 show_point2
, set_point2
, 0, 2);
1132 static SENSOR_DEVICE_ATTR_2(temp3_crit
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
1134 static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst
, S_IRUGO
| S_IWUSR
, show_temp
,
1135 set_temp
, HYSTERSIS
, 2);
1136 static SENSOR_DEVICE_ATTR_2(temp3_smoothing
, S_IRUGO
| S_IWUSR
, show_temp_st
,
1138 static SENSOR_DEVICE_ATTR_2(fan1_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 0);
1139 static SENSOR_DEVICE_ATTR_2(fan1_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
1141 static SENSOR_DEVICE_ATTR_2(fan1_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 0);
1142 static SENSOR_DEVICE_ATTR_2(fan2_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 1);
1143 static SENSOR_DEVICE_ATTR_2(fan2_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
1145 static SENSOR_DEVICE_ATTR_2(fan2_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 1);
1146 static SENSOR_DEVICE_ATTR_2(fan3_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 2);
1147 static SENSOR_DEVICE_ATTR_2(fan3_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
1149 static SENSOR_DEVICE_ATTR_2(fan3_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 2);
1150 static SENSOR_DEVICE_ATTR_2(fan4_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 3);
1151 static SENSOR_DEVICE_ATTR_2(fan4_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
1153 static SENSOR_DEVICE_ATTR_2(fan4_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 3);
1154 static SENSOR_DEVICE_ATTR_2(pwm1
, S_IRUGO
| S_IWUSR
, show_pwm
, set_pwm
, INPUT
,
1156 static SENSOR_DEVICE_ATTR_2(pwm1_freq
, S_IRUGO
| S_IWUSR
, show_pwmfreq
,
1157 set_pwmfreq
, INPUT
, 0);
1158 static SENSOR_DEVICE_ATTR_2(pwm1_enable
, S_IRUGO
| S_IWUSR
, show_pwmctrl
,
1159 set_pwmctrl
, INPUT
, 0);
1160 static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp
, S_IRUGO
| S_IWUSR
,
1161 show_pwmchan
, set_pwmchan
, INPUT
, 0);
1162 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1164 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1166 static SENSOR_DEVICE_ATTR_2(pwm1_stall_disable
, S_IRUGO
| S_IWUSR
,
1167 show_stall_disable
, set_stall_disable
, 0, 0);
1168 static SENSOR_DEVICE_ATTR_2(pwm2
, S_IRUGO
| S_IWUSR
, show_pwm
, set_pwm
, INPUT
,
1170 static SENSOR_DEVICE_ATTR_2(pwm2_freq
, S_IRUGO
| S_IWUSR
, show_pwmfreq
,
1171 set_pwmfreq
, INPUT
, 1);
1172 static SENSOR_DEVICE_ATTR_2(pwm2_enable
, S_IRUGO
| S_IWUSR
, show_pwmctrl
,
1173 set_pwmctrl
, INPUT
, 1);
1174 static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp
, S_IRUGO
| S_IWUSR
,
1175 show_pwmchan
, set_pwmchan
, INPUT
, 1);
1176 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1178 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1180 static SENSOR_DEVICE_ATTR_2(pwm2_stall_disable
, S_IRUGO
| S_IWUSR
,
1181 show_stall_disable
, set_stall_disable
, 0, 1);
1182 static SENSOR_DEVICE_ATTR_2(pwm3
, S_IRUGO
| S_IWUSR
, show_pwm
, set_pwm
, INPUT
,
1184 static SENSOR_DEVICE_ATTR_2(pwm3_freq
, S_IRUGO
| S_IWUSR
, show_pwmfreq
,
1185 set_pwmfreq
, INPUT
, 2);
1186 static SENSOR_DEVICE_ATTR_2(pwm3_enable
, S_IRUGO
| S_IWUSR
, show_pwmctrl
,
1187 set_pwmctrl
, INPUT
, 2);
1188 static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp
, S_IRUGO
| S_IWUSR
,
1189 show_pwmchan
, set_pwmchan
, INPUT
, 2);
1190 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1192 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1194 static SENSOR_DEVICE_ATTR_2(pwm3_stall_disable
, S_IRUGO
| S_IWUSR
,
1195 show_stall_disable
, set_stall_disable
, 0, 2);
1197 /* Non-standard name, might need revisiting */
1198 static DEVICE_ATTR_RW(pwm_use_point2_pwm_at_crit
);
1200 static DEVICE_ATTR_RW(vrm
);
1201 static DEVICE_ATTR_RO(cpu0_vid
);
1203 static struct attribute
*adt7475_attrs
[] = {
1204 &sensor_dev_attr_in1_input
.dev_attr
.attr
,
1205 &sensor_dev_attr_in1_max
.dev_attr
.attr
,
1206 &sensor_dev_attr_in1_min
.dev_attr
.attr
,
1207 &sensor_dev_attr_in1_alarm
.dev_attr
.attr
,
1208 &sensor_dev_attr_in2_input
.dev_attr
.attr
,
1209 &sensor_dev_attr_in2_max
.dev_attr
.attr
,
1210 &sensor_dev_attr_in2_min
.dev_attr
.attr
,
1211 &sensor_dev_attr_in2_alarm
.dev_attr
.attr
,
1212 &sensor_dev_attr_temp1_input
.dev_attr
.attr
,
1213 &sensor_dev_attr_temp1_alarm
.dev_attr
.attr
,
1214 &sensor_dev_attr_temp1_fault
.dev_attr
.attr
,
1215 &sensor_dev_attr_temp1_max
.dev_attr
.attr
,
1216 &sensor_dev_attr_temp1_min
.dev_attr
.attr
,
1217 &sensor_dev_attr_temp1_offset
.dev_attr
.attr
,
1218 &sensor_dev_attr_temp1_auto_point1_temp
.dev_attr
.attr
,
1219 &sensor_dev_attr_temp1_auto_point2_temp
.dev_attr
.attr
,
1220 &sensor_dev_attr_temp1_crit
.dev_attr
.attr
,
1221 &sensor_dev_attr_temp1_crit_hyst
.dev_attr
.attr
,
1222 &sensor_dev_attr_temp1_smoothing
.dev_attr
.attr
,
1223 &sensor_dev_attr_temp2_input
.dev_attr
.attr
,
1224 &sensor_dev_attr_temp2_alarm
.dev_attr
.attr
,
1225 &sensor_dev_attr_temp2_max
.dev_attr
.attr
,
1226 &sensor_dev_attr_temp2_min
.dev_attr
.attr
,
1227 &sensor_dev_attr_temp2_offset
.dev_attr
.attr
,
1228 &sensor_dev_attr_temp2_auto_point1_temp
.dev_attr
.attr
,
1229 &sensor_dev_attr_temp2_auto_point2_temp
.dev_attr
.attr
,
1230 &sensor_dev_attr_temp2_crit
.dev_attr
.attr
,
1231 &sensor_dev_attr_temp2_crit_hyst
.dev_attr
.attr
,
1232 &sensor_dev_attr_temp2_smoothing
.dev_attr
.attr
,
1233 &sensor_dev_attr_temp3_input
.dev_attr
.attr
,
1234 &sensor_dev_attr_temp3_fault
.dev_attr
.attr
,
1235 &sensor_dev_attr_temp3_alarm
.dev_attr
.attr
,
1236 &sensor_dev_attr_temp3_max
.dev_attr
.attr
,
1237 &sensor_dev_attr_temp3_min
.dev_attr
.attr
,
1238 &sensor_dev_attr_temp3_offset
.dev_attr
.attr
,
1239 &sensor_dev_attr_temp3_auto_point1_temp
.dev_attr
.attr
,
1240 &sensor_dev_attr_temp3_auto_point2_temp
.dev_attr
.attr
,
1241 &sensor_dev_attr_temp3_crit
.dev_attr
.attr
,
1242 &sensor_dev_attr_temp3_crit_hyst
.dev_attr
.attr
,
1243 &sensor_dev_attr_temp3_smoothing
.dev_attr
.attr
,
1244 &sensor_dev_attr_fan1_input
.dev_attr
.attr
,
1245 &sensor_dev_attr_fan1_min
.dev_attr
.attr
,
1246 &sensor_dev_attr_fan1_alarm
.dev_attr
.attr
,
1247 &sensor_dev_attr_fan2_input
.dev_attr
.attr
,
1248 &sensor_dev_attr_fan2_min
.dev_attr
.attr
,
1249 &sensor_dev_attr_fan2_alarm
.dev_attr
.attr
,
1250 &sensor_dev_attr_fan3_input
.dev_attr
.attr
,
1251 &sensor_dev_attr_fan3_min
.dev_attr
.attr
,
1252 &sensor_dev_attr_fan3_alarm
.dev_attr
.attr
,
1253 &sensor_dev_attr_pwm1
.dev_attr
.attr
,
1254 &sensor_dev_attr_pwm1_freq
.dev_attr
.attr
,
1255 &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
,
1256 &sensor_dev_attr_pwm1_auto_channels_temp
.dev_attr
.attr
,
1257 &sensor_dev_attr_pwm1_auto_point1_pwm
.dev_attr
.attr
,
1258 &sensor_dev_attr_pwm1_auto_point2_pwm
.dev_attr
.attr
,
1259 &sensor_dev_attr_pwm1_stall_disable
.dev_attr
.attr
,
1260 &sensor_dev_attr_pwm3
.dev_attr
.attr
,
1261 &sensor_dev_attr_pwm3_freq
.dev_attr
.attr
,
1262 &sensor_dev_attr_pwm3_enable
.dev_attr
.attr
,
1263 &sensor_dev_attr_pwm3_auto_channels_temp
.dev_attr
.attr
,
1264 &sensor_dev_attr_pwm3_auto_point1_pwm
.dev_attr
.attr
,
1265 &sensor_dev_attr_pwm3_auto_point2_pwm
.dev_attr
.attr
,
1266 &sensor_dev_attr_pwm3_stall_disable
.dev_attr
.attr
,
1267 &dev_attr_pwm_use_point2_pwm_at_crit
.attr
,
1271 static struct attribute
*fan4_attrs
[] = {
1272 &sensor_dev_attr_fan4_input
.dev_attr
.attr
,
1273 &sensor_dev_attr_fan4_min
.dev_attr
.attr
,
1274 &sensor_dev_attr_fan4_alarm
.dev_attr
.attr
,
1278 static struct attribute
*pwm2_attrs
[] = {
1279 &sensor_dev_attr_pwm2
.dev_attr
.attr
,
1280 &sensor_dev_attr_pwm2_freq
.dev_attr
.attr
,
1281 &sensor_dev_attr_pwm2_enable
.dev_attr
.attr
,
1282 &sensor_dev_attr_pwm2_auto_channels_temp
.dev_attr
.attr
,
1283 &sensor_dev_attr_pwm2_auto_point1_pwm
.dev_attr
.attr
,
1284 &sensor_dev_attr_pwm2_auto_point2_pwm
.dev_attr
.attr
,
1285 &sensor_dev_attr_pwm2_stall_disable
.dev_attr
.attr
,
1289 static struct attribute
*in0_attrs
[] = {
1290 &sensor_dev_attr_in0_input
.dev_attr
.attr
,
1291 &sensor_dev_attr_in0_max
.dev_attr
.attr
,
1292 &sensor_dev_attr_in0_min
.dev_attr
.attr
,
1293 &sensor_dev_attr_in0_alarm
.dev_attr
.attr
,
1297 static struct attribute
*in3_attrs
[] = {
1298 &sensor_dev_attr_in3_input
.dev_attr
.attr
,
1299 &sensor_dev_attr_in3_max
.dev_attr
.attr
,
1300 &sensor_dev_attr_in3_min
.dev_attr
.attr
,
1301 &sensor_dev_attr_in3_alarm
.dev_attr
.attr
,
1305 static struct attribute
*in4_attrs
[] = {
1306 &sensor_dev_attr_in4_input
.dev_attr
.attr
,
1307 &sensor_dev_attr_in4_max
.dev_attr
.attr
,
1308 &sensor_dev_attr_in4_min
.dev_attr
.attr
,
1309 &sensor_dev_attr_in4_alarm
.dev_attr
.attr
,
1313 static struct attribute
*in5_attrs
[] = {
1314 &sensor_dev_attr_in5_input
.dev_attr
.attr
,
1315 &sensor_dev_attr_in5_max
.dev_attr
.attr
,
1316 &sensor_dev_attr_in5_min
.dev_attr
.attr
,
1317 &sensor_dev_attr_in5_alarm
.dev_attr
.attr
,
1321 static struct attribute
*vid_attrs
[] = {
1322 &dev_attr_cpu0_vid
.attr
,
1327 static const struct attribute_group adt7475_attr_group
= { .attrs
= adt7475_attrs
};
1328 static const struct attribute_group fan4_attr_group
= { .attrs
= fan4_attrs
};
1329 static const struct attribute_group pwm2_attr_group
= { .attrs
= pwm2_attrs
};
1330 static const struct attribute_group in0_attr_group
= { .attrs
= in0_attrs
};
1331 static const struct attribute_group in3_attr_group
= { .attrs
= in3_attrs
};
1332 static const struct attribute_group in4_attr_group
= { .attrs
= in4_attrs
};
1333 static const struct attribute_group in5_attr_group
= { .attrs
= in5_attrs
};
1334 static const struct attribute_group vid_attr_group
= { .attrs
= vid_attrs
};
1336 static int adt7475_detect(struct i2c_client
*client
,
1337 struct i2c_board_info
*info
)
1339 struct i2c_adapter
*adapter
= client
->adapter
;
1340 int vendid
, devid
, devid2
;
1343 if (!i2c_check_functionality(adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
1346 vendid
= adt7475_read(REG_VENDID
);
1347 devid2
= adt7475_read(REG_DEVID2
);
1348 if (vendid
!= 0x41 || /* Analog Devices */
1349 (devid2
& 0xf8) != 0x68)
1352 devid
= adt7475_read(REG_DEVID
);
1355 else if (devid
== 0x75 && client
->addr
== 0x2e)
1357 else if (devid
== 0x76)
1359 else if ((devid2
& 0xfc) == 0x6c)
1362 dev_dbg(&adapter
->dev
,
1363 "Couldn't detect an ADT7473/75/76/90 part at "
1364 "0x%02x\n", (unsigned int)client
->addr
);
1368 strlcpy(info
->type
, name
, I2C_NAME_SIZE
);
1373 static void adt7475_remove_files(struct i2c_client
*client
,
1374 struct adt7475_data
*data
)
1376 sysfs_remove_group(&client
->dev
.kobj
, &adt7475_attr_group
);
1378 sysfs_remove_group(&client
->dev
.kobj
, &fan4_attr_group
);
1380 sysfs_remove_group(&client
->dev
.kobj
, &pwm2_attr_group
);
1381 if (data
->has_voltage
& (1 << 0))
1382 sysfs_remove_group(&client
->dev
.kobj
, &in0_attr_group
);
1383 if (data
->has_voltage
& (1 << 3))
1384 sysfs_remove_group(&client
->dev
.kobj
, &in3_attr_group
);
1385 if (data
->has_voltage
& (1 << 4))
1386 sysfs_remove_group(&client
->dev
.kobj
, &in4_attr_group
);
1387 if (data
->has_voltage
& (1 << 5))
1388 sysfs_remove_group(&client
->dev
.kobj
, &in5_attr_group
);
1390 sysfs_remove_group(&client
->dev
.kobj
, &vid_attr_group
);
1393 static int adt7475_probe(struct i2c_client
*client
,
1394 const struct i2c_device_id
*id
)
1397 static const char * const names
[] = {
1398 [adt7473
] = "ADT7473",
1399 [adt7475
] = "ADT7475",
1400 [adt7476
] = "ADT7476",
1401 [adt7490
] = "ADT7490",
1404 struct adt7475_data
*data
;
1405 int i
, ret
= 0, revision
;
1406 u8 config2
, config3
;
1408 data
= devm_kzalloc(&client
->dev
, sizeof(*data
), GFP_KERNEL
);
1412 mutex_init(&data
->lock
);
1413 i2c_set_clientdata(client
, data
);
1415 if (client
->dev
.of_node
)
1416 chip
= (enum chips
)of_device_get_match_data(&client
->dev
);
1418 chip
= id
->driver_data
;
1420 /* Initialize device-specific values */
1423 data
->has_voltage
= 0x0e; /* in1 to in3 */
1424 revision
= adt7475_read(REG_DEVID2
) & 0x07;
1427 data
->has_voltage
= 0x3e; /* in1 to in5 */
1428 revision
= adt7475_read(REG_DEVID2
) & 0x03;
1429 if (revision
== 0x03)
1430 revision
+= adt7475_read(REG_DEVREV2
);
1433 data
->has_voltage
= 0x06; /* in1, in2 */
1434 revision
= adt7475_read(REG_DEVID2
) & 0x07;
1437 config3
= adt7475_read(REG_CONFIG3
);
1438 /* Pin PWM2 may alternatively be used for ALERT output */
1439 if (!(config3
& CONFIG3_SMBALERT
))
1441 /* Meaning of this bit is inverted for the ADT7473-1 */
1442 if (id
->driver_data
== adt7473
&& revision
>= 1)
1443 data
->has_pwm2
= !data
->has_pwm2
;
1445 data
->config4
= adt7475_read(REG_CONFIG4
);
1446 /* Pin TACH4 may alternatively be used for THERM */
1447 if ((data
->config4
& CONFIG4_PINFUNC
) == 0x0)
1451 * THERM configuration is more complex on the ADT7476 and ADT7490,
1452 * because 2 different pins (TACH4 and +2.5 Vin) can be used for
1455 if (id
->driver_data
== adt7490
) {
1456 if ((data
->config4
& CONFIG4_PINFUNC
) == 0x1 &&
1457 !(config3
& CONFIG3_THERM
))
1460 if (id
->driver_data
== adt7476
|| id
->driver_data
== adt7490
) {
1461 if (!(config3
& CONFIG3_THERM
) ||
1462 (data
->config4
& CONFIG4_PINFUNC
) == 0x1)
1463 data
->has_voltage
|= (1 << 0); /* in0 */
1467 * On the ADT7476, the +12V input pin may instead be used as VID5,
1468 * and VID pins may alternatively be used as GPIO
1470 if (id
->driver_data
== adt7476
) {
1471 u8 vid
= adt7475_read(REG_VID
);
1472 if (!(vid
& VID_VIDSEL
))
1473 data
->has_voltage
|= (1 << 4); /* in4 */
1475 data
->has_vid
= !(adt7475_read(REG_CONFIG5
) & CONFIG5_VIDGPIO
);
1478 /* Voltage attenuators can be bypassed, globally or individually */
1479 config2
= adt7475_read(REG_CONFIG2
);
1480 if (config2
& CONFIG2_ATTN
) {
1481 data
->bypass_attn
= (0x3 << 3) | 0x3;
1483 data
->bypass_attn
= ((data
->config4
& CONFIG4_ATTN_IN10
) >> 4) |
1484 ((data
->config4
& CONFIG4_ATTN_IN43
) >> 3);
1486 data
->bypass_attn
&= data
->has_voltage
;
1489 * Call adt7475_read_pwm for all pwm's as this will reprogram any
1490 * pwm's which are disabled to manual mode with 0% duty cycle
1492 for (i
= 0; i
< ADT7475_PWM_COUNT
; i
++)
1493 adt7475_read_pwm(client
, i
);
1495 /* Start monitoring */
1499 i2c_smbus_write_byte_data(client
, REG_CONFIG1
,
1500 adt7475_read(REG_CONFIG1
) | 0x01);
1506 ret
= sysfs_create_group(&client
->dev
.kobj
, &adt7475_attr_group
);
1510 /* Features that can be disabled individually */
1511 if (data
->has_fan4
) {
1512 ret
= sysfs_create_group(&client
->dev
.kobj
, &fan4_attr_group
);
1516 if (data
->has_pwm2
) {
1517 ret
= sysfs_create_group(&client
->dev
.kobj
, &pwm2_attr_group
);
1521 if (data
->has_voltage
& (1 << 0)) {
1522 ret
= sysfs_create_group(&client
->dev
.kobj
, &in0_attr_group
);
1526 if (data
->has_voltage
& (1 << 3)) {
1527 ret
= sysfs_create_group(&client
->dev
.kobj
, &in3_attr_group
);
1531 if (data
->has_voltage
& (1 << 4)) {
1532 ret
= sysfs_create_group(&client
->dev
.kobj
, &in4_attr_group
);
1536 if (data
->has_voltage
& (1 << 5)) {
1537 ret
= sysfs_create_group(&client
->dev
.kobj
, &in5_attr_group
);
1541 if (data
->has_vid
) {
1542 data
->vrm
= vid_which_vrm();
1543 ret
= sysfs_create_group(&client
->dev
.kobj
, &vid_attr_group
);
1548 data
->hwmon_dev
= hwmon_device_register(&client
->dev
);
1549 if (IS_ERR(data
->hwmon_dev
)) {
1550 ret
= PTR_ERR(data
->hwmon_dev
);
1554 dev_info(&client
->dev
, "%s device, revision %d\n",
1555 names
[id
->driver_data
], revision
);
1556 if ((data
->has_voltage
& 0x11) || data
->has_fan4
|| data
->has_pwm2
)
1557 dev_info(&client
->dev
, "Optional features:%s%s%s%s%s\n",
1558 (data
->has_voltage
& (1 << 0)) ? " in0" : "",
1559 (data
->has_voltage
& (1 << 4)) ? " in4" : "",
1560 data
->has_fan4
? " fan4" : "",
1561 data
->has_pwm2
? " pwm2" : "",
1562 data
->has_vid
? " vid" : "");
1563 if (data
->bypass_attn
)
1564 dev_info(&client
->dev
, "Bypassing attenuators on:%s%s%s%s\n",
1565 (data
->bypass_attn
& (1 << 0)) ? " in0" : "",
1566 (data
->bypass_attn
& (1 << 1)) ? " in1" : "",
1567 (data
->bypass_attn
& (1 << 3)) ? " in3" : "",
1568 (data
->bypass_attn
& (1 << 4)) ? " in4" : "");
1573 adt7475_remove_files(client
, data
);
1577 static int adt7475_remove(struct i2c_client
*client
)
1579 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1581 hwmon_device_unregister(data
->hwmon_dev
);
1582 adt7475_remove_files(client
, data
);
1587 static struct i2c_driver adt7475_driver
= {
1588 .class = I2C_CLASS_HWMON
,
1591 .of_match_table
= of_match_ptr(adt7475_of_match
),
1593 .probe
= adt7475_probe
,
1594 .remove
= adt7475_remove
,
1595 .id_table
= adt7475_id
,
1596 .detect
= adt7475_detect
,
1597 .address_list
= normal_i2c
,
1600 static void adt7475_read_hystersis(struct i2c_client
*client
)
1602 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1604 data
->temp
[HYSTERSIS
][0] = (u16
) adt7475_read(REG_REMOTE1_HYSTERSIS
);
1605 data
->temp
[HYSTERSIS
][1] = data
->temp
[HYSTERSIS
][0];
1606 data
->temp
[HYSTERSIS
][2] = (u16
) adt7475_read(REG_REMOTE2_HYSTERSIS
);
1609 static void adt7475_read_pwm(struct i2c_client
*client
, int index
)
1611 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1614 data
->pwm
[CONTROL
][index
] = adt7475_read(PWM_CONFIG_REG(index
));
1617 * Figure out the internal value for pwmctrl and pwmchan
1618 * based on the current settings
1620 v
= (data
->pwm
[CONTROL
][index
] >> 5) & 7;
1623 data
->pwmctl
[index
] = 0;
1625 data
->pwmctl
[index
] = 1;
1628 * The fan is disabled - we don't want to
1629 * support that, so change to manual mode and
1630 * set the duty cycle to 0 instead
1632 data
->pwm
[INPUT
][index
] = 0;
1633 data
->pwm
[CONTROL
][index
] &= ~0xE0;
1634 data
->pwm
[CONTROL
][index
] |= (7 << 5);
1636 i2c_smbus_write_byte_data(client
, PWM_CONFIG_REG(index
),
1637 data
->pwm
[INPUT
][index
]);
1639 i2c_smbus_write_byte_data(client
, PWM_CONFIG_REG(index
),
1640 data
->pwm
[CONTROL
][index
]);
1642 data
->pwmctl
[index
] = 1;
1644 data
->pwmctl
[index
] = 2;
1648 data
->pwmchan
[index
] = 1;
1651 data
->pwmchan
[index
] = 2;
1654 data
->pwmchan
[index
] = 4;
1657 data
->pwmchan
[index
] = 6;
1660 data
->pwmchan
[index
] = 7;
1666 static struct adt7475_data
*adt7475_update_device(struct device
*dev
)
1668 struct i2c_client
*client
= to_i2c_client(dev
);
1669 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1673 mutex_lock(&data
->lock
);
1675 /* Measurement values update every 2 seconds */
1676 if (time_after(jiffies
, data
->measure_updated
+ HZ
* 2) ||
1678 data
->alarms
= adt7475_read(REG_STATUS2
) << 8;
1679 data
->alarms
|= adt7475_read(REG_STATUS1
);
1681 ext
= (adt7475_read(REG_EXTEND2
) << 8) |
1682 adt7475_read(REG_EXTEND1
);
1683 for (i
= 0; i
< ADT7475_VOLTAGE_COUNT
; i
++) {
1684 if (!(data
->has_voltage
& (1 << i
)))
1686 data
->voltage
[INPUT
][i
] =
1687 (adt7475_read(VOLTAGE_REG(i
)) << 2) |
1688 ((ext
>> (i
* 2)) & 3);
1691 for (i
= 0; i
< ADT7475_TEMP_COUNT
; i
++)
1692 data
->temp
[INPUT
][i
] =
1693 (adt7475_read(TEMP_REG(i
)) << 2) |
1694 ((ext
>> ((i
+ 5) * 2)) & 3);
1696 if (data
->has_voltage
& (1 << 5)) {
1697 data
->alarms
|= adt7475_read(REG_STATUS4
) << 24;
1698 ext
= adt7475_read(REG_EXTEND3
);
1699 data
->voltage
[INPUT
][5] = adt7475_read(REG_VTT
) << 2 |
1703 for (i
= 0; i
< ADT7475_TACH_COUNT
; i
++) {
1704 if (i
== 3 && !data
->has_fan4
)
1706 data
->tach
[INPUT
][i
] =
1707 adt7475_read_word(client
, TACH_REG(i
));
1710 /* Updated by hw when in auto mode */
1711 for (i
= 0; i
< ADT7475_PWM_COUNT
; i
++) {
1712 if (i
== 1 && !data
->has_pwm2
)
1714 data
->pwm
[INPUT
][i
] = adt7475_read(PWM_REG(i
));
1718 data
->vid
= adt7475_read(REG_VID
) & 0x3f;
1720 data
->measure_updated
= jiffies
;
1723 /* Limits and settings, should never change update every 60 seconds */
1724 if (time_after(jiffies
, data
->limits_updated
+ HZ
* 60) ||
1726 data
->config4
= adt7475_read(REG_CONFIG4
);
1727 data
->config5
= adt7475_read(REG_CONFIG5
);
1729 for (i
= 0; i
< ADT7475_VOLTAGE_COUNT
; i
++) {
1730 if (!(data
->has_voltage
& (1 << i
)))
1732 /* Adjust values so they match the input precision */
1733 data
->voltage
[MIN
][i
] =
1734 adt7475_read(VOLTAGE_MIN_REG(i
)) << 2;
1735 data
->voltage
[MAX
][i
] =
1736 adt7475_read(VOLTAGE_MAX_REG(i
)) << 2;
1739 if (data
->has_voltage
& (1 << 5)) {
1740 data
->voltage
[MIN
][5] = adt7475_read(REG_VTT_MIN
) << 2;
1741 data
->voltage
[MAX
][5] = adt7475_read(REG_VTT_MAX
) << 2;
1744 for (i
= 0; i
< ADT7475_TEMP_COUNT
; i
++) {
1745 /* Adjust values so they match the input precision */
1746 data
->temp
[MIN
][i
] =
1747 adt7475_read(TEMP_MIN_REG(i
)) << 2;
1748 data
->temp
[MAX
][i
] =
1749 adt7475_read(TEMP_MAX_REG(i
)) << 2;
1750 data
->temp
[AUTOMIN
][i
] =
1751 adt7475_read(TEMP_TMIN_REG(i
)) << 2;
1752 data
->temp
[THERM
][i
] =
1753 adt7475_read(TEMP_THERM_REG(i
)) << 2;
1754 data
->temp
[OFFSET
][i
] =
1755 adt7475_read(TEMP_OFFSET_REG(i
));
1757 adt7475_read_hystersis(client
);
1759 for (i
= 0; i
< ADT7475_TACH_COUNT
; i
++) {
1760 if (i
== 3 && !data
->has_fan4
)
1762 data
->tach
[MIN
][i
] =
1763 adt7475_read_word(client
, TACH_MIN_REG(i
));
1766 for (i
= 0; i
< ADT7475_PWM_COUNT
; i
++) {
1767 if (i
== 1 && !data
->has_pwm2
)
1769 data
->pwm
[MAX
][i
] = adt7475_read(PWM_MAX_REG(i
));
1770 data
->pwm
[MIN
][i
] = adt7475_read(PWM_MIN_REG(i
));
1771 /* Set the channel and control information */
1772 adt7475_read_pwm(client
, i
);
1775 data
->range
[0] = adt7475_read(TEMP_TRANGE_REG(0));
1776 data
->range
[1] = adt7475_read(TEMP_TRANGE_REG(1));
1777 data
->range
[2] = adt7475_read(TEMP_TRANGE_REG(2));
1779 data
->limits_updated
= jiffies
;
1783 mutex_unlock(&data
->lock
);
1788 module_i2c_driver(adt7475_driver
);
1790 MODULE_AUTHOR("Advanced Micro Devices, Inc");
1791 MODULE_DESCRIPTION("adt7475 driver");
1792 MODULE_LICENSE("GPL");