2 * nct6775 - Driver for the hardware monitoring functionality of
3 * Nuvoton NCT677x Super-I/O chips
5 * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net>
7 * Derived from w83627ehf driver
8 * Copyright (C) 2005-2011 Jean Delvare <khali@linux-fr.org>
9 * Copyright (C) 2006 Yuan Mu (Winbond),
10 * Rudolf Marek <r.marek@assembler.cz>
11 * David Hubbard <david.c.hubbard@gmail.com>
12 * Daniel J Blueman <daniel.blueman@gmail.com>
13 * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
15 * Shamelessly ripped from the w83627hf driver
16 * Copyright (C) 2003 Mark Studebaker
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 * Supports the following chips:
35 * Chip #vin #fan #pwm #temp chip IDs man ID
36 * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3
37 * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3
38 * nct6779d 15 5 5 2+5 0xc560 0xc1 0x5ca3
41 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
43 #include <linux/module.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/jiffies.h>
47 #include <linux/platform_device.h>
48 #include <linux/hwmon.h>
49 #include <linux/hwmon-sysfs.h>
50 #include <linux/hwmon-vid.h>
51 #include <linux/err.h>
52 #include <linux/mutex.h>
53 #include <linux/acpi.h>
57 enum kinds { nct6775, nct6776, nct6779 };
59 /* used to set data->name = nct6775_device_names[data->sio_kind] */
60 static const char * const nct6775_device_names[] = {
66 static unsigned short force_id;
67 module_param(force_id, ushort, 0);
68 MODULE_PARM_DESC(force_id, "Override the detected device ID");
70 static unsigned short fan_debounce;
71 module_param(fan_debounce, ushort, 0);
72 MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
74 #define DRVNAME "nct6775"
77 * Super-I/O constants and functions
80 #define NCT6775_LD_ACPI 0x0a
81 #define NCT6775_LD_HWM 0x0b
82 #define NCT6775_LD_VID 0x0d
84 #define SIO_REG_LDSEL 0x07 /* Logical device select */
85 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
86 #define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */
87 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
88 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
89 #define SIO_REG_VID_CTRL 0xF0 /* VID control */
90 #define SIO_REG_VID_DATA 0xF1 /* VID data */
92 #define SIO_NCT6775_ID 0xb470
93 #define SIO_NCT6776_ID 0xc330
94 #define SIO_NCT6779_ID 0xc560
95 #define SIO_ID_MASK 0xFFF0
98 superio_outb(int ioreg, int reg, int val)
101 outb(val, ioreg + 1);
105 superio_inb(int ioreg, int reg)
108 return inb(ioreg + 1);
112 superio_select(int ioreg, int ld)
114 outb(SIO_REG_LDSEL, ioreg);
119 superio_enter(int ioreg)
126 superio_exit(int ioreg)
130 outb(0x02, ioreg + 1);
137 #define IOREGION_ALIGNMENT (~7)
138 #define IOREGION_OFFSET 5
139 #define IOREGION_LENGTH 2
140 #define ADDR_REG_OFFSET 0
141 #define DATA_REG_OFFSET 1
143 #define NCT6775_REG_BANK 0x4E
144 #define NCT6775_REG_CONFIG 0x40
147 * Not currently used:
148 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
149 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
150 * REG_MAN_ID is at port 0x4f
151 * REG_CHIP_ID is at port 0x58
154 static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
156 /* Voltage min/max registers for nr=7..14 are in bank 5 */
158 static const u16 NCT6775_REG_IN_MAX[] = {
159 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556 };
160 static const u16 NCT6775_REG_IN_MIN[] = {
161 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557 };
162 static const u16 NCT6775_REG_IN[] = {
163 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
166 static const u16 NCT6779_REG_IN[] = {
167 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
168 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e
171 #define NCT6775_REG_VBAT 0x5D
173 #define NCT6775_REG_FANDIV1 0x506
174 #define NCT6775_REG_FANDIV2 0x507
176 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
178 static const u16 NCT6775_REG_ALARM[6] = { 0x459, 0x45A, 0x45B };
179 static const u16 NCT6779_REG_ALARM[6] = { 0x459, 0x45A, 0x45B, 0x568 };
181 #define NCT6775_REG_CASEOPEN 0x42
183 static const u8 NCT6775_CASEOPEN_MASK[] = { 0x10, 0x00 };
184 static const u8 NCT6776_CASEOPEN_MASK[] = { 0x10, 0x40 };
186 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
187 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
189 /* DC or PWM output fan configuration */
190 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
191 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
193 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
194 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
196 /* Advanced Fan control, some values are common for all fans */
198 static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
199 static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
200 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
201 0x103, 0x203, 0x303, 0x803, 0x903 };
202 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
203 0x104, 0x204, 0x304, 0x804, 0x904 };
204 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
205 0x105, 0x205, 0x305, 0x805, 0x905 };
206 static const u16 NCT6775_REG_FAN_START_OUTPUT[]
207 = { 0x106, 0x206, 0x306, 0x806, 0x906 };
208 static const u16 NCT6775_REG_FAN_STOP_TIME[]
209 = { 0x107, 0x207, 0x307, 0x807, 0x907 };
210 static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
211 static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
213 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
215 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642};
217 static const u16 NCT6779_REG_TOLERANCE_H[]
218 = { 0x10c, 0x20c, 0x30c, 0x40c, 0x50c };
220 static const u16 NCT6779_REG_FAN[] = { 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8 };
222 static const u16 NCT6775_REG_TEMP[]
223 = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
224 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
225 static const u16 NCT6775_REG_TEMP_CONFIG[]
226 = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
227 static const u16 NCT6775_REG_TEMP_HYST[]
228 = { 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
229 static const u16 NCT6775_REG_TEMP_OVER[]
230 = { 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
232 static const u16 NCT6775_REG_TEMP_SOURCE[]
233 = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
235 static const u16 NCT6775_REG_TEMP_SEL[]
236 = { 0x100, 0x200, 0x300, 0x800, 0x900 };
238 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[]
239 = { 0x139, 0x239, 0x339, 0x839, 0x939 };
240 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[]
241 = { 0x13a, 0x23a, 0x33a, 0x83a, 0x93a };
242 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[]
243 = { 0x13b, 0x23b, 0x33b, 0x83b, 0x93b };
244 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[]
245 = { 0x13c, 0x23c, 0x33c, 0x83c, 0x93c };
246 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[]
247 = { 0x13d, 0x23d, 0x33d, 0x83d, 0x93d };
249 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[]
250 = { 0x13e, 0x23e, 0x33e, 0x83e, 0x93e };
252 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
254 static const u16 NCT6776_REG_TEMP_CONFIG[11]
255 = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
257 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
259 static const u16 NCT6775_REG_AUTO_TEMP[]
260 = { 0x121, 0x221, 0x321, 0x821, 0x921 };
261 static const u16 NCT6775_REG_AUTO_PWM[]
262 = { 0x127, 0x227, 0x327, 0x827, 0x927 };
264 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
265 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
267 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
269 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
270 0x135, 0x235, 0x335, 0x835, 0x935 };
271 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
272 0x138, 0x238, 0x338, 0x838, 0x938 };
274 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
275 0x136, 0x236, 0x336, 0x836, 0x936 };
276 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
277 0x137, 0x237, 0x337, 0x837, 0x937 };
279 static const char *const nct6775_temp_label[] = {
293 "PCH_CHIP_CPU_MAX_TEMP",
303 static const char *const nct6776_temp_label[] = {
318 "PCH_CHIP_CPU_MAX_TEMP",
329 static const char *const nct6779_temp_label[] = {
348 "PCH_CHIP_CPU_MAX_TEMP",
359 #define NUM_REG_TEMP ARRAY_SIZE(NCT6775_REG_TEMP)
361 static inline int reg_to_pwm_enable(int pwm, int mode)
363 if (mode == 0 && pwm == 255)
365 if (mode == 3) /* SmartFan III */
366 return 2; /* convert to thermal cruise */
369 return 4; /* SmartFan IV */
372 static inline int pwm_enable_to_reg(int mode)
385 /* 1 is DC mode, output in ms */
386 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
388 return mode ? 400 * reg : 100 * reg;
391 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
393 return SENSORS_LIMIT((mode ? (msec + 200) / 400 :
394 (msec + 50) / 100), 1, 255);
397 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
399 if (reg == 0 || reg == 255)
401 return 1350000U / (reg << divreg);
404 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
406 if ((reg & 0xff1f) == 0xff1f)
409 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
414 return 1350000U / reg;
417 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
419 if (reg == 0 || reg == 0xffff)
423 * Even though the registers are 16 bit wide, the fan divisor
426 return 1350000U / (reg << divreg);
429 static inline unsigned int
436 * Some of the voltage inputs have internal scaling, the tables below
437 * contain 8 (the ADC LSB in mV) * scaling factor * 100
439 static const u16 scale_in[15] = {
440 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
444 static inline long in_from_reg(u8 reg, u8 nr)
446 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
449 static inline u8 in_to_reg(u32 val, u8 nr)
451 return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
456 * Data structures and manipulation thereof
459 struct nct6775_data {
460 int addr; /* IO base of hw monitor block */
464 struct device *hwmon_dev;
467 u16 reg_temp[3][NUM_REG_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
468 u8 temp_src[NUM_REG_TEMP];
469 u16 reg_temp_config[NUM_REG_TEMP];
470 const char * const *temp_label;
476 const u16 *REG_IN_MINMAX[2];
478 const u16 *REG_TARGET;
480 const u16 *REG_FAN_MODE;
481 const u16 *REG_FAN_MIN;
482 const u16 *REG_FAN_TIME[3];
484 const u8 *REG_PWM_MODE;
485 const u8 *PWM_MODE_MASK;
487 const u16 *REG_PWM[3];
488 const u16 *REG_PWM_READ;
490 const u16 *REG_TEMP_MON;
491 const u16 *REG_AUTO_TEMP;
492 const u16 *REG_AUTO_PWM;
494 const u16 *REG_CRITICAL_TEMP;
495 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
497 const u16 *REG_TEMP_SOURCE; /* temp register sources */
498 const u16 *REG_TEMP_SEL[2]; /* pwm temp, 0=base, 1=weight */
500 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=hyst, 2=step */
501 const u16 *REG_WEIGHT_DUTY[2]; /* 0=step, 1=base */
503 const u16 *REG_TEMP_OFFSET;
505 const u16 *REG_ALARM;
508 const u8 *CASEOPEN_MASK;
510 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
511 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
513 struct mutex update_lock;
514 char valid; /* !=0 if following fields are valid */
515 unsigned long last_updated; /* In jiffies */
517 /* Register values */
518 u8 bank; /* current register bank */
519 u8 in_num; /* number of in inputs we have */
520 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
525 u8 has_fan; /* some fan inputs can be disabled */
526 u8 has_fan_min; /* some fans don't have min register */
530 s16 temp[3][NUM_REG_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
534 u8 pwm_num; /* number of pwm */
536 u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */
537 u8 pwm_enable[5]; /* 0->off
539 * 2->thermal cruise mode (also called SmartFan I)
540 * 3->fan speed cruise mode
541 * 4->enhanced variable thermal cruise (also called
544 u8 pwm[3][5]; /* [0]=pwm, [1]=fan_start_output, [2]=fan_stop_output */
549 u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
551 /* Automatic fan speed control registers */
556 u8 pwm_temp_sel[2][5];
558 u8 pwm_weight_enable[5]; /* 0->off, 1->on */
559 u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol,
562 u8 weight_duty[2][5]; /* 0->duty_step, 1->duty_base */
568 u16 have_temp_offset;
572 struct nct6775_sio_data {
577 static bool is_word_sized(struct nct6775_data *data, u16 reg)
579 switch (data->kind) {
582 return (((reg & 0xff00) == 0x100 ||
583 (reg & 0xff00) == 0x200) &&
584 ((reg & 0x00ff) == 0x50 ||
585 (reg & 0x00ff) == 0x53 ||
586 (reg & 0x00ff) == 0x55)) ||
587 (reg & 0xfff0) == 0x630 ||
588 reg == 0x640 || reg == 0x642 ||
589 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
590 reg == 0x73 || reg == 0x75 || reg == 0x77;
592 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
593 ((reg & 0xfff0) == 0x4c0 && (reg & 0x000f) < 0x09) ||
594 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
595 reg == 0x640 || reg == 0x642 ||
596 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
603 * On older chips, only registers 0x50-0x5f are banked.
604 * On more recent chips, all registers are banked.
605 * Assume that is the case and set the bank number for each access.
606 * Cache the bank number so it only needs to be set if it changes.
608 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
611 if (data->bank != bank) {
612 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
613 outb_p(bank, data->addr + DATA_REG_OFFSET);
618 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
620 int res, word_sized = is_word_sized(data, reg);
622 mutex_lock(&data->lock);
624 nct6775_set_bank(data, reg);
625 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
626 res = inb_p(data->addr + DATA_REG_OFFSET);
628 outb_p((reg & 0xff) + 1,
629 data->addr + ADDR_REG_OFFSET);
630 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
633 mutex_unlock(&data->lock);
637 static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
639 int word_sized = is_word_sized(data, reg);
641 mutex_lock(&data->lock);
643 nct6775_set_bank(data, reg);
644 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
646 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
647 outb_p((reg & 0xff) + 1,
648 data->addr + ADDR_REG_OFFSET);
650 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
652 mutex_unlock(&data->lock);
656 /* We left-align 8-bit temperature values to make the code simpler */
657 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
661 res = nct6775_read_value(data, reg);
662 if (!is_word_sized(data, reg))
668 static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
670 if (!is_word_sized(data, reg))
672 return nct6775_write_value(data, reg, value);
675 /* This function assumes that the caller holds data->update_lock */
676 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
682 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
683 | (data->fan_div[0] & 0x7);
684 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
687 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
688 | ((data->fan_div[1] << 4) & 0x70);
689 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
691 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
692 | (data->fan_div[2] & 0x7);
693 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
696 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
697 | ((data->fan_div[3] << 4) & 0x70);
698 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
703 static void nct6775_write_fan_div_common(struct device *dev,
704 struct nct6775_data *data, int nr)
706 if (data->kind == nct6775)
707 nct6775_write_fan_div(data, nr);
710 static void nct6775_update_fan_div(struct nct6775_data *data)
714 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
715 data->fan_div[0] = i & 0x7;
716 data->fan_div[1] = (i & 0x70) >> 4;
717 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
718 data->fan_div[2] = i & 0x7;
719 if (data->has_fan & (1<<3))
720 data->fan_div[3] = (i & 0x70) >> 4;
723 static void nct6775_update_fan_div_common(struct device *dev,
724 struct nct6775_data *data)
726 if (data->kind == nct6775)
727 nct6775_update_fan_div(data);
730 static void nct6775_update_pwm(struct device *dev)
732 struct nct6775_data *data = dev_get_drvdata(dev);
737 for (i = 0; i < data->pwm_num; i++) {
738 if (!(data->has_pwm & (1 << i)))
741 duty_is_dc = data->REG_PWM_MODE[i] &&
742 (nct6775_read_value(data, data->REG_PWM_MODE[i])
743 & data->PWM_MODE_MASK[i]);
744 data->pwm_mode[i] = duty_is_dc;
746 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
747 for (j = 0; j < 3; j++)
749 = nct6775_read_value(data, data->REG_PWM[j][i]);
751 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
752 (fanmodecfg >> 4) & 7);
754 data->tolerance[i][0] = fanmodecfg & 0x0f;
755 if (data->kind == nct6779) {
756 reg = nct6775_read_value(data,
757 NCT6779_REG_TOLERANCE_H[i]);
758 data->tolerance[i][0] |= (reg & 0x70) >> 1;
760 data->tolerance[i][1] =
761 nct6775_read_value(data,
762 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
764 data->pwm_weight_enable[i] =
765 nct6775_read_value(data, data->REG_TEMP_SEL[1][i])
769 for (j = 0; j < 2; j++) {
770 reg = nct6775_read_value(data,
771 data->REG_TEMP_SEL[j][i]);
772 data->pwm_temp_sel[j][i] = reg & 0x1f;
774 /* Weight temp data */
775 for (j = 0; j < 3; j++) {
776 data->weight_temp[j][i]
777 = nct6775_read_value(data,
778 data->REG_WEIGHT_TEMP[j][i]);
780 /* Weight duty (pwm) data */
781 for (j = 0; j < 2; j++) {
782 if (!data->REG_WEIGHT_DUTY[j])
784 data->weight_duty[j][i]
785 = nct6775_read_value(data,
786 data->REG_WEIGHT_DUTY[j][i]);
791 static void nct6775_update_pwm_limits(struct device *dev)
793 struct nct6775_data *data = dev_get_drvdata(dev);
797 for (i = 0; i < data->pwm_num; i++) {
798 if (!(data->has_pwm & (1 << i)))
801 for (j = 0; j < 3; j++) {
802 data->fan_time[j][i] =
803 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
806 data->target_temp[i] =
807 nct6775_read_value(data, data->REG_TARGET[i]) &
808 (data->pwm_mode[i] ? 0xff : 0x7f);
810 nct6775_read_value(data, data->REG_TEMP_MON[i]);
812 for (j = 0; j < data->auto_pwm_num; j++) {
813 data->auto_pwm[i][j] =
814 nct6775_read_value(data,
815 NCT6775_AUTO_PWM(data, i, j));
816 data->auto_temp[i][j] =
817 nct6775_read_value(data,
818 NCT6775_AUTO_TEMP(data, i, j));
821 /* critical auto_pwm temperature data */
822 data->auto_temp[i][data->auto_pwm_num] =
823 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
825 switch (data->kind) {
827 reg = nct6775_read_value(data,
828 NCT6775_REG_CRITICAL_ENAB[i]);
829 data->auto_pwm[i][data->auto_pwm_num] =
830 (reg & 0x02) ? 0xff : 0x00;
833 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
836 reg = nct6775_read_value(data,
837 NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
839 data->auto_pwm[i][data->auto_pwm_num] =
840 nct6775_read_value(data,
841 NCT6779_REG_CRITICAL_PWM[i]);
843 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
849 static struct nct6775_data *nct6775_update_device(struct device *dev)
851 struct nct6775_data *data = dev_get_drvdata(dev);
854 mutex_lock(&data->update_lock);
856 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
858 /* Fan clock dividers */
859 nct6775_update_fan_div_common(dev, data);
861 /* Measured voltages and limits */
862 for (i = 0; i < data->in_num; i++) {
863 if (!(data->have_in & (1 << i)))
866 data->in[i][0] = nct6775_read_value(data,
868 data->in[i][1] = nct6775_read_value(data,
869 data->REG_IN_MINMAX[0][i]);
870 data->in[i][2] = nct6775_read_value(data,
871 data->REG_IN_MINMAX[1][i]);
874 /* Measured fan speeds and limits */
875 for (i = 0; i < 5; i++) {
878 if (!(data->has_fan & (1 << i)))
881 reg = nct6775_read_value(data, data->REG_FAN[i]);
882 data->rpm[i] = data->fan_from_reg(reg,
885 if (data->has_fan_min & (1 << i))
886 data->fan_min[i] = nct6775_read_value(data,
887 data->REG_FAN_MIN[i]);
890 * If we failed to measure the fan speed and clock
891 * divider can be increased, let's try that for next
894 if (data->has_fan_div
895 && (reg >= 0xff || (data->kind == nct6775
897 && data->fan_div[i] < 0x07) {
898 dev_dbg(dev, "Increasing fan%d "
899 "clock divider from %u to %u\n",
900 i + 1, div_from_reg(data->fan_div[i]),
901 div_from_reg(data->fan_div[i] + 1));
903 nct6775_write_fan_div_common(dev, data, i);
904 /* Preserve min limit if possible */
905 if ((data->has_fan_min & (1 << i))
906 && data->fan_min[i] >= 2
907 && data->fan_min[i] != 255)
908 nct6775_write_value(data,
909 data->REG_FAN_MIN[i],
910 (data->fan_min[i] /= 2));
914 nct6775_update_pwm(dev);
915 nct6775_update_pwm_limits(dev);
917 /* Measured temperatures and limits */
918 for (i = 0; i < NUM_REG_TEMP; i++) {
919 if (!(data->have_temp & (1 << i)))
921 for (j = 0; j < 3; j++) {
922 if (data->reg_temp[j][i])
924 = nct6775_read_temp(data,
925 data->reg_temp[j][i]);
927 if (!(data->have_temp_offset & (1 << i)))
930 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
934 for (i = 0; i < 6; i++) {
936 if (!data->REG_ALARM[i])
938 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
939 data->alarms |= (((u64)alarm) << (i << 3));
942 data->caseopen = nct6775_read_value(data, data->REG_CASEOPEN);
944 data->last_updated = jiffies;
948 mutex_unlock(&data->update_lock);
953 * Sysfs callback functions
956 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
958 struct nct6775_data *data = nct6775_update_device(dev);
959 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
961 int index = sattr->index;
962 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
966 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
969 struct nct6775_data *data = dev_get_drvdata(dev);
970 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
972 int index = sattr->index;
974 int err = kstrtoul(buf, 10, &val);
977 mutex_lock(&data->update_lock);
978 data->in[nr][index] = in_to_reg(val, nr);
979 nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr],
980 data->in[nr][index]);
981 mutex_unlock(&data->update_lock);
986 show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
988 struct nct6775_data *data = nct6775_update_device(dev);
989 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
990 int nr = sattr->index;
991 return sprintf(buf, "%u\n",
992 (unsigned int)((data->alarms >> nr) & 0x01));
995 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
996 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
997 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
998 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0);
999 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0);
1000 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0);
1001 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0);
1002 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0);
1003 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0);
1004 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0);
1005 static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0);
1006 static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0);
1007 static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0);
1008 static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0);
1009 static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0);
1011 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1012 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1013 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1014 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1015 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
1016 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21);
1017 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20);
1018 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
1019 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
1020 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 24);
1021 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
1022 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 26);
1023 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 27);
1024 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 28);
1025 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 29);
1027 static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg,
1028 store_in_reg, 0, 1);
1029 static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg,
1030 store_in_reg, 1, 1);
1031 static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg,
1032 store_in_reg, 2, 1);
1033 static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg,
1034 store_in_reg, 3, 1);
1035 static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg,
1036 store_in_reg, 4, 1);
1037 static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg,
1038 store_in_reg, 5, 1);
1039 static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg,
1040 store_in_reg, 6, 1);
1041 static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg,
1042 store_in_reg, 7, 1);
1043 static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg,
1044 store_in_reg, 8, 1);
1045 static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg,
1046 store_in_reg, 9, 1);
1047 static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg,
1048 store_in_reg, 10, 1);
1049 static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg,
1050 store_in_reg, 11, 1);
1051 static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg,
1052 store_in_reg, 12, 1);
1053 static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg,
1054 store_in_reg, 13, 1);
1055 static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg,
1056 store_in_reg, 14, 1);
1058 static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg,
1059 store_in_reg, 0, 2);
1060 static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg,
1061 store_in_reg, 1, 2);
1062 static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg,
1063 store_in_reg, 2, 2);
1064 static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg,
1065 store_in_reg, 3, 2);
1066 static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg,
1067 store_in_reg, 4, 2);
1068 static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg,
1069 store_in_reg, 5, 2);
1070 static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg,
1071 store_in_reg, 6, 2);
1072 static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg,
1073 store_in_reg, 7, 2);
1074 static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg,
1075 store_in_reg, 8, 2);
1076 static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg,
1077 store_in_reg, 9, 2);
1078 static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg,
1079 store_in_reg, 10, 2);
1080 static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg,
1081 store_in_reg, 11, 2);
1082 static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg,
1083 store_in_reg, 12, 2);
1084 static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg,
1085 store_in_reg, 13, 2);
1086 static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg,
1087 store_in_reg, 14, 2);
1089 static struct attribute *nct6775_attributes_in[15][5] = {
1091 &sensor_dev_attr_in0_input.dev_attr.attr,
1092 &sensor_dev_attr_in0_min.dev_attr.attr,
1093 &sensor_dev_attr_in0_max.dev_attr.attr,
1094 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1098 &sensor_dev_attr_in1_input.dev_attr.attr,
1099 &sensor_dev_attr_in1_min.dev_attr.attr,
1100 &sensor_dev_attr_in1_max.dev_attr.attr,
1101 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1105 &sensor_dev_attr_in2_input.dev_attr.attr,
1106 &sensor_dev_attr_in2_min.dev_attr.attr,
1107 &sensor_dev_attr_in2_max.dev_attr.attr,
1108 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1112 &sensor_dev_attr_in3_input.dev_attr.attr,
1113 &sensor_dev_attr_in3_min.dev_attr.attr,
1114 &sensor_dev_attr_in3_max.dev_attr.attr,
1115 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1119 &sensor_dev_attr_in4_input.dev_attr.attr,
1120 &sensor_dev_attr_in4_min.dev_attr.attr,
1121 &sensor_dev_attr_in4_max.dev_attr.attr,
1122 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1126 &sensor_dev_attr_in5_input.dev_attr.attr,
1127 &sensor_dev_attr_in5_min.dev_attr.attr,
1128 &sensor_dev_attr_in5_max.dev_attr.attr,
1129 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1133 &sensor_dev_attr_in6_input.dev_attr.attr,
1134 &sensor_dev_attr_in6_min.dev_attr.attr,
1135 &sensor_dev_attr_in6_max.dev_attr.attr,
1136 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1140 &sensor_dev_attr_in7_input.dev_attr.attr,
1141 &sensor_dev_attr_in7_min.dev_attr.attr,
1142 &sensor_dev_attr_in7_max.dev_attr.attr,
1143 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1147 &sensor_dev_attr_in8_input.dev_attr.attr,
1148 &sensor_dev_attr_in8_min.dev_attr.attr,
1149 &sensor_dev_attr_in8_max.dev_attr.attr,
1150 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1154 &sensor_dev_attr_in9_input.dev_attr.attr,
1155 &sensor_dev_attr_in9_min.dev_attr.attr,
1156 &sensor_dev_attr_in9_max.dev_attr.attr,
1157 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1161 &sensor_dev_attr_in10_input.dev_attr.attr,
1162 &sensor_dev_attr_in10_min.dev_attr.attr,
1163 &sensor_dev_attr_in10_max.dev_attr.attr,
1164 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1168 &sensor_dev_attr_in11_input.dev_attr.attr,
1169 &sensor_dev_attr_in11_min.dev_attr.attr,
1170 &sensor_dev_attr_in11_max.dev_attr.attr,
1171 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1175 &sensor_dev_attr_in12_input.dev_attr.attr,
1176 &sensor_dev_attr_in12_min.dev_attr.attr,
1177 &sensor_dev_attr_in12_max.dev_attr.attr,
1178 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1182 &sensor_dev_attr_in13_input.dev_attr.attr,
1183 &sensor_dev_attr_in13_min.dev_attr.attr,
1184 &sensor_dev_attr_in13_max.dev_attr.attr,
1185 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1189 &sensor_dev_attr_in14_input.dev_attr.attr,
1190 &sensor_dev_attr_in14_min.dev_attr.attr,
1191 &sensor_dev_attr_in14_max.dev_attr.attr,
1192 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1197 static const struct attribute_group nct6775_group_in[15] = {
1198 { .attrs = nct6775_attributes_in[0] },
1199 { .attrs = nct6775_attributes_in[1] },
1200 { .attrs = nct6775_attributes_in[2] },
1201 { .attrs = nct6775_attributes_in[3] },
1202 { .attrs = nct6775_attributes_in[4] },
1203 { .attrs = nct6775_attributes_in[5] },
1204 { .attrs = nct6775_attributes_in[6] },
1205 { .attrs = nct6775_attributes_in[7] },
1206 { .attrs = nct6775_attributes_in[8] },
1207 { .attrs = nct6775_attributes_in[9] },
1208 { .attrs = nct6775_attributes_in[10] },
1209 { .attrs = nct6775_attributes_in[11] },
1210 { .attrs = nct6775_attributes_in[12] },
1211 { .attrs = nct6775_attributes_in[13] },
1212 { .attrs = nct6775_attributes_in[14] },
1216 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1218 struct nct6775_data *data = nct6775_update_device(dev);
1219 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1220 int nr = sattr->index;
1221 return sprintf(buf, "%d\n", data->rpm[nr]);
1225 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1227 struct nct6775_data *data = nct6775_update_device(dev);
1228 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1229 int nr = sattr->index;
1230 return sprintf(buf, "%d\n",
1231 data->fan_from_reg_min(data->fan_min[nr],
1232 data->fan_div[nr]));
1236 show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1238 struct nct6775_data *data = nct6775_update_device(dev);
1239 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1240 int nr = sattr->index;
1241 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1245 store_fan_min(struct device *dev, struct device_attribute *attr,
1246 const char *buf, size_t count)
1248 struct nct6775_data *data = dev_get_drvdata(dev);
1249 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1250 int nr = sattr->index;
1256 err = kstrtoul(buf, 10, &val);
1260 mutex_lock(&data->update_lock);
1261 if (!data->has_fan_div) {
1263 * Only NCT6776F for now, so we know that this is a 13 bit
1271 val = 1350000U / val;
1272 val = (val & 0x1f) | ((val << 3) & 0xff00);
1274 data->fan_min[nr] = val;
1275 goto write_min; /* Leave fan divider alone */
1278 /* No min limit, alarm disabled */
1279 data->fan_min[nr] = 255;
1280 new_div = data->fan_div[nr]; /* No change */
1281 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1284 reg = 1350000U / val;
1285 if (reg >= 128 * 255) {
1287 * Speed below this value cannot possibly be represented,
1288 * even with the highest divider (128)
1290 data->fan_min[nr] = 254;
1291 new_div = 7; /* 128 == (1 << 7) */
1292 dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
1293 "minimum\n", nr + 1, val,
1294 data->fan_from_reg_min(254, 7));
1297 * Speed above this value cannot possibly be represented,
1298 * even with the lowest divider (1)
1300 data->fan_min[nr] = 1;
1301 new_div = 0; /* 1 == (1 << 0) */
1302 dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
1303 "maximum\n", nr + 1, val,
1304 data->fan_from_reg_min(1, 0));
1307 * Automatically pick the best divider, i.e. the one such
1308 * that the min limit will correspond to a register value
1309 * in the 96..192 range
1312 while (reg > 192 && new_div < 7) {
1316 data->fan_min[nr] = reg;
1321 * Write both the fan clock divider (if it changed) and the new
1322 * fan min (unconditionally)
1324 if (new_div != data->fan_div[nr]) {
1325 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1326 nr + 1, div_from_reg(data->fan_div[nr]),
1327 div_from_reg(new_div));
1328 data->fan_div[nr] = new_div;
1329 nct6775_write_fan_div_common(dev, data, nr);
1330 /* Give the chip time to sample a new speed value */
1331 data->last_updated = jiffies;
1335 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1337 mutex_unlock(&data->update_lock);
1342 static struct sensor_device_attribute sda_fan_input[] = {
1343 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
1344 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
1345 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
1346 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
1347 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
1350 static struct sensor_device_attribute sda_fan_alarm[] = {
1351 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
1352 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
1353 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
1354 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
1355 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
1358 static struct sensor_device_attribute sda_fan_min[] = {
1359 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
1361 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
1363 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
1365 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
1367 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
1371 static struct sensor_device_attribute sda_fan_div[] = {
1372 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
1373 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
1374 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
1375 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
1376 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
1380 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1382 struct nct6775_data *data = nct6775_update_device(dev);
1383 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1384 int nr = sattr->index;
1385 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1389 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1391 struct nct6775_data *data = nct6775_update_device(dev);
1392 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1394 int index = sattr->index;
1396 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1400 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1403 struct nct6775_data *data = dev_get_drvdata(dev);
1404 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1406 int index = sattr->index;
1410 err = kstrtol(buf, 10, &val);
1414 mutex_lock(&data->update_lock);
1415 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1416 nct6775_write_temp(data, data->reg_temp[index][nr],
1417 data->temp[index][nr]);
1418 mutex_unlock(&data->update_lock);
1423 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1425 struct nct6775_data *data = nct6775_update_device(dev);
1426 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1428 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
1432 store_temp_offset(struct device *dev, struct device_attribute *attr,
1433 const char *buf, size_t count)
1435 struct nct6775_data *data = dev_get_drvdata(dev);
1436 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1437 int nr = sattr->index;
1441 err = kstrtol(buf, 10, &val);
1445 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1447 mutex_lock(&data->update_lock);
1448 data->temp_offset[nr] = val;
1449 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
1450 mutex_unlock(&data->update_lock);
1456 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
1458 struct nct6775_data *data = nct6775_update_device(dev);
1459 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1460 int nr = sattr->index;
1461 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
1464 static struct sensor_device_attribute_2 sda_temp_input[] = {
1465 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
1466 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
1467 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0),
1468 SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0),
1469 SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0),
1470 SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0),
1473 static struct sensor_device_attribute sda_temp_label[] = {
1474 SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
1475 SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
1476 SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
1477 SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
1478 SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
1479 SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
1482 static struct sensor_device_attribute_2 sda_temp_max[] = {
1483 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1485 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1487 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1489 SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1491 SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1493 SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1497 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1498 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1500 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1502 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1504 SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1506 SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1508 SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1512 static struct sensor_device_attribute sda_temp_offset[] = {
1513 SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1514 store_temp_offset, 0),
1515 SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1516 store_temp_offset, 1),
1517 SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1518 store_temp_offset, 2),
1521 static struct sensor_device_attribute sda_temp_alarm[] = {
1522 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
1523 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
1524 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
1527 static struct sensor_device_attribute sda_temp_type[] = {
1528 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
1529 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
1530 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
1534 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
1536 struct nct6775_data *data = nct6775_update_device(dev);
1537 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1539 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
1543 store_pwm_mode(struct device *dev, struct device_attribute *attr,
1544 const char *buf, size_t count)
1546 struct nct6775_data *data = dev_get_drvdata(dev);
1547 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1548 int nr = sattr->index;
1553 err = kstrtoul(buf, 10, &val);
1560 /* Setting DC mode is not supported for all chips/channels */
1561 if (data->REG_PWM_MODE[nr] == 0) {
1567 mutex_lock(&data->update_lock);
1568 data->pwm_mode[nr] = val;
1569 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
1570 reg &= ~data->PWM_MODE_MASK[nr];
1572 reg |= data->PWM_MODE_MASK[nr];
1573 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
1574 mutex_unlock(&data->update_lock);
1579 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1581 struct nct6775_data *data = nct6775_update_device(dev);
1582 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1584 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
1588 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1590 struct nct6775_data *data = nct6775_update_device(dev);
1591 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1593 int index = sattr->index;
1597 * For automatic fan control modes, show current pwm readings.
1598 * Otherwise, show the configured value.
1600 if (index == 0 && data->pwm_enable[nr] > 1)
1601 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
1603 pwm = data->pwm[index][nr];
1605 return sprintf(buf, "%d\n", pwm);
1609 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
1612 struct nct6775_data *data = dev_get_drvdata(dev);
1613 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1615 int index = sattr->index;
1619 err = kstrtoul(buf, 10, &val);
1622 if (val > 255 || (index && val == 0))
1625 mutex_lock(&data->update_lock);
1626 data->pwm[index][nr] = val;
1627 nct6775_write_value(data, data->REG_PWM[index][nr], val);
1628 mutex_unlock(&data->update_lock);
1632 /* Returns 0 if OK, -EINVAL otherwise */
1633 static int check_trip_points(struct nct6775_data *data, int nr)
1637 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1638 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
1641 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1642 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
1645 /* validate critical temperature and pwm if enabled (pwm > 0) */
1646 if (data->auto_pwm[nr][data->auto_pwm_num]) {
1647 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
1648 data->auto_temp[nr][data->auto_pwm_num] ||
1649 data->auto_pwm[nr][data->auto_pwm_num - 1] >
1650 data->auto_pwm[nr][data->auto_pwm_num])
1657 store_pwm_enable(struct device *dev, struct device_attribute *attr,
1658 const char *buf, size_t count)
1660 struct nct6775_data *data = dev_get_drvdata(dev);
1661 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1662 int nr = sattr->index;
1667 err = kstrtoul(buf, 10, &val);
1674 if (val == 4 && check_trip_points(data, nr)) {
1675 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
1676 dev_err(dev, "Adjust trip points and try again\n");
1680 mutex_lock(&data->update_lock);
1681 data->pwm_enable[nr] = val;
1684 * turn off pwm control: select manual mode, set pwm to maximum
1686 data->pwm[0][nr] = 255;
1687 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
1689 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1691 reg |= (pwm_enable_to_reg(val) << 4);
1692 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1693 mutex_unlock(&data->update_lock);
1698 show_pwm_temp(struct device *dev, struct device_attribute *attr, char *buf)
1700 struct nct6775_data *data = nct6775_update_device(dev);
1701 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1702 int nr = sattr->index;
1704 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->pwm_temp[nr]));
1708 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
1710 struct nct6775_data *data = nct6775_update_device(dev);
1711 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1713 return sprintf(buf, "%d\n",
1714 data->pwm_temp_sel[sattr->index][sattr->nr]);
1718 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
1719 const char *buf, size_t count)
1721 struct nct6775_data *data = nct6775_update_device(dev);
1722 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1724 int index = sattr->index;
1728 static const int max_src[] = {
1729 ARRAY_SIZE(nct6775_temp_label),
1730 ARRAY_SIZE(nct6776_temp_label),
1731 ARRAY_SIZE(nct6779_temp_label)
1734 err = kstrtoul(buf, 10, &val);
1737 if (val == 0 || val > 0x1f)
1740 val = SENSORS_LIMIT(val, 1, max_src[data->kind]);
1742 if (!strlen(data->temp_label[val]))
1745 mutex_lock(&data->update_lock);
1746 data->pwm_temp_sel[index][nr] = val;
1747 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
1750 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
1751 mutex_unlock(&data->update_lock);
1757 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
1759 struct nct6775_data *data = nct6775_update_device(dev);
1760 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1762 return sprintf(buf, "%d\n",
1763 data->target_temp[sattr->index] * 1000);
1767 store_target_temp(struct device *dev, struct device_attribute *attr,
1768 const char *buf, size_t count)
1770 struct nct6775_data *data = dev_get_drvdata(dev);
1771 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1772 int nr = sattr->index;
1776 err = kstrtol(buf, 10, &val);
1780 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
1782 mutex_lock(&data->update_lock);
1783 data->target_temp[nr] = val;
1784 nct6775_write_value(data, data->REG_TARGET[nr], val);
1785 mutex_unlock(&data->update_lock);
1790 show_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1793 struct nct6775_data *data = nct6775_update_device(dev);
1794 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1796 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1797 int tolerance = data->tolerance[nr][point];
1798 int temp = data->auto_temp[nr][sattr->index];
1800 return sprintf(buf, "%d\n", (temp - tolerance) * 1000);
1804 store_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1805 const char *buf, size_t count)
1807 struct nct6775_data *data = dev_get_drvdata(dev);
1808 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1810 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1814 int maxlimit[2][3] = { { 15, 7, 63 }, { 15, 7, 7 } };
1815 int mask[] = { 0x0f, 0x07, 0x07 };
1818 err = kstrtol(buf, 10, &val);
1822 temp = data->auto_temp[nr][sattr->index];
1823 val = temp - DIV_ROUND_CLOSEST(val, 1000);
1825 /* Limit tolerance as needed */
1826 val = SENSORS_LIMIT(val, 0, maxlimit[point][data->kind]);
1828 mutex_lock(&data->update_lock);
1830 nct6775_write_value(data,
1831 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
1834 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1835 reg = (reg & ~mask[nr]) | (val & mask[nr]);
1836 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1837 if (data->kind == nct6779) {
1838 reg = nct6775_read_value(data,
1839 NCT6779_REG_TOLERANCE_H[nr]);
1840 reg = (reg & 0x70) | ((val & 0x38) << 1);
1841 nct6775_write_value(data,
1842 NCT6779_REG_TOLERANCE_H[nr], reg);
1846 data->tolerance[nr][point] = val;
1847 mutex_unlock(&data->update_lock);
1851 static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
1852 static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
1853 static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
1854 static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0);
1855 static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0);
1857 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1859 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1861 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1863 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1865 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1868 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1869 store_pwm_enable, 0);
1870 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1871 store_pwm_enable, 1);
1872 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1873 store_pwm_enable, 2);
1874 static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1875 store_pwm_enable, 3);
1876 static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1877 store_pwm_enable, 4);
1879 static SENSOR_DEVICE_ATTR_2(pwm1_temp_sel, S_IWUSR | S_IRUGO,
1880 show_pwm_temp_sel, store_pwm_temp_sel, 0, 0);
1881 static SENSOR_DEVICE_ATTR_2(pwm2_temp_sel, S_IWUSR | S_IRUGO,
1882 show_pwm_temp_sel, store_pwm_temp_sel, 1, 0);
1883 static SENSOR_DEVICE_ATTR_2(pwm3_temp_sel, S_IWUSR | S_IRUGO,
1884 show_pwm_temp_sel, store_pwm_temp_sel, 2, 0);
1885 static SENSOR_DEVICE_ATTR_2(pwm4_temp_sel, S_IWUSR | S_IRUGO,
1886 show_pwm_temp_sel, store_pwm_temp_sel, 3, 0);
1887 static SENSOR_DEVICE_ATTR_2(pwm5_temp_sel, S_IWUSR | S_IRUGO,
1888 show_pwm_temp_sel, store_pwm_temp_sel, 4, 0);
1890 static SENSOR_DEVICE_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1891 store_target_temp, 0);
1892 static SENSOR_DEVICE_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1893 store_target_temp, 1);
1894 static SENSOR_DEVICE_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1895 store_target_temp, 2);
1896 static SENSOR_DEVICE_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1897 store_target_temp, 3);
1898 static SENSOR_DEVICE_ATTR(pwm5_target, S_IWUSR | S_IRUGO, show_target_temp,
1899 store_target_temp, 4);
1901 /* Monitored pwm temperatures */
1902 static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_pwm_temp, NULL, 0);
1903 static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_pwm_temp, NULL, 1);
1904 static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_pwm_temp, NULL, 2);
1905 static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_pwm_temp, NULL, 3);
1906 static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, show_pwm_temp, NULL, 4);
1908 /* Smart Fan registers */
1911 show_pwm_weight_enable(struct device *dev, struct device_attribute *attr,
1914 struct nct6775_data *data = nct6775_update_device(dev);
1915 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1917 return sprintf(buf, "%d\n", data->pwm_weight_enable[sattr->index]);
1921 store_pwm_weight_enable(struct device *dev, struct device_attribute *attr,
1922 const char *buf, size_t count)
1924 struct nct6775_data *data = dev_get_drvdata(dev);
1925 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1926 int nr = sattr->index;
1931 err = kstrtoul(buf, 10, &val);
1938 mutex_lock(&data->update_lock);
1939 data->pwm_weight_enable[nr] = val;
1940 reg = nct6775_read_value(data, data->REG_TEMP_SEL[1][nr]);
1944 nct6775_write_value(data, data->REG_TEMP_SEL[1][nr], reg);
1945 mutex_unlock(&data->update_lock);
1950 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
1952 struct nct6775_data *data = nct6775_update_device(dev);
1953 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1955 int index = sattr->index;
1957 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
1961 store_weight_temp(struct device *dev, struct device_attribute *attr,
1962 const char *buf, size_t count)
1964 struct nct6775_data *data = dev_get_drvdata(dev);
1965 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1967 int index = sattr->index;
1971 err = kstrtoul(buf, 10, &val);
1975 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
1977 mutex_lock(&data->update_lock);
1978 data->weight_temp[index][nr] = val;
1979 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
1980 mutex_unlock(&data->update_lock);
1985 show_weight_duty(struct device *dev, struct device_attribute *attr, char *buf)
1987 struct nct6775_data *data = nct6775_update_device(dev);
1988 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1990 int index = sattr->index;
1992 return sprintf(buf, "%d\n", data->weight_duty[index][nr]);
1996 store_weight_duty(struct device *dev, struct device_attribute *attr,
1997 const char *buf, size_t count)
1999 struct nct6775_data *data = dev_get_drvdata(dev);
2000 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2002 int index = sattr->index;
2006 err = kstrtoul(buf, 10, &val);
2010 val = SENSORS_LIMIT(val, 0, 255);
2012 mutex_lock(&data->update_lock);
2013 data->weight_duty[index][nr] = val;
2014 nct6775_write_value(data, data->REG_WEIGHT_DUTY[index][nr], val);
2015 mutex_unlock(&data->update_lock);
2019 static SENSOR_DEVICE_ATTR(pwm1_weight_enable, S_IWUSR | S_IRUGO,
2020 show_pwm_weight_enable, store_pwm_weight_enable, 0);
2021 static SENSOR_DEVICE_ATTR(pwm2_weight_enable, S_IWUSR | S_IRUGO,
2022 show_pwm_weight_enable, store_pwm_weight_enable, 1);
2023 static SENSOR_DEVICE_ATTR(pwm3_weight_enable, S_IWUSR | S_IRUGO,
2024 show_pwm_weight_enable, store_pwm_weight_enable, 2);
2025 static SENSOR_DEVICE_ATTR(pwm4_weight_enable, S_IWUSR | S_IRUGO,
2026 show_pwm_weight_enable, store_pwm_weight_enable, 3);
2027 static SENSOR_DEVICE_ATTR(pwm5_weight_enable, S_IWUSR | S_IRUGO,
2028 show_pwm_weight_enable, store_pwm_weight_enable, 4);
2030 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO,
2031 show_pwm_temp_sel, store_pwm_temp_sel, 0, 1);
2032 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO,
2033 show_pwm_temp_sel, store_pwm_temp_sel, 1, 1);
2034 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO,
2035 show_pwm_temp_sel, store_pwm_temp_sel, 2, 1);
2036 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO,
2037 show_pwm_temp_sel, store_pwm_temp_sel, 3, 1);
2038 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO,
2039 show_pwm_temp_sel, store_pwm_temp_sel, 4, 1);
2041 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO,
2042 show_weight_temp, store_weight_temp, 0, 0);
2043 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO,
2044 show_weight_temp, store_weight_temp, 1, 0);
2045 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO,
2046 show_weight_temp, store_weight_temp, 2, 0);
2047 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO,
2048 show_weight_temp, store_weight_temp, 3, 0);
2049 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO,
2050 show_weight_temp, store_weight_temp, 4, 0);
2052 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2053 show_weight_temp, store_weight_temp, 0, 1);
2054 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2055 show_weight_temp, store_weight_temp, 1, 1);
2056 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2057 show_weight_temp, store_weight_temp, 2, 1);
2058 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2059 show_weight_temp, store_weight_temp, 3, 1);
2060 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2061 show_weight_temp, store_weight_temp, 4, 1);
2063 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO,
2064 show_weight_temp, store_weight_temp, 0, 2);
2065 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO,
2066 show_weight_temp, store_weight_temp, 1, 2);
2067 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO,
2068 show_weight_temp, store_weight_temp, 2, 2);
2069 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO,
2070 show_weight_temp, store_weight_temp, 3, 2);
2071 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO,
2072 show_weight_temp, store_weight_temp, 4, 2);
2074 static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO,
2075 show_weight_duty, store_weight_duty, 0, 0);
2076 static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO,
2077 show_weight_duty, store_weight_duty, 1, 0);
2078 static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO,
2079 show_weight_duty, store_weight_duty, 2, 0);
2080 static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO,
2081 show_weight_duty, store_weight_duty, 3, 0);
2082 static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO,
2083 show_weight_duty, store_weight_duty, 4, 0);
2085 /* duty_base is not supported on all chips */
2086 static struct sensor_device_attribute_2 sda_weight_duty_base[] = {
2087 SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO,
2088 show_weight_duty, store_weight_duty, 0, 1),
2089 SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO,
2090 show_weight_duty, store_weight_duty, 1, 1),
2091 SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO,
2092 show_weight_duty, store_weight_duty, 2, 1),
2093 SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO,
2094 show_weight_duty, store_weight_duty, 3, 1),
2095 SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO,
2096 show_weight_duty, store_weight_duty, 4, 1),
2100 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2102 struct nct6775_data *data = nct6775_update_device(dev);
2103 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2105 int index = sattr->index;
2107 return sprintf(buf, "%d\n",
2108 step_time_from_reg(data->fan_time[index][nr],
2109 data->pwm_mode[nr]));
2113 store_fan_time(struct device *dev, struct device_attribute *attr,
2114 const char *buf, size_t count)
2116 struct nct6775_data *data = dev_get_drvdata(dev);
2117 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2119 int index = sattr->index;
2123 err = kstrtoul(buf, 10, &val);
2127 val = step_time_to_reg(val, data->pwm_mode[nr]);
2128 mutex_lock(&data->update_lock);
2129 data->fan_time[index][nr] = val;
2130 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2131 mutex_unlock(&data->update_lock);
2136 show_name(struct device *dev, struct device_attribute *attr, char *buf)
2138 struct nct6775_data *data = dev_get_drvdata(dev);
2140 return sprintf(buf, "%s\n", data->name);
2143 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
2145 static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2146 store_fan_time, 0, 0);
2147 static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2148 store_fan_time, 1, 0);
2149 static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2150 store_fan_time, 2, 0);
2151 static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2152 store_fan_time, 3, 0);
2153 static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2154 store_fan_time, 4, 0);
2156 static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2157 store_fan_time, 0, 1);
2158 static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2159 store_fan_time, 1, 1);
2160 static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2161 store_fan_time, 2, 1);
2162 static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2163 store_fan_time, 3, 1);
2164 static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2165 store_fan_time, 4, 1);
2167 static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
2168 show_fan_time, store_fan_time, 0, 2);
2169 static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
2170 show_fan_time, store_fan_time, 1, 2);
2171 static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
2172 show_fan_time, store_fan_time, 2, 2);
2173 static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
2174 show_fan_time, store_fan_time, 3, 2);
2175 static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
2176 show_fan_time, store_fan_time, 4, 2);
2178 static SENSOR_DEVICE_ATTR_2(pwm1_start_output, S_IWUSR | S_IRUGO, show_pwm,
2180 static SENSOR_DEVICE_ATTR_2(pwm2_start_output, S_IWUSR | S_IRUGO, show_pwm,
2182 static SENSOR_DEVICE_ATTR_2(pwm3_start_output, S_IWUSR | S_IRUGO, show_pwm,
2184 static SENSOR_DEVICE_ATTR_2(pwm4_start_output, S_IWUSR | S_IRUGO, show_pwm,
2186 static SENSOR_DEVICE_ATTR_2(pwm5_start_output, S_IWUSR | S_IRUGO, show_pwm,
2189 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2191 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2193 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2195 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2197 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2200 static struct attribute *nct6775_attributes_pwm[5][19] = {
2202 &sensor_dev_attr_temp7_input.dev_attr.attr,
2203 &sensor_dev_attr_pwm1.dev_attr.attr,
2204 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
2205 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2206 &sensor_dev_attr_pwm1_weight_enable.dev_attr.attr,
2207 &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr,
2208 &sensor_dev_attr_pwm1_target.dev_attr.attr,
2209 &sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
2210 &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
2211 &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
2212 &sensor_dev_attr_pwm1_start_output.dev_attr.attr,
2213 &sensor_dev_attr_pwm1_stop_output.dev_attr.attr,
2214 &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr,
2215 &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr,
2216 &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr,
2217 &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr,
2218 &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr,
2222 &sensor_dev_attr_temp8_input.dev_attr.attr,
2223 &sensor_dev_attr_pwm2.dev_attr.attr,
2224 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
2225 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2226 &sensor_dev_attr_pwm2_weight_enable.dev_attr.attr,
2227 &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr,
2228 &sensor_dev_attr_pwm2_target.dev_attr.attr,
2229 &sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
2230 &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
2231 &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
2232 &sensor_dev_attr_pwm2_start_output.dev_attr.attr,
2233 &sensor_dev_attr_pwm2_stop_output.dev_attr.attr,
2234 &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr,
2235 &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr,
2236 &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr,
2237 &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr,
2238 &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr,
2242 &sensor_dev_attr_temp9_input.dev_attr.attr,
2243 &sensor_dev_attr_pwm3.dev_attr.attr,
2244 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
2245 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
2246 &sensor_dev_attr_pwm3_weight_enable.dev_attr.attr,
2247 &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr,
2248 &sensor_dev_attr_pwm3_target.dev_attr.attr,
2249 &sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
2250 &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
2251 &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
2252 &sensor_dev_attr_pwm3_start_output.dev_attr.attr,
2253 &sensor_dev_attr_pwm3_stop_output.dev_attr.attr,
2254 &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr,
2255 &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr,
2256 &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr,
2257 &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr,
2258 &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr,
2262 &sensor_dev_attr_temp10_input.dev_attr.attr,
2263 &sensor_dev_attr_pwm4.dev_attr.attr,
2264 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
2265 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
2266 &sensor_dev_attr_pwm4_weight_enable.dev_attr.attr,
2267 &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr,
2268 &sensor_dev_attr_pwm4_target.dev_attr.attr,
2269 &sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
2270 &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
2271 &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
2272 &sensor_dev_attr_pwm4_start_output.dev_attr.attr,
2273 &sensor_dev_attr_pwm4_stop_output.dev_attr.attr,
2274 &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr,
2275 &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr,
2276 &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr,
2277 &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr,
2278 &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr,
2282 &sensor_dev_attr_temp11_input.dev_attr.attr,
2283 &sensor_dev_attr_pwm5.dev_attr.attr,
2284 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
2285 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
2286 &sensor_dev_attr_pwm5_weight_enable.dev_attr.attr,
2287 &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr,
2288 &sensor_dev_attr_pwm5_target.dev_attr.attr,
2289 &sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
2290 &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
2291 &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
2292 &sensor_dev_attr_pwm5_start_output.dev_attr.attr,
2293 &sensor_dev_attr_pwm5_stop_output.dev_attr.attr,
2294 &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr,
2295 &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr,
2296 &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr,
2297 &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr,
2298 &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr,
2303 static const struct attribute_group nct6775_group_pwm[5] = {
2304 { .attrs = nct6775_attributes_pwm[0] },
2305 { .attrs = nct6775_attributes_pwm[1] },
2306 { .attrs = nct6775_attributes_pwm[2] },
2307 { .attrs = nct6775_attributes_pwm[3] },
2308 { .attrs = nct6775_attributes_pwm[4] },
2312 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2314 struct nct6775_data *data = nct6775_update_device(dev);
2315 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2317 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2321 store_auto_pwm(struct device *dev, struct device_attribute *attr,
2322 const char *buf, size_t count)
2324 struct nct6775_data *data = dev_get_drvdata(dev);
2325 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2327 int point = sattr->index;
2332 err = kstrtoul(buf, 10, &val);
2338 if (point == data->auto_pwm_num) {
2339 if (data->kind != nct6775 && !val)
2341 if (data->kind != nct6779 && val)
2345 mutex_lock(&data->update_lock);
2346 data->auto_pwm[nr][point] = val;
2347 if (point < data->auto_pwm_num) {
2348 nct6775_write_value(data,
2349 NCT6775_AUTO_PWM(data, nr, point),
2350 data->auto_pwm[nr][point]);
2352 switch (data->kind) {
2354 /* disable if needed (pwm == 0) */
2355 reg = nct6775_read_value(data,
2356 NCT6775_REG_CRITICAL_ENAB[nr]);
2361 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2365 break; /* always enabled, nothing to do */
2367 nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
2369 reg = nct6775_read_value(data,
2370 NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
2375 nct6775_write_value(data,
2376 NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
2381 mutex_unlock(&data->update_lock);
2386 show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2388 struct nct6775_data *data = nct6775_update_device(dev);
2389 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2391 int point = sattr->index;
2394 * We don't know for sure if the temperature is signed or unsigned.
2395 * Assume it is unsigned.
2397 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2401 store_auto_temp(struct device *dev, struct device_attribute *attr,
2402 const char *buf, size_t count)
2404 struct nct6775_data *data = dev_get_drvdata(dev);
2405 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2407 int point = sattr->index;
2411 err = kstrtoul(buf, 10, &val);
2417 mutex_lock(&data->update_lock);
2418 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2419 if (point < data->auto_pwm_num) {
2420 nct6775_write_value(data,
2421 NCT6775_AUTO_TEMP(data, nr, point),
2422 data->auto_temp[nr][point]);
2424 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2425 data->auto_temp[nr][point]);
2427 mutex_unlock(&data->update_lock);
2432 * The number of auto-point trip points is chip dependent.
2433 * Need to check support while generating/removing attribute files.
2435 static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
2436 SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
2437 show_auto_pwm, store_auto_pwm, 0, 0),
2438 SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
2439 show_auto_temp, store_auto_temp, 0, 0),
2440 SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2441 show_auto_temp_hyst, store_auto_temp_hyst, 0, 0),
2442 SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
2443 show_auto_pwm, store_auto_pwm, 0, 1),
2444 SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
2445 show_auto_temp, store_auto_temp, 0, 1),
2446 SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2447 show_auto_temp_hyst, store_auto_temp_hyst, 0, 1),
2448 SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
2449 show_auto_pwm, store_auto_pwm, 0, 2),
2450 SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
2451 show_auto_temp, store_auto_temp, 0, 2),
2452 SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2453 show_auto_temp_hyst, store_auto_temp_hyst, 0, 2),
2454 SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
2455 show_auto_pwm, store_auto_pwm, 0, 3),
2456 SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
2457 show_auto_temp, store_auto_temp, 0, 3),
2458 SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2459 show_auto_temp_hyst, store_auto_temp_hyst, 0, 3),
2460 SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
2461 show_auto_pwm, store_auto_pwm, 0, 4),
2462 SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
2463 show_auto_temp, store_auto_temp, 0, 4),
2464 SENSOR_ATTR_2(pwm1_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2465 show_auto_temp_hyst, store_auto_temp_hyst, 0, 4),
2466 SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
2467 show_auto_pwm, store_auto_pwm, 0, 5),
2468 SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
2469 show_auto_temp, store_auto_temp, 0, 5),
2470 SENSOR_ATTR_2(pwm1_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2471 show_auto_temp_hyst, store_auto_temp_hyst, 0, 5),
2472 SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
2473 show_auto_pwm, store_auto_pwm, 0, 6),
2474 SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
2475 show_auto_temp, store_auto_temp, 0, 6),
2476 SENSOR_ATTR_2(pwm1_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2477 show_auto_temp_hyst, store_auto_temp_hyst, 0, 6),
2479 SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
2480 show_auto_pwm, store_auto_pwm, 1, 0),
2481 SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
2482 show_auto_temp, store_auto_temp, 1, 0),
2483 SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2484 show_auto_temp_hyst, store_auto_temp_hyst, 1, 0),
2485 SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
2486 show_auto_pwm, store_auto_pwm, 1, 1),
2487 SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
2488 show_auto_temp, store_auto_temp, 1, 1),
2489 SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2490 show_auto_temp_hyst, store_auto_temp_hyst, 1, 1),
2491 SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
2492 show_auto_pwm, store_auto_pwm, 1, 2),
2493 SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
2494 show_auto_temp, store_auto_temp, 1, 2),
2495 SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2496 show_auto_temp_hyst, store_auto_temp_hyst, 1, 2),
2497 SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
2498 show_auto_pwm, store_auto_pwm, 1, 3),
2499 SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
2500 show_auto_temp, store_auto_temp, 1, 3),
2501 SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2502 show_auto_temp_hyst, store_auto_temp_hyst, 1, 3),
2503 SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
2504 show_auto_pwm, store_auto_pwm, 1, 4),
2505 SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
2506 show_auto_temp, store_auto_temp, 1, 4),
2507 SENSOR_ATTR_2(pwm2_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2508 show_auto_temp_hyst, store_auto_temp_hyst, 1, 4),
2509 SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
2510 show_auto_pwm, store_auto_pwm, 1, 5),
2511 SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
2512 show_auto_temp, store_auto_temp, 1, 5),
2513 SENSOR_ATTR_2(pwm2_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2514 show_auto_temp_hyst, store_auto_temp_hyst, 1, 5),
2515 SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
2516 show_auto_pwm, store_auto_pwm, 1, 6),
2517 SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
2518 show_auto_temp, store_auto_temp, 1, 6),
2519 SENSOR_ATTR_2(pwm2_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2520 show_auto_temp_hyst, store_auto_temp_hyst, 1, 6),
2522 SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
2523 show_auto_pwm, store_auto_pwm, 2, 0),
2524 SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
2525 show_auto_temp, store_auto_temp, 2, 0),
2526 SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2527 show_auto_temp_hyst, store_auto_temp_hyst, 2, 0),
2528 SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
2529 show_auto_pwm, store_auto_pwm, 2, 1),
2530 SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
2531 show_auto_temp, store_auto_temp, 2, 1),
2532 SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2533 show_auto_temp_hyst, store_auto_temp_hyst, 2, 1),
2534 SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
2535 show_auto_pwm, store_auto_pwm, 2, 2),
2536 SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
2537 show_auto_temp, store_auto_temp, 2, 2),
2538 SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2539 show_auto_temp_hyst, store_auto_temp_hyst, 2, 2),
2540 SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
2541 show_auto_pwm, store_auto_pwm, 2, 3),
2542 SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
2543 show_auto_temp, store_auto_temp, 2, 3),
2544 SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2545 show_auto_temp_hyst, store_auto_temp_hyst, 2, 3),
2546 SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
2547 show_auto_pwm, store_auto_pwm, 2, 4),
2548 SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
2549 show_auto_temp, store_auto_temp, 2, 4),
2550 SENSOR_ATTR_2(pwm3_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2551 show_auto_temp_hyst, store_auto_temp_hyst, 2, 4),
2552 SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
2553 show_auto_pwm, store_auto_pwm, 2, 5),
2554 SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
2555 show_auto_temp, store_auto_temp, 2, 5),
2556 SENSOR_ATTR_2(pwm3_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2557 show_auto_temp_hyst, store_auto_temp_hyst, 2, 5),
2558 SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
2559 show_auto_pwm, store_auto_pwm, 2, 6),
2560 SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
2561 show_auto_temp, store_auto_temp, 2, 6),
2562 SENSOR_ATTR_2(pwm3_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2563 show_auto_temp_hyst, store_auto_temp_hyst, 2, 6),
2565 SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
2566 show_auto_pwm, store_auto_pwm, 3, 0),
2567 SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
2568 show_auto_temp, store_auto_temp, 3, 0),
2569 SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2570 show_auto_temp_hyst, store_auto_temp_hyst, 3, 0),
2571 SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
2572 show_auto_pwm, store_auto_pwm, 3, 1),
2573 SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
2574 show_auto_temp, store_auto_temp, 3, 1),
2575 SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2576 show_auto_temp_hyst, store_auto_temp_hyst, 3, 1),
2577 SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
2578 show_auto_pwm, store_auto_pwm, 3, 2),
2579 SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
2580 show_auto_temp, store_auto_temp, 3, 2),
2581 SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2582 show_auto_temp_hyst, store_auto_temp_hyst, 3, 2),
2583 SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
2584 show_auto_pwm, store_auto_pwm, 3, 3),
2585 SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
2586 show_auto_temp, store_auto_temp, 3, 3),
2587 SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2588 show_auto_temp_hyst, store_auto_temp_hyst, 3, 3),
2589 SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
2590 show_auto_pwm, store_auto_pwm, 3, 4),
2591 SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
2592 show_auto_temp, store_auto_temp, 3, 4),
2593 SENSOR_ATTR_2(pwm4_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2594 show_auto_temp_hyst, store_auto_temp_hyst, 3, 4),
2595 SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
2596 show_auto_pwm, store_auto_pwm, 3, 5),
2597 SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
2598 show_auto_temp, store_auto_temp, 3, 5),
2599 SENSOR_ATTR_2(pwm4_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2600 show_auto_temp_hyst, store_auto_temp_hyst, 3, 5),
2601 SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
2602 show_auto_pwm, store_auto_pwm, 3, 6),
2603 SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
2604 show_auto_temp, store_auto_temp, 3, 6),
2605 SENSOR_ATTR_2(pwm4_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2606 show_auto_temp_hyst, store_auto_temp_hyst, 3, 6),
2608 SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
2609 show_auto_pwm, store_auto_pwm, 4, 0),
2610 SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
2611 show_auto_temp, store_auto_temp, 4, 0),
2612 SENSOR_ATTR_2(pwm5_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2613 show_auto_temp_hyst, store_auto_temp_hyst, 4, 0),
2614 SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
2615 show_auto_pwm, store_auto_pwm, 4, 1),
2616 SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
2617 show_auto_temp, store_auto_temp, 4, 1),
2618 SENSOR_ATTR_2(pwm5_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2619 show_auto_temp_hyst, store_auto_temp_hyst, 4, 1),
2620 SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
2621 show_auto_pwm, store_auto_pwm, 4, 2),
2622 SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
2623 show_auto_temp, store_auto_temp, 4, 2),
2624 SENSOR_ATTR_2(pwm5_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2625 show_auto_temp_hyst, store_auto_temp_hyst, 4, 2),
2626 SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
2627 show_auto_pwm, store_auto_pwm, 4, 3),
2628 SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
2629 show_auto_temp, store_auto_temp, 4, 3),
2630 SENSOR_ATTR_2(pwm5_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2631 show_auto_temp_hyst, store_auto_temp_hyst, 4, 3),
2632 SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
2633 show_auto_pwm, store_auto_pwm, 4, 4),
2634 SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
2635 show_auto_temp, store_auto_temp, 4, 4),
2636 SENSOR_ATTR_2(pwm5_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2637 show_auto_temp_hyst, store_auto_temp_hyst, 4, 4),
2638 SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
2639 show_auto_pwm, store_auto_pwm, 4, 5),
2640 SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
2641 show_auto_temp, store_auto_temp, 4, 5),
2642 SENSOR_ATTR_2(pwm5_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2643 show_auto_temp_hyst, store_auto_temp_hyst, 4, 5),
2644 SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
2645 show_auto_pwm, store_auto_pwm, 4, 6),
2646 SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
2647 show_auto_temp, store_auto_temp, 4, 6),
2648 SENSOR_ATTR_2(pwm5_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2649 show_auto_temp_hyst, store_auto_temp_hyst, 4, 6),
2653 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
2655 struct nct6775_data *data = dev_get_drvdata(dev);
2656 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
2659 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
2661 /* Case open detection */
2664 show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
2666 struct nct6775_data *data = nct6775_update_device(dev);
2668 return sprintf(buf, "%d\n",
2669 !!(data->caseopen & to_sensor_dev_attr_2(attr)->index));
2673 clear_caseopen(struct device *dev, struct device_attribute *attr,
2674 const char *buf, size_t count)
2676 struct nct6775_data *data = dev_get_drvdata(dev);
2677 struct nct6775_sio_data *sio_data = dev->platform_data;
2678 int nr = to_sensor_dev_attr(attr)->index;
2682 if (kstrtoul(buf, 10, &val) || val != 0)
2685 mutex_lock(&data->update_lock);
2688 * Use CR registers to clear caseopen status.
2689 * The CR registers are the same for all chips, and not all chips
2690 * support clearing the caseopen status through "regular" registers.
2692 superio_enter(sio_data->sioreg);
2693 superio_select(sio_data->sioreg, NCT6775_LD_ACPI);
2694 reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
2695 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2696 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2697 superio_exit(sio_data->sioreg);
2699 data->valid = 0; /* Force cache refresh */
2701 mutex_unlock(&data->update_lock);
2706 static struct sensor_device_attribute sda_caseopen[] = {
2707 SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2709 SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2714 * Driver and device management
2717 static void nct6775_device_remove_files(struct device *dev)
2720 * some entries in the following arrays may not have been used in
2721 * device_create_file(), but device_remove_file() will ignore them
2724 struct nct6775_data *data = dev_get_drvdata(dev);
2726 for (i = 0; i < data->pwm_num; i++)
2727 sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
2729 for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++)
2730 device_remove_file(dev, &sda_weight_duty_base[i].dev_attr);
2732 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)
2733 device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
2735 for (i = 0; i < data->in_num; i++)
2736 sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
2738 for (i = 0; i < 5; i++) {
2739 device_remove_file(dev, &sda_fan_input[i].dev_attr);
2740 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
2741 device_remove_file(dev, &sda_fan_div[i].dev_attr);
2742 device_remove_file(dev, &sda_fan_min[i].dev_attr);
2744 for (i = 0; i < NUM_REG_TEMP; i++) {
2745 if (!(data->have_temp & (1 << i)))
2747 device_remove_file(dev, &sda_temp_input[i].dev_attr);
2748 device_remove_file(dev, &sda_temp_label[i].dev_attr);
2749 device_remove_file(dev, &sda_temp_max[i].dev_attr);
2750 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
2753 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
2754 device_remove_file(dev, &sda_temp_type[i].dev_attr);
2755 device_remove_file(dev, &sda_temp_offset[i].dev_attr);
2758 device_remove_file(dev, &sda_caseopen[0].dev_attr);
2759 device_remove_file(dev, &sda_caseopen[1].dev_attr);
2761 device_remove_file(dev, &dev_attr_name);
2762 device_remove_file(dev, &dev_attr_cpu0_vid);
2765 /* Get the monitoring functions started */
2766 static inline void __devinit nct6775_init_device(struct nct6775_data *data)
2771 /* Start monitoring if needed */
2772 if (data->REG_CONFIG) {
2773 tmp = nct6775_read_value(data, data->REG_CONFIG);
2775 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
2778 /* Enable temperature sensors if needed */
2779 for (i = 0; i < NUM_REG_TEMP; i++) {
2780 if (!(data->have_temp & (1 << i)))
2782 if (!data->reg_temp_config[i])
2784 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
2786 nct6775_write_value(data, data->reg_temp_config[i],
2790 /* Enable VBAT monitoring if needed */
2791 tmp = nct6775_read_value(data, data->REG_VBAT);
2793 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
2795 for (i = 0; i < 3; i++) {
2796 const char *label = NULL;
2798 if (data->temp_label)
2799 label = data->temp_label[data->temp_src[i]];
2801 /* Digital source overrides analog type */
2802 if (label && strncmp(label, "PECI", 4) == 0)
2803 data->temp_type[i] = 6;
2804 else if (label && strncmp(label, "AMD", 3) == 0)
2805 data->temp_type[i] = 5;
2806 else if ((tmp & (0x02 << i)))
2807 data->temp_type[i] = 1; /* diode */
2809 data->temp_type[i] = 4; /* thermistor */
2813 static void w82627ehf_swap_tempreg(struct nct6775_data *data,
2818 tmp = data->temp_src[r1];
2819 data->temp_src[r1] = data->temp_src[r2];
2820 data->temp_src[r2] = tmp;
2822 for (i = 0; i < 3; i++) {
2823 tmp = data->reg_temp[i][r1];
2824 data->reg_temp[i][r1] = data->reg_temp[i][r2];
2825 data->reg_temp[i][r2] = tmp;
2828 tmp = data->reg_temp_config[r1];
2829 data->reg_temp_config[r1] = data->reg_temp_config[r2];
2830 data->reg_temp_config[r2] = tmp;
2833 static void __devinit
2834 nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data,
2835 struct nct6775_data *data)
2838 bool fan3pin, fan3min, fan4pin, fan4min, fan5pin;
2839 bool pwm3pin, pwm4pin, pwm5pin;
2841 superio_enter(sio_data->sioreg);
2843 /* fan4 and fan5 share some pins with the GPIO and serial flash */
2844 if (data->kind == nct6775) {
2845 regval = superio_inb(sio_data->sioreg, 0x2c);
2847 fan3pin = regval & (1 << 6);
2849 pwm3pin = regval & (1 << 7);
2851 /* On NCT6775, fan4 shares pins with the fdc interface */
2852 fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80);
2857 } else if (data->kind == nct6776) {
2858 bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
2860 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
2861 regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
2866 fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
2871 fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01;
2876 fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02;
2883 } else { /* NCT6779D */
2884 regval = superio_inb(sio_data->sioreg, 0x1c);
2886 fan3pin = !(regval & (1 << 5));
2887 fan4pin = !(regval & (1 << 6));
2888 fan5pin = !(regval & (1 << 7));
2890 pwm3pin = !(regval & (1 << 0));
2891 pwm4pin = !(regval & (1 << 1));
2892 pwm5pin = !(regval & (1 << 2));
2898 superio_exit(sio_data->sioreg);
2900 data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */
2901 data->has_fan |= (fan3pin << 2);
2902 data->has_fan_min |= (fan3min << 2);
2904 data->has_fan |= (fan4pin << 3) | (fan5pin << 4);
2905 data->has_fan_min |= (fan4min << 3) | (fan5pin << 4);
2907 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4);
2910 static int __devinit nct6775_probe(struct platform_device *pdev)
2912 struct device *dev = &pdev->dev;
2913 struct nct6775_sio_data *sio_data = dev->platform_data;
2914 struct nct6775_data *data;
2915 struct resource *res;
2918 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
2920 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
2921 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
2923 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
2924 (unsigned long)res->start,
2925 (unsigned long)res->start + IOREGION_LENGTH - 1);
2929 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
2936 data->kind = sio_data->kind;
2937 data->addr = res->start;
2938 mutex_init(&data->lock);
2939 mutex_init(&data->update_lock);
2940 data->name = nct6775_device_names[data->kind];
2941 platform_set_drvdata(pdev, data);
2943 switch (data->kind) {
2946 data->have_in = 0x1ff;
2948 data->auto_pwm_num = 6;
2949 data->has_fan_div = true;
2951 data->fan_from_reg = fan_from_reg16;
2952 data->fan_from_reg_min = fan_from_reg8;
2954 data->REG_CONFIG = NCT6775_REG_CONFIG;
2955 data->REG_VBAT = NCT6775_REG_VBAT;
2956 data->REG_VIN = NCT6775_REG_IN;
2957 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
2958 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
2959 data->REG_TARGET = NCT6775_REG_TARGET;
2960 data->REG_FAN = NCT6775_REG_FAN;
2961 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
2962 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
2963 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
2964 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
2965 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
2966 data->REG_PWM[0] = NCT6775_REG_PWM;
2967 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
2968 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
2969 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
2970 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
2971 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
2972 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
2973 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
2974 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
2975 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
2976 data->REG_CRITICAL_TEMP_TOLERANCE
2977 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
2978 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
2979 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
2980 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
2981 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
2982 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
2983 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
2984 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
2985 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
2986 data->REG_ALARM = NCT6775_REG_ALARM;
2987 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
2988 data->CASEOPEN_MASK = NCT6775_CASEOPEN_MASK;
2990 reg_temp = NCT6775_REG_TEMP;
2991 reg_temp_over = NCT6775_REG_TEMP_OVER;
2992 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
2993 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
2998 data->have_in = 0x1ff;
3000 data->auto_pwm_num = 4;
3001 data->has_fan_div = false;
3002 data->fan_from_reg = fan_from_reg13;
3003 data->fan_from_reg_min = fan_from_reg13;
3005 data->REG_CONFIG = NCT6775_REG_CONFIG;
3006 data->REG_VBAT = NCT6775_REG_VBAT;
3007 data->REG_VIN = NCT6775_REG_IN;
3008 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3009 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3010 data->REG_TARGET = NCT6775_REG_TARGET;
3011 data->REG_FAN = NCT6775_REG_FAN;
3012 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3013 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3014 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3015 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3016 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3017 data->REG_PWM[0] = NCT6775_REG_PWM;
3018 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3019 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3020 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3021 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3022 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3023 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3024 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3025 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3026 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3027 data->REG_CRITICAL_TEMP_TOLERANCE
3028 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3029 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3030 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3031 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3032 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3033 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3034 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3035 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3036 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3037 data->REG_WEIGHT_DUTY[1] = NCT6776_REG_WEIGHT_DUTY_BASE;
3038 data->REG_ALARM = NCT6775_REG_ALARM;
3039 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3040 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
3042 reg_temp = NCT6775_REG_TEMP;
3043 reg_temp_over = NCT6775_REG_TEMP_OVER;
3044 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3045 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3050 data->have_in = 0x7fff;
3052 data->auto_pwm_num = 4;
3053 data->has_fan_div = false;
3055 data->fan_from_reg = fan_from_reg13;
3056 data->fan_from_reg_min = fan_from_reg13;
3058 data->REG_CONFIG = NCT6775_REG_CONFIG;
3059 data->REG_VBAT = NCT6775_REG_VBAT;
3060 data->REG_VIN = NCT6779_REG_IN;
3061 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3062 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3063 data->REG_TARGET = NCT6775_REG_TARGET;
3064 data->REG_FAN = NCT6779_REG_FAN;
3065 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3066 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3067 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3068 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3069 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3070 data->REG_PWM[0] = NCT6775_REG_PWM;
3071 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3072 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3073 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3074 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3075 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3076 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3077 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3078 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3079 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3080 data->REG_CRITICAL_TEMP_TOLERANCE
3081 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3082 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3083 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3084 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3085 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3086 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3087 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3088 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3089 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3090 data->REG_WEIGHT_DUTY[1] = NCT6776_REG_WEIGHT_DUTY_BASE;
3091 data->REG_ALARM = NCT6779_REG_ALARM;
3092 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3093 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
3095 reg_temp = NCT6779_REG_TEMP;
3096 reg_temp_over = NCT6775_REG_TEMP_OVER;
3097 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3098 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3106 /* Default to no temperature inputs, code below will adjust as needed */
3107 data->have_temp = 0;
3109 for (i = 0; i < NUM_REG_TEMP; i++) {
3110 if (reg_temp[i] == 0)
3113 data->reg_temp[0][i] = reg_temp[i];
3114 data->reg_temp[1][i] = reg_temp_over[i];
3115 data->reg_temp[2][i] = reg_temp_hyst[i];
3116 data->reg_temp_config[i] = reg_temp_config[i];
3118 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]);
3121 if (src && !(mask & (1 << src))) {
3122 data->have_temp |= 1 << i;
3126 data->temp_src[i] = src;
3129 * Do some register swapping if index 0..2 don't
3130 * point to SYSTIN(1), CPUIN(2), and AUXIN(3).
3131 * Idea is to have the first three attributes
3132 * report SYSTIN, CPUIN, and AUXIN if possible
3133 * without overriding the basic system configuration.
3134 * Do this only for the first six temperature sources;
3135 * the remaining temperatures are fan control sources,
3136 * and we don't want to touch those.
3138 if (i > 0 && data->temp_src[0] != 1
3139 && data->temp_src[i] == 1)
3140 w82627ehf_swap_tempreg(data, 0, i);
3141 if (i > 1 && data->temp_src[1] != 2
3142 && data->temp_src[i] == 2)
3143 w82627ehf_swap_tempreg(data, 1, i);
3144 if (i > 2 && data->temp_src[2] != 3
3145 && data->temp_src[i] == 3)
3146 w82627ehf_swap_tempreg(data, 2, i);
3148 data->have_temp_offset = data->have_temp & 0x07;
3149 for (i = 0; i < 3; i++) {
3150 if (data->temp_src[i] > 3)
3151 data->have_temp_offset &= ~(1 << i);
3154 switch (data->kind) {
3156 data->temp_label = nct6775_temp_label;
3160 * On NCT6776, AUXTIN and VIN3 pins are shared.
3161 * Only way to detect it is to check if AUXTIN is used
3162 * as a temperature source, and if that source is
3165 * If that is the case, disable in6, which reports VIN3.
3166 * Otherwise disable temp3.
3168 if (data->temp_src[2] == 3) {
3171 if (data->reg_temp_config[2])
3172 reg = nct6775_read_value(data,
3173 data->reg_temp_config[2]);
3175 reg = 0; /* Assume AUXTIN is used */
3178 data->have_temp &= ~(1 << 2);
3180 data->have_in &= ~(1 << 6);
3182 data->temp_label = nct6776_temp_label;
3191 * Assume voltage is disabled if the respective temperature is
3192 * used as temperature source.
3194 for (i = 0; i < ARRAY_SIZE(NCT6779_REG_TEMP); i++) {
3195 if (!(data->have_temp & (1 << i)))
3197 if (data->temp_src[i] == 3) /* AUXTIN0 */
3198 data->have_in &= ~(1 << 6); /* no VIN4 */
3199 if (data->temp_src[i] == 4) /* AUXTIN1 */
3200 data->have_in &= ~(1 << 10); /* no VIN5 */
3201 if (data->temp_src[i] == 5) /* AUXTIN2 */
3202 data->have_in &= ~(1 << 11); /* no VIN6 */
3203 if (data->temp_src[i] == 6) /* AUXTIN0 */
3204 data->have_in &= ~(1 << 14); /* no VIN7 */
3206 data->temp_label = nct6779_temp_label;
3210 /* Initialize the chip */
3211 nct6775_init_device(data);
3213 data->vrm = vid_which_vrm();
3214 superio_enter(sio_data->sioreg);
3217 * We can get the VID input values directly at logical device D 0xe3.
3219 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3220 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3221 err = device_create_file(dev, &dev_attr_cpu0_vid);
3228 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3229 tmp = superio_inb(sio_data->sioreg,
3230 NCT6775_REG_CR_FAN_DEBOUNCE);
3231 switch (data->kind) {
3240 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3242 pr_info("Enabled fan debounce for chip %s\n", data->name);
3245 superio_exit(sio_data->sioreg);
3247 nct6775_check_fan_inputs(sio_data, data);
3249 /* Read fan clock dividers immediately */
3250 nct6775_update_fan_div_common(dev, data);
3252 /* Register sysfs hooks */
3253 for (i = 0; i < data->pwm_num; i++) {
3254 if (!(data->has_pwm & (1 << i)))
3257 err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
3261 if (data->REG_WEIGHT_DUTY[1]) {
3262 err = device_create_file(dev,
3263 &sda_weight_duty_base[i].dev_attr);
3268 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
3269 struct sensor_device_attribute_2 *attr =
3270 &sda_auto_pwm_arrays[i];
3272 if (!(data->has_pwm & (1 << attr->nr)))
3274 if (attr->index > data->auto_pwm_num)
3276 err = device_create_file(dev, &attr->dev_attr);
3281 for (i = 0; i < data->in_num; i++) {
3282 if (!(data->have_in & (1 << i)))
3284 err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]);
3289 for (i = 0; i < 5; i++) {
3290 if (data->has_fan & (1 << i)) {
3291 err = device_create_file(dev,
3292 &sda_fan_input[i].dev_attr);
3295 err = device_create_file(dev,
3296 &sda_fan_alarm[i].dev_attr);
3299 if (data->kind != nct6776 &&
3300 data->kind != nct6779) {
3301 err = device_create_file(dev,
3302 &sda_fan_div[i].dev_attr);
3306 if (data->has_fan_min & (1 << i)) {
3307 err = device_create_file(dev,
3308 &sda_fan_min[i].dev_attr);
3315 for (i = 0; i < NUM_REG_TEMP; i++) {
3316 if (!(data->have_temp & (1 << i)))
3318 err = device_create_file(dev, &sda_temp_input[i].dev_attr);
3321 if (data->temp_label) {
3322 err = device_create_file(dev,
3323 &sda_temp_label[i].dev_attr);
3327 if (data->reg_temp[1][i]) {
3328 err = device_create_file(dev,
3329 &sda_temp_max[i].dev_attr);
3333 if (data->reg_temp[2][i]) {
3334 err = device_create_file(dev,
3335 &sda_temp_max_hyst[i].dev_attr);
3341 err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
3344 err = device_create_file(dev, &sda_temp_type[i].dev_attr);
3347 if (data->have_temp_offset & (1 << i)) {
3348 err = device_create_file(dev,
3349 &sda_temp_offset[i].dev_attr);
3355 for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
3356 if (!data->CASEOPEN_MASK[i])
3358 err = device_create_file(dev, &sda_caseopen[i].dev_attr);
3363 err = device_create_file(dev, &dev_attr_name);
3367 data->hwmon_dev = hwmon_device_register(dev);
3368 if (IS_ERR(data->hwmon_dev)) {
3369 err = PTR_ERR(data->hwmon_dev);
3376 nct6775_device_remove_files(dev);
3378 release_region(res->start, IOREGION_LENGTH);
3383 static int __devexit nct6775_remove(struct platform_device *pdev)
3385 struct nct6775_data *data = platform_get_drvdata(pdev);
3387 hwmon_device_unregister(data->hwmon_dev);
3388 nct6775_device_remove_files(&pdev->dev);
3389 release_region(data->addr, IOREGION_LENGTH);
3394 static struct platform_driver nct6775_driver = {
3396 .owner = THIS_MODULE,
3399 .probe = nct6775_probe,
3400 .remove = __devexit_p(nct6775_remove),
3403 /* nct6775_find() looks for a '627 in the Super-I/O config space */
3404 static int __init nct6775_find(int sioaddr, unsigned short *addr,
3405 struct nct6775_sio_data *sio_data)
3407 static const char __initdata sio_name_NCT6775[] = "NCT6775F";
3408 static const char __initdata sio_name_NCT6776[] = "NCT6776F";
3409 static const char __initdata sio_name_NCT6779[] = "NCT6779D";
3412 const char *sio_name;
3414 superio_enter(sioaddr);
3419 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
3420 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
3421 switch (val & SIO_ID_MASK) {
3422 case SIO_NCT6775_ID:
3423 sio_data->kind = nct6775;
3424 sio_name = sio_name_NCT6775;
3426 case SIO_NCT6776_ID:
3427 sio_data->kind = nct6776;
3428 sio_name = sio_name_NCT6776;
3430 case SIO_NCT6779_ID:
3431 sio_data->kind = nct6779;
3432 sio_name = sio_name_NCT6779;
3436 pr_debug("unsupported chip ID: 0x%04x\n", val);
3437 superio_exit(sioaddr);
3441 /* We have a known chip, find the HWM I/O address */
3442 superio_select(sioaddr, NCT6775_LD_HWM);
3443 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
3444 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
3445 *addr = val & IOREGION_ALIGNMENT;
3447 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
3448 superio_exit(sioaddr);
3452 /* Activate logical device if needed */
3453 val = superio_inb(sioaddr, SIO_REG_ENABLE);
3454 if (!(val & 0x01)) {
3455 pr_warn("Forcibly enabling Super-I/O. "
3456 "Sensor is probably unusable.\n");
3457 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
3460 superio_exit(sioaddr);
3461 pr_info("Found %s chip at %#x\n", sio_name, *addr);
3462 sio_data->sioreg = sioaddr;
3468 * when Super-I/O functions move to a separate file, the Super-I/O
3469 * bus will manage the lifetime of the device and this module will only keep
3470 * track of the nct6775 driver. But since we platform_device_alloc(), we
3471 * must keep track of the device
3473 static struct platform_device *pdev;
3475 static int __init sensors_nct6775_init(void)
3478 unsigned short address;
3479 struct resource res;
3480 struct nct6775_sio_data sio_data;
3483 * initialize sio_data->kind and sio_data->sioreg.
3485 * when Super-I/O functions move to a separate file, the Super-I/O
3486 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
3487 * nct6775 hardware monitor, and call probe()
3489 if (nct6775_find(0x2e, &address, &sio_data) &&
3490 nct6775_find(0x4e, &address, &sio_data))
3493 err = platform_driver_register(&nct6775_driver);
3497 pdev = platform_device_alloc(DRVNAME, address);
3500 pr_err("Device allocation failed\n");
3501 goto exit_unregister;
3504 err = platform_device_add_data(pdev, &sio_data,
3505 sizeof(struct nct6775_sio_data));
3507 pr_err("Platform data allocation failed\n");
3508 goto exit_device_put;
3511 memset(&res, 0, sizeof(res));
3513 res.start = address + IOREGION_OFFSET;
3514 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
3515 res.flags = IORESOURCE_IO;
3517 err = acpi_check_resource_conflict(&res);
3519 goto exit_device_put;
3521 err = platform_device_add_resources(pdev, &res, 1);
3523 pr_err("Device resource addition failed (%d)\n", err);
3524 goto exit_device_put;
3527 /* platform_device_add calls probe() */
3528 err = platform_device_add(pdev);
3530 pr_err("Device addition failed (%d)\n", err);
3531 goto exit_device_put;
3537 platform_device_put(pdev);
3539 platform_driver_unregister(&nct6775_driver);
3544 static void __exit sensors_nct6775_exit(void)
3546 platform_device_unregister(pdev);
3547 platform_driver_unregister(&nct6775_driver);
3550 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
3551 MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver");
3552 MODULE_LICENSE("GPL");
3554 module_init(sensors_nct6775_init);
3555 module_exit(sensors_nct6775_exit);