2 * dme1737.c - Driver for the SMSC DME1737, Asus A8000, SMSC SCH311x, SCH5027,
3 * and SCH5127 Super-I/O chips integrated hardware monitoring
5 * Copyright (c) 2007, 2008, 2009, 2010 Juerg Haefliger <juergh@gmail.com>
7 * This driver is an I2C/ISA hybrid, meaning that it uses the I2C bus to access
8 * the chip registers if a DME1737, A8000, or SCH5027 is found and the ISA bus
9 * if a SCH311x or SCH5127 chip is found. Both types of chips have very
10 * similar hardware monitoring capabilities but differ in the way they can be
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/jiffies.h>
34 #include <linux/i2c.h>
35 #include <linux/platform_device.h>
36 #include <linux/hwmon.h>
37 #include <linux/hwmon-sysfs.h>
38 #include <linux/hwmon-vid.h>
39 #include <linux/err.h>
40 #include <linux/mutex.h>
41 #include <linux/acpi.h>
44 /* ISA device, if found */
45 static struct platform_device *pdev;
47 /* Module load parameters */
48 static bool force_start;
49 module_param(force_start, bool, 0);
50 MODULE_PARM_DESC(force_start, "Force the chip to start monitoring inputs");
52 static unsigned short force_id;
53 module_param(force_id, ushort, 0);
54 MODULE_PARM_DESC(force_id, "Override the detected device ID");
56 static bool probe_all_addr;
57 module_param(probe_all_addr, bool, 0);
58 MODULE_PARM_DESC(probe_all_addr, "Include probing of non-standard LPC "
61 /* Addresses to scan */
62 static const unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END};
64 enum chips { dme1737, sch5027, sch311x, sch5127 };
66 /* ---------------------------------------------------------------------
69 * The sensors are defined as follows:
71 * Voltages Temperatures
72 * -------- ------------
73 * in0 +5VTR (+5V stdby) temp1 Remote diode 1
74 * in1 Vccp (proc core) temp2 Internal temp
75 * in2 VCC (internal +3.3V) temp3 Remote diode 2
78 * in5 VTR (+3.3V stby)
80 * in7 Vtrip (sch5127 only)
82 * --------------------------------------------------------------------- */
84 /* Voltages (in) numbered 0-7 (ix) */
85 #define DME1737_REG_IN(ix) ((ix) < 5 ? 0x20 + (ix) : \
86 (ix) < 7 ? 0x94 + (ix) : \
88 #define DME1737_REG_IN_MIN(ix) ((ix) < 5 ? 0x44 + (ix) * 2 \
90 #define DME1737_REG_IN_MAX(ix) ((ix) < 5 ? 0x45 + (ix) * 2 \
93 /* Temperatures (temp) numbered 0-2 (ix) */
94 #define DME1737_REG_TEMP(ix) (0x25 + (ix))
95 #define DME1737_REG_TEMP_MIN(ix) (0x4e + (ix) * 2)
96 #define DME1737_REG_TEMP_MAX(ix) (0x4f + (ix) * 2)
97 #define DME1737_REG_TEMP_OFFSET(ix) ((ix) == 0 ? 0x1f \
101 * Voltage and temperature LSBs
102 * The LSBs (4 bits each) are stored in 5 registers with the following layouts:
103 * IN_TEMP_LSB(0) = [in5, in6]
104 * IN_TEMP_LSB(1) = [temp3, temp1]
105 * IN_TEMP_LSB(2) = [in4, temp2]
106 * IN_TEMP_LSB(3) = [in3, in0]
107 * IN_TEMP_LSB(4) = [in2, in1]
108 * IN_TEMP_LSB(5) = [res, in7]
110 #define DME1737_REG_IN_TEMP_LSB(ix) (0x84 + (ix))
111 static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0, 5};
112 static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4, 4};
113 static const u8 DME1737_REG_TEMP_LSB[] = {1, 2, 1};
114 static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0};
116 /* Fans numbered 0-5 (ix) */
117 #define DME1737_REG_FAN(ix) ((ix) < 4 ? 0x28 + (ix) * 2 \
119 #define DME1737_REG_FAN_MIN(ix) ((ix) < 4 ? 0x54 + (ix) * 2 \
121 #define DME1737_REG_FAN_OPT(ix) ((ix) < 4 ? 0x90 + (ix) \
123 #define DME1737_REG_FAN_MAX(ix) (0xb4 + (ix)) /* only for fan[4-5] */
125 /* PWMs numbered 0-2, 4-5 (ix) */
126 #define DME1737_REG_PWM(ix) ((ix) < 3 ? 0x30 + (ix) \
128 #define DME1737_REG_PWM_CONFIG(ix) (0x5c + (ix)) /* only for pwm[0-2] */
129 #define DME1737_REG_PWM_MIN(ix) (0x64 + (ix)) /* only for pwm[0-2] */
130 #define DME1737_REG_PWM_FREQ(ix) ((ix) < 3 ? 0x5f + (ix) \
133 * The layout of the ramp rate registers is different from the other pwm
134 * registers. The bits for the 3 PWMs are stored in 2 registers:
135 * PWM_RR(0) = [OFF3, OFF2, OFF1, RES, RR1E, RR1-2, RR1-1, RR1-0]
136 * PWM_RR(1) = [RR2E, RR2-2, RR2-1, RR2-0, RR3E, RR3-2, RR3-1, RR3-0]
138 #define DME1737_REG_PWM_RR(ix) (0x62 + (ix)) /* only for pwm[0-2] */
140 /* Thermal zones 0-2 */
141 #define DME1737_REG_ZONE_LOW(ix) (0x67 + (ix))
142 #define DME1737_REG_ZONE_ABS(ix) (0x6a + (ix))
144 * The layout of the hysteresis registers is different from the other zone
145 * registers. The bits for the 3 zones are stored in 2 registers:
146 * ZONE_HYST(0) = [H1-3, H1-2, H1-1, H1-0, H2-3, H2-2, H2-1, H2-0]
147 * ZONE_HYST(1) = [H3-3, H3-2, H3-1, H3-0, RES, RES, RES, RES]
149 #define DME1737_REG_ZONE_HYST(ix) (0x6d + (ix))
152 * Alarm registers and bit mapping
153 * The 3 8-bit alarm registers will be concatenated to a single 32-bit
154 * alarm value [0, ALARM3, ALARM2, ALARM1].
156 #define DME1737_REG_ALARM1 0x41
157 #define DME1737_REG_ALARM2 0x42
158 #define DME1737_REG_ALARM3 0x83
159 static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17, 18};
160 static const u8 DME1737_BIT_ALARM_TEMP[] = {4, 5, 6};
161 static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23};
163 /* Miscellaneous registers */
164 #define DME1737_REG_DEVICE 0x3d
165 #define DME1737_REG_COMPANY 0x3e
166 #define DME1737_REG_VERSTEP 0x3f
167 #define DME1737_REG_CONFIG 0x40
168 #define DME1737_REG_CONFIG2 0x7f
169 #define DME1737_REG_VID 0x43
170 #define DME1737_REG_TACH_PWM 0x81
172 /* ---------------------------------------------------------------------
174 * --------------------------------------------------------------------- */
176 /* Chip identification */
177 #define DME1737_COMPANY_SMSC 0x5c
178 #define DME1737_VERSTEP 0x88
179 #define DME1737_VERSTEP_MASK 0xf8
180 #define SCH311X_DEVICE 0x8c
181 #define SCH5027_VERSTEP 0x69
182 #define SCH5127_DEVICE 0x8e
184 /* Device ID values (global configuration register index 0x20) */
185 #define DME1737_ID_1 0x77
186 #define DME1737_ID_2 0x78
187 #define SCH3112_ID 0x7c
188 #define SCH3114_ID 0x7d
189 #define SCH3116_ID 0x7f
190 #define SCH5027_ID 0x89
191 #define SCH5127_ID 0x86
193 /* Length of ISA address segment */
194 #define DME1737_EXTENT 2
196 /* chip-dependent features */
197 #define HAS_TEMP_OFFSET (1 << 0) /* bit 0 */
198 #define HAS_VID (1 << 1) /* bit 1 */
199 #define HAS_ZONE3 (1 << 2) /* bit 2 */
200 #define HAS_ZONE_HYST (1 << 3) /* bit 3 */
201 #define HAS_PWM_MIN (1 << 4) /* bit 4 */
202 #define HAS_FAN(ix) (1 << ((ix) + 5)) /* bits 5-10 */
203 #define HAS_PWM(ix) (1 << ((ix) + 11)) /* bits 11-16 */
204 #define HAS_IN7 (1 << 17) /* bit 17 */
206 /* ---------------------------------------------------------------------
207 * Data structures and manipulation thereof
208 * --------------------------------------------------------------------- */
210 struct dme1737_data {
211 struct i2c_client *client; /* for I2C devices only */
212 struct device *hwmon_dev;
214 unsigned int addr; /* for ISA devices only */
216 struct mutex update_lock;
217 int valid; /* !=0 if following fields are valid */
218 unsigned long last_update; /* in jiffies */
219 unsigned long last_vbat; /* in jiffies */
221 const int *in_nominal; /* pointer to IN_NOMINAL array */
227 /* Register values */
254 /* Nominal voltage values */
255 static const int IN_NOMINAL_DME1737[] = {5000, 2250, 3300, 5000, 12000, 3300,
257 static const int IN_NOMINAL_SCH311x[] = {2500, 1500, 3300, 5000, 12000, 3300,
259 static const int IN_NOMINAL_SCH5027[] = {5000, 2250, 3300, 1125, 1125, 3300,
261 static const int IN_NOMINAL_SCH5127[] = {2500, 2250, 3300, 1125, 1125, 3300,
263 #define IN_NOMINAL(type) ((type) == sch311x ? IN_NOMINAL_SCH311x : \
264 (type) == sch5027 ? IN_NOMINAL_SCH5027 : \
265 (type) == sch5127 ? IN_NOMINAL_SCH5127 : \
270 * Voltage inputs have 16 bits resolution, limit values have 8 bits
273 static inline int IN_FROM_REG(int reg, int nominal, int res)
275 return (reg * nominal + (3 << (res - 3))) / (3 << (res - 2));
278 static inline int IN_TO_REG(int val, int nominal)
280 return SENSORS_LIMIT((val * 192 + nominal / 2) / nominal, 0, 255);
285 * The register values represent temperatures in 2's complement notation from
286 * -127 degrees C to +127 degrees C. Temp inputs have 16 bits resolution, limit
287 * values have 8 bits resolution.
289 static inline int TEMP_FROM_REG(int reg, int res)
291 return (reg * 1000) >> (res - 8);
294 static inline int TEMP_TO_REG(int val)
296 return SENSORS_LIMIT((val < 0 ? val - 500 : val + 500) / 1000,
300 /* Temperature range */
301 static const int TEMP_RANGE[] = {2000, 2500, 3333, 4000, 5000, 6666, 8000,
302 10000, 13333, 16000, 20000, 26666, 32000,
303 40000, 53333, 80000};
305 static inline int TEMP_RANGE_FROM_REG(int reg)
307 return TEMP_RANGE[(reg >> 4) & 0x0f];
310 static int TEMP_RANGE_TO_REG(int val, int reg)
314 for (i = 15; i > 0; i--) {
315 if (val > (TEMP_RANGE[i] + TEMP_RANGE[i - 1] + 1) / 2)
319 return (reg & 0x0f) | (i << 4);
323 * Temperature hysteresis
325 * reg[0] = [H1-3, H1-2, H1-1, H1-0, H2-3, H2-2, H2-1, H2-0]
326 * reg[1] = [H3-3, H3-2, H3-1, H3-0, xxxx, xxxx, xxxx, xxxx]
328 static inline int TEMP_HYST_FROM_REG(int reg, int ix)
330 return (((ix == 1) ? reg : reg >> 4) & 0x0f) * 1000;
333 static inline int TEMP_HYST_TO_REG(int val, int ix, int reg)
335 int hyst = SENSORS_LIMIT((val + 500) / 1000, 0, 15);
337 return (ix == 1) ? (reg & 0xf0) | hyst : (reg & 0x0f) | (hyst << 4);
341 static inline int FAN_FROM_REG(int reg, int tpc)
346 return (reg == 0 || reg == 0xffff) ? 0 : 90000 * 60 / reg;
349 static inline int FAN_TO_REG(int val, int tpc)
352 return SENSORS_LIMIT(val / tpc, 0, 0xffff);
354 return (val <= 0) ? 0xffff :
355 SENSORS_LIMIT(90000 * 60 / val, 0, 0xfffe);
360 * Fan TPC (tach pulse count)
361 * Converts a register value to a TPC multiplier or returns 0 if the tachometer
362 * is configured in legacy (non-tpc) mode
364 static inline int FAN_TPC_FROM_REG(int reg)
366 return (reg & 0x20) ? 0 : 60 >> (reg & 0x03);
371 * The type of a fan is expressed in number of pulses-per-revolution that it
374 static inline int FAN_TYPE_FROM_REG(int reg)
376 int edge = (reg >> 1) & 0x03;
378 return (edge > 0) ? 1 << (edge - 1) : 0;
381 static inline int FAN_TYPE_TO_REG(int val, int reg)
383 int edge = (val == 4) ? 3 : val;
385 return (reg & 0xf9) | (edge << 1);
389 static const int FAN_MAX[] = {0x54, 0x38, 0x2a, 0x21, 0x1c, 0x18, 0x15, 0x12,
392 static int FAN_MAX_FROM_REG(int reg)
396 for (i = 10; i > 0; i--) {
397 if (reg == FAN_MAX[i])
401 return 1000 + i * 500;
404 static int FAN_MAX_TO_REG(int val)
408 for (i = 10; i > 0; i--) {
409 if (val > (1000 + (i - 1) * 500))
418 * Register to enable mapping:
419 * 000: 2 fan on zone 1 auto
420 * 001: 2 fan on zone 2 auto
421 * 010: 2 fan on zone 3 auto
423 * 100: -1 fan disabled
424 * 101: 2 fan on hottest of zones 2,3 auto
425 * 110: 2 fan on hottest of zones 1,2,3 auto
426 * 111: 1 fan in manual mode
428 static inline int PWM_EN_FROM_REG(int reg)
430 static const int en[] = {2, 2, 2, 0, -1, 2, 2, 1};
432 return en[(reg >> 5) & 0x07];
435 static inline int PWM_EN_TO_REG(int val, int reg)
437 int en = (val == 1) ? 7 : 3;
439 return (reg & 0x1f) | ((en & 0x07) << 5);
443 * PWM auto channels zone
444 * Register to auto channels zone mapping (ACZ is a bitfield with bit x
445 * corresponding to zone x+1):
446 * 000: 001 fan on zone 1 auto
447 * 001: 010 fan on zone 2 auto
448 * 010: 100 fan on zone 3 auto
449 * 011: 000 fan full on
450 * 100: 000 fan disabled
451 * 101: 110 fan on hottest of zones 2,3 auto
452 * 110: 111 fan on hottest of zones 1,2,3 auto
453 * 111: 000 fan in manual mode
455 static inline int PWM_ACZ_FROM_REG(int reg)
457 static const int acz[] = {1, 2, 4, 0, 0, 6, 7, 0};
459 return acz[(reg >> 5) & 0x07];
462 static inline int PWM_ACZ_TO_REG(int val, int reg)
464 int acz = (val == 4) ? 2 : val - 1;
466 return (reg & 0x1f) | ((acz & 0x07) << 5);
470 static const int PWM_FREQ[] = {11, 15, 22, 29, 35, 44, 59, 88,
471 15000, 20000, 30000, 25000, 0, 0, 0, 0};
473 static inline int PWM_FREQ_FROM_REG(int reg)
475 return PWM_FREQ[reg & 0x0f];
478 static int PWM_FREQ_TO_REG(int val, int reg)
482 /* the first two cases are special - stupid chip design! */
485 } else if (val > 22500) {
488 for (i = 9; i > 0; i--) {
489 if (val > (PWM_FREQ[i] + PWM_FREQ[i - 1] + 1) / 2)
494 return (reg & 0xf0) | i;
500 * reg[0] = [OFF3, OFF2, OFF1, RES, RR1-E, RR1-2, RR1-1, RR1-0]
501 * reg[1] = [RR2-E, RR2-2, RR2-1, RR2-0, RR3-E, RR3-2, RR3-1, RR3-0]
503 static const u8 PWM_RR[] = {206, 104, 69, 41, 26, 18, 10, 5};
505 static inline int PWM_RR_FROM_REG(int reg, int ix)
507 int rr = (ix == 1) ? reg >> 4 : reg;
509 return (rr & 0x08) ? PWM_RR[rr & 0x07] : 0;
512 static int PWM_RR_TO_REG(int val, int ix, int reg)
516 for (i = 0; i < 7; i++) {
517 if (val > (PWM_RR[i] + PWM_RR[i + 1] + 1) / 2)
521 return (ix == 1) ? (reg & 0x8f) | (i << 4) : (reg & 0xf8) | i;
524 /* PWM ramp rate enable */
525 static inline int PWM_RR_EN_FROM_REG(int reg, int ix)
527 return PWM_RR_FROM_REG(reg, ix) ? 1 : 0;
530 static inline int PWM_RR_EN_TO_REG(int val, int ix, int reg)
532 int en = (ix == 1) ? 0x80 : 0x08;
534 return val ? reg | en : reg & ~en;
539 * The PWM min/off bits are part of the PMW ramp rate register 0 (see above for
540 * the register layout).
542 static inline int PWM_OFF_FROM_REG(int reg, int ix)
544 return (reg >> (ix + 5)) & 0x01;
547 static inline int PWM_OFF_TO_REG(int val, int ix, int reg)
549 return (reg & ~(1 << (ix + 5))) | ((val & 0x01) << (ix + 5));
552 /* ---------------------------------------------------------------------
555 * ISA access is performed through an index/data register pair and needs to
556 * be protected by a mutex during runtime (not required for initialization).
557 * We use data->update_lock for this and need to ensure that we acquire it
558 * before calling dme1737_read or dme1737_write.
559 * --------------------------------------------------------------------- */
561 static u8 dme1737_read(const struct dme1737_data *data, u8 reg)
563 struct i2c_client *client = data->client;
566 if (client) { /* I2C device */
567 val = i2c_smbus_read_byte_data(client, reg);
570 dev_warn(&client->dev, "Read from register "
571 "0x%02x failed! Please report to the driver "
572 "maintainer.\n", reg);
574 } else { /* ISA device */
575 outb(reg, data->addr);
576 val = inb(data->addr + 1);
582 static s32 dme1737_write(const struct dme1737_data *data, u8 reg, u8 val)
584 struct i2c_client *client = data->client;
587 if (client) { /* I2C device */
588 res = i2c_smbus_write_byte_data(client, reg, val);
591 dev_warn(&client->dev, "Write to register "
592 "0x%02x failed! Please report to the driver "
593 "maintainer.\n", reg);
595 } else { /* ISA device */
596 outb(reg, data->addr);
597 outb(val, data->addr + 1);
603 static struct dme1737_data *dme1737_update_device(struct device *dev)
605 struct dme1737_data *data = dev_get_drvdata(dev);
609 mutex_lock(&data->update_lock);
611 /* Enable a Vbat monitoring cycle every 10 mins */
612 if (time_after(jiffies, data->last_vbat + 600 * HZ) || !data->valid) {
613 dme1737_write(data, DME1737_REG_CONFIG, dme1737_read(data,
614 DME1737_REG_CONFIG) | 0x10);
615 data->last_vbat = jiffies;
618 /* Sample register contents every 1 sec */
619 if (time_after(jiffies, data->last_update + HZ) || !data->valid) {
620 if (data->has_features & HAS_VID) {
621 data->vid = dme1737_read(data, DME1737_REG_VID) &
625 /* In (voltage) registers */
626 for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
628 * Voltage inputs are stored as 16 bit values even
629 * though they have only 12 bits resolution. This is
630 * to make it consistent with the temp inputs.
632 if (ix == 7 && !(data->has_features & HAS_IN7))
634 data->in[ix] = dme1737_read(data,
635 DME1737_REG_IN(ix)) << 8;
636 data->in_min[ix] = dme1737_read(data,
637 DME1737_REG_IN_MIN(ix));
638 data->in_max[ix] = dme1737_read(data,
639 DME1737_REG_IN_MAX(ix));
643 for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) {
645 * Temp inputs are stored as 16 bit values even
646 * though they have only 12 bits resolution. This is
647 * to take advantage of implicit conversions between
648 * register values (2's complement) and temp values
651 data->temp[ix] = dme1737_read(data,
652 DME1737_REG_TEMP(ix)) << 8;
653 data->temp_min[ix] = dme1737_read(data,
654 DME1737_REG_TEMP_MIN(ix));
655 data->temp_max[ix] = dme1737_read(data,
656 DME1737_REG_TEMP_MAX(ix));
657 if (data->has_features & HAS_TEMP_OFFSET) {
658 data->temp_offset[ix] = dme1737_read(data,
659 DME1737_REG_TEMP_OFFSET(ix));
664 * In and temp LSB registers
665 * The LSBs are latched when the MSBs are read, so the order in
666 * which the registers are read (MSB first, then LSB) is
669 for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) {
670 if (ix == 5 && !(data->has_features & HAS_IN7))
672 lsb[ix] = dme1737_read(data,
673 DME1737_REG_IN_TEMP_LSB(ix));
675 for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
676 if (ix == 7 && !(data->has_features & HAS_IN7))
678 data->in[ix] |= (lsb[DME1737_REG_IN_LSB[ix]] <<
679 DME1737_REG_IN_LSB_SHL[ix]) & 0xf0;
681 for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) {
682 data->temp[ix] |= (lsb[DME1737_REG_TEMP_LSB[ix]] <<
683 DME1737_REG_TEMP_LSB_SHL[ix]) & 0xf0;
687 for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) {
689 * Skip reading registers if optional fans are not
692 if (!(data->has_features & HAS_FAN(ix)))
694 data->fan[ix] = dme1737_read(data,
695 DME1737_REG_FAN(ix));
696 data->fan[ix] |= dme1737_read(data,
697 DME1737_REG_FAN(ix) + 1) << 8;
698 data->fan_min[ix] = dme1737_read(data,
699 DME1737_REG_FAN_MIN(ix));
700 data->fan_min[ix] |= dme1737_read(data,
701 DME1737_REG_FAN_MIN(ix) + 1) << 8;
702 data->fan_opt[ix] = dme1737_read(data,
703 DME1737_REG_FAN_OPT(ix));
704 /* fan_max exists only for fan[5-6] */
706 data->fan_max[ix - 4] = dme1737_read(data,
707 DME1737_REG_FAN_MAX(ix));
712 for (ix = 0; ix < ARRAY_SIZE(data->pwm); ix++) {
714 * Skip reading registers if optional PWMs are not
717 if (!(data->has_features & HAS_PWM(ix)))
719 data->pwm[ix] = dme1737_read(data,
720 DME1737_REG_PWM(ix));
721 data->pwm_freq[ix] = dme1737_read(data,
722 DME1737_REG_PWM_FREQ(ix));
723 /* pwm_config and pwm_min exist only for pwm[1-3] */
725 data->pwm_config[ix] = dme1737_read(data,
726 DME1737_REG_PWM_CONFIG(ix));
727 data->pwm_min[ix] = dme1737_read(data,
728 DME1737_REG_PWM_MIN(ix));
731 for (ix = 0; ix < ARRAY_SIZE(data->pwm_rr); ix++) {
732 data->pwm_rr[ix] = dme1737_read(data,
733 DME1737_REG_PWM_RR(ix));
736 /* Thermal zone registers */
737 for (ix = 0; ix < ARRAY_SIZE(data->zone_low); ix++) {
738 /* Skip reading registers if zone3 is not present */
739 if ((ix == 2) && !(data->has_features & HAS_ZONE3))
741 /* sch5127 zone2 registers are special */
742 if ((ix == 1) && (data->type == sch5127)) {
743 data->zone_low[1] = dme1737_read(data,
744 DME1737_REG_ZONE_LOW(2));
745 data->zone_abs[1] = dme1737_read(data,
746 DME1737_REG_ZONE_ABS(2));
748 data->zone_low[ix] = dme1737_read(data,
749 DME1737_REG_ZONE_LOW(ix));
750 data->zone_abs[ix] = dme1737_read(data,
751 DME1737_REG_ZONE_ABS(ix));
754 if (data->has_features & HAS_ZONE_HYST) {
755 for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) {
756 data->zone_hyst[ix] = dme1737_read(data,
757 DME1737_REG_ZONE_HYST(ix));
761 /* Alarm registers */
762 data->alarms = dme1737_read(data,
765 * Bit 7 tells us if the other alarm registers are non-zero and
766 * therefore also need to be read
768 if (data->alarms & 0x80) {
769 data->alarms |= dme1737_read(data,
770 DME1737_REG_ALARM2) << 8;
771 data->alarms |= dme1737_read(data,
772 DME1737_REG_ALARM3) << 16;
776 * The ISA chips require explicit clearing of alarm bits.
777 * Don't worry, an alarm will come back if the condition
778 * that causes it still exists
781 if (data->alarms & 0xff0000)
782 dme1737_write(data, DME1737_REG_ALARM3, 0xff);
783 if (data->alarms & 0xff00)
784 dme1737_write(data, DME1737_REG_ALARM2, 0xff);
785 if (data->alarms & 0xff)
786 dme1737_write(data, DME1737_REG_ALARM1, 0xff);
789 data->last_update = jiffies;
793 mutex_unlock(&data->update_lock);
798 /* ---------------------------------------------------------------------
799 * Voltage sysfs attributes
801 * --------------------------------------------------------------------- */
803 #define SYS_IN_INPUT 0
806 #define SYS_IN_ALARM 3
808 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
811 struct dme1737_data *data = dme1737_update_device(dev);
812 struct sensor_device_attribute_2
813 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
814 int ix = sensor_attr_2->index;
815 int fn = sensor_attr_2->nr;
820 res = IN_FROM_REG(data->in[ix], data->in_nominal[ix], 16);
823 res = IN_FROM_REG(data->in_min[ix], data->in_nominal[ix], 8);
826 res = IN_FROM_REG(data->in_max[ix], data->in_nominal[ix], 8);
829 res = (data->alarms >> DME1737_BIT_ALARM_IN[ix]) & 0x01;
833 dev_dbg(dev, "Unknown function %d.\n", fn);
836 return sprintf(buf, "%d\n", res);
839 static ssize_t set_in(struct device *dev, struct device_attribute *attr,
840 const char *buf, size_t count)
842 struct dme1737_data *data = dev_get_drvdata(dev);
843 struct sensor_device_attribute_2
844 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
845 int ix = sensor_attr_2->index;
846 int fn = sensor_attr_2->nr;
850 err = kstrtol(buf, 10, &val);
854 mutex_lock(&data->update_lock);
857 data->in_min[ix] = IN_TO_REG(val, data->in_nominal[ix]);
858 dme1737_write(data, DME1737_REG_IN_MIN(ix),
862 data->in_max[ix] = IN_TO_REG(val, data->in_nominal[ix]);
863 dme1737_write(data, DME1737_REG_IN_MAX(ix),
867 dev_dbg(dev, "Unknown function %d.\n", fn);
869 mutex_unlock(&data->update_lock);
874 /* ---------------------------------------------------------------------
875 * Temperature sysfs attributes
877 * --------------------------------------------------------------------- */
879 #define SYS_TEMP_INPUT 0
880 #define SYS_TEMP_MIN 1
881 #define SYS_TEMP_MAX 2
882 #define SYS_TEMP_OFFSET 3
883 #define SYS_TEMP_ALARM 4
884 #define SYS_TEMP_FAULT 5
886 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
889 struct dme1737_data *data = dme1737_update_device(dev);
890 struct sensor_device_attribute_2
891 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
892 int ix = sensor_attr_2->index;
893 int fn = sensor_attr_2->nr;
898 res = TEMP_FROM_REG(data->temp[ix], 16);
901 res = TEMP_FROM_REG(data->temp_min[ix], 8);
904 res = TEMP_FROM_REG(data->temp_max[ix], 8);
906 case SYS_TEMP_OFFSET:
907 res = TEMP_FROM_REG(data->temp_offset[ix], 8);
910 res = (data->alarms >> DME1737_BIT_ALARM_TEMP[ix]) & 0x01;
913 res = (((u16)data->temp[ix] & 0xff00) == 0x8000);
917 dev_dbg(dev, "Unknown function %d.\n", fn);
920 return sprintf(buf, "%d\n", res);
923 static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
924 const char *buf, size_t count)
926 struct dme1737_data *data = dev_get_drvdata(dev);
927 struct sensor_device_attribute_2
928 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
929 int ix = sensor_attr_2->index;
930 int fn = sensor_attr_2->nr;
934 err = kstrtol(buf, 10, &val);
938 mutex_lock(&data->update_lock);
941 data->temp_min[ix] = TEMP_TO_REG(val);
942 dme1737_write(data, DME1737_REG_TEMP_MIN(ix),
946 data->temp_max[ix] = TEMP_TO_REG(val);
947 dme1737_write(data, DME1737_REG_TEMP_MAX(ix),
950 case SYS_TEMP_OFFSET:
951 data->temp_offset[ix] = TEMP_TO_REG(val);
952 dme1737_write(data, DME1737_REG_TEMP_OFFSET(ix),
953 data->temp_offset[ix]);
956 dev_dbg(dev, "Unknown function %d.\n", fn);
958 mutex_unlock(&data->update_lock);
963 /* ---------------------------------------------------------------------
964 * Zone sysfs attributes
966 * --------------------------------------------------------------------- */
968 #define SYS_ZONE_AUTO_CHANNELS_TEMP 0
969 #define SYS_ZONE_AUTO_POINT1_TEMP_HYST 1
970 #define SYS_ZONE_AUTO_POINT1_TEMP 2
971 #define SYS_ZONE_AUTO_POINT2_TEMP 3
972 #define SYS_ZONE_AUTO_POINT3_TEMP 4
974 static ssize_t show_zone(struct device *dev, struct device_attribute *attr,
977 struct dme1737_data *data = dme1737_update_device(dev);
978 struct sensor_device_attribute_2
979 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
980 int ix = sensor_attr_2->index;
981 int fn = sensor_attr_2->nr;
985 case SYS_ZONE_AUTO_CHANNELS_TEMP:
986 /* check config2 for non-standard temp-to-zone mapping */
987 if ((ix == 1) && (data->config2 & 0x02))
992 case SYS_ZONE_AUTO_POINT1_TEMP_HYST:
993 res = TEMP_FROM_REG(data->zone_low[ix], 8) -
994 TEMP_HYST_FROM_REG(data->zone_hyst[ix == 2], ix);
996 case SYS_ZONE_AUTO_POINT1_TEMP:
997 res = TEMP_FROM_REG(data->zone_low[ix], 8);
999 case SYS_ZONE_AUTO_POINT2_TEMP:
1000 /* pwm_freq holds the temp range bits in the upper nibble */
1001 res = TEMP_FROM_REG(data->zone_low[ix], 8) +
1002 TEMP_RANGE_FROM_REG(data->pwm_freq[ix]);
1004 case SYS_ZONE_AUTO_POINT3_TEMP:
1005 res = TEMP_FROM_REG(data->zone_abs[ix], 8);
1009 dev_dbg(dev, "Unknown function %d.\n", fn);
1012 return sprintf(buf, "%d\n", res);
1015 static ssize_t set_zone(struct device *dev, struct device_attribute *attr,
1016 const char *buf, size_t count)
1018 struct dme1737_data *data = dev_get_drvdata(dev);
1019 struct sensor_device_attribute_2
1020 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1021 int ix = sensor_attr_2->index;
1022 int fn = sensor_attr_2->nr;
1026 err = kstrtol(buf, 10, &val);
1030 mutex_lock(&data->update_lock);
1032 case SYS_ZONE_AUTO_POINT1_TEMP_HYST:
1033 /* Refresh the cache */
1034 data->zone_low[ix] = dme1737_read(data,
1035 DME1737_REG_ZONE_LOW(ix));
1036 /* Modify the temp hyst value */
1037 data->zone_hyst[ix == 2] = TEMP_HYST_TO_REG(
1038 TEMP_FROM_REG(data->zone_low[ix], 8) -
1039 val, ix, dme1737_read(data,
1040 DME1737_REG_ZONE_HYST(ix == 2)));
1041 dme1737_write(data, DME1737_REG_ZONE_HYST(ix == 2),
1042 data->zone_hyst[ix == 2]);
1044 case SYS_ZONE_AUTO_POINT1_TEMP:
1045 data->zone_low[ix] = TEMP_TO_REG(val);
1046 dme1737_write(data, DME1737_REG_ZONE_LOW(ix),
1047 data->zone_low[ix]);
1049 case SYS_ZONE_AUTO_POINT2_TEMP:
1050 /* Refresh the cache */
1051 data->zone_low[ix] = dme1737_read(data,
1052 DME1737_REG_ZONE_LOW(ix));
1054 * Modify the temp range value (which is stored in the upper
1055 * nibble of the pwm_freq register)
1057 data->pwm_freq[ix] = TEMP_RANGE_TO_REG(val -
1058 TEMP_FROM_REG(data->zone_low[ix], 8),
1060 DME1737_REG_PWM_FREQ(ix)));
1061 dme1737_write(data, DME1737_REG_PWM_FREQ(ix),
1062 data->pwm_freq[ix]);
1064 case SYS_ZONE_AUTO_POINT3_TEMP:
1065 data->zone_abs[ix] = TEMP_TO_REG(val);
1066 dme1737_write(data, DME1737_REG_ZONE_ABS(ix),
1067 data->zone_abs[ix]);
1070 dev_dbg(dev, "Unknown function %d.\n", fn);
1072 mutex_unlock(&data->update_lock);
1077 /* ---------------------------------------------------------------------
1078 * Fan sysfs attributes
1080 * --------------------------------------------------------------------- */
1082 #define SYS_FAN_INPUT 0
1083 #define SYS_FAN_MIN 1
1084 #define SYS_FAN_MAX 2
1085 #define SYS_FAN_ALARM 3
1086 #define SYS_FAN_TYPE 4
1088 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
1091 struct dme1737_data *data = dme1737_update_device(dev);
1092 struct sensor_device_attribute_2
1093 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1094 int ix = sensor_attr_2->index;
1095 int fn = sensor_attr_2->nr;
1100 res = FAN_FROM_REG(data->fan[ix],
1102 FAN_TPC_FROM_REG(data->fan_opt[ix]));
1105 res = FAN_FROM_REG(data->fan_min[ix],
1107 FAN_TPC_FROM_REG(data->fan_opt[ix]));
1110 /* only valid for fan[5-6] */
1111 res = FAN_MAX_FROM_REG(data->fan_max[ix - 4]);
1114 res = (data->alarms >> DME1737_BIT_ALARM_FAN[ix]) & 0x01;
1117 /* only valid for fan[1-4] */
1118 res = FAN_TYPE_FROM_REG(data->fan_opt[ix]);
1122 dev_dbg(dev, "Unknown function %d.\n", fn);
1125 return sprintf(buf, "%d\n", res);
1128 static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
1129 const char *buf, size_t count)
1131 struct dme1737_data *data = dev_get_drvdata(dev);
1132 struct sensor_device_attribute_2
1133 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1134 int ix = sensor_attr_2->index;
1135 int fn = sensor_attr_2->nr;
1139 err = kstrtol(buf, 10, &val);
1143 mutex_lock(&data->update_lock);
1147 data->fan_min[ix] = FAN_TO_REG(val, 0);
1149 /* Refresh the cache */
1150 data->fan_opt[ix] = dme1737_read(data,
1151 DME1737_REG_FAN_OPT(ix));
1152 /* Modify the fan min value */
1153 data->fan_min[ix] = FAN_TO_REG(val,
1154 FAN_TPC_FROM_REG(data->fan_opt[ix]));
1156 dme1737_write(data, DME1737_REG_FAN_MIN(ix),
1157 data->fan_min[ix] & 0xff);
1158 dme1737_write(data, DME1737_REG_FAN_MIN(ix) + 1,
1159 data->fan_min[ix] >> 8);
1162 /* Only valid for fan[5-6] */
1163 data->fan_max[ix - 4] = FAN_MAX_TO_REG(val);
1164 dme1737_write(data, DME1737_REG_FAN_MAX(ix),
1165 data->fan_max[ix - 4]);
1168 /* Only valid for fan[1-4] */
1169 if (!(val == 1 || val == 2 || val == 4)) {
1171 dev_warn(dev, "Fan type value %ld not "
1172 "supported. Choose one of 1, 2, or 4.\n",
1176 data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(data,
1177 DME1737_REG_FAN_OPT(ix)));
1178 dme1737_write(data, DME1737_REG_FAN_OPT(ix),
1182 dev_dbg(dev, "Unknown function %d.\n", fn);
1185 mutex_unlock(&data->update_lock);
1190 /* ---------------------------------------------------------------------
1191 * PWM sysfs attributes
1193 * --------------------------------------------------------------------- */
1196 #define SYS_PWM_FREQ 1
1197 #define SYS_PWM_ENABLE 2
1198 #define SYS_PWM_RAMP_RATE 3
1199 #define SYS_PWM_AUTO_CHANNELS_ZONE 4
1200 #define SYS_PWM_AUTO_PWM_MIN 5
1201 #define SYS_PWM_AUTO_POINT1_PWM 6
1202 #define SYS_PWM_AUTO_POINT2_PWM 7
1204 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
1207 struct dme1737_data *data = dme1737_update_device(dev);
1208 struct sensor_device_attribute_2
1209 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1210 int ix = sensor_attr_2->index;
1211 int fn = sensor_attr_2->nr;
1216 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 0)
1219 res = data->pwm[ix];
1222 res = PWM_FREQ_FROM_REG(data->pwm_freq[ix]);
1224 case SYS_PWM_ENABLE:
1226 res = 1; /* pwm[5-6] hard-wired to manual mode */
1228 res = PWM_EN_FROM_REG(data->pwm_config[ix]);
1230 case SYS_PWM_RAMP_RATE:
1231 /* Only valid for pwm[1-3] */
1232 res = PWM_RR_FROM_REG(data->pwm_rr[ix > 0], ix);
1234 case SYS_PWM_AUTO_CHANNELS_ZONE:
1235 /* Only valid for pwm[1-3] */
1236 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2)
1237 res = PWM_ACZ_FROM_REG(data->pwm_config[ix]);
1239 res = data->pwm_acz[ix];
1241 case SYS_PWM_AUTO_PWM_MIN:
1242 /* Only valid for pwm[1-3] */
1243 if (PWM_OFF_FROM_REG(data->pwm_rr[0], ix))
1244 res = data->pwm_min[ix];
1248 case SYS_PWM_AUTO_POINT1_PWM:
1249 /* Only valid for pwm[1-3] */
1250 res = data->pwm_min[ix];
1252 case SYS_PWM_AUTO_POINT2_PWM:
1253 /* Only valid for pwm[1-3] */
1254 res = 255; /* hard-wired */
1258 dev_dbg(dev, "Unknown function %d.\n", fn);
1261 return sprintf(buf, "%d\n", res);
1264 static struct attribute *dme1737_pwm_chmod_attr[];
1265 static void dme1737_chmod_file(struct device*, struct attribute*, umode_t);
1267 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1268 const char *buf, size_t count)
1270 struct dme1737_data *data = dev_get_drvdata(dev);
1271 struct sensor_device_attribute_2
1272 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1273 int ix = sensor_attr_2->index;
1274 int fn = sensor_attr_2->nr;
1278 err = kstrtol(buf, 10, &val);
1282 mutex_lock(&data->update_lock);
1285 data->pwm[ix] = SENSORS_LIMIT(val, 0, 255);
1286 dme1737_write(data, DME1737_REG_PWM(ix), data->pwm[ix]);
1289 data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(data,
1290 DME1737_REG_PWM_FREQ(ix)));
1291 dme1737_write(data, DME1737_REG_PWM_FREQ(ix),
1292 data->pwm_freq[ix]);
1294 case SYS_PWM_ENABLE:
1295 /* Only valid for pwm[1-3] */
1296 if (val < 0 || val > 2) {
1298 dev_warn(dev, "PWM enable %ld not "
1299 "supported. Choose one of 0, 1, or 2.\n",
1303 /* Refresh the cache */
1304 data->pwm_config[ix] = dme1737_read(data,
1305 DME1737_REG_PWM_CONFIG(ix));
1306 if (val == PWM_EN_FROM_REG(data->pwm_config[ix])) {
1307 /* Bail out if no change */
1310 /* Do some housekeeping if we are currently in auto mode */
1311 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
1312 /* Save the current zone channel assignment */
1313 data->pwm_acz[ix] = PWM_ACZ_FROM_REG(
1314 data->pwm_config[ix]);
1315 /* Save the current ramp rate state and disable it */
1316 data->pwm_rr[ix > 0] = dme1737_read(data,
1317 DME1737_REG_PWM_RR(ix > 0));
1318 data->pwm_rr_en &= ~(1 << ix);
1319 if (PWM_RR_EN_FROM_REG(data->pwm_rr[ix > 0], ix)) {
1320 data->pwm_rr_en |= (1 << ix);
1321 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(0, ix,
1322 data->pwm_rr[ix > 0]);
1324 DME1737_REG_PWM_RR(ix > 0),
1325 data->pwm_rr[ix > 0]);
1328 /* Set the new PWM mode */
1331 /* Change permissions of pwm[ix] to read-only */
1332 dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
1334 /* Turn fan fully on */
1335 data->pwm_config[ix] = PWM_EN_TO_REG(0,
1336 data->pwm_config[ix]);
1337 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1338 data->pwm_config[ix]);
1341 /* Turn on manual mode */
1342 data->pwm_config[ix] = PWM_EN_TO_REG(1,
1343 data->pwm_config[ix]);
1344 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1345 data->pwm_config[ix]);
1346 /* Change permissions of pwm[ix] to read-writeable */
1347 dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
1351 /* Change permissions of pwm[ix] to read-only */
1352 dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
1355 * Turn on auto mode using the saved zone channel
1358 data->pwm_config[ix] = PWM_ACZ_TO_REG(
1360 data->pwm_config[ix]);
1361 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1362 data->pwm_config[ix]);
1363 /* Enable PWM ramp rate if previously enabled */
1364 if (data->pwm_rr_en & (1 << ix)) {
1365 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(1, ix,
1367 DME1737_REG_PWM_RR(ix > 0)));
1369 DME1737_REG_PWM_RR(ix > 0),
1370 data->pwm_rr[ix > 0]);
1375 case SYS_PWM_RAMP_RATE:
1376 /* Only valid for pwm[1-3] */
1377 /* Refresh the cache */
1378 data->pwm_config[ix] = dme1737_read(data,
1379 DME1737_REG_PWM_CONFIG(ix));
1380 data->pwm_rr[ix > 0] = dme1737_read(data,
1381 DME1737_REG_PWM_RR(ix > 0));
1382 /* Set the ramp rate value */
1384 data->pwm_rr[ix > 0] = PWM_RR_TO_REG(val, ix,
1385 data->pwm_rr[ix > 0]);
1388 * Enable/disable the feature only if the associated PWM
1389 * output is in automatic mode.
1391 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
1392 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(val > 0, ix,
1393 data->pwm_rr[ix > 0]);
1395 dme1737_write(data, DME1737_REG_PWM_RR(ix > 0),
1396 data->pwm_rr[ix > 0]);
1398 case SYS_PWM_AUTO_CHANNELS_ZONE:
1399 /* Only valid for pwm[1-3] */
1400 if (!(val == 1 || val == 2 || val == 4 ||
1401 val == 6 || val == 7)) {
1403 dev_warn(dev, "PWM auto channels zone %ld "
1404 "not supported. Choose one of 1, 2, 4, 6, "
1408 /* Refresh the cache */
1409 data->pwm_config[ix] = dme1737_read(data,
1410 DME1737_REG_PWM_CONFIG(ix));
1411 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
1413 * PWM is already in auto mode so update the temp
1414 * channel assignment
1416 data->pwm_config[ix] = PWM_ACZ_TO_REG(val,
1417 data->pwm_config[ix]);
1418 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1419 data->pwm_config[ix]);
1422 * PWM is not in auto mode so we save the temp
1423 * channel assignment for later use
1425 data->pwm_acz[ix] = val;
1428 case SYS_PWM_AUTO_PWM_MIN:
1429 /* Only valid for pwm[1-3] */
1430 /* Refresh the cache */
1431 data->pwm_min[ix] = dme1737_read(data,
1432 DME1737_REG_PWM_MIN(ix));
1434 * There are only 2 values supported for the auto_pwm_min
1435 * value: 0 or auto_point1_pwm. So if the temperature drops
1436 * below the auto_point1_temp_hyst value, the fan either turns
1437 * off or runs at auto_point1_pwm duty-cycle.
1439 if (val > ((data->pwm_min[ix] + 1) / 2)) {
1440 data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix,
1442 DME1737_REG_PWM_RR(0)));
1444 data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix,
1446 DME1737_REG_PWM_RR(0)));
1448 dme1737_write(data, DME1737_REG_PWM_RR(0),
1451 case SYS_PWM_AUTO_POINT1_PWM:
1452 /* Only valid for pwm[1-3] */
1453 data->pwm_min[ix] = SENSORS_LIMIT(val, 0, 255);
1454 dme1737_write(data, DME1737_REG_PWM_MIN(ix),
1458 dev_dbg(dev, "Unknown function %d.\n", fn);
1461 mutex_unlock(&data->update_lock);
1466 /* ---------------------------------------------------------------------
1467 * Miscellaneous sysfs attributes
1468 * --------------------------------------------------------------------- */
1470 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
1473 struct i2c_client *client = to_i2c_client(dev);
1474 struct dme1737_data *data = i2c_get_clientdata(client);
1476 return sprintf(buf, "%d\n", data->vrm);
1479 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
1480 const char *buf, size_t count)
1482 struct dme1737_data *data = dev_get_drvdata(dev);
1486 err = kstrtol(buf, 10, &val);
1494 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
1497 struct dme1737_data *data = dme1737_update_device(dev);
1499 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
1502 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
1505 struct dme1737_data *data = dev_get_drvdata(dev);
1507 return sprintf(buf, "%s\n", data->name);
1510 /* ---------------------------------------------------------------------
1511 * Sysfs device attribute defines and structs
1512 * --------------------------------------------------------------------- */
1516 #define SENSOR_DEVICE_ATTR_IN(ix) \
1517 static SENSOR_DEVICE_ATTR_2(in##ix##_input, S_IRUGO, \
1518 show_in, NULL, SYS_IN_INPUT, ix); \
1519 static SENSOR_DEVICE_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \
1520 show_in, set_in, SYS_IN_MIN, ix); \
1521 static SENSOR_DEVICE_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \
1522 show_in, set_in, SYS_IN_MAX, ix); \
1523 static SENSOR_DEVICE_ATTR_2(in##ix##_alarm, S_IRUGO, \
1524 show_in, NULL, SYS_IN_ALARM, ix)
1526 SENSOR_DEVICE_ATTR_IN(0);
1527 SENSOR_DEVICE_ATTR_IN(1);
1528 SENSOR_DEVICE_ATTR_IN(2);
1529 SENSOR_DEVICE_ATTR_IN(3);
1530 SENSOR_DEVICE_ATTR_IN(4);
1531 SENSOR_DEVICE_ATTR_IN(5);
1532 SENSOR_DEVICE_ATTR_IN(6);
1533 SENSOR_DEVICE_ATTR_IN(7);
1535 /* Temperatures 1-3 */
1537 #define SENSOR_DEVICE_ATTR_TEMP(ix) \
1538 static SENSOR_DEVICE_ATTR_2(temp##ix##_input, S_IRUGO, \
1539 show_temp, NULL, SYS_TEMP_INPUT, ix-1); \
1540 static SENSOR_DEVICE_ATTR_2(temp##ix##_min, S_IRUGO | S_IWUSR, \
1541 show_temp, set_temp, SYS_TEMP_MIN, ix-1); \
1542 static SENSOR_DEVICE_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \
1543 show_temp, set_temp, SYS_TEMP_MAX, ix-1); \
1544 static SENSOR_DEVICE_ATTR_2(temp##ix##_offset, S_IRUGO, \
1545 show_temp, set_temp, SYS_TEMP_OFFSET, ix-1); \
1546 static SENSOR_DEVICE_ATTR_2(temp##ix##_alarm, S_IRUGO, \
1547 show_temp, NULL, SYS_TEMP_ALARM, ix-1); \
1548 static SENSOR_DEVICE_ATTR_2(temp##ix##_fault, S_IRUGO, \
1549 show_temp, NULL, SYS_TEMP_FAULT, ix-1)
1551 SENSOR_DEVICE_ATTR_TEMP(1);
1552 SENSOR_DEVICE_ATTR_TEMP(2);
1553 SENSOR_DEVICE_ATTR_TEMP(3);
1557 #define SENSOR_DEVICE_ATTR_ZONE(ix) \
1558 static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_channels_temp, S_IRUGO, \
1559 show_zone, NULL, SYS_ZONE_AUTO_CHANNELS_TEMP, ix-1); \
1560 static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp_hyst, S_IRUGO, \
1561 show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP_HYST, ix-1); \
1562 static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp, S_IRUGO, \
1563 show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP, ix-1); \
1564 static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point2_temp, S_IRUGO, \
1565 show_zone, set_zone, SYS_ZONE_AUTO_POINT2_TEMP, ix-1); \
1566 static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point3_temp, S_IRUGO, \
1567 show_zone, set_zone, SYS_ZONE_AUTO_POINT3_TEMP, ix-1)
1569 SENSOR_DEVICE_ATTR_ZONE(1);
1570 SENSOR_DEVICE_ATTR_ZONE(2);
1571 SENSOR_DEVICE_ATTR_ZONE(3);
1575 #define SENSOR_DEVICE_ATTR_FAN_1TO4(ix) \
1576 static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \
1577 show_fan, NULL, SYS_FAN_INPUT, ix-1); \
1578 static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \
1579 show_fan, set_fan, SYS_FAN_MIN, ix-1); \
1580 static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \
1581 show_fan, NULL, SYS_FAN_ALARM, ix-1); \
1582 static SENSOR_DEVICE_ATTR_2(fan##ix##_type, S_IRUGO | S_IWUSR, \
1583 show_fan, set_fan, SYS_FAN_TYPE, ix-1)
1585 SENSOR_DEVICE_ATTR_FAN_1TO4(1);
1586 SENSOR_DEVICE_ATTR_FAN_1TO4(2);
1587 SENSOR_DEVICE_ATTR_FAN_1TO4(3);
1588 SENSOR_DEVICE_ATTR_FAN_1TO4(4);
1592 #define SENSOR_DEVICE_ATTR_FAN_5TO6(ix) \
1593 static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \
1594 show_fan, NULL, SYS_FAN_INPUT, ix-1); \
1595 static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \
1596 show_fan, set_fan, SYS_FAN_MIN, ix-1); \
1597 static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \
1598 show_fan, NULL, SYS_FAN_ALARM, ix-1); \
1599 static SENSOR_DEVICE_ATTR_2(fan##ix##_max, S_IRUGO | S_IWUSR, \
1600 show_fan, set_fan, SYS_FAN_MAX, ix-1)
1602 SENSOR_DEVICE_ATTR_FAN_5TO6(5);
1603 SENSOR_DEVICE_ATTR_FAN_5TO6(6);
1607 #define SENSOR_DEVICE_ATTR_PWM_1TO3(ix) \
1608 static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO, \
1609 show_pwm, set_pwm, SYS_PWM, ix-1); \
1610 static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO, \
1611 show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \
1612 static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \
1613 show_pwm, set_pwm, SYS_PWM_ENABLE, ix-1); \
1614 static SENSOR_DEVICE_ATTR_2(pwm##ix##_ramp_rate, S_IRUGO, \
1615 show_pwm, set_pwm, SYS_PWM_RAMP_RATE, ix-1); \
1616 static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_channels_zone, S_IRUGO, \
1617 show_pwm, set_pwm, SYS_PWM_AUTO_CHANNELS_ZONE, ix-1); \
1618 static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_pwm_min, S_IRUGO, \
1619 show_pwm, set_pwm, SYS_PWM_AUTO_PWM_MIN, ix-1); \
1620 static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point1_pwm, S_IRUGO, \
1621 show_pwm, set_pwm, SYS_PWM_AUTO_POINT1_PWM, ix-1); \
1622 static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point2_pwm, S_IRUGO, \
1623 show_pwm, NULL, SYS_PWM_AUTO_POINT2_PWM, ix-1)
1625 SENSOR_DEVICE_ATTR_PWM_1TO3(1);
1626 SENSOR_DEVICE_ATTR_PWM_1TO3(2);
1627 SENSOR_DEVICE_ATTR_PWM_1TO3(3);
1631 #define SENSOR_DEVICE_ATTR_PWM_5TO6(ix) \
1632 static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO, \
1633 show_pwm, set_pwm, SYS_PWM, ix-1); \
1634 static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO, \
1635 show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \
1636 static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \
1637 show_pwm, NULL, SYS_PWM_ENABLE, ix-1)
1639 SENSOR_DEVICE_ATTR_PWM_5TO6(5);
1640 SENSOR_DEVICE_ATTR_PWM_5TO6(6);
1644 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
1645 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
1646 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); /* for ISA devices */
1649 * This struct holds all the attributes that are always present and need to be
1650 * created unconditionally. The attributes that need modification of their
1651 * permissions are created read-only and write permissions are added or removed
1652 * on the fly when required
1654 static struct attribute *dme1737_attr[] = {
1656 &sensor_dev_attr_in0_input.dev_attr.attr,
1657 &sensor_dev_attr_in0_min.dev_attr.attr,
1658 &sensor_dev_attr_in0_max.dev_attr.attr,
1659 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1660 &sensor_dev_attr_in1_input.dev_attr.attr,
1661 &sensor_dev_attr_in1_min.dev_attr.attr,
1662 &sensor_dev_attr_in1_max.dev_attr.attr,
1663 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1664 &sensor_dev_attr_in2_input.dev_attr.attr,
1665 &sensor_dev_attr_in2_min.dev_attr.attr,
1666 &sensor_dev_attr_in2_max.dev_attr.attr,
1667 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1668 &sensor_dev_attr_in3_input.dev_attr.attr,
1669 &sensor_dev_attr_in3_min.dev_attr.attr,
1670 &sensor_dev_attr_in3_max.dev_attr.attr,
1671 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1672 &sensor_dev_attr_in4_input.dev_attr.attr,
1673 &sensor_dev_attr_in4_min.dev_attr.attr,
1674 &sensor_dev_attr_in4_max.dev_attr.attr,
1675 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1676 &sensor_dev_attr_in5_input.dev_attr.attr,
1677 &sensor_dev_attr_in5_min.dev_attr.attr,
1678 &sensor_dev_attr_in5_max.dev_attr.attr,
1679 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1680 &sensor_dev_attr_in6_input.dev_attr.attr,
1681 &sensor_dev_attr_in6_min.dev_attr.attr,
1682 &sensor_dev_attr_in6_max.dev_attr.attr,
1683 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1685 &sensor_dev_attr_temp1_input.dev_attr.attr,
1686 &sensor_dev_attr_temp1_min.dev_attr.attr,
1687 &sensor_dev_attr_temp1_max.dev_attr.attr,
1688 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1689 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1690 &sensor_dev_attr_temp2_input.dev_attr.attr,
1691 &sensor_dev_attr_temp2_min.dev_attr.attr,
1692 &sensor_dev_attr_temp2_max.dev_attr.attr,
1693 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1694 &sensor_dev_attr_temp2_fault.dev_attr.attr,
1695 &sensor_dev_attr_temp3_input.dev_attr.attr,
1696 &sensor_dev_attr_temp3_min.dev_attr.attr,
1697 &sensor_dev_attr_temp3_max.dev_attr.attr,
1698 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1699 &sensor_dev_attr_temp3_fault.dev_attr.attr,
1701 &sensor_dev_attr_zone1_auto_point1_temp.dev_attr.attr,
1702 &sensor_dev_attr_zone1_auto_point2_temp.dev_attr.attr,
1703 &sensor_dev_attr_zone1_auto_point3_temp.dev_attr.attr,
1704 &sensor_dev_attr_zone1_auto_channels_temp.dev_attr.attr,
1705 &sensor_dev_attr_zone2_auto_point1_temp.dev_attr.attr,
1706 &sensor_dev_attr_zone2_auto_point2_temp.dev_attr.attr,
1707 &sensor_dev_attr_zone2_auto_point3_temp.dev_attr.attr,
1708 &sensor_dev_attr_zone2_auto_channels_temp.dev_attr.attr,
1712 static const struct attribute_group dme1737_group = {
1713 .attrs = dme1737_attr,
1717 * The following struct holds temp offset attributes, which are not available
1718 * in all chips. The following chips support them:
1721 static struct attribute *dme1737_temp_offset_attr[] = {
1722 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1723 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1724 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1728 static const struct attribute_group dme1737_temp_offset_group = {
1729 .attrs = dme1737_temp_offset_attr,
1733 * The following struct holds VID related attributes, which are not available
1734 * in all chips. The following chips support them:
1737 static struct attribute *dme1737_vid_attr[] = {
1739 &dev_attr_cpu0_vid.attr,
1743 static const struct attribute_group dme1737_vid_group = {
1744 .attrs = dme1737_vid_attr,
1748 * The following struct holds temp zone 3 related attributes, which are not
1749 * available in all chips. The following chips support them:
1750 * DME1737, SCH311x, SCH5027
1752 static struct attribute *dme1737_zone3_attr[] = {
1753 &sensor_dev_attr_zone3_auto_point1_temp.dev_attr.attr,
1754 &sensor_dev_attr_zone3_auto_point2_temp.dev_attr.attr,
1755 &sensor_dev_attr_zone3_auto_point3_temp.dev_attr.attr,
1756 &sensor_dev_attr_zone3_auto_channels_temp.dev_attr.attr,
1760 static const struct attribute_group dme1737_zone3_group = {
1761 .attrs = dme1737_zone3_attr,
1766 * The following struct holds temp zone hysteresis related attributes, which
1767 * are not available in all chips. The following chips support them:
1770 static struct attribute *dme1737_zone_hyst_attr[] = {
1771 &sensor_dev_attr_zone1_auto_point1_temp_hyst.dev_attr.attr,
1772 &sensor_dev_attr_zone2_auto_point1_temp_hyst.dev_attr.attr,
1773 &sensor_dev_attr_zone3_auto_point1_temp_hyst.dev_attr.attr,
1777 static const struct attribute_group dme1737_zone_hyst_group = {
1778 .attrs = dme1737_zone_hyst_attr,
1782 * The following struct holds voltage in7 related attributes, which
1783 * are not available in all chips. The following chips support them:
1786 static struct attribute *dme1737_in7_attr[] = {
1787 &sensor_dev_attr_in7_input.dev_attr.attr,
1788 &sensor_dev_attr_in7_min.dev_attr.attr,
1789 &sensor_dev_attr_in7_max.dev_attr.attr,
1790 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1794 static const struct attribute_group dme1737_in7_group = {
1795 .attrs = dme1737_in7_attr,
1799 * The following structs hold the PWM attributes, some of which are optional.
1800 * Their creation depends on the chip configuration which is determined during
1803 static struct attribute *dme1737_pwm1_attr[] = {
1804 &sensor_dev_attr_pwm1.dev_attr.attr,
1805 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1806 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1807 &sensor_dev_attr_pwm1_ramp_rate.dev_attr.attr,
1808 &sensor_dev_attr_pwm1_auto_channels_zone.dev_attr.attr,
1809 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1810 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1813 static struct attribute *dme1737_pwm2_attr[] = {
1814 &sensor_dev_attr_pwm2.dev_attr.attr,
1815 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1816 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1817 &sensor_dev_attr_pwm2_ramp_rate.dev_attr.attr,
1818 &sensor_dev_attr_pwm2_auto_channels_zone.dev_attr.attr,
1819 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1820 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1823 static struct attribute *dme1737_pwm3_attr[] = {
1824 &sensor_dev_attr_pwm3.dev_attr.attr,
1825 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1826 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1827 &sensor_dev_attr_pwm3_ramp_rate.dev_attr.attr,
1828 &sensor_dev_attr_pwm3_auto_channels_zone.dev_attr.attr,
1829 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1830 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1833 static struct attribute *dme1737_pwm5_attr[] = {
1834 &sensor_dev_attr_pwm5.dev_attr.attr,
1835 &sensor_dev_attr_pwm5_freq.dev_attr.attr,
1836 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
1839 static struct attribute *dme1737_pwm6_attr[] = {
1840 &sensor_dev_attr_pwm6.dev_attr.attr,
1841 &sensor_dev_attr_pwm6_freq.dev_attr.attr,
1842 &sensor_dev_attr_pwm6_enable.dev_attr.attr,
1846 static const struct attribute_group dme1737_pwm_group[] = {
1847 { .attrs = dme1737_pwm1_attr },
1848 { .attrs = dme1737_pwm2_attr },
1849 { .attrs = dme1737_pwm3_attr },
1851 { .attrs = dme1737_pwm5_attr },
1852 { .attrs = dme1737_pwm6_attr },
1856 * The following struct holds auto PWM min attributes, which are not available
1857 * in all chips. Their creation depends on the chip type which is determined
1858 * during module load.
1860 static struct attribute *dme1737_auto_pwm_min_attr[] = {
1861 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1862 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1863 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1867 * The following structs hold the fan attributes, some of which are optional.
1868 * Their creation depends on the chip configuration which is determined during
1871 static struct attribute *dme1737_fan1_attr[] = {
1872 &sensor_dev_attr_fan1_input.dev_attr.attr,
1873 &sensor_dev_attr_fan1_min.dev_attr.attr,
1874 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1875 &sensor_dev_attr_fan1_type.dev_attr.attr,
1878 static struct attribute *dme1737_fan2_attr[] = {
1879 &sensor_dev_attr_fan2_input.dev_attr.attr,
1880 &sensor_dev_attr_fan2_min.dev_attr.attr,
1881 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1882 &sensor_dev_attr_fan2_type.dev_attr.attr,
1885 static struct attribute *dme1737_fan3_attr[] = {
1886 &sensor_dev_attr_fan3_input.dev_attr.attr,
1887 &sensor_dev_attr_fan3_min.dev_attr.attr,
1888 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1889 &sensor_dev_attr_fan3_type.dev_attr.attr,
1892 static struct attribute *dme1737_fan4_attr[] = {
1893 &sensor_dev_attr_fan4_input.dev_attr.attr,
1894 &sensor_dev_attr_fan4_min.dev_attr.attr,
1895 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1896 &sensor_dev_attr_fan4_type.dev_attr.attr,
1899 static struct attribute *dme1737_fan5_attr[] = {
1900 &sensor_dev_attr_fan5_input.dev_attr.attr,
1901 &sensor_dev_attr_fan5_min.dev_attr.attr,
1902 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1903 &sensor_dev_attr_fan5_max.dev_attr.attr,
1906 static struct attribute *dme1737_fan6_attr[] = {
1907 &sensor_dev_attr_fan6_input.dev_attr.attr,
1908 &sensor_dev_attr_fan6_min.dev_attr.attr,
1909 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1910 &sensor_dev_attr_fan6_max.dev_attr.attr,
1914 static const struct attribute_group dme1737_fan_group[] = {
1915 { .attrs = dme1737_fan1_attr },
1916 { .attrs = dme1737_fan2_attr },
1917 { .attrs = dme1737_fan3_attr },
1918 { .attrs = dme1737_fan4_attr },
1919 { .attrs = dme1737_fan5_attr },
1920 { .attrs = dme1737_fan6_attr },
1924 * The permissions of the following zone attributes are changed to read-
1925 * writeable if the chip is *not* locked. Otherwise they stay read-only.
1927 static struct attribute *dme1737_zone_chmod_attr[] = {
1928 &sensor_dev_attr_zone1_auto_point1_temp.dev_attr.attr,
1929 &sensor_dev_attr_zone1_auto_point2_temp.dev_attr.attr,
1930 &sensor_dev_attr_zone1_auto_point3_temp.dev_attr.attr,
1931 &sensor_dev_attr_zone2_auto_point1_temp.dev_attr.attr,
1932 &sensor_dev_attr_zone2_auto_point2_temp.dev_attr.attr,
1933 &sensor_dev_attr_zone2_auto_point3_temp.dev_attr.attr,
1937 static const struct attribute_group dme1737_zone_chmod_group = {
1938 .attrs = dme1737_zone_chmod_attr,
1943 * The permissions of the following zone 3 attributes are changed to read-
1944 * writeable if the chip is *not* locked. Otherwise they stay read-only.
1946 static struct attribute *dme1737_zone3_chmod_attr[] = {
1947 &sensor_dev_attr_zone3_auto_point1_temp.dev_attr.attr,
1948 &sensor_dev_attr_zone3_auto_point2_temp.dev_attr.attr,
1949 &sensor_dev_attr_zone3_auto_point3_temp.dev_attr.attr,
1953 static const struct attribute_group dme1737_zone3_chmod_group = {
1954 .attrs = dme1737_zone3_chmod_attr,
1958 * The permissions of the following PWM attributes are changed to read-
1959 * writeable if the chip is *not* locked and the respective PWM is available.
1960 * Otherwise they stay read-only.
1962 static struct attribute *dme1737_pwm1_chmod_attr[] = {
1963 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1964 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1965 &sensor_dev_attr_pwm1_ramp_rate.dev_attr.attr,
1966 &sensor_dev_attr_pwm1_auto_channels_zone.dev_attr.attr,
1967 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1970 static struct attribute *dme1737_pwm2_chmod_attr[] = {
1971 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1972 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1973 &sensor_dev_attr_pwm2_ramp_rate.dev_attr.attr,
1974 &sensor_dev_attr_pwm2_auto_channels_zone.dev_attr.attr,
1975 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1978 static struct attribute *dme1737_pwm3_chmod_attr[] = {
1979 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1980 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1981 &sensor_dev_attr_pwm3_ramp_rate.dev_attr.attr,
1982 &sensor_dev_attr_pwm3_auto_channels_zone.dev_attr.attr,
1983 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1986 static struct attribute *dme1737_pwm5_chmod_attr[] = {
1987 &sensor_dev_attr_pwm5.dev_attr.attr,
1988 &sensor_dev_attr_pwm5_freq.dev_attr.attr,
1991 static struct attribute *dme1737_pwm6_chmod_attr[] = {
1992 &sensor_dev_attr_pwm6.dev_attr.attr,
1993 &sensor_dev_attr_pwm6_freq.dev_attr.attr,
1997 static const struct attribute_group dme1737_pwm_chmod_group[] = {
1998 { .attrs = dme1737_pwm1_chmod_attr },
1999 { .attrs = dme1737_pwm2_chmod_attr },
2000 { .attrs = dme1737_pwm3_chmod_attr },
2002 { .attrs = dme1737_pwm5_chmod_attr },
2003 { .attrs = dme1737_pwm6_chmod_attr },
2007 * Pwm[1-3] are read-writeable if the associated pwm is in manual mode and the
2008 * chip is not locked. Otherwise they are read-only.
2010 static struct attribute *dme1737_pwm_chmod_attr[] = {
2011 &sensor_dev_attr_pwm1.dev_attr.attr,
2012 &sensor_dev_attr_pwm2.dev_attr.attr,
2013 &sensor_dev_attr_pwm3.dev_attr.attr,
2016 /* ---------------------------------------------------------------------
2017 * Super-IO functions
2018 * --------------------------------------------------------------------- */
2020 static inline void dme1737_sio_enter(int sio_cip)
2022 outb(0x55, sio_cip);
2025 static inline void dme1737_sio_exit(int sio_cip)
2027 outb(0xaa, sio_cip);
2030 static inline int dme1737_sio_inb(int sio_cip, int reg)
2033 return inb(sio_cip + 1);
2036 static inline void dme1737_sio_outb(int sio_cip, int reg, int val)
2039 outb(val, sio_cip + 1);
2042 /* ---------------------------------------------------------------------
2043 * Device initialization
2044 * --------------------------------------------------------------------- */
2046 static int dme1737_i2c_get_features(int, struct dme1737_data*);
2048 static void dme1737_chmod_file(struct device *dev,
2049 struct attribute *attr, umode_t mode)
2051 if (sysfs_chmod_file(&dev->kobj, attr, mode)) {
2052 dev_warn(dev, "Failed to change permissions of %s.\n",
2057 static void dme1737_chmod_group(struct device *dev,
2058 const struct attribute_group *group,
2061 struct attribute **attr;
2063 for (attr = group->attrs; *attr; attr++)
2064 dme1737_chmod_file(dev, *attr, mode);
2067 static void dme1737_remove_files(struct device *dev)
2069 struct dme1737_data *data = dev_get_drvdata(dev);
2072 for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) {
2073 if (data->has_features & HAS_FAN(ix)) {
2074 sysfs_remove_group(&dev->kobj,
2075 &dme1737_fan_group[ix]);
2079 for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) {
2080 if (data->has_features & HAS_PWM(ix)) {
2081 sysfs_remove_group(&dev->kobj,
2082 &dme1737_pwm_group[ix]);
2083 if ((data->has_features & HAS_PWM_MIN) && ix < 3) {
2084 sysfs_remove_file(&dev->kobj,
2085 dme1737_auto_pwm_min_attr[ix]);
2090 if (data->has_features & HAS_TEMP_OFFSET)
2091 sysfs_remove_group(&dev->kobj, &dme1737_temp_offset_group);
2092 if (data->has_features & HAS_VID)
2093 sysfs_remove_group(&dev->kobj, &dme1737_vid_group);
2094 if (data->has_features & HAS_ZONE3)
2095 sysfs_remove_group(&dev->kobj, &dme1737_zone3_group);
2096 if (data->has_features & HAS_ZONE_HYST)
2097 sysfs_remove_group(&dev->kobj, &dme1737_zone_hyst_group);
2098 if (data->has_features & HAS_IN7)
2099 sysfs_remove_group(&dev->kobj, &dme1737_in7_group);
2100 sysfs_remove_group(&dev->kobj, &dme1737_group);
2103 sysfs_remove_file(&dev->kobj, &dev_attr_name.attr);
2106 static int dme1737_create_files(struct device *dev)
2108 struct dme1737_data *data = dev_get_drvdata(dev);
2111 /* Create a name attribute for ISA devices */
2112 if (!data->client) {
2113 err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr);
2118 /* Create standard sysfs attributes */
2119 err = sysfs_create_group(&dev->kobj, &dme1737_group);
2123 /* Create chip-dependent sysfs attributes */
2124 if (data->has_features & HAS_TEMP_OFFSET) {
2125 err = sysfs_create_group(&dev->kobj,
2126 &dme1737_temp_offset_group);
2130 if (data->has_features & HAS_VID) {
2131 err = sysfs_create_group(&dev->kobj, &dme1737_vid_group);
2135 if (data->has_features & HAS_ZONE3) {
2136 err = sysfs_create_group(&dev->kobj, &dme1737_zone3_group);
2140 if (data->has_features & HAS_ZONE_HYST) {
2141 err = sysfs_create_group(&dev->kobj, &dme1737_zone_hyst_group);
2145 if (data->has_features & HAS_IN7) {
2146 err = sysfs_create_group(&dev->kobj, &dme1737_in7_group);
2151 /* Create fan sysfs attributes */
2152 for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) {
2153 if (data->has_features & HAS_FAN(ix)) {
2154 err = sysfs_create_group(&dev->kobj,
2155 &dme1737_fan_group[ix]);
2161 /* Create PWM sysfs attributes */
2162 for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) {
2163 if (data->has_features & HAS_PWM(ix)) {
2164 err = sysfs_create_group(&dev->kobj,
2165 &dme1737_pwm_group[ix]);
2168 if ((data->has_features & HAS_PWM_MIN) && (ix < 3)) {
2169 err = sysfs_create_file(&dev->kobj,
2170 dme1737_auto_pwm_min_attr[ix]);
2178 * Inform if the device is locked. Otherwise change the permissions of
2179 * selected attributes from read-only to read-writeable.
2181 if (data->config & 0x02) {
2182 dev_info(dev, "Device is locked. Some attributes "
2183 "will be read-only.\n");
2185 /* Change permissions of zone sysfs attributes */
2186 dme1737_chmod_group(dev, &dme1737_zone_chmod_group,
2189 /* Change permissions of chip-dependent sysfs attributes */
2190 if (data->has_features & HAS_TEMP_OFFSET) {
2191 dme1737_chmod_group(dev, &dme1737_temp_offset_group,
2194 if (data->has_features & HAS_ZONE3) {
2195 dme1737_chmod_group(dev, &dme1737_zone3_chmod_group,
2198 if (data->has_features & HAS_ZONE_HYST) {
2199 dme1737_chmod_group(dev, &dme1737_zone_hyst_group,
2203 /* Change permissions of PWM sysfs attributes */
2204 for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_chmod_group); ix++) {
2205 if (data->has_features & HAS_PWM(ix)) {
2206 dme1737_chmod_group(dev,
2207 &dme1737_pwm_chmod_group[ix],
2209 if ((data->has_features & HAS_PWM_MIN) &&
2211 dme1737_chmod_file(dev,
2212 dme1737_auto_pwm_min_attr[ix],
2218 /* Change permissions of pwm[1-3] if in manual mode */
2219 for (ix = 0; ix < 3; ix++) {
2220 if ((data->has_features & HAS_PWM(ix)) &&
2221 (PWM_EN_FROM_REG(data->pwm_config[ix]) == 1)) {
2222 dme1737_chmod_file(dev,
2223 dme1737_pwm_chmod_attr[ix],
2232 dme1737_remove_files(dev);
2237 static int dme1737_init_device(struct device *dev)
2239 struct dme1737_data *data = dev_get_drvdata(dev);
2240 struct i2c_client *client = data->client;
2244 /* Point to the right nominal voltages array */
2245 data->in_nominal = IN_NOMINAL(data->type);
2247 data->config = dme1737_read(data, DME1737_REG_CONFIG);
2248 /* Inform if part is not monitoring/started */
2249 if (!(data->config & 0x01)) {
2251 dev_err(dev, "Device is not monitoring. "
2252 "Use the force_start load parameter to "
2257 /* Force monitoring */
2258 data->config |= 0x01;
2259 dme1737_write(data, DME1737_REG_CONFIG, data->config);
2261 /* Inform if part is not ready */
2262 if (!(data->config & 0x04)) {
2263 dev_err(dev, "Device is not ready.\n");
2268 * Determine which optional fan and pwm features are enabled (only
2269 * valid for I2C devices)
2271 if (client) { /* I2C chip */
2272 data->config2 = dme1737_read(data, DME1737_REG_CONFIG2);
2273 /* Check if optional fan3 input is enabled */
2274 if (data->config2 & 0x04)
2275 data->has_features |= HAS_FAN(2);
2278 * Fan4 and pwm3 are only available if the client's I2C address
2279 * is the default 0x2e. Otherwise the I/Os associated with
2280 * these functions are used for addr enable/select.
2282 if (client->addr == 0x2e)
2283 data->has_features |= HAS_FAN(3) | HAS_PWM(2);
2286 * Determine which of the optional fan[5-6] and pwm[5-6]
2287 * features are enabled. For this, we need to query the runtime
2288 * registers through the Super-IO LPC interface. Try both
2289 * config ports 0x2e and 0x4e.
2291 if (dme1737_i2c_get_features(0x2e, data) &&
2292 dme1737_i2c_get_features(0x4e, data)) {
2293 dev_warn(dev, "Failed to query Super-IO for optional "
2298 /* Fan[1-2] and pwm[1-2] are present in all chips */
2299 data->has_features |= HAS_FAN(0) | HAS_FAN(1) | HAS_PWM(0) | HAS_PWM(1);
2301 /* Chip-dependent features */
2302 switch (data->type) {
2304 data->has_features |= HAS_TEMP_OFFSET | HAS_VID | HAS_ZONE3 |
2305 HAS_ZONE_HYST | HAS_PWM_MIN;
2308 data->has_features |= HAS_TEMP_OFFSET | HAS_ZONE3 |
2309 HAS_ZONE_HYST | HAS_PWM_MIN | HAS_FAN(2) | HAS_PWM(2);
2312 data->has_features |= HAS_ZONE3;
2315 data->has_features |= HAS_FAN(2) | HAS_PWM(2) | HAS_IN7;
2321 dev_info(dev, "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, "
2322 "fan3=%s, fan4=%s, fan5=%s, fan6=%s.\n",
2323 (data->has_features & HAS_PWM(2)) ? "yes" : "no",
2324 (data->has_features & HAS_PWM(4)) ? "yes" : "no",
2325 (data->has_features & HAS_PWM(5)) ? "yes" : "no",
2326 (data->has_features & HAS_FAN(2)) ? "yes" : "no",
2327 (data->has_features & HAS_FAN(3)) ? "yes" : "no",
2328 (data->has_features & HAS_FAN(4)) ? "yes" : "no",
2329 (data->has_features & HAS_FAN(5)) ? "yes" : "no");
2331 reg = dme1737_read(data, DME1737_REG_TACH_PWM);
2332 /* Inform if fan-to-pwm mapping differs from the default */
2333 if (client && reg != 0xa4) { /* I2C chip */
2334 dev_warn(dev, "Non-standard fan to pwm mapping: "
2335 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, "
2336 "fan4->pwm%d. Please report to the driver "
2338 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1,
2339 ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1);
2340 } else if (!client && reg != 0x24) { /* ISA chip */
2341 dev_warn(dev, "Non-standard fan to pwm mapping: "
2342 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. "
2343 "Please report to the driver maintainer.\n",
2344 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1,
2345 ((reg >> 4) & 0x03) + 1);
2349 * Switch pwm[1-3] to manual mode if they are currently disabled and
2350 * set the duty-cycles to 0% (which is identical to the PWMs being
2353 if (!(data->config & 0x02)) {
2354 for (ix = 0; ix < 3; ix++) {
2355 data->pwm_config[ix] = dme1737_read(data,
2356 DME1737_REG_PWM_CONFIG(ix));
2357 if ((data->has_features & HAS_PWM(ix)) &&
2358 (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) {
2359 dev_info(dev, "Switching pwm%d to "
2360 "manual mode.\n", ix + 1);
2361 data->pwm_config[ix] = PWM_EN_TO_REG(1,
2362 data->pwm_config[ix]);
2363 dme1737_write(data, DME1737_REG_PWM(ix), 0);
2365 DME1737_REG_PWM_CONFIG(ix),
2366 data->pwm_config[ix]);
2371 /* Initialize the default PWM auto channels zone (acz) assignments */
2372 data->pwm_acz[0] = 1; /* pwm1 -> zone1 */
2373 data->pwm_acz[1] = 2; /* pwm2 -> zone2 */
2374 data->pwm_acz[2] = 4; /* pwm3 -> zone3 */
2377 if (data->has_features & HAS_VID)
2378 data->vrm = vid_which_vrm();
2383 /* ---------------------------------------------------------------------
2384 * I2C device detection and registration
2385 * --------------------------------------------------------------------- */
2387 static struct i2c_driver dme1737_i2c_driver;
2389 static int dme1737_i2c_get_features(int sio_cip, struct dme1737_data *data)
2394 dme1737_sio_enter(sio_cip);
2398 * We currently know about two kinds of DME1737 and SCH5027.
2400 reg = force_id ? force_id : dme1737_sio_inb(sio_cip, 0x20);
2401 if (!(reg == DME1737_ID_1 || reg == DME1737_ID_2 ||
2402 reg == SCH5027_ID)) {
2407 /* Select logical device A (runtime registers) */
2408 dme1737_sio_outb(sio_cip, 0x07, 0x0a);
2410 /* Get the base address of the runtime registers */
2411 addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
2412 dme1737_sio_inb(sio_cip, 0x61);
2419 * Read the runtime registers to determine which optional features
2420 * are enabled and available. Bits [3:2] of registers 0x43-0x46 are set
2421 * to '10' if the respective feature is enabled.
2423 if ((inb(addr + 0x43) & 0x0c) == 0x08) /* fan6 */
2424 data->has_features |= HAS_FAN(5);
2425 if ((inb(addr + 0x44) & 0x0c) == 0x08) /* pwm6 */
2426 data->has_features |= HAS_PWM(5);
2427 if ((inb(addr + 0x45) & 0x0c) == 0x08) /* fan5 */
2428 data->has_features |= HAS_FAN(4);
2429 if ((inb(addr + 0x46) & 0x0c) == 0x08) /* pwm5 */
2430 data->has_features |= HAS_PWM(4);
2433 dme1737_sio_exit(sio_cip);
2438 /* Return 0 if detection is successful, -ENODEV otherwise */
2439 static int dme1737_i2c_detect(struct i2c_client *client,
2440 struct i2c_board_info *info)
2442 struct i2c_adapter *adapter = client->adapter;
2443 struct device *dev = &adapter->dev;
2444 u8 company, verstep = 0;
2447 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
2450 company = i2c_smbus_read_byte_data(client, DME1737_REG_COMPANY);
2451 verstep = i2c_smbus_read_byte_data(client, DME1737_REG_VERSTEP);
2453 if (company == DME1737_COMPANY_SMSC &&
2454 verstep == SCH5027_VERSTEP) {
2456 } else if (company == DME1737_COMPANY_SMSC &&
2457 (verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP) {
2463 dev_info(dev, "Found a %s chip at 0x%02x (rev 0x%02x).\n",
2464 verstep == SCH5027_VERSTEP ? "SCH5027" : "DME1737",
2465 client->addr, verstep);
2466 strlcpy(info->type, name, I2C_NAME_SIZE);
2471 static int dme1737_i2c_probe(struct i2c_client *client,
2472 const struct i2c_device_id *id)
2474 struct dme1737_data *data;
2475 struct device *dev = &client->dev;
2478 data = devm_kzalloc(dev, sizeof(struct dme1737_data), GFP_KERNEL);
2482 i2c_set_clientdata(client, data);
2483 data->type = id->driver_data;
2484 data->client = client;
2485 data->name = client->name;
2486 mutex_init(&data->update_lock);
2488 /* Initialize the DME1737 chip */
2489 err = dme1737_init_device(dev);
2491 dev_err(dev, "Failed to initialize device.\n");
2495 /* Create sysfs files */
2496 err = dme1737_create_files(dev);
2498 dev_err(dev, "Failed to create sysfs files.\n");
2502 /* Register device */
2503 data->hwmon_dev = hwmon_device_register(dev);
2504 if (IS_ERR(data->hwmon_dev)) {
2505 dev_err(dev, "Failed to register device.\n");
2506 err = PTR_ERR(data->hwmon_dev);
2513 dme1737_remove_files(dev);
2517 static int dme1737_i2c_remove(struct i2c_client *client)
2519 struct dme1737_data *data = i2c_get_clientdata(client);
2521 hwmon_device_unregister(data->hwmon_dev);
2522 dme1737_remove_files(&client->dev);
2527 static const struct i2c_device_id dme1737_id[] = {
2528 { "dme1737", dme1737 },
2529 { "sch5027", sch5027 },
2532 MODULE_DEVICE_TABLE(i2c, dme1737_id);
2534 static struct i2c_driver dme1737_i2c_driver = {
2535 .class = I2C_CLASS_HWMON,
2539 .probe = dme1737_i2c_probe,
2540 .remove = dme1737_i2c_remove,
2541 .id_table = dme1737_id,
2542 .detect = dme1737_i2c_detect,
2543 .address_list = normal_i2c,
2546 /* ---------------------------------------------------------------------
2547 * ISA device detection and registration
2548 * --------------------------------------------------------------------- */
2550 static int __init dme1737_isa_detect(int sio_cip, unsigned short *addr)
2553 unsigned short base_addr;
2555 dme1737_sio_enter(sio_cip);
2559 * We currently know about SCH3112, SCH3114, SCH3116, and SCH5127
2561 reg = force_id ? force_id : dme1737_sio_inb(sio_cip, 0x20);
2562 if (!(reg == SCH3112_ID || reg == SCH3114_ID || reg == SCH3116_ID ||
2563 reg == SCH5127_ID)) {
2568 /* Select logical device A (runtime registers) */
2569 dme1737_sio_outb(sio_cip, 0x07, 0x0a);
2571 /* Get the base address of the runtime registers */
2572 base_addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
2573 dme1737_sio_inb(sio_cip, 0x61);
2575 pr_err("Base address not set\n");
2581 * Access to the hwmon registers is through an index/data register
2582 * pair located at offset 0x70/0x71.
2584 *addr = base_addr + 0x70;
2587 dme1737_sio_exit(sio_cip);
2591 static int __init dme1737_isa_device_add(unsigned short addr)
2593 struct resource res = {
2595 .end = addr + DME1737_EXTENT - 1,
2597 .flags = IORESOURCE_IO,
2601 err = acpi_check_resource_conflict(&res);
2605 pdev = platform_device_alloc("dme1737", addr);
2607 pr_err("Failed to allocate device\n");
2612 err = platform_device_add_resources(pdev, &res, 1);
2614 pr_err("Failed to add device resource (err = %d)\n", err);
2615 goto exit_device_put;
2618 err = platform_device_add(pdev);
2620 pr_err("Failed to add device (err = %d)\n", err);
2621 goto exit_device_put;
2627 platform_device_put(pdev);
2633 static int dme1737_isa_probe(struct platform_device *pdev)
2636 struct resource *res;
2637 struct dme1737_data *data;
2638 struct device *dev = &pdev->dev;
2641 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
2642 if (!devm_request_region(dev, res->start, DME1737_EXTENT, "dme1737")) {
2643 dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
2644 (unsigned short)res->start,
2645 (unsigned short)res->start + DME1737_EXTENT - 1);
2649 data = devm_kzalloc(dev, sizeof(struct dme1737_data), GFP_KERNEL);
2653 data->addr = res->start;
2654 platform_set_drvdata(pdev, data);
2656 /* Skip chip detection if module is loaded with force_id parameter */
2661 data->type = sch311x;
2664 data->type = sch5127;
2667 company = dme1737_read(data, DME1737_REG_COMPANY);
2668 device = dme1737_read(data, DME1737_REG_DEVICE);
2670 if ((company == DME1737_COMPANY_SMSC) &&
2671 (device == SCH311X_DEVICE)) {
2672 data->type = sch311x;
2673 } else if ((company == DME1737_COMPANY_SMSC) &&
2674 (device == SCH5127_DEVICE)) {
2675 data->type = sch5127;
2681 if (data->type == sch5127)
2682 data->name = "sch5127";
2684 data->name = "sch311x";
2686 /* Initialize the mutex */
2687 mutex_init(&data->update_lock);
2689 dev_info(dev, "Found a %s chip at 0x%04x\n",
2690 data->type == sch5127 ? "SCH5127" : "SCH311x", data->addr);
2692 /* Initialize the chip */
2693 err = dme1737_init_device(dev);
2695 dev_err(dev, "Failed to initialize device.\n");
2699 /* Create sysfs files */
2700 err = dme1737_create_files(dev);
2702 dev_err(dev, "Failed to create sysfs files.\n");
2706 /* Register device */
2707 data->hwmon_dev = hwmon_device_register(dev);
2708 if (IS_ERR(data->hwmon_dev)) {
2709 dev_err(dev, "Failed to register device.\n");
2710 err = PTR_ERR(data->hwmon_dev);
2711 goto exit_remove_files;
2717 dme1737_remove_files(dev);
2721 static int dme1737_isa_remove(struct platform_device *pdev)
2723 struct dme1737_data *data = platform_get_drvdata(pdev);
2725 hwmon_device_unregister(data->hwmon_dev);
2726 dme1737_remove_files(&pdev->dev);
2731 static struct platform_driver dme1737_isa_driver = {
2733 .owner = THIS_MODULE,
2736 .probe = dme1737_isa_probe,
2737 .remove = dme1737_isa_remove,
2740 /* ---------------------------------------------------------------------
2741 * Module initialization and cleanup
2742 * --------------------------------------------------------------------- */
2744 static int __init dme1737_init(void)
2747 unsigned short addr;
2749 err = i2c_add_driver(&dme1737_i2c_driver);
2753 if (dme1737_isa_detect(0x2e, &addr) &&
2754 dme1737_isa_detect(0x4e, &addr) &&
2756 (dme1737_isa_detect(0x162e, &addr) &&
2757 dme1737_isa_detect(0x164e, &addr)))) {
2758 /* Return 0 if we didn't find an ISA device */
2762 err = platform_driver_register(&dme1737_isa_driver);
2764 goto exit_del_i2c_driver;
2766 /* Sets global pdev as a side effect */
2767 err = dme1737_isa_device_add(addr);
2769 goto exit_del_isa_driver;
2773 exit_del_isa_driver:
2774 platform_driver_unregister(&dme1737_isa_driver);
2775 exit_del_i2c_driver:
2776 i2c_del_driver(&dme1737_i2c_driver);
2781 static void __exit dme1737_exit(void)
2784 platform_device_unregister(pdev);
2785 platform_driver_unregister(&dme1737_isa_driver);
2788 i2c_del_driver(&dme1737_i2c_driver);
2791 MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>");
2792 MODULE_DESCRIPTION("DME1737 sensors");
2793 MODULE_LICENSE("GPL");
2795 module_init(dme1737_init);
2796 module_exit(dme1737_exit);