1	// SPDX-License-Identifier: GPL-2.0-or-later
2	/*
3	* w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
4	* monitoring
5	* Copyright (c) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
6	* Philip Edelbrock <phil@netroedge.com>,
7	* and Mark Studebaker <mdsxyz123@yahoo.com>
8	* Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
9	* Copyright (c) 2007 - 1012 Jean Delvare <jdelvare@suse.de>
10	*/
11
12	/*
13	* Supports following chips:
14	*
15	* Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
16	* w83627hf 9 3 2 3 0x20 0x5ca3 no yes(LPC)
17	* w83627thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
18	* w83637hf 7 3 3 3 0x80 0x5ca3 no yes(LPC)
19	* w83687thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
20	* w83697hf 8 2 2 2 0x60 0x5ca3 no yes(LPC)
21	*
22	* For other winbond chips, and for i2c support in the above chips,
23	* use w83781d.c.
24	*
25	* Note: automatic ("cruise") fan control for 697, 637 & 627thf not
26	* supported yet.
27	*/
28
29	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30
31	#include <linux/module.h>
32	#include <linux/init.h>
33	#include <linux/slab.h>
34	#include <linux/jiffies.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/ioport.h>
42	#include <linux/acpi.h>
43	#include <linux/io.h>
44	#include "lm75.h"
45
46	static struct platform_device *pdev;
47
48	#define DRVNAME "w83627hf"
49	enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
50
51	struct w83627hf_sio_data {
52	enum chips type;
53	int sioaddr;
54	};
55
56	static u8 force_i2c = 0x1f;
57	module_param(force_i2c, byte, 0);
58	MODULE_PARM_DESC(force_i2c,
59	"Initialize the i2c address of the sensors");
60
61	static bool init = 1;
62	module_param(init, bool, 0);
63	MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
64
65	static unsigned short force_id;
66	module_param(force_id, ushort, 0);
67	MODULE_PARM_DESC(force_id, "Override the detected device ID");
68
69	/* modified from kernel/include/traps.c */
70	#define DEV 0x07 /* Register: Logical device select */
71
72	/* logical device numbers for superio_select (below) */
73	#define W83627HF_LD_FDC 0x00
74	#define W83627HF_LD_PRT 0x01
75	#define W83627HF_LD_UART1 0x02
76	#define W83627HF_LD_UART2 0x03
77	#define W83627HF_LD_KBC 0x05
78	#define W83627HF_LD_CIR 0x06 /* w83627hf only */
79	#define W83627HF_LD_GAME 0x07
80	#define W83627HF_LD_MIDI 0x07
81	#define W83627HF_LD_GPIO1 0x07
82	#define W83627HF_LD_GPIO5 0x07 /* w83627thf only */
83	#define W83627HF_LD_GPIO2 0x08
84	#define W83627HF_LD_GPIO3 0x09
85	#define W83627HF_LD_GPIO4 0x09 /* w83627thf only */
86	#define W83627HF_LD_ACPI 0x0a
87	#define W83627HF_LD_HWM 0x0b
88
89	#define DEVID 0x20 /* Register: Device ID */
90
91	#define W83627THF_GPIO5_EN 0x30 /* w83627thf only */
92	#define W83627THF_GPIO5_IOSR 0xf3 /* w83627thf only */
93	#define W83627THF_GPIO5_DR 0xf4 /* w83627thf only */
94
95	#define W83687THF_VID_EN 0x29 /* w83687thf only */
96	#define W83687THF_VID_CFG 0xF0 /* w83687thf only */
97	#define W83687THF_VID_DATA 0xF1 /* w83687thf only */
98
99	static inline void
100	superio_outb(struct w83627hf_sio_data *sio, int reg, int val)
101	{
102	outb(value: reg, port: sio->sioaddr);
103	outb(value: val, port: sio->sioaddr + 1);
104	}
105
106	static inline int
107	superio_inb(struct w83627hf_sio_data *sio, int reg)
108	{
109	outb(value: reg, port: sio->sioaddr);
110	return inb(port: sio->sioaddr + 1);
111	}
112
113	static inline void
114	superio_select(struct w83627hf_sio_data *sio, int ld)
115	{
116	outb(DEV, port: sio->sioaddr);
117	outb(value: ld, port: sio->sioaddr + 1);
118	}
119
120	static inline int
121	superio_enter(struct w83627hf_sio_data *sio)
122	{
123	if (!request_muxed_region(sio->sioaddr, 2, DRVNAME))
124	return -EBUSY;
125
126	outb(value: 0x87, port: sio->sioaddr);
127	outb(value: 0x87, port: sio->sioaddr);
128
129	return 0;
130	}
131
132	static inline void
133	superio_exit(struct w83627hf_sio_data *sio)
134	{
135	outb(value: 0xAA, port: sio->sioaddr);
136	release_region(sio->sioaddr, 2);
137	}
138
139	#define W627_DEVID 0x52
140	#define W627THF_DEVID 0x82
141	#define W697_DEVID 0x60
142	#define W637_DEVID 0x70
143	#define W687THF_DEVID 0x85
144	#define WINB_ACT_REG 0x30
145	#define WINB_BASE_REG 0x60
146	/* Constants specified below */
147
148	/* Alignment of the base address */
149	#define WINB_ALIGNMENT ~7
150
151	/* Offset & size of I/O region we are interested in */
152	#define WINB_REGION_OFFSET 5
153	#define WINB_REGION_SIZE 2
154
155	/* Where are the sensors address/data registers relative to the region offset */
156	#define W83781D_ADDR_REG_OFFSET 0
157	#define W83781D_DATA_REG_OFFSET 1
158
159	/* The W83781D registers */
160	/* The W83782D registers for nr=7,8 are in bank 5 */
161	#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
162	(0x554 + (((nr) - 7) * 2)))
163	#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
164	(0x555 + (((nr) - 7) * 2)))
165	#define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
166	(0x550 + (nr) - 7))
167
168	/* nr:0-2 for fans:1-3 */
169	#define W83627HF_REG_FAN_MIN(nr) (0x3b + (nr))
170	#define W83627HF_REG_FAN(nr) (0x28 + (nr))
171
172	#define W83627HF_REG_TEMP2_CONFIG 0x152
173	#define W83627HF_REG_TEMP3_CONFIG 0x252
174	/* these are zero-based, unlike config constants above */
175	static const u16 w83627hf_reg_temp[] = { 0x27, 0x150, 0x250 };
176	static const u16 w83627hf_reg_temp_hyst[] = { 0x3A, 0x153, 0x253 };
177	static const u16 w83627hf_reg_temp_over[] = { 0x39, 0x155, 0x255 };
178
179	#define W83781D_REG_BANK 0x4E
180
181	#define W83781D_REG_CONFIG 0x40
182	#define W83781D_REG_ALARM1 0x459
183	#define W83781D_REG_ALARM2 0x45A
184	#define W83781D_REG_ALARM3 0x45B
185
186	#define W83781D_REG_BEEP_CONFIG 0x4D
187	#define W83781D_REG_BEEP_INTS1 0x56
188	#define W83781D_REG_BEEP_INTS2 0x57
189	#define W83781D_REG_BEEP_INTS3 0x453
190
191	#define W83781D_REG_VID_FANDIV 0x47
192
193	#define W83781D_REG_CHIPID 0x49
194	#define W83781D_REG_WCHIPID 0x58
195	#define W83781D_REG_CHIPMAN 0x4F
196	#define W83781D_REG_PIN 0x4B
197
198	#define W83781D_REG_VBAT 0x5D
199
200	#define W83627HF_REG_PWM1 0x5A
201	#define W83627HF_REG_PWM2 0x5B
202
203	static const u8 W83627THF_REG_PWM_ENABLE[] = {
204	0x04, /* FAN 1 mode */
205	0x04, /* FAN 2 mode */
206	0x12, /* FAN AUX mode */
207	};
208	static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };
209
210	#define W83627THF_REG_PWM1 0x01 /* 697HF/637HF/687THF too */
211	#define W83627THF_REG_PWM2 0x03 /* 697HF/637HF/687THF too */
212	#define W83627THF_REG_PWM3 0x11 /* 637HF/687THF too */
213
214	#define W83627THF_REG_VRM_OVT_CFG 0x18 /* 637HF/687THF too */
215
216	static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
217	static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
218	W83627THF_REG_PWM3 };
219	#define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
220	regpwm_627hf[nr] : regpwm[nr])
221
222	#define W83627HF_REG_PWM_FREQ 0x5C /* Only for the 627HF */
223
224	#define W83637HF_REG_PWM_FREQ1 0x00 /* 697HF/687THF too */
225	#define W83637HF_REG_PWM_FREQ2 0x02 /* 697HF/687THF too */
226	#define W83637HF_REG_PWM_FREQ3 0x10 /* 687THF too */
227
228	static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
229	W83637HF_REG_PWM_FREQ2,
230	W83637HF_REG_PWM_FREQ3 };
231
232	#define W83627HF_BASE_PWM_FREQ 46870
233
234	#define W83781D_REG_I2C_ADDR 0x48
235	#define W83781D_REG_I2C_SUBADDR 0x4A
236
237	/* Sensor selection */
238	#define W83781D_REG_SCFG1 0x5D
239	static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
240	#define W83781D_REG_SCFG2 0x59
241	static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
242	#define W83781D_DEFAULT_BETA 3435
243
244	/*
245	* Conversions. Limit checking is only done on the TO_REG
246	* variants. Note that you should be a bit careful with which arguments
247	* these macros are called: arguments may be evaluated more than once.
248	* Fixing this is just not worth it.
249	*/
250	#define IN_TO_REG(val) (clamp_val((((val) + 8) / 16), 0, 255))
251	#define IN_FROM_REG(val) ((val) * 16)
252
253	static inline u8 FAN_TO_REG(long rpm, int div)
254	{
255	if (rpm == 0)
256	return 255;
257	rpm = clamp_val(rpm, 1, 1000000);
258	return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
259	}
260
261	#define TEMP_MIN (-128000)
262	#define TEMP_MAX ( 127000)
263
264	/*
265	* TEMP: 0.001C/bit (-128C to +127C)
266	* REG: 1C/bit, two's complement
267	*/
268	static u8 TEMP_TO_REG(long temp)
269	{
270	int ntemp = clamp_val(temp, TEMP_MIN, TEMP_MAX);
271	ntemp += (ntemp < 0 ? -500 : 500);
272	return (u8)(ntemp / 1000);
273	}
274
275	static int TEMP_FROM_REG(u8 reg)
276	{
277	return (s8)reg * 1000;
278	}
279
280	#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
281
282	#define PWM_TO_REG(val) (clamp_val((val), 0, 255))
283
284	static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
285	{
286	unsigned long freq;
287	freq = W83627HF_BASE_PWM_FREQ >> reg;
288	return freq;
289	}
290	static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
291	{
292	u8 i;
293	/*
294	* Only 5 dividers (1 2 4 8 16)
295	* Search for the nearest available frequency
296	*/
297	for (i = 0; i < 4; i++) {
298	if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
299	(W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
300	break;
301	}
302	return i;
303	}
304
305	static inline unsigned long pwm_freq_from_reg(u8 reg)
306	{
307	/* Clock bit 8 -> 180 kHz or 24 MHz */
308	unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
309
310	reg &= 0x7f;
311	/* This should not happen but anyway... */
312	if (reg == 0)
313	reg++;
314	return clock / (reg << 8);
315	}
316	static inline u8 pwm_freq_to_reg(unsigned long val)
317	{
318	/* Minimum divider value is 0x01 and maximum is 0x7F */
319	if (val >= 93750) /* The highest we can do */
320	return 0x01;
321	if (val >= 720) /* Use 24 MHz clock */
322	return 24000000UL / (val << 8);
323	if (val < 6) /* The lowest we can do */
324	return 0xFF;
325	else /* Use 180 kHz clock */
326	return 0x80 | (180000UL / (val << 8));
327	}
328
329	#define BEEP_MASK_FROM_REG(val) ((val) & 0xff7fff)
330	#define BEEP_MASK_TO_REG(val) ((val) & 0xff7fff)
331
332	#define DIV_FROM_REG(val) (1 << (val))
333
334	static inline u8 DIV_TO_REG(long val)
335	{
336	int i;
337	val = clamp_val(val, 1, 128) >> 1;
338	for (i = 0; i < 7; i++) {
339	if (val == 0)
340	break;
341	val >>= 1;
342	}
343	return (u8)i;
344	}
345
346	/*
347	* For each registered chip, we need to keep some data in memory.
348	* The structure is dynamically allocated.
349	*/
350	struct w83627hf_data {
351	unsigned short addr;
352	const char *name;
353	struct device *hwmon_dev;
354	struct mutex lock;
355	enum chips type;
356
357	struct mutex update_lock;
358	bool valid; /* true if following fields are valid */
359	unsigned long last_updated; /* In jiffies */
360
361	u8 in[9]; /* Register value */
362	u8 in_max[9]; /* Register value */
363	u8 in_min[9]; /* Register value */
364	u8 fan[3]; /* Register value */
365	u8 fan_min[3]; /* Register value */
366	u16 temp[3]; /* Register value */
367	u16 temp_max[3]; /* Register value */
368	u16 temp_max_hyst[3]; /* Register value */
369	u8 fan_div[3]; /* Register encoding, shifted right */
370	u8 vid; /* Register encoding, combined */
371	u32 alarms; /* Register encoding, combined */
372	u32 beep_mask; /* Register encoding, combined */
373	u8 pwm[3]; /* Register value */
374	u8 pwm_enable[3]; /* 1 = manual
375	* 2 = thermal cruise (also called SmartFan I)
376	* 3 = fan speed cruise
377	*/
378	u8 pwm_freq[3]; /* Register value */
379	u16 sens[3]; /* 1 = pentium diode; 2 = 3904 diode;
380	* 4 = thermistor
381	*/
382	u8 vrm;
383	u8 vrm_ovt; /* Register value, 627THF/637HF/687THF only */
384
385	#ifdef CONFIG_PM
386	/* Remember extra register values over suspend/resume */
387	u8 scfg1;
388	u8 scfg2;
389	#endif
390	};
391
392	/* Registers 0x50-0x5f are banked */
393	static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
394	{
395	if ((reg & 0x00f0) == 0x50) {
396	outb_p(W83781D_REG_BANK, port: data->addr + W83781D_ADDR_REG_OFFSET);
397	outb_p(value: reg >> 8, port: data->addr + W83781D_DATA_REG_OFFSET);
398	}
399	}
400
401	/* Not strictly necessary, but play it safe for now */
402	static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
403	{
404	if (reg & 0xff00) {
405	outb_p(W83781D_REG_BANK, port: data->addr + W83781D_ADDR_REG_OFFSET);
406	outb_p(value: 0, port: data->addr + W83781D_DATA_REG_OFFSET);
407	}
408	}
409
410	static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)
411	{
412	int res, word_sized;
413
414	mutex_lock(&data->lock);
415	word_sized = (((reg & 0xff00) == 0x100)
416	|| ((reg & 0xff00) == 0x200))
417	&& (((reg & 0x00ff) == 0x50)
418	|| ((reg & 0x00ff) == 0x53)
419	|| ((reg & 0x00ff) == 0x55));
420	w83627hf_set_bank(data, reg);
421	outb_p(value: reg & 0xff, port: data->addr + W83781D_ADDR_REG_OFFSET);
422	res = inb_p(port: data->addr + W83781D_DATA_REG_OFFSET);
423	if (word_sized) {
424	outb_p(value: (reg & 0xff) + 1,
425	port: data->addr + W83781D_ADDR_REG_OFFSET);
426	res =
427	(res << 8) + inb_p(port: data->addr +
428	W83781D_DATA_REG_OFFSET);
429	}
430	w83627hf_reset_bank(data, reg);
431	mutex_unlock(lock: &data->lock);
432	return res;
433	}
434
435	static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value)
436	{
437	int word_sized;
438
439	mutex_lock(&data->lock);
440	word_sized = (((reg & 0xff00) == 0x100)
441	|| ((reg & 0xff00) == 0x200))
442	&& (((reg & 0x00ff) == 0x53)
443	|| ((reg & 0x00ff) == 0x55));
444	w83627hf_set_bank(data, reg);
445	outb_p(value: reg & 0xff, port: data->addr + W83781D_ADDR_REG_OFFSET);
446	if (word_sized) {
447	outb_p(value: value >> 8,
448	port: data->addr + W83781D_DATA_REG_OFFSET);
449	outb_p(value: (reg & 0xff) + 1,
450	port: data->addr + W83781D_ADDR_REG_OFFSET);
451	}
452	outb_p(value: value & 0xff,
453	port: data->addr + W83781D_DATA_REG_OFFSET);
454	w83627hf_reset_bank(data, reg);
455	mutex_unlock(lock: &data->lock);
456	return 0;
457	}
458
459	static void w83627hf_update_fan_div(struct w83627hf_data *data)
460	{
461	int reg;
462
463	reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
464	data->fan_div[0] = (reg >> 4) & 0x03;
465	data->fan_div[1] = (reg >> 6) & 0x03;
466	if (data->type != w83697hf) {
467	data->fan_div[2] = (w83627hf_read_value(data,
468	W83781D_REG_PIN) >> 6) & 0x03;
469	}
470	reg = w83627hf_read_value(data, W83781D_REG_VBAT);
471	data->fan_div[0] |= (reg >> 3) & 0x04;
472	data->fan_div[1] |= (reg >> 4) & 0x04;
473	if (data->type != w83697hf)
474	data->fan_div[2] |= (reg >> 5) & 0x04;
475	}
476
477	static struct w83627hf_data *w83627hf_update_device(struct device *dev)
478	{
479	struct w83627hf_data *data = dev_get_drvdata(dev);
480	int i, num_temps = (data->type == w83697hf) ? 2 : 3;
481	int num_pwms = (data->type == w83697hf) ? 2 : 3;
482
483	mutex_lock(&data->update_lock);
484
485	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
486	|| !data->valid) {
487	for (i = 0; i <= 8; i++) {
488	/* skip missing sensors */
489	if (((data->type == w83697hf) && (i == 1)) ||
490	((data->type != w83627hf && data->type != w83697hf)
491	&& (i == 5 || i == 6)))
492	continue;
493	data->in[i] =
494	w83627hf_read_value(data, W83781D_REG_IN(i));
495	data->in_min[i] =
496	w83627hf_read_value(data,
497	W83781D_REG_IN_MIN(i));
498	data->in_max[i] =
499	w83627hf_read_value(data,
500	W83781D_REG_IN_MAX(i));
501	}
502	for (i = 0; i <= 2; i++) {
503	data->fan[i] =
504	w83627hf_read_value(data, W83627HF_REG_FAN(i));
505	data->fan_min[i] =
506	w83627hf_read_value(data,
507	W83627HF_REG_FAN_MIN(i));
508	}
509	for (i = 0; i <= 2; i++) {
510	u8 tmp = w83627hf_read_value(data,
511	W836X7HF_REG_PWM(data->type, i));
512	/* bits 0-3 are reserved in 627THF */
513	if (data->type == w83627thf)
514	tmp &= 0xf0;
515	data->pwm[i] = tmp;
516	if (i == 1 &&
517	(data->type == w83627hf || data->type == w83697hf))
518	break;
519	}
520	if (data->type == w83627hf) {
521	u8 tmp = w83627hf_read_value(data,
522	W83627HF_REG_PWM_FREQ);
523	data->pwm_freq[0] = tmp & 0x07;
524	data->pwm_freq[1] = (tmp >> 4) & 0x07;
525	} else if (data->type != w83627thf) {
526	for (i = 1; i <= 3; i++) {
527	data->pwm_freq[i - 1] =
528	w83627hf_read_value(data,
529	reg: W83637HF_REG_PWM_FREQ[i - 1]);
530	if (i == 2 && (data->type == w83697hf))
531	break;
532	}
533	}
534	if (data->type != w83627hf) {
535	for (i = 0; i < num_pwms; i++) {
536	u8 tmp = w83627hf_read_value(data,
537	reg: W83627THF_REG_PWM_ENABLE[i]);
538	data->pwm_enable[i] =
539	((tmp >> W83627THF_PWM_ENABLE_SHIFT[i])
540	& 0x03) + 1;
541	}
542	}
543	for (i = 0; i < num_temps; i++) {
544	data->temp[i] = w83627hf_read_value(
545	data, reg: w83627hf_reg_temp[i]);
546	data->temp_max[i] = w83627hf_read_value(
547	data, reg: w83627hf_reg_temp_over[i]);
548	data->temp_max_hyst[i] = w83627hf_read_value(
549	data, reg: w83627hf_reg_temp_hyst[i]);
550	}
551
552	w83627hf_update_fan_div(data);
553
554	data->alarms =
555	w83627hf_read_value(data, W83781D_REG_ALARM1) |
556	(w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
557	(w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
558	i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
559	data->beep_mask = (i << 8) |
560	w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
561	w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
562	data->last_updated = jiffies;
563	data->valid = true;
564	}
565
566	mutex_unlock(lock: &data->update_lock);
567
568	return data;
569	}
570
571	#ifdef CONFIG_PM
572	static int w83627hf_suspend(struct device *dev)
573	{
574	struct w83627hf_data *data = w83627hf_update_device(dev);
575
576	mutex_lock(&data->update_lock);
577	data->scfg1 = w83627hf_read_value(data, W83781D_REG_SCFG1);
578	data->scfg2 = w83627hf_read_value(data, W83781D_REG_SCFG2);
579	mutex_unlock(lock: &data->update_lock);
580
581	return 0;
582	}
583
584	static int w83627hf_resume(struct device *dev)
585	{
586	struct w83627hf_data *data = dev_get_drvdata(dev);
587	int i, num_temps = (data->type == w83697hf) ? 2 : 3;
588
589	/* Restore limits */
590	mutex_lock(&data->update_lock);
591	for (i = 0; i <= 8; i++) {
592	/* skip missing sensors */
593	if (((data->type == w83697hf) && (i == 1)) ||
594	((data->type != w83627hf && data->type != w83697hf)
595	&& (i == 5 || i == 6)))
596	continue;
597	w83627hf_write_value(data, W83781D_REG_IN_MAX(i),
598	value: data->in_max[i]);
599	w83627hf_write_value(data, W83781D_REG_IN_MIN(i),
600	value: data->in_min[i]);
601	}
602	for (i = 0; i <= 2; i++)
603	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(i),
604	value: data->fan_min[i]);
605	for (i = 0; i < num_temps; i++) {
606	w83627hf_write_value(data, reg: w83627hf_reg_temp_over[i],
607	value: data->temp_max[i]);
608	w83627hf_write_value(data, reg: w83627hf_reg_temp_hyst[i],
609	value: data->temp_max_hyst[i]);
610	}
611
612	/* Fixup BIOS bugs */
613	if (data->type == w83627thf || data->type == w83637hf ||
614	data->type == w83687thf)
615	w83627hf_write_value(data, W83627THF_REG_VRM_OVT_CFG,
616	value: data->vrm_ovt);
617	w83627hf_write_value(data, W83781D_REG_SCFG1, value: data->scfg1);
618	w83627hf_write_value(data, W83781D_REG_SCFG2, value: data->scfg2);
619
620	/* Force re-reading all values */
621	data->valid = false;
622	mutex_unlock(lock: &data->update_lock);
623
624	return 0;
625	}
626
627	static const struct dev_pm_ops w83627hf_dev_pm_ops = {
628	.suspend = w83627hf_suspend,
629	.resume = w83627hf_resume,
630	};
631
632	#define W83627HF_DEV_PM_OPS (&w83627hf_dev_pm_ops)
633	#else
634	#define W83627HF_DEV_PM_OPS NULL
635	#endif /* CONFIG_PM */
636
637	static int w83627thf_read_gpio5(struct platform_device *pdev)
638	{
639	struct w83627hf_sio_data *sio_data = dev_get_platdata(dev: &pdev->dev);
640	int res = 0xff, sel;
641
642	if (superio_enter(sio: sio_data)) {
643	/*
644	* Some other driver reserved the address space for itself.
645	* We don't want to fail driver instantiation because of that,
646	* so display a warning and keep going.
647	*/
648	dev_warn(&pdev->dev,
649	"Can not read VID data: Failed to enable SuperIO access\n");
650	return res;
651	}
652
653	superio_select(sio: sio_data, W83627HF_LD_GPIO5);
654
655	res = 0xff;
656
657	/* Make sure these GPIO pins are enabled */
658	if (!(superio_inb(sio: sio_data, W83627THF_GPIO5_EN) & (1<<3))) {
659	dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n");
660	goto exit;
661	}
662
663	/*
664	* Make sure the pins are configured for input
665	* There must be at least five (VRM 9), and possibly 6 (VRM 10)
666	*/
667	sel = superio_inb(sio: sio_data, W83627THF_GPIO5_IOSR) & 0x3f;
668	if ((sel & 0x1f) != 0x1f) {
669	dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
670	"function\n");
671	goto exit;
672	}
673
674	dev_info(&pdev->dev, "Reading VID from GPIO5\n");
675	res = superio_inb(sio: sio_data, W83627THF_GPIO5_DR) & sel;
676
677	exit:
678	superio_exit(sio: sio_data);
679	return res;
680	}
681
682	static int w83687thf_read_vid(struct platform_device *pdev)
683	{
684	struct w83627hf_sio_data *sio_data = dev_get_platdata(dev: &pdev->dev);
685	int res = 0xff;
686
687	if (superio_enter(sio: sio_data)) {
688	/*
689	* Some other driver reserved the address space for itself.
690	* We don't want to fail driver instantiation because of that,
691	* so display a warning and keep going.
692	*/
693	dev_warn(&pdev->dev,
694	"Can not read VID data: Failed to enable SuperIO access\n");
695	return res;
696	}
697
698	superio_select(sio: sio_data, W83627HF_LD_HWM);
699
700	/* Make sure these GPIO pins are enabled */
701	if (!(superio_inb(sio: sio_data, W83687THF_VID_EN) & (1 << 2))) {
702	dev_dbg(&pdev->dev, "VID disabled, no VID function\n");
703	goto exit;
704	}
705
706	/* Make sure the pins are configured for input */
707	if (!(superio_inb(sio: sio_data, W83687THF_VID_CFG) & (1 << 4))) {
708	dev_dbg(&pdev->dev, "VID configured as output, "
709	"no VID function\n");
710	goto exit;
711	}
712
713	res = superio_inb(sio: sio_data, W83687THF_VID_DATA) & 0x3f;
714
715	exit:
716	superio_exit(sio: sio_data);
717	return res;
718	}
719
720	static void w83627hf_init_device(struct platform_device *pdev)
721	{
722	struct w83627hf_data *data = platform_get_drvdata(pdev);
723	int i;
724	enum chips type = data->type;
725	u8 tmp;
726
727	/* Minimize conflicts with other winbond i2c-only clients... */
728	/* disable i2c subclients... how to disable main i2c client?? */
729	/* force i2c address to relatively uncommon address */
730	if (type == w83627hf) {
731	w83627hf_write_value(data, W83781D_REG_I2C_SUBADDR, value: 0x89);
732	w83627hf_write_value(data, W83781D_REG_I2C_ADDR, value: force_i2c);
733	}
734
735	/* Read VID only once */
736	if (type == w83627hf || type == w83637hf) {
737	int lo = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
738	int hi = w83627hf_read_value(data, W83781D_REG_CHIPID);
739	data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
740	} else if (type == w83627thf) {
741	data->vid = w83627thf_read_gpio5(pdev);
742	} else if (type == w83687thf) {
743	data->vid = w83687thf_read_vid(pdev);
744	}
745
746	/* Read VRM & OVT Config only once */
747	if (type == w83627thf || type == w83637hf || type == w83687thf) {
748	data->vrm_ovt =
749	w83627hf_read_value(data, W83627THF_REG_VRM_OVT_CFG);
750	}
751
752	tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
753	for (i = 1; i <= 3; i++) {
754	if (!(tmp & BIT_SCFG1[i - 1])) {
755	data->sens[i - 1] = 4;
756	} else {
757	if (w83627hf_read_value
758	(data,
759	W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
760	data->sens[i - 1] = 1;
761	else
762	data->sens[i - 1] = 2;
763	}
764	if ((type == w83697hf) && (i == 2))
765	break;
766	}
767
768	if(init) {
769	/* Enable temp2 */
770	tmp = w83627hf_read_value(data, W83627HF_REG_TEMP2_CONFIG);
771	if (tmp & 0x01) {
772	dev_warn(&pdev->dev, "Enabling temp2, readings "
773	"might not make sense\n");
774	w83627hf_write_value(data, W83627HF_REG_TEMP2_CONFIG,
775	value: tmp & 0xfe);
776	}
777
778	/* Enable temp3 */
779	if (type != w83697hf) {
780	tmp = w83627hf_read_value(data,
781	W83627HF_REG_TEMP3_CONFIG);
782	if (tmp & 0x01) {
783	dev_warn(&pdev->dev, "Enabling temp3, "
784	"readings might not make sense\n");
785	w83627hf_write_value(data,
786	W83627HF_REG_TEMP3_CONFIG, value: tmp & 0xfe);
787	}
788	}
789	}
790
791	/* Start monitoring */
792	w83627hf_write_value(data, W83781D_REG_CONFIG,
793	value: (w83627hf_read_value(data,
794	W83781D_REG_CONFIG) & 0xf7)
795	| 0x01);
796
797	/* Enable VBAT monitoring if needed */
798	tmp = w83627hf_read_value(data, W83781D_REG_VBAT);
799	if (!(tmp & 0x01))
800	w83627hf_write_value(data, W83781D_REG_VBAT, value: tmp | 0x01);
801	}
802
803	/* use a different set of functions for in0 */
804	static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
805	{
806	long in0;
807
808	if ((data->vrm_ovt & 0x01) &&
809	(w83627thf == data->type || w83637hf == data->type
810	|| w83687thf == data->type))
811
812	/* use VRM9 calculation */
813	in0 = (long)((reg * 488 + 70000 + 50) / 100);
814	else
815	/* use VRM8 (standard) calculation */
816	in0 = (long)IN_FROM_REG(reg);
817
818	return sprintf(buf,fmt: "%ld\n", in0);
819	}
820
821	static ssize_t in0_input_show(struct device *dev,
822	struct device_attribute *attr, char *buf)
823	{
824	struct w83627hf_data *data = w83627hf_update_device(dev);
825	return show_in_0(data, buf, reg: data->in[0]);
826	}
827	static DEVICE_ATTR_RO(in0_input);
828
829	static ssize_t in0_min_show(struct device *dev, struct device_attribute *attr,
830	char *buf)
831	{
832	struct w83627hf_data *data = w83627hf_update_device(dev);
833	return show_in_0(data, buf, reg: data->in_min[0]);
834	}
835
836	static ssize_t in0_min_store(struct device *dev,
837	struct device_attribute *attr, const char *buf,
838	size_t count)
839	{
840	struct w83627hf_data *data = dev_get_drvdata(dev);
841	unsigned long val;
842	int err;
843
844	err = kstrtoul(s: buf, base: 10, res: &val);
845	if (err)
846	return err;
847
848	mutex_lock(&data->update_lock);
849
850	if ((data->vrm_ovt & 0x01) &&
851	(w83627thf == data->type || w83637hf == data->type
852	|| w83687thf == data->type))
853
854	/* use VRM9 calculation */
855	data->in_min[0] =
856	clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);
857	else
858	/* use VRM8 (standard) calculation */
859	data->in_min[0] = IN_TO_REG(val);
860
861	w83627hf_write_value(data, W83781D_REG_IN_MIN(0), value: data->in_min[0]);
862	mutex_unlock(lock: &data->update_lock);
863	return count;
864	}
865
866	static DEVICE_ATTR_RW(in0_min);
867
868	static ssize_t in0_max_show(struct device *dev, struct device_attribute *attr,
869	char *buf)
870	{
871	struct w83627hf_data *data = w83627hf_update_device(dev);
872	return show_in_0(data, buf, reg: data->in_max[0]);
873	}
874
875	static ssize_t in0_max_store(struct device *dev,
876	struct device_attribute *attr, const char *buf,
877	size_t count)
878	{
879	struct w83627hf_data *data = dev_get_drvdata(dev);
880	unsigned long val;
881	int err;
882
883	err = kstrtoul(s: buf, base: 10, res: &val);
884	if (err)
885	return err;
886
887	mutex_lock(&data->update_lock);
888
889	if ((data->vrm_ovt & 0x01) &&
890	(w83627thf == data->type || w83637hf == data->type
891	|| w83687thf == data->type))
892
893	/* use VRM9 calculation */
894	data->in_max[0] =
895	clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);
896	else
897	/* use VRM8 (standard) calculation */
898	data->in_max[0] = IN_TO_REG(val);
899
900	w83627hf_write_value(data, W83781D_REG_IN_MAX(0), value: data->in_max[0]);
901	mutex_unlock(lock: &data->update_lock);
902	return count;
903	}
904
905	static DEVICE_ATTR_RW(in0_max);
906
907	static ssize_t
908	alarm_show(struct device *dev, struct device_attribute *attr, char *buf)
909	{
910	struct w83627hf_data *data = w83627hf_update_device(dev);
911	int bitnr = to_sensor_dev_attr(attr)->index;
912	return sprintf(buf, fmt: "%u\n", (data->alarms >> bitnr) & 1);
913	}
914
915	static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0);
916	static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1);
917	static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2);
918	static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3);
919	static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8);
920	static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 9);
921	static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 10);
922	static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 16);
923	static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 17);
924	static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6);
925	static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7);
926	static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 11);
927	static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4);
928	static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 5);
929	static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 13);
930
931	static ssize_t
932	beep_show(struct device *dev, struct device_attribute *attr, char *buf)
933	{
934	struct w83627hf_data *data = w83627hf_update_device(dev);
935	int bitnr = to_sensor_dev_attr(attr)->index;
936	return sprintf(buf, fmt: "%u\n", (data->beep_mask >> bitnr) & 1);
937	}
938
939	static ssize_t
940	beep_store(struct device *dev, struct device_attribute *attr, const char *buf,
941	size_t count)
942	{
943	struct w83627hf_data *data = dev_get_drvdata(dev);
944	int bitnr = to_sensor_dev_attr(attr)->index;
945	u8 reg;
946	unsigned long bit;
947	int err;
948
949	err = kstrtoul(s: buf, base: 10, res: &bit);
950	if (err)
951	return err;
952
953	if (bit & ~1)
954	return -EINVAL;
955
956	mutex_lock(&data->update_lock);
957	if (bit)
958	data->beep_mask |= (1 << bitnr);
959	else
960	data->beep_mask &= ~(1 << bitnr);
961
962	if (bitnr < 8) {
963	reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
964	if (bit)
965	reg |= (1 << bitnr);
966	else
967	reg &= ~(1 << bitnr);
968	w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, value: reg);
969	} else if (bitnr < 16) {
970	reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
971	if (bit)
972	reg |= (1 << (bitnr - 8));
973	else
974	reg &= ~(1 << (bitnr - 8));
975	w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, value: reg);
976	} else {
977	reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
978	if (bit)
979	reg |= (1 << (bitnr - 16));
980	else
981	reg &= ~(1 << (bitnr - 16));
982	w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, value: reg);
983	}
984	mutex_unlock(lock: &data->update_lock);
985
986	return count;
987	}
988
989	static SENSOR_DEVICE_ATTR_RW(in0_beep, beep, 0);
990	static SENSOR_DEVICE_ATTR_RW(in1_beep, beep, 1);
991	static SENSOR_DEVICE_ATTR_RW(in2_beep, beep, 2);
992	static SENSOR_DEVICE_ATTR_RW(in3_beep, beep, 3);
993	static SENSOR_DEVICE_ATTR_RW(in4_beep, beep, 8);
994	static SENSOR_DEVICE_ATTR_RW(in5_beep, beep, 9);
995	static SENSOR_DEVICE_ATTR_RW(in6_beep, beep, 10);
996	static SENSOR_DEVICE_ATTR_RW(in7_beep, beep, 16);
997	static SENSOR_DEVICE_ATTR_RW(in8_beep, beep, 17);
998	static SENSOR_DEVICE_ATTR_RW(fan1_beep, beep, 6);
999	static SENSOR_DEVICE_ATTR_RW(fan2_beep, beep, 7);
1000	static SENSOR_DEVICE_ATTR_RW(fan3_beep, beep, 11);
1001	static SENSOR_DEVICE_ATTR_RW(temp1_beep, beep, 4);
1002	static SENSOR_DEVICE_ATTR_RW(temp2_beep, beep, 5);
1003	static SENSOR_DEVICE_ATTR_RW(temp3_beep, beep, 13);
1004	static SENSOR_DEVICE_ATTR_RW(beep_enable, beep, 15);
1005
1006	static ssize_t
1007	in_input_show(struct device *dev, struct device_attribute *devattr, char *buf)
1008	{
1009	int nr = to_sensor_dev_attr(devattr)->index;
1010	struct w83627hf_data *data = w83627hf_update_device(dev);
1011	return sprintf(buf, fmt: "%ld\n", (long)IN_FROM_REG(data->in[nr]));
1012	}
1013
1014	static ssize_t
1015	in_min_show(struct device *dev, struct device_attribute *devattr, char *buf)
1016	{
1017	int nr = to_sensor_dev_attr(devattr)->index;
1018	struct w83627hf_data *data = w83627hf_update_device(dev);
1019	return sprintf(buf, fmt: "%ld\n", (long)IN_FROM_REG(data->in_min[nr]));
1020	}
1021
1022	static ssize_t
1023	in_min_store(struct device *dev, struct device_attribute *devattr,
1024	const char *buf, size_t count)
1025	{
1026	int nr = to_sensor_dev_attr(devattr)->index;
1027	struct w83627hf_data *data = dev_get_drvdata(dev);
1028	long val;
1029	int err;
1030
1031	err = kstrtol(s: buf, base: 10, res: &val);
1032	if (err)
1033	return err;
1034
1035	mutex_lock(&data->update_lock);
1036	data->in_min[nr] = IN_TO_REG(val);
1037	w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), value: data->in_min[nr]);
1038	mutex_unlock(lock: &data->update_lock);
1039	return count;
1040	}
1041
1042	static ssize_t
1043	in_max_show(struct device *dev, struct device_attribute *devattr, char *buf)
1044	{
1045	int nr = to_sensor_dev_attr(devattr)->index;
1046	struct w83627hf_data *data = w83627hf_update_device(dev);
1047	return sprintf(buf, fmt: "%ld\n", (long)IN_FROM_REG(data->in_max[nr]));
1048	}
1049
1050	static ssize_t
1051	in_max_store(struct device *dev, struct device_attribute *devattr,
1052	const char *buf, size_t count)
1053	{
1054	int nr = to_sensor_dev_attr(devattr)->index;
1055	struct w83627hf_data *data = dev_get_drvdata(dev);
1056	long val;
1057	int err;
1058
1059	err = kstrtol(s: buf, base: 10, res: &val);
1060	if (err)
1061	return err;
1062
1063	mutex_lock(&data->update_lock);
1064	data->in_max[nr] = IN_TO_REG(val);
1065	w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), value: data->in_max[nr]);
1066	mutex_unlock(lock: &data->update_lock);
1067	return count;
1068	}
1069
1070	static SENSOR_DEVICE_ATTR_RO(in1_input, in_input, 1);
1071	static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1);
1072	static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1);
1073	static SENSOR_DEVICE_ATTR_RO(in2_input, in_input, 2);
1074	static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2);
1075	static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2);
1076	static SENSOR_DEVICE_ATTR_RO(in3_input, in_input, 3);
1077	static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3);
1078	static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3);
1079	static SENSOR_DEVICE_ATTR_RO(in4_input, in_input, 4);
1080	static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4);
1081	static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4);
1082	static SENSOR_DEVICE_ATTR_RO(in5_input, in_input, 5);
1083	static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5);
1084	static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5);
1085	static SENSOR_DEVICE_ATTR_RO(in6_input, in_input, 6);
1086	static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6);
1087	static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6);
1088	static SENSOR_DEVICE_ATTR_RO(in7_input, in_input, 7);
1089	static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7);
1090	static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7);
1091	static SENSOR_DEVICE_ATTR_RO(in8_input, in_input, 8);
1092	static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8);
1093	static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8);
1094
1095	static ssize_t
1096	fan_input_show(struct device *dev, struct device_attribute *devattr,
1097	char *buf)
1098	{
1099	int nr = to_sensor_dev_attr(devattr)->index;
1100	struct w83627hf_data *data = w83627hf_update_device(dev);
1101	return sprintf(buf, fmt: "%ld\n", FAN_FROM_REG(data->fan[nr],
1102	(long)DIV_FROM_REG(data->fan_div[nr])));
1103	}
1104
1105	static ssize_t
1106	fan_min_show(struct device *dev, struct device_attribute *devattr, char *buf)
1107	{
1108	int nr = to_sensor_dev_attr(devattr)->index;
1109	struct w83627hf_data *data = w83627hf_update_device(dev);
1110	return sprintf(buf, fmt: "%ld\n", FAN_FROM_REG(data->fan_min[nr],
1111	(long)DIV_FROM_REG(data->fan_div[nr])));
1112	}
1113
1114	static ssize_t
1115	fan_min_store(struct device *dev, struct device_attribute *devattr,
1116	const char *buf, size_t count)
1117	{
1118	int nr = to_sensor_dev_attr(devattr)->index;
1119	struct w83627hf_data *data = dev_get_drvdata(dev);
1120	unsigned long val;
1121	int err;
1122
1123	err = kstrtoul(s: buf, base: 10, res: &val);
1124	if (err)
1125	return err;
1126
1127	mutex_lock(&data->update_lock);
1128	data->fan_min[nr] = FAN_TO_REG(rpm: val, DIV_FROM_REG(data->fan_div[nr]));
1129	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),
1130	value: data->fan_min[nr]);
1131
1132	mutex_unlock(lock: &data->update_lock);
1133	return count;
1134	}
1135
1136	static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0);
1137	static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
1138	static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1);
1139	static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
1140	static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2);
1141	static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);
1142
1143	static ssize_t
1144	fan_div_show(struct device *dev, struct device_attribute *devattr, char *buf)
1145	{
1146	int nr = to_sensor_dev_attr(devattr)->index;
1147	struct w83627hf_data *data = w83627hf_update_device(dev);
1148	return sprintf(buf, fmt: "%ld\n",
1149	(long) DIV_FROM_REG(data->fan_div[nr]));
1150	}
1151
1152	/*
1153	* Note: we save and restore the fan minimum here, because its value is
1154	* determined in part by the fan divisor. This follows the principle of
1155	* least surprise; the user doesn't expect the fan minimum to change just
1156	* because the divisor changed.
1157	*/
1158	static ssize_t
1159	fan_div_store(struct device *dev, struct device_attribute *devattr,
1160	const char *buf, size_t count)
1161	{
1162	int nr = to_sensor_dev_attr(devattr)->index;
1163	struct w83627hf_data *data = dev_get_drvdata(dev);
1164	unsigned long min;
1165	u8 reg;
1166	unsigned long val;
1167	int err;
1168
1169	err = kstrtoul(s: buf, base: 10, res: &val);
1170	if (err)
1171	return err;
1172
1173	mutex_lock(&data->update_lock);
1174
1175	/* Save fan_min */
1176	min = FAN_FROM_REG(data->fan_min[nr],
1177	DIV_FROM_REG(data->fan_div[nr]));
1178
1179	data->fan_div[nr] = DIV_TO_REG(val);
1180
1181	reg = (w83627hf_read_value(data, reg: nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
1182	& (nr==0 ? 0xcf : 0x3f))
1183	| ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
1184	w83627hf_write_value(data, reg: nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, value: reg);
1185
1186	reg = (w83627hf_read_value(data, W83781D_REG_VBAT)
1187	& ~(1 << (5 + nr)))
1188	| ((data->fan_div[nr] & 0x04) << (3 + nr));
1189	w83627hf_write_value(data, W83781D_REG_VBAT, value: reg);
1190
1191	/* Restore fan_min */
1192	data->fan_min[nr] = FAN_TO_REG(rpm: min, DIV_FROM_REG(data->fan_div[nr]));
1193	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), value: data->fan_min[nr]);
1194
1195	mutex_unlock(lock: &data->update_lock);
1196	return count;
1197	}
1198
1199	static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);
1200	static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);
1201	static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);
1202
1203	static ssize_t
1204	temp_show(struct device *dev, struct device_attribute *devattr, char *buf)
1205	{
1206	int nr = to_sensor_dev_attr(devattr)->index;
1207	struct w83627hf_data *data = w83627hf_update_device(dev);
1208
1209	u16 tmp = data->temp[nr];
1210	return sprintf(buf, fmt: "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(reg: tmp)
1211	: (long) TEMP_FROM_REG(reg: tmp));
1212	}
1213
1214	static ssize_t
1215	temp_max_show(struct device *dev, struct device_attribute *devattr, char *buf)
1216	{
1217	int nr = to_sensor_dev_attr(devattr)->index;
1218	struct w83627hf_data *data = w83627hf_update_device(dev);
1219
1220	u16 tmp = data->temp_max[nr];
1221	return sprintf(buf, fmt: "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(reg: tmp)
1222	: (long) TEMP_FROM_REG(reg: tmp));
1223	}
1224
1225	static ssize_t
1226	temp_max_store(struct device *dev, struct device_attribute *devattr,
1227	const char *buf, size_t count)
1228	{
1229	int nr = to_sensor_dev_attr(devattr)->index;
1230	struct w83627hf_data *data = dev_get_drvdata(dev);
1231	u16 tmp;
1232	long val;
1233	int err;
1234
1235	err = kstrtol(s: buf, base: 10, res: &val);
1236	if (err)
1237	return err;
1238
1239	tmp = (nr) ? LM75_TEMP_TO_REG(temp: val) : TEMP_TO_REG(temp: val);
1240	mutex_lock(&data->update_lock);
1241	data->temp_max[nr] = tmp;
1242	w83627hf_write_value(data, reg: w83627hf_reg_temp_over[nr], value: tmp);
1243	mutex_unlock(lock: &data->update_lock);
1244	return count;
1245	}
1246
1247	static ssize_t
1248	temp_max_hyst_show(struct device *dev, struct device_attribute *devattr,
1249	char *buf)
1250	{
1251	int nr = to_sensor_dev_attr(devattr)->index;
1252	struct w83627hf_data *data = w83627hf_update_device(dev);
1253
1254	u16 tmp = data->temp_max_hyst[nr];
1255	return sprintf(buf, fmt: "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(reg: tmp)
1256	: (long) TEMP_FROM_REG(reg: tmp));
1257	}
1258
1259	static ssize_t
1260	temp_max_hyst_store(struct device *dev, struct device_attribute *devattr,
1261	const char *buf, size_t count)
1262	{
1263	int nr = to_sensor_dev_attr(devattr)->index;
1264	struct w83627hf_data *data = dev_get_drvdata(dev);
1265	u16 tmp;
1266	long val;
1267	int err;
1268
1269	err = kstrtol(s: buf, base: 10, res: &val);
1270	if (err)
1271	return err;
1272
1273	tmp = (nr) ? LM75_TEMP_TO_REG(temp: val) : TEMP_TO_REG(temp: val);
1274	mutex_lock(&data->update_lock);
1275	data->temp_max_hyst[nr] = tmp;
1276	w83627hf_write_value(data, reg: w83627hf_reg_temp_hyst[nr], value: tmp);
1277	mutex_unlock(lock: &data->update_lock);
1278	return count;
1279	}
1280
1281	static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
1282	static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
1283	static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, temp_max_hyst, 0);
1284	static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
1285	static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
1286	static SENSOR_DEVICE_ATTR_RW(temp2_max_hyst, temp_max_hyst, 1);
1287	static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);
1288	static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);
1289	static SENSOR_DEVICE_ATTR_RW(temp3_max_hyst, temp_max_hyst, 2);
1290
1291	static ssize_t
1292	temp_type_show(struct device *dev, struct device_attribute *devattr,
1293	char *buf)
1294	{
1295	int nr = to_sensor_dev_attr(devattr)->index;
1296	struct w83627hf_data *data = w83627hf_update_device(dev);
1297	return sprintf(buf, fmt: "%ld\n", (long) data->sens[nr]);
1298	}
1299
1300	static ssize_t
1301	temp_type_store(struct device *dev, struct device_attribute *devattr,
1302	const char *buf, size_t count)
1303	{
1304	int nr = to_sensor_dev_attr(devattr)->index;
1305	struct w83627hf_data *data = dev_get_drvdata(dev);
1306	unsigned long val;
1307	u32 tmp;
1308	int err;
1309
1310	err = kstrtoul(s: buf, base: 10, res: &val);
1311	if (err)
1312	return err;
1313
1314	mutex_lock(&data->update_lock);
1315
1316	switch (val) {
1317	case 1: /* PII/Celeron diode */
1318	tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1319	w83627hf_write_value(data, W83781D_REG_SCFG1,
1320	value: tmp | BIT_SCFG1[nr]);
1321	tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
1322	w83627hf_write_value(data, W83781D_REG_SCFG2,
1323	value: tmp | BIT_SCFG2[nr]);
1324	data->sens[nr] = val;
1325	break;
1326	case 2: /* 3904 */
1327	tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1328	w83627hf_write_value(data, W83781D_REG_SCFG1,
1329	value: tmp | BIT_SCFG1[nr]);
1330	tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
1331	w83627hf_write_value(data, W83781D_REG_SCFG2,
1332	value: tmp & ~BIT_SCFG2[nr]);
1333	data->sens[nr] = val;
1334	break;
1335	case W83781D_DEFAULT_BETA:
1336	dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
1337	"instead\n", W83781D_DEFAULT_BETA);
1338	fallthrough;
1339	case 4: /* thermistor */
1340	tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1341	w83627hf_write_value(data, W83781D_REG_SCFG1,
1342	value: tmp & ~BIT_SCFG1[nr]);
1343	data->sens[nr] = val;
1344	break;
1345	default:
1346	dev_err(dev,
1347	"Invalid sensor type %ld; must be 1, 2, or 4\n",
1348	(long) val);
1349	break;
1350	}
1351
1352	mutex_unlock(lock: &data->update_lock);
1353	return count;
1354	}
1355
1356	static SENSOR_DEVICE_ATTR_RW(temp1_type, temp_type, 0);
1357	static SENSOR_DEVICE_ATTR_RW(temp2_type, temp_type, 1);
1358	static SENSOR_DEVICE_ATTR_RW(temp3_type, temp_type, 2);
1359
1360	static ssize_t
1361	alarms_show(struct device *dev, struct device_attribute *attr, char *buf)
1362	{
1363	struct w83627hf_data *data = w83627hf_update_device(dev);
1364	return sprintf(buf, fmt: "%ld\n", (long) data->alarms);
1365	}
1366	static DEVICE_ATTR_RO(alarms);
1367
1368	#define VIN_UNIT_ATTRS(_X_) \
1369	&sensor_dev_attr_in##_X_##_input.dev_attr.attr, \
1370	&sensor_dev_attr_in##_X_##_min.dev_attr.attr, \
1371	&sensor_dev_attr_in##_X_##_max.dev_attr.attr, \
1372	&sensor_dev_attr_in##_X_##_alarm.dev_attr.attr, \
1373	&sensor_dev_attr_in##_X_##_beep.dev_attr.attr
1374
1375	#define FAN_UNIT_ATTRS(_X_) \
1376	&sensor_dev_attr_fan##_X_##_input.dev_attr.attr, \
1377	&sensor_dev_attr_fan##_X_##_min.dev_attr.attr, \
1378	&sensor_dev_attr_fan##_X_##_div.dev_attr.attr, \
1379	&sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr, \
1380	&sensor_dev_attr_fan##_X_##_beep.dev_attr.attr
1381
1382	#define TEMP_UNIT_ATTRS(_X_) \
1383	&sensor_dev_attr_temp##_X_##_input.dev_attr.attr, \
1384	&sensor_dev_attr_temp##_X_##_max.dev_attr.attr, \
1385	&sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr, \
1386	&sensor_dev_attr_temp##_X_##_type.dev_attr.attr, \
1387	&sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr, \
1388	&sensor_dev_attr_temp##_X_##_beep.dev_attr.attr
1389
1390	static ssize_t
1391	beep_mask_show(struct device *dev, struct device_attribute *attr, char *buf)
1392	{
1393	struct w83627hf_data *data = w83627hf_update_device(dev);
1394	return sprintf(buf, fmt: "%ld\n",
1395	(long)BEEP_MASK_FROM_REG(data->beep_mask));
1396	}
1397
1398	static ssize_t
1399	beep_mask_store(struct device *dev, struct device_attribute *attr,
1400	const char *buf, size_t count)
1401	{
1402	struct w83627hf_data *data = dev_get_drvdata(dev);
1403	unsigned long val;
1404	int err;
1405
1406	err = kstrtoul(s: buf, base: 10, res: &val);
1407	if (err)
1408	return err;
1409
1410	mutex_lock(&data->update_lock);
1411
1412	/* preserve beep enable */
1413	data->beep_mask = (data->beep_mask & 0x8000)
1414	| BEEP_MASK_TO_REG(val);
1415	w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
1416	value: data->beep_mask & 0xff);
1417	w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
1418	value: ((data->beep_mask) >> 16) & 0xff);
1419	w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,
1420	value: (data->beep_mask >> 8) & 0xff);
1421
1422	mutex_unlock(lock: &data->update_lock);
1423	return count;
1424	}
1425
1426	static DEVICE_ATTR_RW(beep_mask);
1427
1428	static ssize_t
1429	pwm_show(struct device *dev, struct device_attribute *devattr, char *buf)
1430	{
1431	int nr = to_sensor_dev_attr(devattr)->index;
1432	struct w83627hf_data *data = w83627hf_update_device(dev);
1433	return sprintf(buf, fmt: "%ld\n", (long) data->pwm[nr]);
1434	}
1435
1436	static ssize_t
1437	pwm_store(struct device *dev, struct device_attribute *devattr,
1438	const char *buf, size_t count)
1439	{
1440	int nr = to_sensor_dev_attr(devattr)->index;
1441	struct w83627hf_data *data = dev_get_drvdata(dev);
1442	unsigned long val;
1443	int err;
1444
1445	err = kstrtoul(s: buf, base: 10, res: &val);
1446	if (err)
1447	return err;
1448
1449	mutex_lock(&data->update_lock);
1450
1451	if (data->type == w83627thf) {
1452	/* bits 0-3 are reserved in 627THF */
1453	data->pwm[nr] = PWM_TO_REG(val) & 0xf0;
1454	w83627hf_write_value(data,
1455	W836X7HF_REG_PWM(data->type, nr),
1456	value: data->pwm[nr] |
1457	(w83627hf_read_value(data,
1458	W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
1459	} else {
1460	data->pwm[nr] = PWM_TO_REG(val);
1461	w83627hf_write_value(data,
1462	W836X7HF_REG_PWM(data->type, nr),
1463	value: data->pwm[nr]);
1464	}
1465
1466	mutex_unlock(lock: &data->update_lock);
1467	return count;
1468	}
1469
1470	static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);
1471	static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1);
1472	static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2);
1473
1474	static ssize_t
1475	name_show(struct device *dev, struct device_attribute *devattr, char *buf)
1476	{
1477	struct w83627hf_data *data = dev_get_drvdata(dev);
1478
1479	return sprintf(buf, fmt: "%s\n", data->name);
1480	}
1481
1482	static DEVICE_ATTR_RO(name);
1483
1484	static struct attribute *w83627hf_attributes[] = {
1485	&dev_attr_in0_input.attr,
1486	&dev_attr_in0_min.attr,
1487	&dev_attr_in0_max.attr,
1488	&sensor_dev_attr_in0_alarm.dev_attr.attr,
1489	&sensor_dev_attr_in0_beep.dev_attr.attr,
1490	VIN_UNIT_ATTRS(2),
1491	VIN_UNIT_ATTRS(3),
1492	VIN_UNIT_ATTRS(4),
1493	VIN_UNIT_ATTRS(7),
1494	VIN_UNIT_ATTRS(8),
1495
1496	FAN_UNIT_ATTRS(1),
1497	FAN_UNIT_ATTRS(2),
1498
1499	TEMP_UNIT_ATTRS(1),
1500	TEMP_UNIT_ATTRS(2),
1501
1502	&dev_attr_alarms.attr,
1503	&sensor_dev_attr_beep_enable.dev_attr.attr,
1504	&dev_attr_beep_mask.attr,
1505
1506	&sensor_dev_attr_pwm1.dev_attr.attr,
1507	&sensor_dev_attr_pwm2.dev_attr.attr,
1508	&dev_attr_name.attr,
1509	NULL
1510	};
1511
1512	static const struct attribute_group w83627hf_group = {
1513	.attrs = w83627hf_attributes,
1514	};
1515
1516	static ssize_t
1517	pwm_freq_show(struct device *dev, struct device_attribute *devattr, char *buf)
1518	{
1519	int nr = to_sensor_dev_attr(devattr)->index;
1520	struct w83627hf_data *data = w83627hf_update_device(dev);
1521	if (data->type == w83627hf)
1522	return sprintf(buf, fmt: "%ld\n",
1523	pwm_freq_from_reg_627hf(reg: data->pwm_freq[nr]));
1524	else
1525	return sprintf(buf, fmt: "%ld\n",
1526	pwm_freq_from_reg(reg: data->pwm_freq[nr]));
1527	}
1528
1529	static ssize_t
1530	pwm_freq_store(struct device *dev, struct device_attribute *devattr,
1531	const char *buf, size_t count)
1532	{
1533	int nr = to_sensor_dev_attr(devattr)->index;
1534	struct w83627hf_data *data = dev_get_drvdata(dev);
1535	static const u8 mask[]={0xF8, 0x8F};
1536	unsigned long val;
1537	int err;
1538
1539	err = kstrtoul(s: buf, base: 10, res: &val);
1540	if (err)
1541	return err;
1542
1543	mutex_lock(&data->update_lock);
1544
1545	if (data->type == w83627hf) {
1546	data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);
1547	w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,
1548	value: (data->pwm_freq[nr] << (nr*4)) |
1549	(w83627hf_read_value(data,
1550	W83627HF_REG_PWM_FREQ) & mask[nr]));
1551	} else {
1552	data->pwm_freq[nr] = pwm_freq_to_reg(val);
1553	w83627hf_write_value(data, reg: W83637HF_REG_PWM_FREQ[nr],
1554	value: data->pwm_freq[nr]);
1555	}
1556
1557	mutex_unlock(lock: &data->update_lock);
1558	return count;
1559	}
1560
1561	static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0);
1562	static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1);
1563	static SENSOR_DEVICE_ATTR_RW(pwm3_freq, pwm_freq, 2);
1564
1565	static ssize_t
1566	cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)
1567	{
1568	struct w83627hf_data *data = w83627hf_update_device(dev);
1569	return sprintf(buf, fmt: "%ld\n", (long) vid_from_reg(val: data->vid, vrm: data->vrm));
1570	}
1571
1572	static DEVICE_ATTR_RO(cpu0_vid);
1573
1574	static ssize_t
1575	vrm_show(struct device *dev, struct device_attribute *attr, char *buf)
1576	{
1577	struct w83627hf_data *data = dev_get_drvdata(dev);
1578	return sprintf(buf, fmt: "%ld\n", (long) data->vrm);
1579	}
1580
1581	static ssize_t
1582	vrm_store(struct device *dev, struct device_attribute *attr, const char *buf,
1583	size_t count)
1584	{
1585	struct w83627hf_data *data = dev_get_drvdata(dev);
1586	unsigned long val;
1587	int err;
1588
1589	err = kstrtoul(s: buf, base: 10, res: &val);
1590	if (err)
1591	return err;
1592
1593	if (val > 255)
1594	return -EINVAL;
1595	data->vrm = val;
1596
1597	return count;
1598	}
1599
1600	static DEVICE_ATTR_RW(vrm);
1601
1602	static ssize_t
1603	pwm_enable_show(struct device *dev, struct device_attribute *devattr,
1604	char *buf)
1605	{
1606	int nr = to_sensor_dev_attr(devattr)->index;
1607	struct w83627hf_data *data = w83627hf_update_device(dev);
1608	return sprintf(buf, fmt: "%d\n", data->pwm_enable[nr]);
1609	}
1610
1611	static ssize_t
1612	pwm_enable_store(struct device *dev, struct device_attribute *devattr,
1613	const char *buf, size_t count)
1614	{
1615	int nr = to_sensor_dev_attr(devattr)->index;
1616	struct w83627hf_data *data = dev_get_drvdata(dev);
1617	u8 reg;
1618	unsigned long val;
1619	int err;
1620
1621	err = kstrtoul(s: buf, base: 10, res: &val);
1622	if (err)
1623	return err;
1624
1625	if (!val || val > 3) /* modes 1, 2 and 3 are supported */
1626	return -EINVAL;
1627	mutex_lock(&data->update_lock);
1628	data->pwm_enable[nr] = val;
1629	reg = w83627hf_read_value(data, reg: W83627THF_REG_PWM_ENABLE[nr]);
1630	reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
1631	reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
1632	w83627hf_write_value(data, reg: W83627THF_REG_PWM_ENABLE[nr], value: reg);
1633	mutex_unlock(lock: &data->update_lock);
1634	return count;
1635	}
1636
1637	static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0);
1638	static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1);
1639	static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_enable, 2);
1640
1641	static struct attribute *w83627hf_attributes_opt[] = {
1642	VIN_UNIT_ATTRS(1),
1643	VIN_UNIT_ATTRS(5),
1644	VIN_UNIT_ATTRS(6),
1645
1646	FAN_UNIT_ATTRS(3),
1647	TEMP_UNIT_ATTRS(3),
1648	&sensor_dev_attr_pwm3.dev_attr.attr,
1649
1650	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
1651	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
1652	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
1653
1654	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
1655	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
1656	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
1657
1658	NULL
1659	};
1660
1661	static const struct attribute_group w83627hf_group_opt = {
1662	.attrs = w83627hf_attributes_opt,
1663	};
1664
1665	static int w83627hf_probe(struct platform_device *pdev)
1666	{
1667	struct device *dev = &pdev->dev;
1668	struct w83627hf_sio_data *sio_data = dev_get_platdata(dev);
1669	struct w83627hf_data *data;
1670	struct resource *res;
1671	int err, i;
1672
1673	static const char *names[] = {
1674	"w83627hf",
1675	"w83627thf",
1676	"w83697hf",
1677	"w83637hf",
1678	"w83687thf",
1679	};
1680
1681	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1682	if (!devm_request_region(dev, res->start, WINB_REGION_SIZE, DRVNAME)) {
1683	dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
1684	(unsigned long)res->start,
1685	(unsigned long)(res->start + WINB_REGION_SIZE - 1));
1686	return -EBUSY;
1687	}
1688
1689	data = devm_kzalloc(dev, size: sizeof(struct w83627hf_data), GFP_KERNEL);
1690	if (!data)
1691	return -ENOMEM;
1692
1693	data->addr = res->start;
1694	data->type = sio_data->type;
1695	data->name = names[sio_data->type];
1696	mutex_init(&data->lock);
1697	mutex_init(&data->update_lock);
1698	platform_set_drvdata(pdev, data);
1699
1700	/* Initialize the chip */
1701	w83627hf_init_device(pdev);
1702
1703	/* A few vars need to be filled upon startup */
1704	for (i = 0; i <= 2; i++)
1705	data->fan_min[i] = w83627hf_read_value(
1706	data, W83627HF_REG_FAN_MIN(i));
1707	w83627hf_update_fan_div(data);
1708
1709	/* Register common device attributes */
1710	err = sysfs_create_group(kobj: &dev->kobj, grp: &w83627hf_group);
1711	if (err)
1712	return err;
1713
1714	/* Register chip-specific device attributes */
1715	if (data->type == w83627hf || data->type == w83697hf)
1716	if ((err = device_create_file(device: dev,
1717	entry: &sensor_dev_attr_in5_input.dev_attr))
1718	|| (err = device_create_file(device: dev,
1719	entry: &sensor_dev_attr_in5_min.dev_attr))
1720	|| (err = device_create_file(device: dev,
1721	entry: &sensor_dev_attr_in5_max.dev_attr))
1722	|| (err = device_create_file(device: dev,
1723	entry: &sensor_dev_attr_in5_alarm.dev_attr))
1724	|| (err = device_create_file(device: dev,
1725	entry: &sensor_dev_attr_in5_beep.dev_attr))
1726	|| (err = device_create_file(device: dev,
1727	entry: &sensor_dev_attr_in6_input.dev_attr))
1728	|| (err = device_create_file(device: dev,
1729	entry: &sensor_dev_attr_in6_min.dev_attr))
1730	|| (err = device_create_file(device: dev,
1731	entry: &sensor_dev_attr_in6_max.dev_attr))
1732	|| (err = device_create_file(device: dev,
1733	entry: &sensor_dev_attr_in6_alarm.dev_attr))
1734	|| (err = device_create_file(device: dev,
1735	entry: &sensor_dev_attr_in6_beep.dev_attr))
1736	|| (err = device_create_file(device: dev,
1737	entry: &sensor_dev_attr_pwm1_freq.dev_attr))
1738	|| (err = device_create_file(device: dev,
1739	entry: &sensor_dev_attr_pwm2_freq.dev_attr)))
1740	goto error;
1741
1742	if (data->type != w83697hf)
1743	if ((err = device_create_file(device: dev,
1744	entry: &sensor_dev_attr_in1_input.dev_attr))
1745	|| (err = device_create_file(device: dev,
1746	entry: &sensor_dev_attr_in1_min.dev_attr))
1747	|| (err = device_create_file(device: dev,
1748	entry: &sensor_dev_attr_in1_max.dev_attr))
1749	|| (err = device_create_file(device: dev,
1750	entry: &sensor_dev_attr_in1_alarm.dev_attr))
1751	|| (err = device_create_file(device: dev,
1752	entry: &sensor_dev_attr_in1_beep.dev_attr))
1753	|| (err = device_create_file(device: dev,
1754	entry: &sensor_dev_attr_fan3_input.dev_attr))
1755	|| (err = device_create_file(device: dev,
1756	entry: &sensor_dev_attr_fan3_min.dev_attr))
1757	|| (err = device_create_file(device: dev,
1758	entry: &sensor_dev_attr_fan3_div.dev_attr))
1759	|| (err = device_create_file(device: dev,
1760	entry: &sensor_dev_attr_fan3_alarm.dev_attr))
1761	|| (err = device_create_file(device: dev,
1762	entry: &sensor_dev_attr_fan3_beep.dev_attr))
1763	|| (err = device_create_file(device: dev,
1764	entry: &sensor_dev_attr_temp3_input.dev_attr))
1765	|| (err = device_create_file(device: dev,
1766	entry: &sensor_dev_attr_temp3_max.dev_attr))
1767	|| (err = device_create_file(device: dev,
1768	entry: &sensor_dev_attr_temp3_max_hyst.dev_attr))
1769	|| (err = device_create_file(device: dev,
1770	entry: &sensor_dev_attr_temp3_alarm.dev_attr))
1771	|| (err = device_create_file(device: dev,
1772	entry: &sensor_dev_attr_temp3_beep.dev_attr))
1773	|| (err = device_create_file(device: dev,
1774	entry: &sensor_dev_attr_temp3_type.dev_attr)))
1775	goto error;
1776
1777	if (data->type != w83697hf && data->vid != 0xff) {
1778	/* Convert VID to voltage based on VRM */
1779	data->vrm = vid_which_vrm();
1780
1781	if ((err = device_create_file(device: dev, entry: &dev_attr_cpu0_vid))
1782	|| (err = device_create_file(device: dev, entry: &dev_attr_vrm)))
1783	goto error;
1784	}
1785
1786	if (data->type == w83627thf || data->type == w83637hf
1787	|| data->type == w83687thf) {
1788	err = device_create_file(device: dev, entry: &sensor_dev_attr_pwm3.dev_attr);
1789	if (err)
1790	goto error;
1791	}
1792
1793	if (data->type == w83637hf || data->type == w83687thf)
1794	if ((err = device_create_file(device: dev,
1795	entry: &sensor_dev_attr_pwm1_freq.dev_attr))
1796	|| (err = device_create_file(device: dev,
1797	entry: &sensor_dev_attr_pwm2_freq.dev_attr))
1798	|| (err = device_create_file(device: dev,
1799	entry: &sensor_dev_attr_pwm3_freq.dev_attr)))
1800	goto error;
1801
1802	if (data->type != w83627hf)
1803	if ((err = device_create_file(device: dev,
1804	entry: &sensor_dev_attr_pwm1_enable.dev_attr))
1805	|| (err = device_create_file(device: dev,
1806	entry: &sensor_dev_attr_pwm2_enable.dev_attr)))
1807	goto error;
1808
1809	if (data->type == w83627thf || data->type == w83637hf
1810	|| data->type == w83687thf) {
1811	err = device_create_file(device: dev,
1812	entry: &sensor_dev_attr_pwm3_enable.dev_attr);
1813	if (err)
1814	goto error;
1815	}
1816
1817	data->hwmon_dev = hwmon_device_register(dev);
1818	if (IS_ERR(ptr: data->hwmon_dev)) {
1819	err = PTR_ERR(ptr: data->hwmon_dev);
1820	goto error;
1821	}
1822
1823	return 0;
1824
1825	error:
1826	sysfs_remove_group(kobj: &dev->kobj, grp: &w83627hf_group);
1827	sysfs_remove_group(kobj: &dev->kobj, grp: &w83627hf_group_opt);
1828	return err;
1829	}
1830
1831	static void w83627hf_remove(struct platform_device *pdev)
1832	{
1833	struct w83627hf_data *data = platform_get_drvdata(pdev);
1834
1835	hwmon_device_unregister(dev: data->hwmon_dev);
1836
1837	sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &w83627hf_group);
1838	sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &w83627hf_group_opt);
1839	}
1840
1841	static struct platform_driver w83627hf_driver = {
1842	.driver = {
1843	.name = DRVNAME,
1844	.pm = W83627HF_DEV_PM_OPS,
1845	},
1846	.probe = w83627hf_probe,
1847	.remove_new = w83627hf_remove,
1848	};
1849
1850	static int __init w83627hf_find(int sioaddr, unsigned short *addr,
1851	struct w83627hf_sio_data *sio_data)
1852	{
1853	int err;
1854	u16 val;
1855
1856	static __initconst char *const names[] = {
1857	"W83627HF",
1858	"W83627THF",
1859	"W83697HF",
1860	"W83637HF",
1861	"W83687THF",
1862	};
1863
1864	sio_data->sioaddr = sioaddr;
1865	err = superio_enter(sio: sio_data);
1866	if (err)
1867	return err;
1868
1869	err = -ENODEV;
1870	val = force_id ? force_id : superio_inb(sio: sio_data, DEVID);
1871	switch (val) {
1872	case W627_DEVID:
1873	sio_data->type = w83627hf;
1874	break;
1875	case W627THF_DEVID:
1876	sio_data->type = w83627thf;
1877	break;
1878	case W697_DEVID:
1879	sio_data->type = w83697hf;
1880	break;
1881	case W637_DEVID:
1882	sio_data->type = w83637hf;
1883	break;
1884	case W687THF_DEVID:
1885	sio_data->type = w83687thf;
1886	break;
1887	case 0xff: /* No device at all */
1888	goto exit;
1889	default:
1890	pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
1891	goto exit;
1892	}
1893
1894	superio_select(sio: sio_data, W83627HF_LD_HWM);
1895	val = (superio_inb(sio: sio_data, WINB_BASE_REG) << 8) |
1896	superio_inb(sio: sio_data, WINB_BASE_REG + 1);
1897	*addr = val & WINB_ALIGNMENT;
1898	if (*addr == 0) {
1899	pr_warn("Base address not set, skipping\n");
1900	goto exit;
1901	}
1902
1903	val = superio_inb(sio: sio_data, WINB_ACT_REG);
1904	if (!(val & 0x01)) {
1905	pr_warn("Enabling HWM logical device\n");
1906	superio_outb(sio: sio_data, WINB_ACT_REG, val: val | 0x01);
1907	}
1908
1909	err = 0;
1910	pr_info(DRVNAME ": Found %s chip at %#x\n",
1911	names[sio_data->type], *addr);
1912
1913	exit:
1914	superio_exit(sio: sio_data);
1915	return err;
1916	}
1917
1918	static int __init w83627hf_device_add(unsigned short address,
1919	const struct w83627hf_sio_data *sio_data)
1920	{
1921	struct resource res = {
1922	.start = address + WINB_REGION_OFFSET,
1923	.end = address + WINB_REGION_OFFSET + WINB_REGION_SIZE - 1,
1924	.name = DRVNAME,
1925	.flags = IORESOURCE_IO,
1926	};
1927	int err;
1928
1929	err = acpi_check_resource_conflict(res: &res);
1930	if (err)
1931	goto exit;
1932
1933	pdev = platform_device_alloc(DRVNAME, id: address);
1934	if (!pdev) {
1935	err = -ENOMEM;
1936	pr_err("Device allocation failed\n");
1937	goto exit;
1938	}
1939
1940	err = platform_device_add_resources(pdev, res: &res, num: 1);
1941	if (err) {
1942	pr_err("Device resource addition failed (%d)\n", err);
1943	goto exit_device_put;
1944	}
1945
1946	err = platform_device_add_data(pdev, data: sio_data,
1947	size: sizeof(struct w83627hf_sio_data));
1948	if (err) {
1949	pr_err("Platform data allocation failed\n");
1950	goto exit_device_put;
1951	}
1952
1953	err = platform_device_add(pdev);
1954	if (err) {
1955	pr_err("Device addition failed (%d)\n", err);
1956	goto exit_device_put;
1957	}
1958
1959	return 0;
1960
1961	exit_device_put:
1962	platform_device_put(pdev);
1963	exit:
1964	return err;
1965	}
1966
1967	static int __init sensors_w83627hf_init(void)
1968	{
1969	int err;
1970	unsigned short address;
1971	struct w83627hf_sio_data sio_data;
1972
1973	if (w83627hf_find(sioaddr: 0x2e, addr: &address, sio_data: &sio_data)
1974	&& w83627hf_find(sioaddr: 0x4e, addr: &address, sio_data: &sio_data))
1975	return -ENODEV;
1976
1977	err = platform_driver_register(&w83627hf_driver);
1978	if (err)
1979	goto exit;
1980
1981	/* Sets global pdev as a side effect */
1982	err = w83627hf_device_add(address, sio_data: &sio_data);
1983	if (err)
1984	goto exit_driver;
1985
1986	return 0;
1987
1988	exit_driver:
1989	platform_driver_unregister(&w83627hf_driver);
1990	exit:
1991	return err;
1992	}
1993
1994	static void __exit sensors_w83627hf_exit(void)
1995	{
1996	platform_device_unregister(pdev);
1997	platform_driver_unregister(&w83627hf_driver);
1998	}
1999
2000	MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
2001	"Philip Edelbrock <phil@netroedge.com>, "
2002	"and Mark Studebaker <mdsxyz123@yahoo.com>");
2003	MODULE_DESCRIPTION("W83627HF driver");
2004	MODULE_LICENSE("GPL");
2005
2006	module_init(sensors_w83627hf_init);
2007	module_exit(sensors_w83627hf_exit);
2008