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2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/drivers/hwmon/lm75.c
....@@ -1,21 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * lm75.c - Part of lm_sensors, Linux kernel modules for hardware
34  *	 monitoring
45  * Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
5
- *
6
- * This program is free software; you can redistribute it and/or modify
7
- * it under the terms of the GNU General Public License as published by
8
- * the Free Software Foundation; either version 2 of the License, or
9
- * (at your option) any later version.
10
- *
11
- * This program is distributed in the hope that it will be useful,
12
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
- * GNU General Public License for more details.
15
- *
16
- * You should have received a copy of the GNU General Public License
17
- * along with this program; if not, write to the Free Software
18
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
196  */
207 
218 #include <linux/module.h>
....@@ -29,8 +16,9 @@
2916 #include <linux/of_device.h>
3017 #include <linux/of.h>
3118 #include <linux/regmap.h>
19
+#include <linux/util_macros.h>
20
+#include <linux/regulator/consumer.h>
3221 #include "lm75.h"
33
-
3422 
3523 /*
3624  * This driver handles the LM75 and compatible digital temperature sensors.
....@@ -47,8 +35,11 @@
4735 	lm75b,
4836 	max6625,
4937 	max6626,
38
+	max31725,
5039 	mcp980x,
40
+	pct2075,
5141 	stds75,
42
+	stlm75,
5243 	tcn75,
5344 	tmp100,
5445 	tmp101,
....@@ -57,35 +48,278 @@
5748 	tmp175,
5849 	tmp275,
5950 	tmp75,
51
+	tmp75b,
6052 	tmp75c,
53
+};
54
+
55
+/**
56
+ * struct lm75_params - lm75 configuration parameters.
57
+ * @set_mask:		Bits to set in configuration register when configuring
58
+ *			the chip.
59
+ * @clr_mask:		Bits to clear in configuration register when configuring
60
+ *			the chip.
61
+ * @default_resolution:	Default number of bits to represent the temperature
62
+ *			value.
63
+ * @resolution_limits:	Limit register resolution. Optional. Should be set if
64
+ *			the resolution of limit registers does not match the
65
+ *			resolution of the temperature register.
66
+ * @resolutions:	List of resolutions associated with sample times.
67
+ *			Optional. Should be set if num_sample_times is larger
68
+ *			than 1, and if the resolution changes with sample times.
69
+ *			If set, number of entries must match num_sample_times.
70
+ * @default_sample_time:Sample time to be set by default.
71
+ * @num_sample_times:	Number of possible sample times to be set. Optional.
72
+ *			Should be set if the number of sample times is larger
73
+ *			than one.
74
+ * @sample_times:	All the possible sample times to be set. Mandatory if
75
+ *			num_sample_times is larger than 1. If set, number of
76
+ *			entries must match num_sample_times.
77
+ */
78
+
79
+struct lm75_params {
80
+	u8			set_mask;
81
+	u8			clr_mask;
82
+	u8			default_resolution;
83
+	u8			resolution_limits;
84
+	const u8		*resolutions;
85
+	unsigned int		default_sample_time;
86
+	u8			num_sample_times;
87
+	const unsigned int	*sample_times;
6188 };
6289 
6390 /* Addresses scanned */
6491 static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
6592 					0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
6693 
67
-
6894 /* The LM75 registers */
6995 #define LM75_REG_TEMP		0x00
7096 #define LM75_REG_CONF		0x01
7197 #define LM75_REG_HYST		0x02
7298 #define LM75_REG_MAX		0x03
99
+#define PCT2075_REG_IDLE	0x04
73100 
74101 /* Each client has this additional data */
75102 struct lm75_data {
76
-	struct i2c_client	*client;
77
-	struct regmap		*regmap;
78
-	u8			orig_conf;
79
-	u8			resolution;	/* In bits, between 9 and 12 */
80
-	u8			resolution_limits;
81
-	unsigned int		sample_time;	/* In ms */
103
+	struct i2c_client		*client;
104
+	struct regmap			*regmap;
105
+	struct regulator		*vs;
106
+	u8				orig_conf;
107
+	u8				current_conf;
108
+	u8				resolution;	/* In bits, 9 to 16 */
109
+	unsigned int			sample_time;	/* In ms */
110
+	enum lm75_type			kind;
111
+	const struct lm75_params	*params;
82112 };
83113 
84114 /*-----------------------------------------------------------------------*/
85115 
116
+static const u8 lm75_sample_set_masks[] = { 0 << 5, 1 << 5, 2 << 5, 3 << 5 };
117
+
118
+#define LM75_SAMPLE_CLEAR_MASK	(3 << 5)
119
+
120
+/* The structure below stores the configuration values of the supported devices.
121
+ * In case of being supported multiple configurations, the default one must
122
+ * always be the first element of the array
123
+ */
124
+static const struct lm75_params device_params[] = {
125
+	[adt75] = {
126
+		.clr_mask = 1 << 5,	/* not one-shot mode */
127
+		.default_resolution = 12,
128
+		.default_sample_time = MSEC_PER_SEC / 10,
129
+	},
130
+	[ds1775] = {
131
+		.clr_mask = 3 << 5,
132
+		.set_mask = 2 << 5,	/* 11-bit mode */
133
+		.default_resolution = 11,
134
+		.default_sample_time = 500,
135
+		.num_sample_times = 4,
136
+		.sample_times = (unsigned int []){ 125, 250, 500, 1000 },
137
+		.resolutions = (u8 []) {9, 10, 11, 12 },
138
+	},
139
+	[ds75] = {
140
+		.clr_mask = 3 << 5,
141
+		.set_mask = 2 << 5,	/* 11-bit mode */
142
+		.default_resolution = 11,
143
+		.default_sample_time = 600,
144
+		.num_sample_times = 4,
145
+		.sample_times = (unsigned int []){ 150, 300, 600, 1200 },
146
+		.resolutions = (u8 []) {9, 10, 11, 12 },
147
+	},
148
+	[stds75] = {
149
+		.clr_mask = 3 << 5,
150
+		.set_mask = 2 << 5,	/* 11-bit mode */
151
+		.default_resolution = 11,
152
+		.default_sample_time = 600,
153
+		.num_sample_times = 4,
154
+		.sample_times = (unsigned int []){ 150, 300, 600, 1200 },
155
+		.resolutions = (u8 []) {9, 10, 11, 12 },
156
+	},
157
+	[stlm75] = {
158
+		.default_resolution = 9,
159
+		.default_sample_time = MSEC_PER_SEC / 6,
160
+	},
161
+	[ds7505] = {
162
+		.set_mask = 3 << 5,	/* 12-bit mode*/
163
+		.default_resolution = 12,
164
+		.default_sample_time = 200,
165
+		.num_sample_times = 4,
166
+		.sample_times = (unsigned int []){ 25, 50, 100, 200 },
167
+		.resolutions = (u8 []) {9, 10, 11, 12 },
168
+	},
169
+	[g751] = {
170
+		.default_resolution = 9,
171
+		.default_sample_time = MSEC_PER_SEC / 10,
172
+	},
173
+	[lm75] = {
174
+		.default_resolution = 9,
175
+		.default_sample_time = MSEC_PER_SEC / 10,
176
+	},
177
+	[lm75a] = {
178
+		.default_resolution = 9,
179
+		.default_sample_time = MSEC_PER_SEC / 10,
180
+	},
181
+	[lm75b] = {
182
+		.default_resolution = 11,
183
+		.default_sample_time = MSEC_PER_SEC / 10,
184
+	},
185
+	[max6625] = {
186
+		.default_resolution = 9,
187
+		.default_sample_time = MSEC_PER_SEC / 7,
188
+	},
189
+	[max6626] = {
190
+		.default_resolution = 12,
191
+		.default_sample_time = MSEC_PER_SEC / 7,
192
+		.resolution_limits = 9,
193
+	},
194
+	[max31725] = {
195
+		.default_resolution = 16,
196
+		.default_sample_time = MSEC_PER_SEC / 20,
197
+	},
198
+	[tcn75] = {
199
+		.default_resolution = 9,
200
+		.default_sample_time = MSEC_PER_SEC / 18,
201
+	},
202
+	[pct2075] = {
203
+		.default_resolution = 11,
204
+		.default_sample_time = MSEC_PER_SEC / 10,
205
+		.num_sample_times = 31,
206
+		.sample_times = (unsigned int []){ 100, 200, 300, 400, 500, 600,
207
+		700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700,
208
+		1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700,
209
+		2800, 2900, 3000, 3100 },
210
+	},
211
+	[mcp980x] = {
212
+		.set_mask = 3 << 5,	/* 12-bit mode */
213
+		.clr_mask = 1 << 7,	/* not one-shot mode */
214
+		.default_resolution = 12,
215
+		.resolution_limits = 9,
216
+		.default_sample_time = 240,
217
+		.num_sample_times = 4,
218
+		.sample_times = (unsigned int []){ 30, 60, 120, 240 },
219
+		.resolutions = (u8 []) {9, 10, 11, 12 },
220
+	},
221
+	[tmp100] = {
222
+		.set_mask = 3 << 5,	/* 12-bit mode */
223
+		.clr_mask = 1 << 7,	/* not one-shot mode */
224
+		.default_resolution = 12,
225
+		.default_sample_time = 320,
226
+		.num_sample_times = 4,
227
+		.sample_times = (unsigned int []){ 40, 80, 160, 320 },
228
+		.resolutions = (u8 []) {9, 10, 11, 12 },
229
+	},
230
+	[tmp101] = {
231
+		.set_mask = 3 << 5,	/* 12-bit mode */
232
+		.clr_mask = 1 << 7,	/* not one-shot mode */
233
+		.default_resolution = 12,
234
+		.default_sample_time = 320,
235
+		.num_sample_times = 4,
236
+		.sample_times = (unsigned int []){ 40, 80, 160, 320 },
237
+		.resolutions = (u8 []) {9, 10, 11, 12 },
238
+	},
239
+	[tmp105] = {
240
+		.set_mask = 3 << 5,	/* 12-bit mode */
241
+		.clr_mask = 1 << 7,	/* not one-shot mode*/
242
+		.default_resolution = 12,
243
+		.default_sample_time = 220,
244
+		.num_sample_times = 4,
245
+		.sample_times = (unsigned int []){ 28, 55, 110, 220 },
246
+		.resolutions = (u8 []) {9, 10, 11, 12 },
247
+	},
248
+	[tmp112] = {
249
+		.set_mask = 3 << 5,	/* 8 samples / second */
250
+		.clr_mask = 1 << 7,	/* no one-shot mode*/
251
+		.default_resolution = 12,
252
+		.default_sample_time = 125,
253
+		.num_sample_times = 4,
254
+		.sample_times = (unsigned int []){ 125, 250, 1000, 4000 },
255
+	},
256
+	[tmp175] = {
257
+		.set_mask = 3 << 5,	/* 12-bit mode */
258
+		.clr_mask = 1 << 7,	/* not one-shot mode*/
259
+		.default_resolution = 12,
260
+		.default_sample_time = 220,
261
+		.num_sample_times = 4,
262
+		.sample_times = (unsigned int []){ 28, 55, 110, 220 },
263
+		.resolutions = (u8 []) {9, 10, 11, 12 },
264
+	},
265
+	[tmp275] = {
266
+		.set_mask = 3 << 5,	/* 12-bit mode */
267
+		.clr_mask = 1 << 7,	/* not one-shot mode*/
268
+		.default_resolution = 12,
269
+		.default_sample_time = 220,
270
+		.num_sample_times = 4,
271
+		.sample_times = (unsigned int []){ 28, 55, 110, 220 },
272
+		.resolutions = (u8 []) {9, 10, 11, 12 },
273
+	},
274
+	[tmp75] = {
275
+		.set_mask = 3 << 5,	/* 12-bit mode */
276
+		.clr_mask = 1 << 7,	/* not one-shot mode*/
277
+		.default_resolution = 12,
278
+		.default_sample_time = 220,
279
+		.num_sample_times = 4,
280
+		.sample_times = (unsigned int []){ 28, 55, 110, 220 },
281
+		.resolutions = (u8 []) {9, 10, 11, 12 },
282
+	},
283
+	[tmp75b] = { /* not one-shot mode, Conversion rate 37Hz */
284
+		.clr_mask = 1 << 7 | 3 << 5,
285
+		.default_resolution = 12,
286
+		.default_sample_time = MSEC_PER_SEC / 37,
287
+		.sample_times = (unsigned int []){ MSEC_PER_SEC / 37,
288
+			MSEC_PER_SEC / 18,
289
+			MSEC_PER_SEC / 9, MSEC_PER_SEC / 4 },
290
+		.num_sample_times = 4,
291
+	},
292
+	[tmp75c] = {
293
+		.clr_mask = 1 << 5,	/*not one-shot mode*/
294
+		.default_resolution = 12,
295
+		.default_sample_time = MSEC_PER_SEC / 12,
296
+	}
297
+};
298
+
86299 static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
87300 {
88301 	return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8);
302
+}
303
+
304
+static int lm75_write_config(struct lm75_data *data, u8 set_mask,
305
+			     u8 clr_mask)
306
+{
307
+	u8 value;
308
+
309
+	clr_mask |= LM75_SHUTDOWN;
310
+	value = data->current_conf & ~clr_mask;
311
+	value |= set_mask;
312
+
313
+	if (data->current_conf != value) {
314
+		s32 err;
315
+
316
+		err = i2c_smbus_write_byte_data(data->client, LM75_REG_CONF,
317
+						value);
318
+		if (err)
319
+			return err;
320
+		data->current_conf = value;
321
+	}
322
+	return 0;
89323 }
90324 
91325 static int lm75_read(struct device *dev, enum hwmon_sensor_types type,
....@@ -131,15 +365,11 @@
131365 	return 0;
132366 }
133367 
134
-static int lm75_write(struct device *dev, enum hwmon_sensor_types type,
135
-		      u32 attr, int channel, long temp)
368
+static int lm75_write_temp(struct device *dev, u32 attr, long temp)
136369 {
137370 	struct lm75_data *data = dev_get_drvdata(dev);
138371 	u8 resolution;
139372 	int reg;
140
-
141
-	if (type != hwmon_temp)
142
-		return -EINVAL;
143373 
144374 	switch (attr) {
145375 	case hwmon_temp_max:
....@@ -156,8 +386,8 @@
156386 	 * Resolution of limit registers is assumed to be the same as the
157387 	 * temperature input register resolution unless given explicitly.
158388 	 */
159
-	if (data->resolution_limits)
160
-		resolution = data->resolution_limits;
389
+	if (data->params->resolution_limits)
390
+		resolution = data->params->resolution_limits;
161391 	else
162392 		resolution = data->resolution;
163393 
....@@ -168,23 +398,95 @@
168398 	return regmap_write(data->regmap, reg, (u16)temp);
169399 }
170400 
401
+static int lm75_update_interval(struct device *dev, long val)
402
+{
403
+	struct lm75_data *data = dev_get_drvdata(dev);
404
+	unsigned int reg;
405
+	u8 index;
406
+	s32 err;
407
+
408
+	index = find_closest(val, data->params->sample_times,
409
+			     (int)data->params->num_sample_times);
410
+
411
+	switch (data->kind) {
412
+	default:
413
+		err = lm75_write_config(data, lm75_sample_set_masks[index],
414
+					LM75_SAMPLE_CLEAR_MASK);
415
+		if (err)
416
+			return err;
417
+
418
+		data->sample_time = data->params->sample_times[index];
419
+		if (data->params->resolutions)
420
+			data->resolution = data->params->resolutions[index];
421
+		break;
422
+	case tmp112:
423
+		err = regmap_read(data->regmap, LM75_REG_CONF, &reg);
424
+		if (err < 0)
425
+			return err;
426
+		reg &= ~0x00c0;
427
+		reg |= (3 - index) << 6;
428
+		err = regmap_write(data->regmap, LM75_REG_CONF, reg);
429
+		if (err < 0)
430
+			return err;
431
+		data->sample_time = data->params->sample_times[index];
432
+		break;
433
+	case pct2075:
434
+		err = i2c_smbus_write_byte_data(data->client, PCT2075_REG_IDLE,
435
+						index + 1);
436
+		if (err)
437
+			return err;
438
+		data->sample_time = data->params->sample_times[index];
439
+		break;
440
+	}
441
+	return 0;
442
+}
443
+
444
+static int lm75_write_chip(struct device *dev, u32 attr, long val)
445
+{
446
+	switch (attr) {
447
+	case hwmon_chip_update_interval:
448
+		return lm75_update_interval(dev, val);
449
+	default:
450
+		return -EINVAL;
451
+	}
452
+	return 0;
453
+}
454
+
455
+static int lm75_write(struct device *dev, enum hwmon_sensor_types type,
456
+		      u32 attr, int channel, long val)
457
+{
458
+	switch (type) {
459
+	case hwmon_chip:
460
+		return lm75_write_chip(dev, attr, val);
461
+	case hwmon_temp:
462
+		return lm75_write_temp(dev, attr, val);
463
+	default:
464
+		return -EINVAL;
465
+	}
466
+	return 0;
467
+}
468
+
171469 static umode_t lm75_is_visible(const void *data, enum hwmon_sensor_types type,
172470 			       u32 attr, int channel)
173471 {
472
+	const struct lm75_data *config_data = data;
473
+
174474 	switch (type) {
175475 	case hwmon_chip:
176476 		switch (attr) {
177477 		case hwmon_chip_update_interval:
178
-			return S_IRUGO;
478
+			if (config_data->params->num_sample_times > 1)
479
+				return 0644;
480
+			return 0444;
179481 		}
180482 		break;
181483 	case hwmon_temp:
182484 		switch (attr) {
183485 		case hwmon_temp_input:
184
-			return S_IRUGO;
486
+			return 0444;
185487 		case hwmon_temp_max:
186488 		case hwmon_temp_max_hyst:
187
-			return S_IRUGO | S_IWUSR;
489
+			return 0644;
188490 		}
189491 		break;
190492 	default:
....@@ -193,35 +495,11 @@
193495 	return 0;
194496 }
195497 
196
-/*-----------------------------------------------------------------------*/
197
-
198
-/* device probe and removal */
199
-
200
-/* chip configuration */
201
-
202
-static const u32 lm75_chip_config[] = {
203
-	HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL,
204
-	0
205
-};
206
-
207
-static const struct hwmon_channel_info lm75_chip = {
208
-	.type = hwmon_chip,
209
-	.config = lm75_chip_config,
210
-};
211
-
212
-static const u32 lm75_temp_config[] = {
213
-	HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST,
214
-	0
215
-};
216
-
217
-static const struct hwmon_channel_info lm75_temp = {
218
-	.type = hwmon_temp,
219
-	.config = lm75_temp_config,
220
-};
221
-
222498 static const struct hwmon_channel_info *lm75_info[] = {
223
-	&lm75_chip,
224
-	&lm75_temp,
499
+	HWMON_CHANNEL_INFO(chip,
500
+			   HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL),
501
+	HWMON_CHANNEL_INFO(temp,
502
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST),
225503 	NULL
226504 };
227505 
....@@ -243,19 +521,27 @@
243521 
244522 static bool lm75_is_volatile_reg(struct device *dev, unsigned int reg)
245523 {
246
-	return reg == LM75_REG_TEMP;
524
+	return reg == LM75_REG_TEMP || reg == LM75_REG_CONF;
247525 }
248526 
249527 static const struct regmap_config lm75_regmap_config = {
250528 	.reg_bits = 8,
251529 	.val_bits = 16,
252
-	.max_register = LM75_REG_MAX,
530
+	.max_register = PCT2075_REG_IDLE,
253531 	.writeable_reg = lm75_is_writeable_reg,
254532 	.volatile_reg = lm75_is_volatile_reg,
255533 	.val_format_endian = REGMAP_ENDIAN_BIG,
256534 	.cache_type = REGCACHE_RBTREE,
257
-	.use_single_rw = true,
535
+	.use_single_read = true,
536
+	.use_single_write = true,
258537 };
538
+
539
+static void lm75_disable_regulator(void *data)
540
+{
541
+	struct lm75_data *lm75 = data;
542
+
543
+	regulator_disable(lm75->vs);
544
+}
259545 
260546 static void lm75_remove(void *data)
261547 {
....@@ -265,21 +551,20 @@
265551 	i2c_smbus_write_byte_data(client, LM75_REG_CONF, lm75->orig_conf);
266552 }
267553 
268
-static int
269
-lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
554
+static const struct i2c_device_id lm75_ids[];
555
+
556
+static int lm75_probe(struct i2c_client *client)
270557 {
271558 	struct device *dev = &client->dev;
272559 	struct device *hwmon_dev;
273560 	struct lm75_data *data;
274561 	int status, err;
275
-	u8 set_mask, clr_mask;
276
-	int new;
277562 	enum lm75_type kind;
278563 
279564 	if (client->dev.of_node)
280565 		kind = (enum lm75_type)of_device_get_match_data(&client->dev);
281566 	else
282
-		kind = id->driver_data;
567
+		kind = i2c_match_id(lm75_ids, client)->driver_data;
283568 
284569 	if (!i2c_check_functionality(client->adapter,
285570 			I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
....@@ -290,6 +575,11 @@
290575 		return -ENOMEM;
291576 
292577 	data->client = client;
578
+	data->kind = kind;
579
+
580
+	data->vs = devm_regulator_get(dev, "vs");
581
+	if (IS_ERR(data->vs))
582
+		return PTR_ERR(data->vs);
293583 
294584 	data->regmap = devm_regmap_init_i2c(client, &lm75_regmap_config);
295585 	if (IS_ERR(data->regmap))
....@@ -298,100 +588,41 @@
298588 	/* Set to LM75 resolution (9 bits, 1/2 degree C) and range.
299589 	 * Then tweak to be more precise when appropriate.
300590 	 */
301
-	set_mask = 0;
302
-	clr_mask = LM75_SHUTDOWN;		/* continuous conversions */
303591 
304
-	switch (kind) {
305
-	case adt75:
306
-		clr_mask |= 1 << 5;		/* not one-shot mode */
307
-		data->resolution = 12;
308
-		data->sample_time = MSEC_PER_SEC / 8;
309
-		break;
310
-	case ds1775:
311
-	case ds75:
312
-	case stds75:
313
-		clr_mask |= 3 << 5;
314
-		set_mask |= 2 << 5;		/* 11-bit mode */
315
-		data->resolution = 11;
316
-		data->sample_time = MSEC_PER_SEC;
317
-		break;
318
-	case ds7505:
319
-		set_mask |= 3 << 5;		/* 12-bit mode */
320
-		data->resolution = 12;
321
-		data->sample_time = MSEC_PER_SEC / 4;
322
-		break;
323
-	case g751:
324
-	case lm75:
325
-	case lm75a:
326
-		data->resolution = 9;
327
-		data->sample_time = MSEC_PER_SEC / 2;
328
-		break;
329
-	case lm75b:
330
-		data->resolution = 11;
331
-		data->sample_time = MSEC_PER_SEC / 4;
332
-		break;
333
-	case max6625:
334
-		data->resolution = 9;
335
-		data->sample_time = MSEC_PER_SEC / 4;
336
-		break;
337
-	case max6626:
338
-		data->resolution = 12;
339
-		data->resolution_limits = 9;
340
-		data->sample_time = MSEC_PER_SEC / 4;
341
-		break;
342
-	case tcn75:
343
-		data->resolution = 9;
344
-		data->sample_time = MSEC_PER_SEC / 8;
345
-		break;
346
-	case mcp980x:
347
-		data->resolution_limits = 9;
348
-		/* fall through */
349
-	case tmp100:
350
-	case tmp101:
351
-		set_mask |= 3 << 5;		/* 12-bit mode */
352
-		data->resolution = 12;
353
-		data->sample_time = MSEC_PER_SEC;
354
-		clr_mask |= 1 << 7;		/* not one-shot mode */
355
-		break;
356
-	case tmp112:
357
-		set_mask |= 3 << 5;		/* 12-bit mode */
358
-		clr_mask |= 1 << 7;		/* not one-shot mode */
359
-		data->resolution = 12;
360
-		data->sample_time = MSEC_PER_SEC / 4;
361
-		break;
362
-	case tmp105:
363
-	case tmp175:
364
-	case tmp275:
365
-	case tmp75:
366
-		set_mask |= 3 << 5;		/* 12-bit mode */
367
-		clr_mask |= 1 << 7;		/* not one-shot mode */
368
-		data->resolution = 12;
369
-		data->sample_time = MSEC_PER_SEC / 2;
370
-		break;
371
-	case tmp75c:
372
-		clr_mask |= 1 << 5;		/* not one-shot mode */
373
-		data->resolution = 12;
374
-		data->sample_time = MSEC_PER_SEC / 4;
375
-		break;
592
+	data->params = &device_params[data->kind];
593
+
594
+	/* Save default sample time and resolution*/
595
+	data->sample_time = data->params->default_sample_time;
596
+	data->resolution = data->params->default_resolution;
597
+
598
+	/* Enable the power */
599
+	err = regulator_enable(data->vs);
600
+	if (err) {
601
+		dev_err(dev, "failed to enable regulator: %d\n", err);
602
+		return err;
376603 	}
377604 
378
-	/* configure as specified */
605
+	err = devm_add_action_or_reset(dev, lm75_disable_regulator, data);
606
+	if (err)
607
+		return err;
608
+
609
+	/* Cache original configuration */
379610 	status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
380611 	if (status < 0) {
381612 		dev_dbg(dev, "Can't read config? %d\n", status);
382613 		return status;
383614 	}
384615 	data->orig_conf = status;
385
-	new = status & ~clr_mask;
386
-	new |= set_mask;
387
-	if (status != new)
388
-		i2c_smbus_write_byte_data(client, LM75_REG_CONF, new);
616
+	data->current_conf = status;
617
+
618
+	err = lm75_write_config(data, data->params->set_mask,
619
+				data->params->clr_mask);
620
+	if (err)
621
+		return err;
389622 
390623 	err = devm_add_action_or_reset(dev, lm75_remove, data);
391624 	if (err)
392625 		return err;
393
-
394
-	dev_dbg(dev, "Config %02x\n", new);
395626 
396627 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
397628 							 data, &lm75_chip_info,
....@@ -415,8 +646,12 @@
415646 	{ "lm75b", lm75b, },
416647 	{ "max6625", max6625, },
417648 	{ "max6626", max6626, },
649
+	{ "max31725", max31725, },
650
+	{ "max31726", max31725, },
418651 	{ "mcp980x", mcp980x, },
652
+	{ "pct2075", pct2075, },
419653 	{ "stds75", stds75, },
654
+	{ "stlm75", stlm75, },
420655 	{ "tcn75", tcn75, },
421656 	{ "tmp100", tmp100, },
422657 	{ "tmp101", tmp101, },
....@@ -425,12 +660,13 @@
425660 	{ "tmp175", tmp175, },
426661 	{ "tmp275", tmp275, },
427662 	{ "tmp75", tmp75, },
663
+	{ "tmp75b", tmp75b, },
428664 	{ "tmp75c", tmp75c, },
429665 	{ /* LIST END */ }
430666 };
431667 MODULE_DEVICE_TABLE(i2c, lm75_ids);
432668 
433
-static const struct of_device_id lm75_of_match[] = {
669
+static const struct of_device_id __maybe_unused lm75_of_match[] = {
434670 	{
435671 		.compatible = "adi,adt75",
436672 		.data = (void *)adt75
....@@ -472,12 +708,28 @@
472708 		.data = (void *)max6626
473709 	},
474710 	{
711
+		.compatible = "maxim,max31725",
712
+		.data = (void *)max31725
713
+	},
714
+	{
715
+		.compatible = "maxim,max31726",
716
+		.data = (void *)max31725
717
+	},
718
+	{
475719 		.compatible = "maxim,mcp980x",
476720 		.data = (void *)mcp980x
477721 	},
478722 	{
723
+		.compatible = "nxp,pct2075",
724
+		.data = (void *)pct2075
725
+	},
726
+	{
479727 		.compatible = "st,stds75",
480728 		.data = (void *)stds75
729
+	},
730
+	{
731
+		.compatible = "st,stlm75",
732
+		.data = (void *)stlm75
481733 	},
482734 	{
483735 		.compatible = "microchip,tcn75",
....@@ -510,6 +762,10 @@
510762 	{
511763 		.compatible = "ti,tmp75",
512764 		.data = (void *)tmp75
765
+	},
766
+	{
767
+		.compatible = "ti,tmp75b",
768
+		.data = (void *)tmp75b
513769 	},
514770 	{
515771 		.compatible = "ti,tmp75c",
....@@ -566,8 +822,10 @@
566822 
567823 	/* First check for LM75A */
568824 	if (i2c_smbus_read_byte_data(new_client, 7) == LM75A_ID) {
569
-		/* LM75A returns 0xff on unused registers so
570
-		   just to be sure we check for that too. */
825
+		/*
826
+		 * LM75A returns 0xff on unused registers so
827
+		 * just to be sure we check for that too.
828
+		 */
571829 		if (i2c_smbus_read_byte_data(new_client, 4) != 0xff
572830 		 || i2c_smbus_read_byte_data(new_client, 5) != 0xff
573831 		 || i2c_smbus_read_byte_data(new_client, 6) != 0xff)
....@@ -618,6 +876,7 @@
618876 {
619877 	int status;
620878 	struct i2c_client *client = to_i2c_client(dev);
879
+
621880 	status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
622881 	if (status < 0) {
623882 		dev_dbg(&client->dev, "Can't read config? %d\n", status);
....@@ -632,6 +891,7 @@
632891 {
633892 	int status;
634893 	struct i2c_client *client = to_i2c_client(dev);
894
+
635895 	status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
636896 	if (status < 0) {
637897 		dev_dbg(&client->dev, "Can't read config? %d\n", status);
....@@ -658,7 +918,7 @@
658918 		.of_match_table = of_match_ptr(lm75_of_match),
659919 		.pm	= LM75_DEV_PM_OPS,
660920 	},
661
-	.probe		= lm75_probe,
921
+	.probe_new	= lm75_probe,
662922 	.id_table	= lm75_ids,
663923 	.detect		= lm75_detect,
664924 	.address_list	= normal_i2c,