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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
a3eeb453 GR |
2 | /* |
3 | * Hardware monitoring driver for Maxim MAX34440/MAX34441 | |
4 | * | |
5 | * Copyright (c) 2011 Ericsson AB. | |
50115ac9 | 6 | * Copyright (c) 2012 Guenter Roeck |
a3eeb453 GR |
7 | */ |
8 | ||
2c052d42 | 9 | #include <linux/bitops.h> |
a3eeb453 GR |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/err.h> | |
14 | #include <linux/i2c.h> | |
15 | #include "pmbus.h" | |
16 | ||
7a001dba | 17 | enum chips { max34440, max34441, max34446, max34451, max34460, max34461 }; |
a3eeb453 | 18 | |
98591dbe GR |
19 | #define MAX34440_MFR_VOUT_PEAK 0xd4 |
20 | #define MAX34440_MFR_IOUT_PEAK 0xd5 | |
21 | #define MAX34440_MFR_TEMPERATURE_PEAK 0xd6 | |
56aad5d1 | 22 | #define MAX34440_MFR_VOUT_MIN 0xd7 |
98591dbe | 23 | |
590defe5 GR |
24 | #define MAX34446_MFR_POUT_PEAK 0xe0 |
25 | #define MAX34446_MFR_POUT_AVG 0xe1 | |
26 | #define MAX34446_MFR_IOUT_AVG 0xe2 | |
27 | #define MAX34446_MFR_TEMPERATURE_AVG 0xe3 | |
28 | ||
2c052d42 GR |
29 | #define MAX34440_STATUS_OC_WARN BIT(0) |
30 | #define MAX34440_STATUS_OC_FAULT BIT(1) | |
31 | #define MAX34440_STATUS_OT_FAULT BIT(5) | |
32 | #define MAX34440_STATUS_OT_WARN BIT(6) | |
a3eeb453 | 33 | |
7a001dba KY |
34 | #define MAX34451_MFR_CHANNEL_CONFIG 0xe4 |
35 | #define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK 0x3f | |
36 | ||
590defe5 GR |
37 | struct max34440_data { |
38 | int id; | |
39 | struct pmbus_driver_info info; | |
40 | }; | |
41 | ||
42 | #define to_max34440_data(x) container_of(x, struct max34440_data, info) | |
43 | ||
98591dbe GR |
44 | static int max34440_read_word_data(struct i2c_client *client, int page, int reg) |
45 | { | |
46 | int ret; | |
590defe5 GR |
47 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); |
48 | const struct max34440_data *data = to_max34440_data(info); | |
98591dbe GR |
49 | |
50 | switch (reg) { | |
56aad5d1 GR |
51 | case PMBUS_VIRT_READ_VOUT_MIN: |
52 | ret = pmbus_read_word_data(client, page, | |
53 | MAX34440_MFR_VOUT_MIN); | |
54 | break; | |
98591dbe GR |
55 | case PMBUS_VIRT_READ_VOUT_MAX: |
56 | ret = pmbus_read_word_data(client, page, | |
57 | MAX34440_MFR_VOUT_PEAK); | |
58 | break; | |
590defe5 | 59 | case PMBUS_VIRT_READ_IOUT_AVG: |
7a001dba | 60 | if (data->id != max34446 && data->id != max34451) |
590defe5 GR |
61 | return -ENXIO; |
62 | ret = pmbus_read_word_data(client, page, | |
63 | MAX34446_MFR_IOUT_AVG); | |
64 | break; | |
98591dbe GR |
65 | case PMBUS_VIRT_READ_IOUT_MAX: |
66 | ret = pmbus_read_word_data(client, page, | |
67 | MAX34440_MFR_IOUT_PEAK); | |
68 | break; | |
590defe5 GR |
69 | case PMBUS_VIRT_READ_POUT_AVG: |
70 | if (data->id != max34446) | |
71 | return -ENXIO; | |
72 | ret = pmbus_read_word_data(client, page, | |
73 | MAX34446_MFR_POUT_AVG); | |
74 | break; | |
75 | case PMBUS_VIRT_READ_POUT_MAX: | |
76 | if (data->id != max34446) | |
77 | return -ENXIO; | |
78 | ret = pmbus_read_word_data(client, page, | |
79 | MAX34446_MFR_POUT_PEAK); | |
80 | break; | |
81 | case PMBUS_VIRT_READ_TEMP_AVG: | |
50115ac9 GR |
82 | if (data->id != max34446 && data->id != max34460 && |
83 | data->id != max34461) | |
590defe5 GR |
84 | return -ENXIO; |
85 | ret = pmbus_read_word_data(client, page, | |
86 | MAX34446_MFR_TEMPERATURE_AVG); | |
87 | break; | |
98591dbe GR |
88 | case PMBUS_VIRT_READ_TEMP_MAX: |
89 | ret = pmbus_read_word_data(client, page, | |
90 | MAX34440_MFR_TEMPERATURE_PEAK); | |
91 | break; | |
590defe5 GR |
92 | case PMBUS_VIRT_RESET_POUT_HISTORY: |
93 | if (data->id != max34446) | |
94 | return -ENXIO; | |
95 | ret = 0; | |
96 | break; | |
98591dbe GR |
97 | case PMBUS_VIRT_RESET_VOUT_HISTORY: |
98 | case PMBUS_VIRT_RESET_IOUT_HISTORY: | |
99 | case PMBUS_VIRT_RESET_TEMP_HISTORY: | |
100 | ret = 0; | |
101 | break; | |
102 | default: | |
103 | ret = -ENODATA; | |
104 | break; | |
105 | } | |
106 | return ret; | |
107 | } | |
108 | ||
109 | static int max34440_write_word_data(struct i2c_client *client, int page, | |
110 | int reg, u16 word) | |
111 | { | |
590defe5 GR |
112 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); |
113 | const struct max34440_data *data = to_max34440_data(info); | |
98591dbe GR |
114 | int ret; |
115 | ||
116 | switch (reg) { | |
590defe5 GR |
117 | case PMBUS_VIRT_RESET_POUT_HISTORY: |
118 | ret = pmbus_write_word_data(client, page, | |
119 | MAX34446_MFR_POUT_PEAK, 0); | |
120 | if (ret) | |
121 | break; | |
122 | ret = pmbus_write_word_data(client, page, | |
123 | MAX34446_MFR_POUT_AVG, 0); | |
124 | break; | |
98591dbe | 125 | case PMBUS_VIRT_RESET_VOUT_HISTORY: |
56aad5d1 GR |
126 | ret = pmbus_write_word_data(client, page, |
127 | MAX34440_MFR_VOUT_MIN, 0x7fff); | |
128 | if (ret) | |
129 | break; | |
98591dbe GR |
130 | ret = pmbus_write_word_data(client, page, |
131 | MAX34440_MFR_VOUT_PEAK, 0); | |
132 | break; | |
133 | case PMBUS_VIRT_RESET_IOUT_HISTORY: | |
134 | ret = pmbus_write_word_data(client, page, | |
135 | MAX34440_MFR_IOUT_PEAK, 0); | |
7a001dba | 136 | if (!ret && (data->id == max34446 || data->id == max34451)) |
590defe5 GR |
137 | ret = pmbus_write_word_data(client, page, |
138 | MAX34446_MFR_IOUT_AVG, 0); | |
139 | ||
98591dbe GR |
140 | break; |
141 | case PMBUS_VIRT_RESET_TEMP_HISTORY: | |
142 | ret = pmbus_write_word_data(client, page, | |
143 | MAX34440_MFR_TEMPERATURE_PEAK, | |
dc91ad8e | 144 | 0x8000); |
590defe5 GR |
145 | if (!ret && data->id == max34446) |
146 | ret = pmbus_write_word_data(client, page, | |
147 | MAX34446_MFR_TEMPERATURE_AVG, 0); | |
98591dbe GR |
148 | break; |
149 | default: | |
150 | ret = -ENODATA; | |
151 | break; | |
152 | } | |
153 | return ret; | |
154 | } | |
155 | ||
2cfa6aed | 156 | static int max34440_read_byte_data(struct i2c_client *client, int page, int reg) |
a3eeb453 | 157 | { |
da8e48ab | 158 | int ret = 0; |
a3eeb453 GR |
159 | int mfg_status; |
160 | ||
da8e48ab GR |
161 | if (page >= 0) { |
162 | ret = pmbus_set_page(client, page); | |
163 | if (ret < 0) | |
164 | return ret; | |
165 | } | |
a3eeb453 GR |
166 | |
167 | switch (reg) { | |
168 | case PMBUS_STATUS_IOUT: | |
169 | mfg_status = pmbus_read_word_data(client, 0, | |
170 | PMBUS_STATUS_MFR_SPECIFIC); | |
171 | if (mfg_status < 0) | |
172 | return mfg_status; | |
173 | if (mfg_status & MAX34440_STATUS_OC_WARN) | |
174 | ret |= PB_IOUT_OC_WARNING; | |
175 | if (mfg_status & MAX34440_STATUS_OC_FAULT) | |
176 | ret |= PB_IOUT_OC_FAULT; | |
177 | break; | |
178 | case PMBUS_STATUS_TEMPERATURE: | |
179 | mfg_status = pmbus_read_word_data(client, 0, | |
180 | PMBUS_STATUS_MFR_SPECIFIC); | |
181 | if (mfg_status < 0) | |
182 | return mfg_status; | |
183 | if (mfg_status & MAX34440_STATUS_OT_WARN) | |
184 | ret |= PB_TEMP_OT_WARNING; | |
185 | if (mfg_status & MAX34440_STATUS_OT_FAULT) | |
186 | ret |= PB_TEMP_OT_FAULT; | |
187 | break; | |
188 | default: | |
189 | ret = -ENODATA; | |
190 | break; | |
191 | } | |
192 | return ret; | |
193 | } | |
194 | ||
7a001dba KY |
195 | static int max34451_set_supported_funcs(struct i2c_client *client, |
196 | struct max34440_data *data) | |
197 | { | |
198 | /* | |
199 | * Each of the channel 0-15 can be configured to monitor the following | |
200 | * functions based on MFR_CHANNEL_CONFIG[5:0] | |
201 | * 0x10: Sequencing + voltage monitoring (only valid for PAGES 0–11) | |
202 | * 0x20: Voltage monitoring (no sequencing) | |
203 | * 0x21: Voltage read only | |
204 | * 0x22: Current monitoring | |
205 | * 0x23: Current read only | |
206 | * 0x30: General-purpose input active low | |
207 | * 0x34: General-purpose input active high | |
208 | * 0x00: Disabled | |
209 | */ | |
210 | ||
211 | int page, rv; | |
212 | ||
213 | for (page = 0; page < 16; page++) { | |
214 | rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); | |
215 | if (rv < 0) | |
216 | return rv; | |
217 | ||
218 | rv = i2c_smbus_read_word_data(client, | |
219 | MAX34451_MFR_CHANNEL_CONFIG); | |
220 | if (rv < 0) | |
221 | return rv; | |
222 | ||
223 | switch (rv & MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK) { | |
224 | case 0x10: | |
225 | case 0x20: | |
226 | data->info.func[page] = PMBUS_HAVE_VOUT | | |
227 | PMBUS_HAVE_STATUS_VOUT; | |
228 | break; | |
229 | case 0x21: | |
230 | data->info.func[page] = PMBUS_HAVE_VOUT; | |
231 | break; | |
232 | case 0x22: | |
233 | data->info.func[page] = PMBUS_HAVE_IOUT | | |
234 | PMBUS_HAVE_STATUS_IOUT; | |
235 | break; | |
236 | case 0x23: | |
237 | data->info.func[page] = PMBUS_HAVE_IOUT; | |
238 | break; | |
239 | default: | |
240 | break; | |
241 | } | |
242 | } | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
a3eeb453 GR |
247 | static struct pmbus_driver_info max34440_info[] = { |
248 | [max34440] = { | |
249 | .pages = 14, | |
1061d851 GR |
250 | .format[PSC_VOLTAGE_IN] = direct, |
251 | .format[PSC_VOLTAGE_OUT] = direct, | |
252 | .format[PSC_TEMPERATURE] = direct, | |
253 | .format[PSC_CURRENT_OUT] = direct, | |
a3eeb453 GR |
254 | .m[PSC_VOLTAGE_IN] = 1, |
255 | .b[PSC_VOLTAGE_IN] = 0, | |
256 | .R[PSC_VOLTAGE_IN] = 3, /* R = 0 in datasheet reflects mV */ | |
257 | .m[PSC_VOLTAGE_OUT] = 1, | |
258 | .b[PSC_VOLTAGE_OUT] = 0, | |
259 | .R[PSC_VOLTAGE_OUT] = 3, /* R = 0 in datasheet reflects mV */ | |
260 | .m[PSC_CURRENT_OUT] = 1, | |
261 | .b[PSC_CURRENT_OUT] = 0, | |
262 | .R[PSC_CURRENT_OUT] = 3, /* R = 0 in datasheet reflects mA */ | |
263 | .m[PSC_TEMPERATURE] = 1, | |
264 | .b[PSC_TEMPERATURE] = 0, | |
265 | .R[PSC_TEMPERATURE] = 2, | |
266 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
267 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
268 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
269 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
270 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
271 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
272 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
273 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
274 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
275 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
276 | .func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
277 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
278 | .func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
279 | .func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
280 | .func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
281 | .func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
282 | .func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
283 | .func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
284 | .func[12] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
285 | .func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
2cfa6aed | 286 | .read_byte_data = max34440_read_byte_data, |
98591dbe GR |
287 | .read_word_data = max34440_read_word_data, |
288 | .write_word_data = max34440_write_word_data, | |
a3eeb453 GR |
289 | }, |
290 | [max34441] = { | |
291 | .pages = 12, | |
1061d851 GR |
292 | .format[PSC_VOLTAGE_IN] = direct, |
293 | .format[PSC_VOLTAGE_OUT] = direct, | |
294 | .format[PSC_TEMPERATURE] = direct, | |
295 | .format[PSC_CURRENT_OUT] = direct, | |
296 | .format[PSC_FAN] = direct, | |
a3eeb453 GR |
297 | .m[PSC_VOLTAGE_IN] = 1, |
298 | .b[PSC_VOLTAGE_IN] = 0, | |
299 | .R[PSC_VOLTAGE_IN] = 3, | |
300 | .m[PSC_VOLTAGE_OUT] = 1, | |
301 | .b[PSC_VOLTAGE_OUT] = 0, | |
302 | .R[PSC_VOLTAGE_OUT] = 3, | |
303 | .m[PSC_CURRENT_OUT] = 1, | |
304 | .b[PSC_CURRENT_OUT] = 0, | |
305 | .R[PSC_CURRENT_OUT] = 3, | |
306 | .m[PSC_TEMPERATURE] = 1, | |
307 | .b[PSC_TEMPERATURE] = 0, | |
308 | .R[PSC_TEMPERATURE] = 2, | |
309 | .m[PSC_FAN] = 1, | |
310 | .b[PSC_FAN] = 0, | |
311 | .R[PSC_FAN] = 0, | |
312 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
313 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
314 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
315 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
316 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
317 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
318 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
319 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
320 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
321 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
322 | .func[5] = PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12, | |
323 | .func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
324 | .func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
325 | .func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
326 | .func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
327 | .func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
328 | .func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
2cfa6aed | 329 | .read_byte_data = max34440_read_byte_data, |
98591dbe GR |
330 | .read_word_data = max34440_read_word_data, |
331 | .write_word_data = max34440_write_word_data, | |
a3eeb453 | 332 | }, |
590defe5 GR |
333 | [max34446] = { |
334 | .pages = 7, | |
335 | .format[PSC_VOLTAGE_IN] = direct, | |
336 | .format[PSC_VOLTAGE_OUT] = direct, | |
337 | .format[PSC_TEMPERATURE] = direct, | |
338 | .format[PSC_CURRENT_OUT] = direct, | |
339 | .format[PSC_POWER] = direct, | |
340 | .m[PSC_VOLTAGE_IN] = 1, | |
341 | .b[PSC_VOLTAGE_IN] = 0, | |
342 | .R[PSC_VOLTAGE_IN] = 3, | |
343 | .m[PSC_VOLTAGE_OUT] = 1, | |
344 | .b[PSC_VOLTAGE_OUT] = 0, | |
345 | .R[PSC_VOLTAGE_OUT] = 3, | |
346 | .m[PSC_CURRENT_OUT] = 1, | |
347 | .b[PSC_CURRENT_OUT] = 0, | |
348 | .R[PSC_CURRENT_OUT] = 3, | |
349 | .m[PSC_POWER] = 1, | |
350 | .b[PSC_POWER] = 0, | |
351 | .R[PSC_POWER] = 3, | |
352 | .m[PSC_TEMPERATURE] = 1, | |
353 | .b[PSC_TEMPERATURE] = 0, | |
354 | .R[PSC_TEMPERATURE] = 2, | |
355 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
356 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT, | |
357 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
358 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
359 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
360 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT, | |
361 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
362 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
363 | .func[4] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
364 | .func[5] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
365 | .func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
366 | .read_byte_data = max34440_read_byte_data, | |
367 | .read_word_data = max34440_read_word_data, | |
368 | .write_word_data = max34440_write_word_data, | |
369 | }, | |
7a001dba KY |
370 | [max34451] = { |
371 | .pages = 21, | |
372 | .format[PSC_VOLTAGE_OUT] = direct, | |
373 | .format[PSC_TEMPERATURE] = direct, | |
374 | .format[PSC_CURRENT_OUT] = direct, | |
375 | .m[PSC_VOLTAGE_OUT] = 1, | |
376 | .b[PSC_VOLTAGE_OUT] = 0, | |
377 | .R[PSC_VOLTAGE_OUT] = 3, | |
378 | .m[PSC_CURRENT_OUT] = 1, | |
379 | .b[PSC_CURRENT_OUT] = 0, | |
380 | .R[PSC_CURRENT_OUT] = 2, | |
381 | .m[PSC_TEMPERATURE] = 1, | |
382 | .b[PSC_TEMPERATURE] = 0, | |
383 | .R[PSC_TEMPERATURE] = 2, | |
384 | /* func 0-15 is set dynamically before probing */ | |
385 | .func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
386 | .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
387 | .func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
388 | .func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
389 | .func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
390 | .read_byte_data = max34440_read_byte_data, | |
391 | .read_word_data = max34440_read_word_data, | |
392 | .write_word_data = max34440_write_word_data, | |
393 | }, | |
50115ac9 GR |
394 | [max34460] = { |
395 | .pages = 18, | |
396 | .format[PSC_VOLTAGE_OUT] = direct, | |
397 | .format[PSC_TEMPERATURE] = direct, | |
398 | .m[PSC_VOLTAGE_OUT] = 1, | |
399 | .b[PSC_VOLTAGE_OUT] = 0, | |
400 | .R[PSC_VOLTAGE_OUT] = 3, | |
401 | .m[PSC_TEMPERATURE] = 1, | |
402 | .b[PSC_TEMPERATURE] = 0, | |
403 | .R[PSC_TEMPERATURE] = 2, | |
404 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
405 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
406 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
407 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
408 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
409 | .func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
410 | .func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
411 | .func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
412 | .func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
413 | .func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
414 | .func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
415 | .func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
416 | .func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
417 | .func[14] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
418 | .func[15] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
419 | .func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
420 | .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
421 | .read_byte_data = max34440_read_byte_data, | |
422 | .read_word_data = max34440_read_word_data, | |
423 | .write_word_data = max34440_write_word_data, | |
424 | }, | |
425 | [max34461] = { | |
426 | .pages = 23, | |
427 | .format[PSC_VOLTAGE_OUT] = direct, | |
428 | .format[PSC_TEMPERATURE] = direct, | |
429 | .m[PSC_VOLTAGE_OUT] = 1, | |
430 | .b[PSC_VOLTAGE_OUT] = 0, | |
431 | .R[PSC_VOLTAGE_OUT] = 3, | |
432 | .m[PSC_TEMPERATURE] = 1, | |
433 | .b[PSC_TEMPERATURE] = 0, | |
434 | .R[PSC_TEMPERATURE] = 2, | |
435 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
436 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
437 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
438 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
439 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
440 | .func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
441 | .func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
442 | .func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
443 | .func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
444 | .func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
445 | .func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
446 | .func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
447 | .func[12] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
448 | .func[13] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
449 | .func[14] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
450 | .func[15] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
451 | /* page 16 is reserved */ | |
452 | .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
453 | .func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
454 | .func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
455 | .func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
456 | .func[21] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
457 | .read_byte_data = max34440_read_byte_data, | |
458 | .read_word_data = max34440_read_word_data, | |
459 | .write_word_data = max34440_write_word_data, | |
460 | }, | |
a3eeb453 GR |
461 | }; |
462 | ||
463 | static int max34440_probe(struct i2c_client *client, | |
464 | const struct i2c_device_id *id) | |
465 | { | |
590defe5 | 466 | struct max34440_data *data; |
7a001dba | 467 | int rv; |
590defe5 GR |
468 | |
469 | data = devm_kzalloc(&client->dev, sizeof(struct max34440_data), | |
470 | GFP_KERNEL); | |
471 | if (!data) | |
472 | return -ENOMEM; | |
473 | data->id = id->driver_data; | |
474 | data->info = max34440_info[id->driver_data]; | |
475 | ||
7a001dba KY |
476 | if (data->id == max34451) { |
477 | rv = max34451_set_supported_funcs(client, data); | |
478 | if (rv) | |
479 | return rv; | |
480 | } | |
481 | ||
590defe5 | 482 | return pmbus_do_probe(client, id, &data->info); |
a3eeb453 GR |
483 | } |
484 | ||
a3eeb453 GR |
485 | static const struct i2c_device_id max34440_id[] = { |
486 | {"max34440", max34440}, | |
487 | {"max34441", max34441}, | |
590defe5 | 488 | {"max34446", max34446}, |
7a001dba | 489 | {"max34451", max34451}, |
50115ac9 GR |
490 | {"max34460", max34460}, |
491 | {"max34461", max34461}, | |
a3eeb453 GR |
492 | {} |
493 | }; | |
a3eeb453 GR |
494 | MODULE_DEVICE_TABLE(i2c, max34440_id); |
495 | ||
496 | /* This is the driver that will be inserted */ | |
497 | static struct i2c_driver max34440_driver = { | |
498 | .driver = { | |
499 | .name = "max34440", | |
500 | }, | |
501 | .probe = max34440_probe, | |
dd285ad7 | 502 | .remove = pmbus_do_remove, |
a3eeb453 GR |
503 | .id_table = max34440_id, |
504 | }; | |
505 | ||
f0967eea | 506 | module_i2c_driver(max34440_driver); |
a3eeb453 GR |
507 | |
508 | MODULE_AUTHOR("Guenter Roeck"); | |
509 | MODULE_DESCRIPTION("PMBus driver for Maxim MAX34440/MAX34441"); | |
510 | MODULE_LICENSE("GPL"); |