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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 | |
2b522781 SF |
34 | /* |
35 | * The whole max344* family have IOUT_OC_WARN_LIMIT and IOUT_OC_FAULT_LIMIT | |
36 | * swapped from the standard pmbus spec addresses. | |
37 | */ | |
38 | #define MAX34440_IOUT_OC_WARN_LIMIT 0x46 | |
39 | #define MAX34440_IOUT_OC_FAULT_LIMIT 0x4A | |
40 | ||
7a001dba KY |
41 | #define MAX34451_MFR_CHANNEL_CONFIG 0xe4 |
42 | #define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK 0x3f | |
43 | ||
590defe5 GR |
44 | struct max34440_data { |
45 | int id; | |
46 | struct pmbus_driver_info info; | |
47 | }; | |
48 | ||
49 | #define to_max34440_data(x) container_of(x, struct max34440_data, info) | |
50 | ||
dd431939 SK |
51 | static const struct i2c_device_id max34440_id[]; |
52 | ||
43f33b6e GR |
53 | static int max34440_read_word_data(struct i2c_client *client, int page, |
54 | int phase, int reg) | |
98591dbe GR |
55 | { |
56 | int ret; | |
590defe5 GR |
57 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); |
58 | const struct max34440_data *data = to_max34440_data(info); | |
98591dbe GR |
59 | |
60 | switch (reg) { | |
2b522781 SF |
61 | case PMBUS_IOUT_OC_FAULT_LIMIT: |
62 | ret = pmbus_read_word_data(client, page, phase, | |
63 | MAX34440_IOUT_OC_FAULT_LIMIT); | |
64 | break; | |
65 | case PMBUS_IOUT_OC_WARN_LIMIT: | |
66 | ret = pmbus_read_word_data(client, page, phase, | |
67 | MAX34440_IOUT_OC_WARN_LIMIT); | |
68 | break; | |
56aad5d1 | 69 | case PMBUS_VIRT_READ_VOUT_MIN: |
43f33b6e | 70 | ret = pmbus_read_word_data(client, page, phase, |
56aad5d1 GR |
71 | MAX34440_MFR_VOUT_MIN); |
72 | break; | |
98591dbe | 73 | case PMBUS_VIRT_READ_VOUT_MAX: |
43f33b6e | 74 | ret = pmbus_read_word_data(client, page, phase, |
98591dbe GR |
75 | MAX34440_MFR_VOUT_PEAK); |
76 | break; | |
590defe5 | 77 | case PMBUS_VIRT_READ_IOUT_AVG: |
7a001dba | 78 | if (data->id != max34446 && data->id != max34451) |
590defe5 | 79 | return -ENXIO; |
43f33b6e | 80 | ret = pmbus_read_word_data(client, page, phase, |
590defe5 GR |
81 | MAX34446_MFR_IOUT_AVG); |
82 | break; | |
98591dbe | 83 | case PMBUS_VIRT_READ_IOUT_MAX: |
43f33b6e | 84 | ret = pmbus_read_word_data(client, page, phase, |
98591dbe GR |
85 | MAX34440_MFR_IOUT_PEAK); |
86 | break; | |
590defe5 GR |
87 | case PMBUS_VIRT_READ_POUT_AVG: |
88 | if (data->id != max34446) | |
89 | return -ENXIO; | |
43f33b6e | 90 | ret = pmbus_read_word_data(client, page, phase, |
590defe5 GR |
91 | MAX34446_MFR_POUT_AVG); |
92 | break; | |
93 | case PMBUS_VIRT_READ_POUT_MAX: | |
94 | if (data->id != max34446) | |
95 | return -ENXIO; | |
43f33b6e | 96 | ret = pmbus_read_word_data(client, page, phase, |
590defe5 GR |
97 | MAX34446_MFR_POUT_PEAK); |
98 | break; | |
99 | case PMBUS_VIRT_READ_TEMP_AVG: | |
50115ac9 GR |
100 | if (data->id != max34446 && data->id != max34460 && |
101 | data->id != max34461) | |
590defe5 | 102 | return -ENXIO; |
43f33b6e | 103 | ret = pmbus_read_word_data(client, page, phase, |
590defe5 GR |
104 | MAX34446_MFR_TEMPERATURE_AVG); |
105 | break; | |
98591dbe | 106 | case PMBUS_VIRT_READ_TEMP_MAX: |
43f33b6e | 107 | ret = pmbus_read_word_data(client, page, phase, |
98591dbe GR |
108 | MAX34440_MFR_TEMPERATURE_PEAK); |
109 | break; | |
590defe5 GR |
110 | case PMBUS_VIRT_RESET_POUT_HISTORY: |
111 | if (data->id != max34446) | |
112 | return -ENXIO; | |
113 | ret = 0; | |
114 | break; | |
98591dbe GR |
115 | case PMBUS_VIRT_RESET_VOUT_HISTORY: |
116 | case PMBUS_VIRT_RESET_IOUT_HISTORY: | |
117 | case PMBUS_VIRT_RESET_TEMP_HISTORY: | |
118 | ret = 0; | |
119 | break; | |
120 | default: | |
121 | ret = -ENODATA; | |
122 | break; | |
123 | } | |
124 | return ret; | |
125 | } | |
126 | ||
127 | static int max34440_write_word_data(struct i2c_client *client, int page, | |
128 | int reg, u16 word) | |
129 | { | |
590defe5 GR |
130 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); |
131 | const struct max34440_data *data = to_max34440_data(info); | |
98591dbe GR |
132 | int ret; |
133 | ||
134 | switch (reg) { | |
2b522781 SF |
135 | case PMBUS_IOUT_OC_FAULT_LIMIT: |
136 | ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_FAULT_LIMIT, | |
137 | word); | |
138 | break; | |
139 | case PMBUS_IOUT_OC_WARN_LIMIT: | |
140 | ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_WARN_LIMIT, | |
141 | word); | |
142 | break; | |
590defe5 GR |
143 | case PMBUS_VIRT_RESET_POUT_HISTORY: |
144 | ret = pmbus_write_word_data(client, page, | |
145 | MAX34446_MFR_POUT_PEAK, 0); | |
146 | if (ret) | |
147 | break; | |
148 | ret = pmbus_write_word_data(client, page, | |
149 | MAX34446_MFR_POUT_AVG, 0); | |
150 | break; | |
98591dbe | 151 | case PMBUS_VIRT_RESET_VOUT_HISTORY: |
56aad5d1 GR |
152 | ret = pmbus_write_word_data(client, page, |
153 | MAX34440_MFR_VOUT_MIN, 0x7fff); | |
154 | if (ret) | |
155 | break; | |
98591dbe GR |
156 | ret = pmbus_write_word_data(client, page, |
157 | MAX34440_MFR_VOUT_PEAK, 0); | |
158 | break; | |
159 | case PMBUS_VIRT_RESET_IOUT_HISTORY: | |
160 | ret = pmbus_write_word_data(client, page, | |
161 | MAX34440_MFR_IOUT_PEAK, 0); | |
7a001dba | 162 | if (!ret && (data->id == max34446 || data->id == max34451)) |
590defe5 GR |
163 | ret = pmbus_write_word_data(client, page, |
164 | MAX34446_MFR_IOUT_AVG, 0); | |
165 | ||
98591dbe GR |
166 | break; |
167 | case PMBUS_VIRT_RESET_TEMP_HISTORY: | |
168 | ret = pmbus_write_word_data(client, page, | |
169 | MAX34440_MFR_TEMPERATURE_PEAK, | |
dc91ad8e | 170 | 0x8000); |
590defe5 GR |
171 | if (!ret && data->id == max34446) |
172 | ret = pmbus_write_word_data(client, page, | |
173 | MAX34446_MFR_TEMPERATURE_AVG, 0); | |
98591dbe GR |
174 | break; |
175 | default: | |
176 | ret = -ENODATA; | |
177 | break; | |
178 | } | |
179 | return ret; | |
180 | } | |
181 | ||
2cfa6aed | 182 | static int max34440_read_byte_data(struct i2c_client *client, int page, int reg) |
a3eeb453 | 183 | { |
da8e48ab | 184 | int ret = 0; |
a3eeb453 GR |
185 | int mfg_status; |
186 | ||
da8e48ab | 187 | if (page >= 0) { |
43f33b6e | 188 | ret = pmbus_set_page(client, page, 0xff); |
da8e48ab GR |
189 | if (ret < 0) |
190 | return ret; | |
191 | } | |
a3eeb453 GR |
192 | |
193 | switch (reg) { | |
194 | case PMBUS_STATUS_IOUT: | |
43f33b6e | 195 | mfg_status = pmbus_read_word_data(client, 0, 0xff, |
a3eeb453 GR |
196 | PMBUS_STATUS_MFR_SPECIFIC); |
197 | if (mfg_status < 0) | |
198 | return mfg_status; | |
199 | if (mfg_status & MAX34440_STATUS_OC_WARN) | |
200 | ret |= PB_IOUT_OC_WARNING; | |
201 | if (mfg_status & MAX34440_STATUS_OC_FAULT) | |
202 | ret |= PB_IOUT_OC_FAULT; | |
203 | break; | |
204 | case PMBUS_STATUS_TEMPERATURE: | |
43f33b6e | 205 | mfg_status = pmbus_read_word_data(client, 0, 0xff, |
a3eeb453 GR |
206 | PMBUS_STATUS_MFR_SPECIFIC); |
207 | if (mfg_status < 0) | |
208 | return mfg_status; | |
209 | if (mfg_status & MAX34440_STATUS_OT_WARN) | |
210 | ret |= PB_TEMP_OT_WARNING; | |
211 | if (mfg_status & MAX34440_STATUS_OT_FAULT) | |
212 | ret |= PB_TEMP_OT_FAULT; | |
213 | break; | |
214 | default: | |
215 | ret = -ENODATA; | |
216 | break; | |
217 | } | |
218 | return ret; | |
219 | } | |
220 | ||
7a001dba KY |
221 | static int max34451_set_supported_funcs(struct i2c_client *client, |
222 | struct max34440_data *data) | |
223 | { | |
224 | /* | |
225 | * Each of the channel 0-15 can be configured to monitor the following | |
226 | * functions based on MFR_CHANNEL_CONFIG[5:0] | |
227 | * 0x10: Sequencing + voltage monitoring (only valid for PAGES 0–11) | |
228 | * 0x20: Voltage monitoring (no sequencing) | |
229 | * 0x21: Voltage read only | |
230 | * 0x22: Current monitoring | |
231 | * 0x23: Current read only | |
232 | * 0x30: General-purpose input active low | |
233 | * 0x34: General-purpose input active high | |
234 | * 0x00: Disabled | |
235 | */ | |
236 | ||
237 | int page, rv; | |
238 | ||
239 | for (page = 0; page < 16; page++) { | |
240 | rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); | |
241 | if (rv < 0) | |
242 | return rv; | |
243 | ||
244 | rv = i2c_smbus_read_word_data(client, | |
245 | MAX34451_MFR_CHANNEL_CONFIG); | |
246 | if (rv < 0) | |
247 | return rv; | |
248 | ||
249 | switch (rv & MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK) { | |
250 | case 0x10: | |
251 | case 0x20: | |
252 | data->info.func[page] = PMBUS_HAVE_VOUT | | |
253 | PMBUS_HAVE_STATUS_VOUT; | |
254 | break; | |
255 | case 0x21: | |
256 | data->info.func[page] = PMBUS_HAVE_VOUT; | |
257 | break; | |
258 | case 0x22: | |
259 | data->info.func[page] = PMBUS_HAVE_IOUT | | |
260 | PMBUS_HAVE_STATUS_IOUT; | |
261 | break; | |
262 | case 0x23: | |
263 | data->info.func[page] = PMBUS_HAVE_IOUT; | |
264 | break; | |
265 | default: | |
266 | break; | |
267 | } | |
268 | } | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
a3eeb453 GR |
273 | static struct pmbus_driver_info max34440_info[] = { |
274 | [max34440] = { | |
275 | .pages = 14, | |
1061d851 GR |
276 | .format[PSC_VOLTAGE_IN] = direct, |
277 | .format[PSC_VOLTAGE_OUT] = direct, | |
278 | .format[PSC_TEMPERATURE] = direct, | |
279 | .format[PSC_CURRENT_OUT] = direct, | |
a3eeb453 GR |
280 | .m[PSC_VOLTAGE_IN] = 1, |
281 | .b[PSC_VOLTAGE_IN] = 0, | |
282 | .R[PSC_VOLTAGE_IN] = 3, /* R = 0 in datasheet reflects mV */ | |
283 | .m[PSC_VOLTAGE_OUT] = 1, | |
284 | .b[PSC_VOLTAGE_OUT] = 0, | |
285 | .R[PSC_VOLTAGE_OUT] = 3, /* R = 0 in datasheet reflects mV */ | |
286 | .m[PSC_CURRENT_OUT] = 1, | |
287 | .b[PSC_CURRENT_OUT] = 0, | |
288 | .R[PSC_CURRENT_OUT] = 3, /* R = 0 in datasheet reflects mA */ | |
289 | .m[PSC_TEMPERATURE] = 1, | |
290 | .b[PSC_TEMPERATURE] = 0, | |
291 | .R[PSC_TEMPERATURE] = 2, | |
292 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
293 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
294 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
295 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
296 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
297 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
298 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
299 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
300 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
301 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
302 | .func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
303 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
304 | .func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
305 | .func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
306 | .func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
307 | .func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
308 | .func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
309 | .func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
310 | .func[12] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
311 | .func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
2cfa6aed | 312 | .read_byte_data = max34440_read_byte_data, |
98591dbe GR |
313 | .read_word_data = max34440_read_word_data, |
314 | .write_word_data = max34440_write_word_data, | |
a3eeb453 GR |
315 | }, |
316 | [max34441] = { | |
317 | .pages = 12, | |
1061d851 GR |
318 | .format[PSC_VOLTAGE_IN] = direct, |
319 | .format[PSC_VOLTAGE_OUT] = direct, | |
320 | .format[PSC_TEMPERATURE] = direct, | |
321 | .format[PSC_CURRENT_OUT] = direct, | |
322 | .format[PSC_FAN] = direct, | |
a3eeb453 GR |
323 | .m[PSC_VOLTAGE_IN] = 1, |
324 | .b[PSC_VOLTAGE_IN] = 0, | |
325 | .R[PSC_VOLTAGE_IN] = 3, | |
326 | .m[PSC_VOLTAGE_OUT] = 1, | |
327 | .b[PSC_VOLTAGE_OUT] = 0, | |
328 | .R[PSC_VOLTAGE_OUT] = 3, | |
329 | .m[PSC_CURRENT_OUT] = 1, | |
330 | .b[PSC_CURRENT_OUT] = 0, | |
331 | .R[PSC_CURRENT_OUT] = 3, | |
332 | .m[PSC_TEMPERATURE] = 1, | |
333 | .b[PSC_TEMPERATURE] = 0, | |
334 | .R[PSC_TEMPERATURE] = 2, | |
335 | .m[PSC_FAN] = 1, | |
336 | .b[PSC_FAN] = 0, | |
337 | .R[PSC_FAN] = 0, | |
338 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
339 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
340 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
341 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
342 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
343 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
344 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
345 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
346 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
347 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
348 | .func[5] = PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12, | |
349 | .func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
350 | .func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
351 | .func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
352 | .func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
353 | .func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
354 | .func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
2cfa6aed | 355 | .read_byte_data = max34440_read_byte_data, |
98591dbe GR |
356 | .read_word_data = max34440_read_word_data, |
357 | .write_word_data = max34440_write_word_data, | |
a3eeb453 | 358 | }, |
590defe5 GR |
359 | [max34446] = { |
360 | .pages = 7, | |
361 | .format[PSC_VOLTAGE_IN] = direct, | |
362 | .format[PSC_VOLTAGE_OUT] = direct, | |
363 | .format[PSC_TEMPERATURE] = direct, | |
364 | .format[PSC_CURRENT_OUT] = direct, | |
365 | .format[PSC_POWER] = direct, | |
366 | .m[PSC_VOLTAGE_IN] = 1, | |
367 | .b[PSC_VOLTAGE_IN] = 0, | |
368 | .R[PSC_VOLTAGE_IN] = 3, | |
369 | .m[PSC_VOLTAGE_OUT] = 1, | |
370 | .b[PSC_VOLTAGE_OUT] = 0, | |
371 | .R[PSC_VOLTAGE_OUT] = 3, | |
372 | .m[PSC_CURRENT_OUT] = 1, | |
373 | .b[PSC_CURRENT_OUT] = 0, | |
374 | .R[PSC_CURRENT_OUT] = 3, | |
375 | .m[PSC_POWER] = 1, | |
376 | .b[PSC_POWER] = 0, | |
377 | .R[PSC_POWER] = 3, | |
378 | .m[PSC_TEMPERATURE] = 1, | |
379 | .b[PSC_TEMPERATURE] = 0, | |
380 | .R[PSC_TEMPERATURE] = 2, | |
381 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
382 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT, | |
383 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
384 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
385 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
386 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT, | |
387 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
388 | | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, | |
389 | .func[4] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
390 | .func[5] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
391 | .func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
392 | .read_byte_data = max34440_read_byte_data, | |
393 | .read_word_data = max34440_read_word_data, | |
394 | .write_word_data = max34440_write_word_data, | |
395 | }, | |
7a001dba KY |
396 | [max34451] = { |
397 | .pages = 21, | |
398 | .format[PSC_VOLTAGE_OUT] = direct, | |
399 | .format[PSC_TEMPERATURE] = direct, | |
400 | .format[PSC_CURRENT_OUT] = direct, | |
401 | .m[PSC_VOLTAGE_OUT] = 1, | |
402 | .b[PSC_VOLTAGE_OUT] = 0, | |
403 | .R[PSC_VOLTAGE_OUT] = 3, | |
404 | .m[PSC_CURRENT_OUT] = 1, | |
405 | .b[PSC_CURRENT_OUT] = 0, | |
406 | .R[PSC_CURRENT_OUT] = 2, | |
407 | .m[PSC_TEMPERATURE] = 1, | |
408 | .b[PSC_TEMPERATURE] = 0, | |
409 | .R[PSC_TEMPERATURE] = 2, | |
410 | /* func 0-15 is set dynamically before probing */ | |
411 | .func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
412 | .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
413 | .func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
414 | .func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
415 | .func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
7a001dba KY |
416 | .read_word_data = max34440_read_word_data, |
417 | .write_word_data = max34440_write_word_data, | |
418 | }, | |
50115ac9 GR |
419 | [max34460] = { |
420 | .pages = 18, | |
421 | .format[PSC_VOLTAGE_OUT] = direct, | |
422 | .format[PSC_TEMPERATURE] = direct, | |
423 | .m[PSC_VOLTAGE_OUT] = 1, | |
424 | .b[PSC_VOLTAGE_OUT] = 0, | |
425 | .R[PSC_VOLTAGE_OUT] = 3, | |
426 | .m[PSC_TEMPERATURE] = 1, | |
427 | .b[PSC_TEMPERATURE] = 0, | |
428 | .R[PSC_TEMPERATURE] = 2, | |
429 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
430 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
431 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
432 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
433 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
434 | .func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
435 | .func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
436 | .func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
437 | .func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
438 | .func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
439 | .func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
440 | .func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
441 | .func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
442 | .func[14] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
443 | .func[15] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
444 | .func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
445 | .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
50115ac9 GR |
446 | .read_word_data = max34440_read_word_data, |
447 | .write_word_data = max34440_write_word_data, | |
448 | }, | |
449 | [max34461] = { | |
450 | .pages = 23, | |
451 | .format[PSC_VOLTAGE_OUT] = direct, | |
452 | .format[PSC_TEMPERATURE] = direct, | |
453 | .m[PSC_VOLTAGE_OUT] = 1, | |
454 | .b[PSC_VOLTAGE_OUT] = 0, | |
455 | .R[PSC_VOLTAGE_OUT] = 3, | |
456 | .m[PSC_TEMPERATURE] = 1, | |
457 | .b[PSC_TEMPERATURE] = 0, | |
458 | .R[PSC_TEMPERATURE] = 2, | |
459 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
460 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
461 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
462 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
463 | .func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
464 | .func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
465 | .func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
466 | .func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
467 | .func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
468 | .func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
469 | .func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
470 | .func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
471 | .func[12] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
472 | .func[13] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
473 | .func[14] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
474 | .func[15] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
475 | /* page 16 is reserved */ | |
476 | .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
477 | .func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
478 | .func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
479 | .func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
480 | .func[21] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, | |
50115ac9 GR |
481 | .read_word_data = max34440_read_word_data, |
482 | .write_word_data = max34440_write_word_data, | |
483 | }, | |
a3eeb453 GR |
484 | }; |
485 | ||
dd431939 | 486 | static int max34440_probe(struct i2c_client *client) |
a3eeb453 | 487 | { |
590defe5 | 488 | struct max34440_data *data; |
7a001dba | 489 | int rv; |
590defe5 GR |
490 | |
491 | data = devm_kzalloc(&client->dev, sizeof(struct max34440_data), | |
492 | GFP_KERNEL); | |
493 | if (!data) | |
494 | return -ENOMEM; | |
dd431939 SK |
495 | data->id = i2c_match_id(max34440_id, client)->driver_data; |
496 | data->info = max34440_info[data->id]; | |
590defe5 | 497 | |
7a001dba KY |
498 | if (data->id == max34451) { |
499 | rv = max34451_set_supported_funcs(client, data); | |
500 | if (rv) | |
501 | return rv; | |
502 | } | |
503 | ||
dd431939 | 504 | return pmbus_do_probe(client, &data->info); |
a3eeb453 GR |
505 | } |
506 | ||
a3eeb453 GR |
507 | static const struct i2c_device_id max34440_id[] = { |
508 | {"max34440", max34440}, | |
509 | {"max34441", max34441}, | |
590defe5 | 510 | {"max34446", max34446}, |
7a001dba | 511 | {"max34451", max34451}, |
50115ac9 GR |
512 | {"max34460", max34460}, |
513 | {"max34461", max34461}, | |
a3eeb453 GR |
514 | {} |
515 | }; | |
a3eeb453 GR |
516 | MODULE_DEVICE_TABLE(i2c, max34440_id); |
517 | ||
518 | /* This is the driver that will be inserted */ | |
519 | static struct i2c_driver max34440_driver = { | |
520 | .driver = { | |
521 | .name = "max34440", | |
522 | }, | |
dd431939 | 523 | .probe_new = max34440_probe, |
a3eeb453 GR |
524 | .id_table = max34440_id, |
525 | }; | |
526 | ||
f0967eea | 527 | module_i2c_driver(max34440_driver); |
a3eeb453 GR |
528 | |
529 | MODULE_AUTHOR("Guenter Roeck"); | |
530 | MODULE_DESCRIPTION("PMBus driver for Maxim MAX34440/MAX34441"); | |
531 | MODULE_LICENSE("GPL"); | |
b94ca77e | 532 | MODULE_IMPORT_NS(PMBUS); |