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83f7649c GR |
1 | /* |
2 | * Hardware monitoring driver for Analog Devices ADM1275 Hot-Swap Controller | |
3 | * and Digital Power Monitor | |
4 | * | |
5 | * Copyright (c) 2011 Ericsson AB. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | */ | |
17 | ||
18 | #include <linux/kernel.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/err.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/i2c.h> | |
99b41608 | 24 | #include <linux/bitops.h> |
83f7649c GR |
25 | #include "pmbus.h" |
26 | ||
709066ac | 27 | enum chips { adm1075, adm1275, adm1276, adm1278, adm1293, adm1294 }; |
68a40382 GR |
28 | |
29 | #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0) | |
30 | #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5) | |
31 | #define ADM1293_MFR_STATUS_VAUX_OV_WARN BIT(6) | |
5cf231a3 | 32 | |
c576e30c GR |
33 | #define ADM1275_PEAK_IOUT 0xd0 |
34 | #define ADM1275_PEAK_VIN 0xd1 | |
35 | #define ADM1275_PEAK_VOUT 0xd2 | |
83f7649c GR |
36 | #define ADM1275_PMON_CONFIG 0xd4 |
37 | ||
99b41608 GR |
38 | #define ADM1275_VIN_VOUT_SELECT BIT(6) |
39 | #define ADM1275_VRANGE BIT(5) | |
40 | #define ADM1075_IRANGE_50 BIT(4) | |
41 | #define ADM1075_IRANGE_25 BIT(3) | |
42 | #define ADM1075_IRANGE_MASK (BIT(3) | BIT(4)) | |
83f7649c | 43 | |
709066ac GR |
44 | #define ADM1278_TEMP1_EN BIT(3) |
45 | #define ADM1278_VIN_EN BIT(2) | |
46 | #define ADM1278_VOUT_EN BIT(1) | |
47 | ||
68a40382 GR |
48 | #define ADM1293_IRANGE_25 0 |
49 | #define ADM1293_IRANGE_50 BIT(6) | |
50 | #define ADM1293_IRANGE_100 BIT(7) | |
51 | #define ADM1293_IRANGE_200 (BIT(6) | BIT(7)) | |
52 | #define ADM1293_IRANGE_MASK (BIT(6) | BIT(7)) | |
53 | ||
54 | #define ADM1293_VIN_SEL_012 BIT(2) | |
55 | #define ADM1293_VIN_SEL_074 BIT(3) | |
56 | #define ADM1293_VIN_SEL_210 (BIT(2) | BIT(3)) | |
57 | #define ADM1293_VIN_SEL_MASK (BIT(2) | BIT(3)) | |
58 | ||
59 | #define ADM1293_VAUX_EN BIT(1) | |
60 | ||
709066ac | 61 | #define ADM1278_PEAK_TEMP 0xd7 |
c5e67636 GR |
62 | #define ADM1275_IOUT_WARN2_LIMIT 0xd7 |
63 | #define ADM1275_DEVICE_CONFIG 0xd8 | |
64 | ||
99b41608 | 65 | #define ADM1275_IOUT_WARN2_SELECT BIT(4) |
c5e67636 | 66 | |
5cf231a3 | 67 | #define ADM1276_PEAK_PIN 0xda |
92711269 GR |
68 | #define ADM1075_READ_VAUX 0xdd |
69 | #define ADM1075_VAUX_OV_WARN_LIMIT 0xde | |
70 | #define ADM1075_VAUX_UV_WARN_LIMIT 0xdf | |
68a40382 GR |
71 | #define ADM1293_IOUT_MIN 0xe3 |
72 | #define ADM1293_PIN_MIN 0xe4 | |
92711269 GR |
73 | #define ADM1075_VAUX_STATUS 0xf6 |
74 | ||
99b41608 GR |
75 | #define ADM1075_VAUX_OV_WARN BIT(7) |
76 | #define ADM1075_VAUX_UV_WARN BIT(6) | |
92711269 | 77 | |
c5e67636 | 78 | struct adm1275_data { |
5cf231a3 | 79 | int id; |
c5e67636 | 80 | bool have_oc_fault; |
9048539b GR |
81 | bool have_uc_fault; |
82 | bool have_vout; | |
83 | bool have_vaux_status; | |
68a40382 GR |
84 | bool have_mfr_vaux_status; |
85 | bool have_iout_min; | |
86 | bool have_pin_min; | |
9048539b | 87 | bool have_pin_max; |
709066ac | 88 | bool have_temp_max; |
c5e67636 GR |
89 | struct pmbus_driver_info info; |
90 | }; | |
91 | ||
92 | #define to_adm1275_data(x) container_of(x, struct adm1275_data, info) | |
93 | ||
904b296f GR |
94 | struct coefficients { |
95 | s16 m; | |
96 | s16 b; | |
97 | s16 R; | |
98 | }; | |
99 | ||
100 | static const struct coefficients adm1075_coefficients[] = { | |
101 | [0] = { 27169, 0, -1 }, /* voltage */ | |
102 | [1] = { 806, 20475, -1 }, /* current, irange25 */ | |
103 | [2] = { 404, 20475, -1 }, /* current, irange50 */ | |
104 | [3] = { 0, -1, 8549 }, /* power, irange25 */ | |
105 | [4] = { 0, -1, 4279 }, /* power, irange50 */ | |
106 | }; | |
107 | ||
108 | static const struct coefficients adm1275_coefficients[] = { | |
109 | [0] = { 19199, 0, -2 }, /* voltage, vrange set */ | |
110 | [1] = { 6720, 0, -1 }, /* voltage, vrange not set */ | |
111 | [2] = { 807, 20475, -1 }, /* current */ | |
112 | }; | |
113 | ||
114 | static const struct coefficients adm1276_coefficients[] = { | |
115 | [0] = { 19199, 0, -2 }, /* voltage, vrange set */ | |
116 | [1] = { 6720, 0, -1 }, /* voltage, vrange not set */ | |
117 | [2] = { 807, 20475, -1 }, /* current */ | |
118 | [3] = { 6043, 0, -2 }, /* power, vrange set */ | |
119 | [4] = { 2115, 0, -1 }, /* power, vrange not set */ | |
120 | }; | |
121 | ||
709066ac GR |
122 | static const struct coefficients adm1278_coefficients[] = { |
123 | [0] = { 19599, 0, -2 }, /* voltage */ | |
124 | [1] = { 800, 20475, -1 }, /* current */ | |
125 | [2] = { 6123, 0, -2 }, /* power */ | |
126 | [3] = { 42, 31880, -1 }, /* temperature */ | |
127 | }; | |
128 | ||
68a40382 GR |
129 | static const struct coefficients adm1293_coefficients[] = { |
130 | [0] = { 3333, -1, 0 }, /* voltage, vrange 1.2V */ | |
131 | [1] = { 5552, -5, -1 }, /* voltage, vrange 7.4V */ | |
132 | [2] = { 19604, -50, -2 }, /* voltage, vrange 21V */ | |
133 | [3] = { 8000, -100, -2 }, /* current, irange25 */ | |
134 | [4] = { 4000, -100, -2 }, /* current, irange50 */ | |
135 | [5] = { 20000, -1000, -3 }, /* current, irange100 */ | |
136 | [6] = { 10000, -1000, -3 }, /* current, irange200 */ | |
137 | [7] = { 10417, 0, -1 }, /* power, 1.2V, irange25 */ | |
138 | [8] = { 5208, 0, -1 }, /* power, 1.2V, irange50 */ | |
139 | [9] = { 26042, 0, -2 }, /* power, 1.2V, irange100 */ | |
140 | [10] = { 13021, 0, -2 }, /* power, 1.2V, irange200 */ | |
141 | [11] = { 17351, 0, -2 }, /* power, 7.4V, irange25 */ | |
142 | [12] = { 8676, 0, -2 }, /* power, 7.4V, irange50 */ | |
143 | [13] = { 4338, 0, -2 }, /* power, 7.4V, irange100 */ | |
144 | [14] = { 21689, 0, -3 }, /* power, 7.4V, irange200 */ | |
145 | [15] = { 6126, 0, -2 }, /* power, 21V, irange25 */ | |
146 | [16] = { 30631, 0, -3 }, /* power, 21V, irange50 */ | |
147 | [17] = { 15316, 0, -3 }, /* power, 21V, irange100 */ | |
148 | [18] = { 7658, 0, -3 }, /* power, 21V, irange200 */ | |
149 | }; | |
150 | ||
c576e30c GR |
151 | static int adm1275_read_word_data(struct i2c_client *client, int page, int reg) |
152 | { | |
c5e67636 GR |
153 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); |
154 | const struct adm1275_data *data = to_adm1275_data(info); | |
5cf231a3 | 155 | int ret = 0; |
c576e30c GR |
156 | |
157 | if (page) | |
c5e67636 | 158 | return -ENXIO; |
c576e30c GR |
159 | |
160 | switch (reg) { | |
c5e67636 | 161 | case PMBUS_IOUT_UC_FAULT_LIMIT: |
9048539b GR |
162 | if (!data->have_uc_fault) |
163 | return -ENXIO; | |
c5e67636 GR |
164 | ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT); |
165 | break; | |
166 | case PMBUS_IOUT_OC_FAULT_LIMIT: | |
9048539b GR |
167 | if (!data->have_oc_fault) |
168 | return -ENXIO; | |
c5e67636 GR |
169 | ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT); |
170 | break; | |
92711269 | 171 | case PMBUS_VOUT_OV_WARN_LIMIT: |
9048539b GR |
172 | if (data->have_vout) |
173 | return -ENODATA; | |
92711269 GR |
174 | ret = pmbus_read_word_data(client, 0, |
175 | ADM1075_VAUX_OV_WARN_LIMIT); | |
176 | break; | |
177 | case PMBUS_VOUT_UV_WARN_LIMIT: | |
9048539b GR |
178 | if (data->have_vout) |
179 | return -ENODATA; | |
92711269 GR |
180 | ret = pmbus_read_word_data(client, 0, |
181 | ADM1075_VAUX_UV_WARN_LIMIT); | |
182 | break; | |
183 | case PMBUS_READ_VOUT: | |
9048539b GR |
184 | if (data->have_vout) |
185 | return -ENODATA; | |
92711269 GR |
186 | ret = pmbus_read_word_data(client, 0, ADM1075_READ_VAUX); |
187 | break; | |
68a40382 GR |
188 | case PMBUS_VIRT_READ_IOUT_MIN: |
189 | if (!data->have_iout_min) | |
190 | return -ENXIO; | |
191 | ret = pmbus_read_word_data(client, 0, ADM1293_IOUT_MIN); | |
192 | break; | |
c576e30c GR |
193 | case PMBUS_VIRT_READ_IOUT_MAX: |
194 | ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_IOUT); | |
195 | break; | |
196 | case PMBUS_VIRT_READ_VOUT_MAX: | |
197 | ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VOUT); | |
198 | break; | |
199 | case PMBUS_VIRT_READ_VIN_MAX: | |
200 | ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN); | |
201 | break; | |
68a40382 GR |
202 | case PMBUS_VIRT_READ_PIN_MIN: |
203 | if (!data->have_pin_min) | |
204 | return -ENXIO; | |
205 | ret = pmbus_read_word_data(client, 0, ADM1293_PIN_MIN); | |
206 | break; | |
5cf231a3 | 207 | case PMBUS_VIRT_READ_PIN_MAX: |
9048539b GR |
208 | if (!data->have_pin_max) |
209 | return -ENXIO; | |
5cf231a3 GR |
210 | ret = pmbus_read_word_data(client, 0, ADM1276_PEAK_PIN); |
211 | break; | |
709066ac GR |
212 | case PMBUS_VIRT_READ_TEMP_MAX: |
213 | if (!data->have_temp_max) | |
214 | return -ENXIO; | |
215 | ret = pmbus_read_word_data(client, 0, ADM1278_PEAK_TEMP); | |
216 | break; | |
c576e30c GR |
217 | case PMBUS_VIRT_RESET_IOUT_HISTORY: |
218 | case PMBUS_VIRT_RESET_VOUT_HISTORY: | |
219 | case PMBUS_VIRT_RESET_VIN_HISTORY: | |
5cf231a3 GR |
220 | break; |
221 | case PMBUS_VIRT_RESET_PIN_HISTORY: | |
9048539b GR |
222 | if (!data->have_pin_max) |
223 | return -ENXIO; | |
c576e30c | 224 | break; |
709066ac GR |
225 | case PMBUS_VIRT_RESET_TEMP_HISTORY: |
226 | if (!data->have_temp_max) | |
227 | return -ENXIO; | |
228 | break; | |
c576e30c GR |
229 | default: |
230 | ret = -ENODATA; | |
231 | break; | |
232 | } | |
233 | return ret; | |
234 | } | |
235 | ||
236 | static int adm1275_write_word_data(struct i2c_client *client, int page, int reg, | |
237 | u16 word) | |
238 | { | |
68a40382 GR |
239 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); |
240 | const struct adm1275_data *data = to_adm1275_data(info); | |
c576e30c GR |
241 | int ret; |
242 | ||
243 | if (page) | |
c5e67636 | 244 | return -ENXIO; |
c576e30c GR |
245 | |
246 | switch (reg) { | |
c5e67636 GR |
247 | case PMBUS_IOUT_UC_FAULT_LIMIT: |
248 | case PMBUS_IOUT_OC_FAULT_LIMIT: | |
249 | ret = pmbus_write_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT, | |
250 | word); | |
251 | break; | |
c576e30c GR |
252 | case PMBUS_VIRT_RESET_IOUT_HISTORY: |
253 | ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0); | |
68a40382 GR |
254 | if (!ret && data->have_iout_min) |
255 | ret = pmbus_write_word_data(client, 0, | |
256 | ADM1293_IOUT_MIN, 0); | |
c576e30c GR |
257 | break; |
258 | case PMBUS_VIRT_RESET_VOUT_HISTORY: | |
259 | ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0); | |
260 | break; | |
261 | case PMBUS_VIRT_RESET_VIN_HISTORY: | |
262 | ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0); | |
263 | break; | |
5cf231a3 GR |
264 | case PMBUS_VIRT_RESET_PIN_HISTORY: |
265 | ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0); | |
68a40382 GR |
266 | if (!ret && data->have_pin_min) |
267 | ret = pmbus_write_word_data(client, 0, | |
268 | ADM1293_PIN_MIN, 0); | |
5cf231a3 | 269 | break; |
709066ac GR |
270 | case PMBUS_VIRT_RESET_TEMP_HISTORY: |
271 | ret = pmbus_write_word_data(client, 0, ADM1278_PEAK_TEMP, 0); | |
272 | break; | |
c576e30c GR |
273 | default: |
274 | ret = -ENODATA; | |
275 | break; | |
276 | } | |
277 | return ret; | |
278 | } | |
279 | ||
c5e67636 GR |
280 | static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg) |
281 | { | |
282 | const struct pmbus_driver_info *info = pmbus_get_driver_info(client); | |
283 | const struct adm1275_data *data = to_adm1275_data(info); | |
284 | int mfr_status, ret; | |
285 | ||
da8e48ab | 286 | if (page > 0) |
c5e67636 GR |
287 | return -ENXIO; |
288 | ||
289 | switch (reg) { | |
290 | case PMBUS_STATUS_IOUT: | |
291 | ret = pmbus_read_byte_data(client, page, PMBUS_STATUS_IOUT); | |
292 | if (ret < 0) | |
293 | break; | |
9048539b GR |
294 | if (!data->have_oc_fault && !data->have_uc_fault) |
295 | break; | |
c5e67636 GR |
296 | mfr_status = pmbus_read_byte_data(client, page, |
297 | PMBUS_STATUS_MFR_SPECIFIC); | |
9048539b GR |
298 | if (mfr_status < 0) |
299 | return mfr_status; | |
c5e67636 GR |
300 | if (mfr_status & ADM1275_MFR_STATUS_IOUT_WARN2) { |
301 | ret |= data->have_oc_fault ? | |
302 | PB_IOUT_OC_FAULT : PB_IOUT_UC_FAULT; | |
303 | } | |
304 | break; | |
92711269 | 305 | case PMBUS_STATUS_VOUT: |
9048539b GR |
306 | if (data->have_vout) |
307 | return -ENODATA; | |
92711269 | 308 | ret = 0; |
9048539b GR |
309 | if (data->have_vaux_status) { |
310 | mfr_status = pmbus_read_byte_data(client, 0, | |
311 | ADM1075_VAUX_STATUS); | |
312 | if (mfr_status < 0) | |
313 | return mfr_status; | |
314 | if (mfr_status & ADM1075_VAUX_OV_WARN) | |
315 | ret |= PB_VOLTAGE_OV_WARNING; | |
316 | if (mfr_status & ADM1075_VAUX_UV_WARN) | |
317 | ret |= PB_VOLTAGE_UV_WARNING; | |
68a40382 GR |
318 | } else if (data->have_mfr_vaux_status) { |
319 | mfr_status = pmbus_read_byte_data(client, page, | |
320 | PMBUS_STATUS_MFR_SPECIFIC); | |
321 | if (mfr_status < 0) | |
322 | return mfr_status; | |
323 | if (mfr_status & ADM1293_MFR_STATUS_VAUX_OV_WARN) | |
324 | ret |= PB_VOLTAGE_OV_WARNING; | |
325 | if (mfr_status & ADM1293_MFR_STATUS_VAUX_UV_WARN) | |
326 | ret |= PB_VOLTAGE_UV_WARNING; | |
9048539b | 327 | } |
92711269 | 328 | break; |
c5e67636 GR |
329 | default: |
330 | ret = -ENODATA; | |
331 | break; | |
332 | } | |
333 | return ret; | |
334 | } | |
335 | ||
87102808 | 336 | static const struct i2c_device_id adm1275_id[] = { |
92711269 | 337 | { "adm1075", adm1075 }, |
87102808 GR |
338 | { "adm1275", adm1275 }, |
339 | { "adm1276", adm1276 }, | |
709066ac | 340 | { "adm1278", adm1278 }, |
68a40382 GR |
341 | { "adm1293", adm1293 }, |
342 | { "adm1294", adm1294 }, | |
87102808 GR |
343 | { } |
344 | }; | |
345 | MODULE_DEVICE_TABLE(i2c, adm1275_id); | |
346 | ||
83f7649c GR |
347 | static int adm1275_probe(struct i2c_client *client, |
348 | const struct i2c_device_id *id) | |
349 | { | |
87102808 | 350 | u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1]; |
c5e67636 | 351 | int config, device_config; |
3b33ca41 | 352 | int ret; |
83f7649c | 353 | struct pmbus_driver_info *info; |
c5e67636 | 354 | struct adm1275_data *data; |
87102808 | 355 | const struct i2c_device_id *mid; |
904b296f | 356 | const struct coefficients *coefficients; |
68a40382 | 357 | int vindex = -1, voindex = -1, cindex = -1, pindex = -1; |
709066ac | 358 | int tindex = -1; |
83f7649c GR |
359 | |
360 | if (!i2c_check_functionality(client->adapter, | |
87102808 GR |
361 | I2C_FUNC_SMBUS_READ_BYTE_DATA |
362 | | I2C_FUNC_SMBUS_BLOCK_DATA)) | |
83f7649c GR |
363 | return -ENODEV; |
364 | ||
87102808 GR |
365 | ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, block_buffer); |
366 | if (ret < 0) { | |
367 | dev_err(&client->dev, "Failed to read Manufacturer ID\n"); | |
368 | return ret; | |
369 | } | |
370 | if (ret != 3 || strncmp(block_buffer, "ADI", 3)) { | |
371 | dev_err(&client->dev, "Unsupported Manufacturer ID\n"); | |
372 | return -ENODEV; | |
373 | } | |
83f7649c | 374 | |
87102808 GR |
375 | ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer); |
376 | if (ret < 0) { | |
377 | dev_err(&client->dev, "Failed to read Manufacturer Model\n"); | |
378 | return ret; | |
379 | } | |
380 | for (mid = adm1275_id; mid->name[0]; mid++) { | |
381 | if (!strncasecmp(mid->name, block_buffer, strlen(mid->name))) | |
382 | break; | |
383 | } | |
384 | if (!mid->name[0]) { | |
385 | dev_err(&client->dev, "Unsupported device\n"); | |
386 | return -ENODEV; | |
3b33ca41 | 387 | } |
83f7649c | 388 | |
87102808 GR |
389 | if (id->driver_data != mid->driver_data) |
390 | dev_notice(&client->dev, | |
391 | "Device mismatch: Configured %s, detected %s\n", | |
392 | id->name, mid->name); | |
393 | ||
394 | config = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG); | |
395 | if (config < 0) | |
396 | return config; | |
397 | ||
c5e67636 | 398 | device_config = i2c_smbus_read_byte_data(client, ADM1275_DEVICE_CONFIG); |
87102808 GR |
399 | if (device_config < 0) |
400 | return device_config; | |
401 | ||
8b313ca7 GR |
402 | data = devm_kzalloc(&client->dev, sizeof(struct adm1275_data), |
403 | GFP_KERNEL); | |
87102808 GR |
404 | if (!data) |
405 | return -ENOMEM; | |
406 | ||
407 | data->id = mid->driver_data; | |
c5e67636 GR |
408 | |
409 | info = &data->info; | |
410 | ||
83f7649c | 411 | info->pages = 1; |
1061d851 GR |
412 | info->format[PSC_VOLTAGE_IN] = direct; |
413 | info->format[PSC_VOLTAGE_OUT] = direct; | |
414 | info->format[PSC_CURRENT_OUT] = direct; | |
904b296f | 415 | info->format[PSC_POWER] = direct; |
709066ac | 416 | info->format[PSC_TEMPERATURE] = direct; |
83f7649c GR |
417 | info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT; |
418 | ||
c576e30c | 419 | info->read_word_data = adm1275_read_word_data; |
c5e67636 | 420 | info->read_byte_data = adm1275_read_byte_data; |
c576e30c GR |
421 | info->write_word_data = adm1275_write_word_data; |
422 | ||
87102808 | 423 | switch (data->id) { |
92711269 | 424 | case adm1075: |
9048539b GR |
425 | if (device_config & ADM1275_IOUT_WARN2_SELECT) |
426 | data->have_oc_fault = true; | |
427 | else | |
428 | data->have_uc_fault = true; | |
429 | data->have_pin_max = true; | |
430 | data->have_vaux_status = true; | |
431 | ||
904b296f GR |
432 | coefficients = adm1075_coefficients; |
433 | vindex = 0; | |
92711269 GR |
434 | switch (config & ADM1075_IRANGE_MASK) { |
435 | case ADM1075_IRANGE_25: | |
904b296f GR |
436 | cindex = 1; |
437 | pindex = 3; | |
92711269 GR |
438 | break; |
439 | case ADM1075_IRANGE_50: | |
904b296f GR |
440 | cindex = 2; |
441 | pindex = 4; | |
92711269 GR |
442 | break; |
443 | default: | |
444 | dev_err(&client->dev, "Invalid input current range"); | |
92711269 GR |
445 | break; |
446 | } | |
904b296f | 447 | |
92711269 GR |
448 | info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN |
449 | | PMBUS_HAVE_STATUS_INPUT; | |
450 | if (config & ADM1275_VIN_VOUT_SELECT) | |
451 | info->func[0] |= | |
452 | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; | |
453 | break; | |
5cf231a3 | 454 | case adm1275: |
9048539b GR |
455 | if (device_config & ADM1275_IOUT_WARN2_SELECT) |
456 | data->have_oc_fault = true; | |
457 | else | |
458 | data->have_uc_fault = true; | |
459 | data->have_vout = true; | |
460 | ||
904b296f GR |
461 | coefficients = adm1275_coefficients; |
462 | vindex = (config & ADM1275_VRANGE) ? 0 : 1; | |
463 | cindex = 2; | |
464 | ||
5cf231a3 GR |
465 | if (config & ADM1275_VIN_VOUT_SELECT) |
466 | info->func[0] |= | |
467 | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; | |
468 | else | |
469 | info->func[0] |= | |
470 | PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT; | |
471 | break; | |
472 | case adm1276: | |
9048539b GR |
473 | if (device_config & ADM1275_IOUT_WARN2_SELECT) |
474 | data->have_oc_fault = true; | |
475 | else | |
476 | data->have_uc_fault = true; | |
477 | data->have_vout = true; | |
478 | data->have_pin_max = true; | |
479 | ||
904b296f GR |
480 | coefficients = adm1276_coefficients; |
481 | vindex = (config & ADM1275_VRANGE) ? 0 : 1; | |
482 | cindex = 2; | |
483 | pindex = (config & ADM1275_VRANGE) ? 3 : 4; | |
484 | ||
5cf231a3 GR |
485 | info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN |
486 | | PMBUS_HAVE_STATUS_INPUT; | |
487 | if (config & ADM1275_VIN_VOUT_SELECT) | |
488 | info->func[0] |= | |
489 | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; | |
5cf231a3 | 490 | break; |
709066ac GR |
491 | case adm1278: |
492 | data->have_vout = true; | |
493 | data->have_pin_max = true; | |
494 | data->have_temp_max = true; | |
495 | ||
496 | coefficients = adm1278_coefficients; | |
497 | vindex = 0; | |
498 | cindex = 1; | |
499 | pindex = 2; | |
500 | tindex = 3; | |
501 | ||
502 | info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT; | |
503 | if (config & ADM1278_TEMP1_EN) | |
504 | info->func[0] |= | |
505 | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; | |
506 | if (config & ADM1278_VIN_EN) | |
507 | info->func[0] |= PMBUS_HAVE_VIN; | |
508 | if (config & ADM1278_VOUT_EN) | |
509 | info->func[0] |= | |
510 | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; | |
511 | break; | |
68a40382 GR |
512 | case adm1293: |
513 | case adm1294: | |
514 | data->have_iout_min = true; | |
515 | data->have_pin_min = true; | |
516 | data->have_pin_max = true; | |
517 | data->have_mfr_vaux_status = true; | |
518 | ||
519 | coefficients = adm1293_coefficients; | |
520 | ||
521 | voindex = 0; | |
522 | switch (config & ADM1293_VIN_SEL_MASK) { | |
523 | case ADM1293_VIN_SEL_012: /* 1.2V */ | |
524 | vindex = 0; | |
525 | break; | |
526 | case ADM1293_VIN_SEL_074: /* 7.4V */ | |
527 | vindex = 1; | |
528 | break; | |
529 | case ADM1293_VIN_SEL_210: /* 21V */ | |
530 | vindex = 2; | |
531 | break; | |
532 | default: /* disabled */ | |
533 | break; | |
534 | } | |
535 | ||
536 | switch (config & ADM1293_IRANGE_MASK) { | |
537 | case ADM1293_IRANGE_25: | |
538 | cindex = 3; | |
539 | break; | |
540 | case ADM1293_IRANGE_50: | |
541 | cindex = 4; | |
542 | break; | |
543 | case ADM1293_IRANGE_100: | |
544 | cindex = 5; | |
545 | break; | |
546 | case ADM1293_IRANGE_200: | |
547 | cindex = 6; | |
548 | break; | |
549 | } | |
550 | ||
551 | if (vindex >= 0) | |
552 | pindex = 7 + vindex * 4 + (cindex - 3); | |
553 | ||
554 | if (config & ADM1293_VAUX_EN) | |
555 | info->func[0] |= | |
556 | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; | |
557 | ||
558 | info->func[0] |= PMBUS_HAVE_PIN | | |
559 | PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT; | |
560 | ||
561 | break; | |
904b296f GR |
562 | default: |
563 | dev_err(&client->dev, "Unsupported device\n"); | |
564 | return -ENODEV; | |
565 | } | |
68a40382 GR |
566 | |
567 | if (voindex < 0) | |
568 | voindex = vindex; | |
904b296f GR |
569 | if (vindex >= 0) { |
570 | info->m[PSC_VOLTAGE_IN] = coefficients[vindex].m; | |
571 | info->b[PSC_VOLTAGE_IN] = coefficients[vindex].b; | |
572 | info->R[PSC_VOLTAGE_IN] = coefficients[vindex].R; | |
68a40382 GR |
573 | } |
574 | if (voindex >= 0) { | |
575 | info->m[PSC_VOLTAGE_OUT] = coefficients[voindex].m; | |
576 | info->b[PSC_VOLTAGE_OUT] = coefficients[voindex].b; | |
577 | info->R[PSC_VOLTAGE_OUT] = coefficients[voindex].R; | |
904b296f GR |
578 | } |
579 | if (cindex >= 0) { | |
580 | info->m[PSC_CURRENT_OUT] = coefficients[cindex].m; | |
581 | info->b[PSC_CURRENT_OUT] = coefficients[cindex].b; | |
582 | info->R[PSC_CURRENT_OUT] = coefficients[cindex].R; | |
583 | } | |
584 | if (pindex >= 0) { | |
585 | info->m[PSC_POWER] = coefficients[pindex].m; | |
586 | info->b[PSC_POWER] = coefficients[pindex].b; | |
587 | info->R[PSC_POWER] = coefficients[pindex].R; | |
5cf231a3 | 588 | } |
709066ac GR |
589 | if (tindex >= 0) { |
590 | info->m[PSC_TEMPERATURE] = coefficients[tindex].m; | |
591 | info->b[PSC_TEMPERATURE] = coefficients[tindex].b; | |
592 | info->R[PSC_TEMPERATURE] = coefficients[tindex].R; | |
593 | } | |
83f7649c | 594 | |
8b313ca7 | 595 | return pmbus_do_probe(client, id, info); |
83f7649c GR |
596 | } |
597 | ||
83f7649c GR |
598 | static struct i2c_driver adm1275_driver = { |
599 | .driver = { | |
600 | .name = "adm1275", | |
601 | }, | |
602 | .probe = adm1275_probe, | |
dd285ad7 | 603 | .remove = pmbus_do_remove, |
83f7649c GR |
604 | .id_table = adm1275_id, |
605 | }; | |
606 | ||
f0967eea | 607 | module_i2c_driver(adm1275_driver); |
83f7649c GR |
608 | |
609 | MODULE_AUTHOR("Guenter Roeck"); | |
5cf231a3 | 610 | MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1275 and compatibles"); |
83f7649c | 611 | MODULE_LICENSE("GPL"); |