1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * HWMON Driver for Dialog DA9052 |
4 | * |
5 | * Copyright(c) 2012 Dialog Semiconductor Ltd. |
6 | * |
7 | * Author: David Dajun Chen <dchen@diasemi.com> |
8 | */ |
9 | |
10 | #include <linux/err.h> |
11 | #include <linux/hwmon.h> |
12 | #include <linux/hwmon-sysfs.h> |
13 | #include <linux/init.h> |
14 | #include <linux/kernel.h> |
15 | #include <linux/module.h> |
16 | #include <linux/slab.h> |
17 | #include <linux/platform_device.h> |
18 | #include <linux/property.h> |
19 | |
20 | #include <linux/mfd/da9052/da9052.h> |
21 | #include <linux/mfd/da9052/reg.h> |
22 | #include <linux/regulator/consumer.h> |
23 | |
24 | struct da9052_hwmon { |
25 | struct da9052 *da9052; |
26 | struct mutex hwmon_lock; |
27 | bool tsi_as_adc; |
28 | int tsiref_mv; |
29 | struct regulator *tsiref; |
30 | struct completion tsidone; |
31 | }; |
32 | |
33 | static const char * const input_names[] = { |
34 | [DA9052_ADC_VDDOUT] = "VDDOUT" , |
35 | [DA9052_ADC_ICH] = "CHARGING CURRENT" , |
36 | [DA9052_ADC_TBAT] = "BATTERY TEMP" , |
37 | [DA9052_ADC_VBAT] = "BATTERY VOLTAGE" , |
38 | [DA9052_ADC_IN4] = "ADC IN4" , |
39 | [DA9052_ADC_IN5] = "ADC IN5" , |
40 | [DA9052_ADC_IN6] = "ADC IN6" , |
41 | [DA9052_ADC_TSI_XP] = "ADC TS X+" , |
42 | [DA9052_ADC_TSI_YP] = "ADC TS Y+" , |
43 | [DA9052_ADC_TSI_XN] = "ADC TS X-" , |
44 | [DA9052_ADC_TSI_YN] = "ADC TS Y-" , |
45 | [DA9052_ADC_TJUNC] = "BATTERY JUNCTION TEMP" , |
46 | [DA9052_ADC_VBBAT] = "BACK-UP BATTERY VOLTAGE" , |
47 | }; |
48 | |
49 | /* Conversion function for VDDOUT and VBAT */ |
50 | static inline int volt_reg_to_mv(int value) |
51 | { |
52 | return DIV_ROUND_CLOSEST(value * 2000, 1023) + 2500; |
53 | } |
54 | |
55 | /* Conversion function for ADC channels 4, 5 and 6 */ |
56 | static inline int input_reg_to_mv(int value) |
57 | { |
58 | return DIV_ROUND_CLOSEST(value * 2500, 1023); |
59 | } |
60 | |
61 | /* Conversion function for VBBAT */ |
62 | static inline int vbbat_reg_to_mv(int value) |
63 | { |
64 | return DIV_ROUND_CLOSEST(value * 5000, 1023); |
65 | } |
66 | |
67 | static inline int input_tsireg_to_mv(struct da9052_hwmon *hwmon, int value) |
68 | { |
69 | return DIV_ROUND_CLOSEST(value * hwmon->tsiref_mv, 1023); |
70 | } |
71 | |
72 | static inline int da9052_enable_vddout_channel(struct da9052 *da9052) |
73 | { |
74 | return da9052_reg_update(da9052, DA9052_ADC_CONT_REG, |
75 | DA9052_ADCCONT_AUTOVDDEN, |
76 | DA9052_ADCCONT_AUTOVDDEN); |
77 | } |
78 | |
79 | static inline int da9052_disable_vddout_channel(struct da9052 *da9052) |
80 | { |
81 | return da9052_reg_update(da9052, DA9052_ADC_CONT_REG, |
82 | DA9052_ADCCONT_AUTOVDDEN, reg_val: 0); |
83 | } |
84 | |
85 | static ssize_t da9052_vddout_show(struct device *dev, |
86 | struct device_attribute *devattr, char *buf) |
87 | { |
88 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
89 | int ret, vdd; |
90 | |
91 | mutex_lock(&hwmon->hwmon_lock); |
92 | |
93 | ret = da9052_enable_vddout_channel(da9052: hwmon->da9052); |
94 | if (ret < 0) |
95 | goto hwmon_err; |
96 | |
97 | vdd = da9052_reg_read(da9052: hwmon->da9052, DA9052_VDD_RES_REG); |
98 | if (vdd < 0) { |
99 | ret = vdd; |
100 | goto hwmon_err_release; |
101 | } |
102 | |
103 | ret = da9052_disable_vddout_channel(da9052: hwmon->da9052); |
104 | if (ret < 0) |
105 | goto hwmon_err; |
106 | |
107 | mutex_unlock(lock: &hwmon->hwmon_lock); |
108 | return sprintf(buf, fmt: "%d\n" , volt_reg_to_mv(value: vdd)); |
109 | |
110 | hwmon_err_release: |
111 | da9052_disable_vddout_channel(da9052: hwmon->da9052); |
112 | hwmon_err: |
113 | mutex_unlock(lock: &hwmon->hwmon_lock); |
114 | return ret; |
115 | } |
116 | |
117 | static ssize_t da9052_ich_show(struct device *dev, |
118 | struct device_attribute *devattr, char *buf) |
119 | { |
120 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
121 | int ret; |
122 | |
123 | ret = da9052_reg_read(da9052: hwmon->da9052, DA9052_ICHG_AV_REG); |
124 | if (ret < 0) |
125 | return ret; |
126 | |
127 | /* Equivalent to 3.9mA/bit in register ICHG_AV */ |
128 | return sprintf(buf, fmt: "%d\n" , DIV_ROUND_CLOSEST(ret * 39, 10)); |
129 | } |
130 | |
131 | static ssize_t da9052_tbat_show(struct device *dev, |
132 | struct device_attribute *devattr, char *buf) |
133 | { |
134 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
135 | |
136 | return sprintf(buf, fmt: "%d\n" , da9052_adc_read_temp(da9052: hwmon->da9052)); |
137 | } |
138 | |
139 | static ssize_t da9052_vbat_show(struct device *dev, |
140 | struct device_attribute *devattr, char *buf) |
141 | { |
142 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
143 | int ret; |
144 | |
145 | ret = da9052_adc_manual_read(da9052: hwmon->da9052, DA9052_ADC_VBAT); |
146 | if (ret < 0) |
147 | return ret; |
148 | |
149 | return sprintf(buf, fmt: "%d\n" , volt_reg_to_mv(value: ret)); |
150 | } |
151 | |
152 | static ssize_t da9052_misc_channel_show(struct device *dev, |
153 | struct device_attribute *devattr, |
154 | char *buf) |
155 | { |
156 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
157 | int channel = to_sensor_dev_attr(devattr)->index; |
158 | int ret; |
159 | |
160 | ret = da9052_adc_manual_read(da9052: hwmon->da9052, channel); |
161 | if (ret < 0) |
162 | return ret; |
163 | |
164 | return sprintf(buf, fmt: "%d\n" , input_reg_to_mv(value: ret)); |
165 | } |
166 | |
167 | static int da9052_request_tsi_read(struct da9052_hwmon *hwmon, int channel) |
168 | { |
169 | u8 val = DA9052_TSICONTB_TSIMAN; |
170 | |
171 | switch (channel) { |
172 | case DA9052_ADC_TSI_XP: |
173 | val |= DA9052_TSICONTB_TSIMUX_XP; |
174 | break; |
175 | case DA9052_ADC_TSI_YP: |
176 | val |= DA9052_TSICONTB_TSIMUX_YP; |
177 | break; |
178 | case DA9052_ADC_TSI_XN: |
179 | val |= DA9052_TSICONTB_TSIMUX_XN; |
180 | break; |
181 | case DA9052_ADC_TSI_YN: |
182 | val |= DA9052_TSICONTB_TSIMUX_YN; |
183 | break; |
184 | } |
185 | |
186 | return da9052_reg_write(da9052: hwmon->da9052, DA9052_TSI_CONT_B_REG, val); |
187 | } |
188 | |
189 | static int da9052_get_tsi_result(struct da9052_hwmon *hwmon, int channel) |
190 | { |
191 | u8 regs[3]; |
192 | int msb, lsb, err; |
193 | |
194 | /* block read to avoid separation of MSB and LSB */ |
195 | err = da9052_group_read(da9052: hwmon->da9052, DA9052_TSI_X_MSB_REG, |
196 | ARRAY_SIZE(regs), val: regs); |
197 | if (err) |
198 | return err; |
199 | |
200 | switch (channel) { |
201 | case DA9052_ADC_TSI_XP: |
202 | case DA9052_ADC_TSI_XN: |
203 | msb = regs[0] << DA9052_TSILSB_TSIXL_BITS; |
204 | lsb = regs[2] & DA9052_TSILSB_TSIXL; |
205 | lsb >>= DA9052_TSILSB_TSIXL_SHIFT; |
206 | break; |
207 | case DA9052_ADC_TSI_YP: |
208 | case DA9052_ADC_TSI_YN: |
209 | msb = regs[1] << DA9052_TSILSB_TSIYL_BITS; |
210 | lsb = regs[2] & DA9052_TSILSB_TSIYL; |
211 | lsb >>= DA9052_TSILSB_TSIYL_SHIFT; |
212 | break; |
213 | default: |
214 | return -EINVAL; |
215 | } |
216 | |
217 | return msb | lsb; |
218 | } |
219 | |
220 | |
221 | static ssize_t __da9052_read_tsi(struct device *dev, int channel) |
222 | { |
223 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
224 | int ret; |
225 | |
226 | reinit_completion(x: &hwmon->tsidone); |
227 | |
228 | ret = da9052_request_tsi_read(hwmon, channel); |
229 | if (ret < 0) |
230 | return ret; |
231 | |
232 | /* Wait for an conversion done interrupt */ |
233 | if (!wait_for_completion_timeout(x: &hwmon->tsidone, |
234 | timeout: msecs_to_jiffies(m: 500))) |
235 | return -ETIMEDOUT; |
236 | |
237 | return da9052_get_tsi_result(hwmon, channel); |
238 | } |
239 | |
240 | static ssize_t da9052_tsi_show(struct device *dev, |
241 | struct device_attribute *devattr, char *buf) |
242 | { |
243 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
244 | int channel = to_sensor_dev_attr(devattr)->index; |
245 | int ret; |
246 | |
247 | mutex_lock(&hwmon->da9052->auxadc_lock); |
248 | ret = __da9052_read_tsi(dev, channel); |
249 | mutex_unlock(lock: &hwmon->da9052->auxadc_lock); |
250 | |
251 | if (ret < 0) |
252 | return ret; |
253 | else |
254 | return sprintf(buf, fmt: "%d\n" , input_tsireg_to_mv(hwmon, value: ret)); |
255 | } |
256 | |
257 | static ssize_t da9052_tjunc_show(struct device *dev, |
258 | struct device_attribute *devattr, char *buf) |
259 | { |
260 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
261 | int tjunc; |
262 | int toffset; |
263 | |
264 | tjunc = da9052_reg_read(da9052: hwmon->da9052, DA9052_TJUNC_RES_REG); |
265 | if (tjunc < 0) |
266 | return tjunc; |
267 | |
268 | toffset = da9052_reg_read(da9052: hwmon->da9052, DA9052_T_OFFSET_REG); |
269 | if (toffset < 0) |
270 | return toffset; |
271 | |
272 | /* |
273 | * Degrees celsius = 1.708 * (TJUNC_RES - T_OFFSET) - 108.8 |
274 | * T_OFFSET is a trim value used to improve accuracy of the result |
275 | */ |
276 | return sprintf(buf, fmt: "%d\n" , 1708 * (tjunc - toffset) - 108800); |
277 | } |
278 | |
279 | static ssize_t da9052_vbbat_show(struct device *dev, |
280 | struct device_attribute *devattr, char *buf) |
281 | { |
282 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
283 | int ret; |
284 | |
285 | ret = da9052_adc_manual_read(da9052: hwmon->da9052, DA9052_ADC_VBBAT); |
286 | if (ret < 0) |
287 | return ret; |
288 | |
289 | return sprintf(buf, fmt: "%d\n" , vbbat_reg_to_mv(value: ret)); |
290 | } |
291 | |
292 | static ssize_t label_show(struct device *dev, |
293 | struct device_attribute *devattr, char *buf) |
294 | { |
295 | return sprintf(buf, fmt: "%s\n" , |
296 | input_names[to_sensor_dev_attr(devattr)->index]); |
297 | } |
298 | |
299 | static umode_t da9052_channel_is_visible(struct kobject *kobj, |
300 | struct attribute *attr, int index) |
301 | { |
302 | struct device *dev = kobj_to_dev(kobj); |
303 | struct da9052_hwmon *hwmon = dev_get_drvdata(dev); |
304 | struct device_attribute *dattr = container_of(attr, |
305 | struct device_attribute, attr); |
306 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(dattr); |
307 | |
308 | if (!hwmon->tsi_as_adc) { |
309 | switch (sattr->index) { |
310 | case DA9052_ADC_TSI_XP: |
311 | case DA9052_ADC_TSI_YP: |
312 | case DA9052_ADC_TSI_XN: |
313 | case DA9052_ADC_TSI_YN: |
314 | return 0; |
315 | } |
316 | } |
317 | |
318 | return attr->mode; |
319 | } |
320 | |
321 | static SENSOR_DEVICE_ATTR_RO(in0_input, da9052_vddout, DA9052_ADC_VDDOUT); |
322 | static SENSOR_DEVICE_ATTR_RO(in0_label, label, DA9052_ADC_VDDOUT); |
323 | static SENSOR_DEVICE_ATTR_RO(in3_input, da9052_vbat, DA9052_ADC_VBAT); |
324 | static SENSOR_DEVICE_ATTR_RO(in3_label, label, DA9052_ADC_VBAT); |
325 | static SENSOR_DEVICE_ATTR_RO(in4_input, da9052_misc_channel, DA9052_ADC_IN4); |
326 | static SENSOR_DEVICE_ATTR_RO(in4_label, label, DA9052_ADC_IN4); |
327 | static SENSOR_DEVICE_ATTR_RO(in5_input, da9052_misc_channel, DA9052_ADC_IN5); |
328 | static SENSOR_DEVICE_ATTR_RO(in5_label, label, DA9052_ADC_IN5); |
329 | static SENSOR_DEVICE_ATTR_RO(in6_input, da9052_misc_channel, DA9052_ADC_IN6); |
330 | static SENSOR_DEVICE_ATTR_RO(in6_label, label, DA9052_ADC_IN6); |
331 | static SENSOR_DEVICE_ATTR_RO(in9_input, da9052_vbbat, DA9052_ADC_VBBAT); |
332 | static SENSOR_DEVICE_ATTR_RO(in9_label, label, DA9052_ADC_VBBAT); |
333 | |
334 | static SENSOR_DEVICE_ATTR_RO(in70_input, da9052_tsi, DA9052_ADC_TSI_XP); |
335 | static SENSOR_DEVICE_ATTR_RO(in70_label, label, DA9052_ADC_TSI_XP); |
336 | static SENSOR_DEVICE_ATTR_RO(in71_input, da9052_tsi, DA9052_ADC_TSI_XN); |
337 | static SENSOR_DEVICE_ATTR_RO(in71_label, label, DA9052_ADC_TSI_XN); |
338 | static SENSOR_DEVICE_ATTR_RO(in72_input, da9052_tsi, DA9052_ADC_TSI_YP); |
339 | static SENSOR_DEVICE_ATTR_RO(in72_label, label, DA9052_ADC_TSI_YP); |
340 | static SENSOR_DEVICE_ATTR_RO(in73_input, da9052_tsi, DA9052_ADC_TSI_YN); |
341 | static SENSOR_DEVICE_ATTR_RO(in73_label, label, DA9052_ADC_TSI_YN); |
342 | |
343 | static SENSOR_DEVICE_ATTR_RO(curr1_input, da9052_ich, DA9052_ADC_ICH); |
344 | static SENSOR_DEVICE_ATTR_RO(curr1_label, label, DA9052_ADC_ICH); |
345 | |
346 | static SENSOR_DEVICE_ATTR_RO(temp2_input, da9052_tbat, DA9052_ADC_TBAT); |
347 | static SENSOR_DEVICE_ATTR_RO(temp2_label, label, DA9052_ADC_TBAT); |
348 | static SENSOR_DEVICE_ATTR_RO(temp8_input, da9052_tjunc, DA9052_ADC_TJUNC); |
349 | static SENSOR_DEVICE_ATTR_RO(temp8_label, label, DA9052_ADC_TJUNC); |
350 | |
351 | static struct attribute *da9052_attrs[] = { |
352 | &sensor_dev_attr_in0_input.dev_attr.attr, |
353 | &sensor_dev_attr_in0_label.dev_attr.attr, |
354 | &sensor_dev_attr_in3_input.dev_attr.attr, |
355 | &sensor_dev_attr_in3_label.dev_attr.attr, |
356 | &sensor_dev_attr_in4_input.dev_attr.attr, |
357 | &sensor_dev_attr_in4_label.dev_attr.attr, |
358 | &sensor_dev_attr_in5_input.dev_attr.attr, |
359 | &sensor_dev_attr_in5_label.dev_attr.attr, |
360 | &sensor_dev_attr_in6_input.dev_attr.attr, |
361 | &sensor_dev_attr_in6_label.dev_attr.attr, |
362 | &sensor_dev_attr_in70_input.dev_attr.attr, |
363 | &sensor_dev_attr_in70_label.dev_attr.attr, |
364 | &sensor_dev_attr_in71_input.dev_attr.attr, |
365 | &sensor_dev_attr_in71_label.dev_attr.attr, |
366 | &sensor_dev_attr_in72_input.dev_attr.attr, |
367 | &sensor_dev_attr_in72_label.dev_attr.attr, |
368 | &sensor_dev_attr_in73_input.dev_attr.attr, |
369 | &sensor_dev_attr_in73_label.dev_attr.attr, |
370 | &sensor_dev_attr_in9_input.dev_attr.attr, |
371 | &sensor_dev_attr_in9_label.dev_attr.attr, |
372 | &sensor_dev_attr_curr1_input.dev_attr.attr, |
373 | &sensor_dev_attr_curr1_label.dev_attr.attr, |
374 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
375 | &sensor_dev_attr_temp2_label.dev_attr.attr, |
376 | &sensor_dev_attr_temp8_input.dev_attr.attr, |
377 | &sensor_dev_attr_temp8_label.dev_attr.attr, |
378 | NULL |
379 | }; |
380 | |
381 | static const struct attribute_group da9052_group = { |
382 | .attrs = da9052_attrs, |
383 | .is_visible = da9052_channel_is_visible, |
384 | }; |
385 | __ATTRIBUTE_GROUPS(da9052); |
386 | |
387 | static irqreturn_t da9052_tsi_datardy_irq(int irq, void *data) |
388 | { |
389 | struct da9052_hwmon *hwmon = data; |
390 | |
391 | complete(&hwmon->tsidone); |
392 | return IRQ_HANDLED; |
393 | } |
394 | |
395 | static int da9052_hwmon_probe(struct platform_device *pdev) |
396 | { |
397 | struct device *dev = &pdev->dev; |
398 | struct da9052_hwmon *hwmon; |
399 | struct device *hwmon_dev; |
400 | int err; |
401 | |
402 | hwmon = devm_kzalloc(dev, size: sizeof(struct da9052_hwmon), GFP_KERNEL); |
403 | if (!hwmon) |
404 | return -ENOMEM; |
405 | |
406 | platform_set_drvdata(pdev, data: hwmon); |
407 | |
408 | mutex_init(&hwmon->hwmon_lock); |
409 | hwmon->da9052 = dev_get_drvdata(dev: pdev->dev.parent); |
410 | |
411 | init_completion(x: &hwmon->tsidone); |
412 | |
413 | hwmon->tsi_as_adc = |
414 | device_property_read_bool(dev: pdev->dev.parent, propname: "dlg,tsi-as-adc" ); |
415 | |
416 | if (hwmon->tsi_as_adc) { |
417 | hwmon->tsiref = devm_regulator_get(dev: pdev->dev.parent, id: "tsiref" ); |
418 | if (IS_ERR(ptr: hwmon->tsiref)) { |
419 | err = PTR_ERR(ptr: hwmon->tsiref); |
420 | dev_err(&pdev->dev, "failed to get tsiref: %d" , err); |
421 | return err; |
422 | } |
423 | |
424 | err = regulator_enable(regulator: hwmon->tsiref); |
425 | if (err) |
426 | return err; |
427 | |
428 | hwmon->tsiref_mv = regulator_get_voltage(regulator: hwmon->tsiref); |
429 | if (hwmon->tsiref_mv < 0) { |
430 | err = hwmon->tsiref_mv; |
431 | goto exit_regulator; |
432 | } |
433 | |
434 | /* convert from microvolt (DT) to millivolt (hwmon) */ |
435 | hwmon->tsiref_mv /= 1000; |
436 | |
437 | /* TSIREF limits from datasheet */ |
438 | if (hwmon->tsiref_mv < 1800 || hwmon->tsiref_mv > 2600) { |
439 | dev_err(hwmon->da9052->dev, "invalid TSIREF voltage: %d" , |
440 | hwmon->tsiref_mv); |
441 | err = -ENXIO; |
442 | goto exit_regulator; |
443 | } |
444 | |
445 | /* disable touchscreen features */ |
446 | da9052_reg_write(da9052: hwmon->da9052, DA9052_TSI_CONT_A_REG, val: 0x00); |
447 | |
448 | /* Sample every 1ms */ |
449 | da9052_reg_update(da9052: hwmon->da9052, DA9052_ADC_CONT_REG, |
450 | DA9052_ADCCONT_ADCMODE, |
451 | DA9052_ADCCONT_ADCMODE); |
452 | |
453 | err = da9052_request_irq(da9052: hwmon->da9052, DA9052_IRQ_TSIREADY, |
454 | name: "tsiready-irq" , handler: da9052_tsi_datardy_irq, |
455 | data: hwmon); |
456 | if (err) { |
457 | dev_err(&pdev->dev, "Failed to register TSIRDY IRQ: %d" , |
458 | err); |
459 | goto exit_regulator; |
460 | } |
461 | } |
462 | |
463 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, name: "da9052" , |
464 | drvdata: hwmon, |
465 | groups: da9052_groups); |
466 | err = PTR_ERR_OR_ZERO(ptr: hwmon_dev); |
467 | if (err) |
468 | goto exit_irq; |
469 | |
470 | return 0; |
471 | |
472 | exit_irq: |
473 | if (hwmon->tsi_as_adc) |
474 | da9052_free_irq(da9052: hwmon->da9052, DA9052_IRQ_TSIREADY, data: hwmon); |
475 | exit_regulator: |
476 | if (hwmon->tsiref) |
477 | regulator_disable(regulator: hwmon->tsiref); |
478 | |
479 | return err; |
480 | } |
481 | |
482 | static void da9052_hwmon_remove(struct platform_device *pdev) |
483 | { |
484 | struct da9052_hwmon *hwmon = platform_get_drvdata(pdev); |
485 | |
486 | if (hwmon->tsi_as_adc) { |
487 | da9052_free_irq(da9052: hwmon->da9052, DA9052_IRQ_TSIREADY, data: hwmon); |
488 | regulator_disable(regulator: hwmon->tsiref); |
489 | } |
490 | } |
491 | |
492 | static struct platform_driver da9052_hwmon_driver = { |
493 | .probe = da9052_hwmon_probe, |
494 | .remove_new = da9052_hwmon_remove, |
495 | .driver = { |
496 | .name = "da9052-hwmon" , |
497 | }, |
498 | }; |
499 | |
500 | module_platform_driver(da9052_hwmon_driver); |
501 | |
502 | MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>" ); |
503 | MODULE_DESCRIPTION("DA9052 HWMON driver" ); |
504 | MODULE_LICENSE("GPL" ); |
505 | MODULE_ALIAS("platform:da9052-hwmon" ); |
506 | |