1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * R-Car Gen3 THS thermal sensor driver
4 * Based on rcar_thermal.c and work from Hien Dang and Khiem Nguyen.
5 *
6 * Copyright (C) 2016 Renesas Electronics Corporation.
7 * Copyright (C) 2016 Sang Engineering
8 */
9 #include <linux/delay.h>
10 #include <linux/err.h>
11 #include <linux/interrupt.h>
12 #include <linux/io.h>
13 #include <linux/module.h>
14 #include <linux/of.h>
15 #include <linux/platform_device.h>
16 #include <linux/pm_runtime.h>
17 #include <linux/thermal.h>
18
19 #include "thermal_hwmon.h"
20
21 /* Register offsets */
22 #define REG_GEN3_IRQSTR 0x04
23 #define REG_GEN3_IRQMSK 0x08
24 #define REG_GEN3_IRQCTL 0x0C
25 #define REG_GEN3_IRQEN 0x10
26 #define REG_GEN3_IRQTEMP1 0x14
27 #define REG_GEN3_IRQTEMP2 0x18
28 #define REG_GEN3_IRQTEMP3 0x1C
29 #define REG_GEN3_THCTR 0x20
30 #define REG_GEN3_TEMP 0x28
31 #define REG_GEN3_THCODE1 0x50
32 #define REG_GEN3_THCODE2 0x54
33 #define REG_GEN3_THCODE3 0x58
34 #define REG_GEN3_PTAT1 0x5c
35 #define REG_GEN3_PTAT2 0x60
36 #define REG_GEN3_PTAT3 0x64
37 #define REG_GEN3_THSCP 0x68
38 #define REG_GEN4_THSFMON00 0x180
39 #define REG_GEN4_THSFMON01 0x184
40 #define REG_GEN4_THSFMON02 0x188
41 #define REG_GEN4_THSFMON15 0x1BC
42 #define REG_GEN4_THSFMON16 0x1C0
43 #define REG_GEN4_THSFMON17 0x1C4
44
45 /* IRQ{STR,MSK,EN} bits */
46 #define IRQ_TEMP1 BIT(0)
47 #define IRQ_TEMP2 BIT(1)
48 #define IRQ_TEMP3 BIT(2)
49 #define IRQ_TEMPD1 BIT(3)
50 #define IRQ_TEMPD2 BIT(4)
51 #define IRQ_TEMPD3 BIT(5)
52
53 /* THCTR bits */
54 #define THCTR_PONM BIT(6)
55 #define THCTR_THSST BIT(0)
56
57 /* THSCP bits */
58 #define THSCP_COR_PARA_VLD (BIT(15) | BIT(14))
59
60 #define CTEMP_MASK 0xFFF
61
62 #define MCELSIUS(temp) ((temp) * 1000)
63 #define GEN3_FUSE_MASK 0xFFF
64 #define GEN4_FUSE_MASK 0xFFF
65
66 #define TSC_MAX_NUM 5
67
68 /* Structure for thermal temperature calculation */
69 struct equation_coefs {
70 int a1;
71 int b1;
72 int a2;
73 int b2;
74 };
75
76 struct rcar_gen3_thermal_priv;
77
78 struct rcar_thermal_info {
79 int ths_tj_1;
80 void (*read_fuses)(struct rcar_gen3_thermal_priv *priv);
81 };
82
83 struct rcar_gen3_thermal_tsc {
84 void __iomem *base;
85 struct thermal_zone_device *zone;
86 struct equation_coefs coef;
87 int tj_t;
88 int thcode[3];
89 };
90
91 struct rcar_gen3_thermal_priv {
92 struct rcar_gen3_thermal_tsc *tscs[TSC_MAX_NUM];
93 struct thermal_zone_device_ops ops;
94 unsigned int num_tscs;
95 int ptat[3];
96 const struct rcar_thermal_info *info;
97 };
98
rcar_gen3_thermal_read(struct rcar_gen3_thermal_tsc * tsc,u32 reg)99 static inline u32 rcar_gen3_thermal_read(struct rcar_gen3_thermal_tsc *tsc,
100 u32 reg)
101 {
102 return ioread32(tsc->base + reg);
103 }
104
rcar_gen3_thermal_write(struct rcar_gen3_thermal_tsc * tsc,u32 reg,u32 data)105 static inline void rcar_gen3_thermal_write(struct rcar_gen3_thermal_tsc *tsc,
106 u32 reg, u32 data)
107 {
108 iowrite32(data, tsc->base + reg);
109 }
110
111 /*
112 * Linear approximation for temperature
113 *
114 * [reg] = [temp] * a + b => [temp] = ([reg] - b) / a
115 *
116 * The constants a and b are calculated using two triplets of int values PTAT
117 * and THCODE. PTAT and THCODE can either be read from hardware or use hard
118 * coded values from driver. The formula to calculate a and b are taken from
119 * BSP and sparsely documented and understood.
120 *
121 * Examining the linear formula and the formula used to calculate constants a
122 * and b while knowing that the span for PTAT and THCODE values are between
123 * 0x000 and 0xfff the largest integer possible is 0xfff * 0xfff == 0xffe001.
124 * Integer also needs to be signed so that leaves 7 bits for binary
125 * fixed point scaling.
126 */
127
128 #define FIXPT_SHIFT 7
129 #define FIXPT_INT(_x) ((_x) << FIXPT_SHIFT)
130 #define INT_FIXPT(_x) ((_x) >> FIXPT_SHIFT)
131 #define FIXPT_DIV(_a, _b) DIV_ROUND_CLOSEST(((_a) << FIXPT_SHIFT), (_b))
132 #define FIXPT_TO_MCELSIUS(_x) ((_x) * 1000 >> FIXPT_SHIFT)
133
134 #define RCAR3_THERMAL_GRAN 500 /* mili Celsius */
135
136 /* no idea where these constants come from */
137 #define TJ_3 -41
138
rcar_gen3_thermal_calc_coefs(struct rcar_gen3_thermal_priv * priv,struct rcar_gen3_thermal_tsc * tsc,int ths_tj_1)139 static void rcar_gen3_thermal_calc_coefs(struct rcar_gen3_thermal_priv *priv,
140 struct rcar_gen3_thermal_tsc *tsc,
141 int ths_tj_1)
142 {
143 /* TODO: Find documentation and document constant calculation formula */
144
145 /*
146 * Division is not scaled in BSP and if scaled it might overflow
147 * the dividend (4095 * 4095 << 14 > INT_MAX) so keep it unscaled
148 */
149 tsc->tj_t = (FIXPT_INT((priv->ptat[1] - priv->ptat[2]) * (ths_tj_1 - TJ_3))
150 / (priv->ptat[0] - priv->ptat[2])) + FIXPT_INT(TJ_3);
151
152 tsc->coef.a1 = FIXPT_DIV(FIXPT_INT(tsc->thcode[1] - tsc->thcode[2]),
153 tsc->tj_t - FIXPT_INT(TJ_3));
154 tsc->coef.b1 = FIXPT_INT(tsc->thcode[2]) - tsc->coef.a1 * TJ_3;
155
156 tsc->coef.a2 = FIXPT_DIV(FIXPT_INT(tsc->thcode[1] - tsc->thcode[0]),
157 tsc->tj_t - FIXPT_INT(ths_tj_1));
158 tsc->coef.b2 = FIXPT_INT(tsc->thcode[0]) - tsc->coef.a2 * ths_tj_1;
159 }
160
rcar_gen3_thermal_round(int temp)161 static int rcar_gen3_thermal_round(int temp)
162 {
163 int result, round_offs;
164
165 round_offs = temp >= 0 ? RCAR3_THERMAL_GRAN / 2 :
166 -RCAR3_THERMAL_GRAN / 2;
167 result = (temp + round_offs) / RCAR3_THERMAL_GRAN;
168 return result * RCAR3_THERMAL_GRAN;
169 }
170
rcar_gen3_thermal_get_temp(struct thermal_zone_device * tz,int * temp)171 static int rcar_gen3_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
172 {
173 struct rcar_gen3_thermal_tsc *tsc = thermal_zone_device_priv(tz);
174 int mcelsius, val;
175 int reg;
176
177 /* Read register and convert to mili Celsius */
178 reg = rcar_gen3_thermal_read(tsc, REG_GEN3_TEMP) & CTEMP_MASK;
179
180 if (reg <= tsc->thcode[1])
181 val = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b1,
182 tsc->coef.a1);
183 else
184 val = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b2,
185 tsc->coef.a2);
186 mcelsius = FIXPT_TO_MCELSIUS(val);
187
188 /* Guaranteed operating range is -40C to 125C. */
189
190 /* Round value to device granularity setting */
191 *temp = rcar_gen3_thermal_round(mcelsius);
192
193 return 0;
194 }
195
rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc * tsc,int mcelsius)196 static int rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc *tsc,
197 int mcelsius)
198 {
199 int celsius, val;
200
201 celsius = DIV_ROUND_CLOSEST(mcelsius, 1000);
202 if (celsius <= INT_FIXPT(tsc->tj_t))
203 val = celsius * tsc->coef.a1 + tsc->coef.b1;
204 else
205 val = celsius * tsc->coef.a2 + tsc->coef.b2;
206
207 return INT_FIXPT(val);
208 }
209
rcar_gen3_thermal_set_trips(struct thermal_zone_device * tz,int low,int high)210 static int rcar_gen3_thermal_set_trips(struct thermal_zone_device *tz, int low, int high)
211 {
212 struct rcar_gen3_thermal_tsc *tsc = thermal_zone_device_priv(tz);
213 u32 irqmsk = 0;
214
215 if (low != -INT_MAX) {
216 irqmsk |= IRQ_TEMPD1;
217 rcar_gen3_thermal_write(tsc, REG_GEN3_IRQTEMP1,
218 rcar_gen3_thermal_mcelsius_to_temp(tsc, low));
219 }
220
221 if (high != INT_MAX) {
222 irqmsk |= IRQ_TEMP2;
223 rcar_gen3_thermal_write(tsc, REG_GEN3_IRQTEMP2,
224 rcar_gen3_thermal_mcelsius_to_temp(tsc, high));
225 }
226
227 rcar_gen3_thermal_write(tsc, REG_GEN3_IRQMSK, irqmsk);
228
229 return 0;
230 }
231
232 static const struct thermal_zone_device_ops rcar_gen3_tz_of_ops = {
233 .get_temp = rcar_gen3_thermal_get_temp,
234 .set_trips = rcar_gen3_thermal_set_trips,
235 };
236
rcar_gen3_thermal_irq(int irq,void * data)237 static irqreturn_t rcar_gen3_thermal_irq(int irq, void *data)
238 {
239 struct rcar_gen3_thermal_priv *priv = data;
240 unsigned int i;
241 u32 status;
242
243 for (i = 0; i < priv->num_tscs; i++) {
244 status = rcar_gen3_thermal_read(priv->tscs[i], REG_GEN3_IRQSTR);
245 rcar_gen3_thermal_write(priv->tscs[i], REG_GEN3_IRQSTR, 0);
246 if (status && priv->tscs[i]->zone)
247 thermal_zone_device_update(priv->tscs[i]->zone,
248 THERMAL_EVENT_UNSPECIFIED);
249 }
250
251 return IRQ_HANDLED;
252 }
253
rcar_gen3_thermal_read_fuses_gen3(struct rcar_gen3_thermal_priv * priv)254 static void rcar_gen3_thermal_read_fuses_gen3(struct rcar_gen3_thermal_priv *priv)
255 {
256 unsigned int i;
257
258 /*
259 * Set the pseudo calibration points with fused values.
260 * PTAT is shared between all TSCs but only fused for the first
261 * TSC while THCODEs are fused for each TSC.
262 */
263 priv->ptat[0] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_PTAT1) &
264 GEN3_FUSE_MASK;
265 priv->ptat[1] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_PTAT2) &
266 GEN3_FUSE_MASK;
267 priv->ptat[2] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_PTAT3) &
268 GEN3_FUSE_MASK;
269
270 for (i = 0; i < priv->num_tscs; i++) {
271 struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
272
273 tsc->thcode[0] = rcar_gen3_thermal_read(tsc, REG_GEN3_THCODE1) &
274 GEN3_FUSE_MASK;
275 tsc->thcode[1] = rcar_gen3_thermal_read(tsc, REG_GEN3_THCODE2) &
276 GEN3_FUSE_MASK;
277 tsc->thcode[2] = rcar_gen3_thermal_read(tsc, REG_GEN3_THCODE3) &
278 GEN3_FUSE_MASK;
279 }
280 }
281
rcar_gen3_thermal_read_fuses_gen4(struct rcar_gen3_thermal_priv * priv)282 static void rcar_gen3_thermal_read_fuses_gen4(struct rcar_gen3_thermal_priv *priv)
283 {
284 unsigned int i;
285
286 /*
287 * Set the pseudo calibration points with fused values.
288 * PTAT is shared between all TSCs but only fused for the first
289 * TSC while THCODEs are fused for each TSC.
290 */
291 priv->ptat[0] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN4_THSFMON16) &
292 GEN4_FUSE_MASK;
293 priv->ptat[1] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN4_THSFMON17) &
294 GEN4_FUSE_MASK;
295 priv->ptat[2] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN4_THSFMON15) &
296 GEN4_FUSE_MASK;
297
298 for (i = 0; i < priv->num_tscs; i++) {
299 struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
300
301 tsc->thcode[0] = rcar_gen3_thermal_read(tsc, REG_GEN4_THSFMON01) &
302 GEN4_FUSE_MASK;
303 tsc->thcode[1] = rcar_gen3_thermal_read(tsc, REG_GEN4_THSFMON02) &
304 GEN4_FUSE_MASK;
305 tsc->thcode[2] = rcar_gen3_thermal_read(tsc, REG_GEN4_THSFMON00) &
306 GEN4_FUSE_MASK;
307 }
308 }
309
rcar_gen3_thermal_read_fuses(struct rcar_gen3_thermal_priv * priv)310 static bool rcar_gen3_thermal_read_fuses(struct rcar_gen3_thermal_priv *priv)
311 {
312 unsigned int i;
313 u32 thscp;
314
315 /* If fuses are not set, fallback to pseudo values. */
316 thscp = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_THSCP);
317 if (!priv->info->read_fuses ||
318 (thscp & THSCP_COR_PARA_VLD) != THSCP_COR_PARA_VLD) {
319 /* Default THCODE values in case FUSEs are not set. */
320 static const int thcodes[TSC_MAX_NUM][3] = {
321 { 3397, 2800, 2221 },
322 { 3393, 2795, 2216 },
323 { 3389, 2805, 2237 },
324 { 3415, 2694, 2195 },
325 { 3356, 2724, 2244 },
326 };
327
328 priv->ptat[0] = 2631;
329 priv->ptat[1] = 1509;
330 priv->ptat[2] = 435;
331
332 for (i = 0; i < priv->num_tscs; i++) {
333 struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
334
335 tsc->thcode[0] = thcodes[i][0];
336 tsc->thcode[1] = thcodes[i][1];
337 tsc->thcode[2] = thcodes[i][2];
338 }
339
340 return false;
341 }
342
343 priv->info->read_fuses(priv);
344 return true;
345 }
346
rcar_gen3_thermal_init(struct rcar_gen3_thermal_priv * priv,struct rcar_gen3_thermal_tsc * tsc)347 static void rcar_gen3_thermal_init(struct rcar_gen3_thermal_priv *priv,
348 struct rcar_gen3_thermal_tsc *tsc)
349 {
350 u32 reg_val;
351
352 reg_val = rcar_gen3_thermal_read(tsc, REG_GEN3_THCTR);
353 reg_val &= ~THCTR_PONM;
354 rcar_gen3_thermal_write(tsc, REG_GEN3_THCTR, reg_val);
355
356 usleep_range(1000, 2000);
357
358 rcar_gen3_thermal_write(tsc, REG_GEN3_IRQCTL, 0);
359 rcar_gen3_thermal_write(tsc, REG_GEN3_IRQMSK, 0);
360 if (priv->ops.set_trips)
361 rcar_gen3_thermal_write(tsc, REG_GEN3_IRQEN,
362 IRQ_TEMPD1 | IRQ_TEMP2);
363
364 reg_val = rcar_gen3_thermal_read(tsc, REG_GEN3_THCTR);
365 reg_val |= THCTR_THSST;
366 rcar_gen3_thermal_write(tsc, REG_GEN3_THCTR, reg_val);
367
368 usleep_range(1000, 2000);
369 }
370
371 static const struct rcar_thermal_info rcar_m3w_thermal_info = {
372 .ths_tj_1 = 116,
373 .read_fuses = rcar_gen3_thermal_read_fuses_gen3,
374 };
375
376 static const struct rcar_thermal_info rcar_gen3_thermal_info = {
377 .ths_tj_1 = 126,
378 .read_fuses = rcar_gen3_thermal_read_fuses_gen3,
379 };
380
381 static const struct rcar_thermal_info rcar_gen4_thermal_info = {
382 .ths_tj_1 = 126,
383 .read_fuses = rcar_gen3_thermal_read_fuses_gen4,
384 };
385
386 static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
387 {
388 .compatible = "renesas,r8a774a1-thermal",
389 .data = &rcar_m3w_thermal_info,
390 },
391 {
392 .compatible = "renesas,r8a774b1-thermal",
393 .data = &rcar_gen3_thermal_info,
394 },
395 {
396 .compatible = "renesas,r8a774e1-thermal",
397 .data = &rcar_gen3_thermal_info,
398 },
399 {
400 .compatible = "renesas,r8a7795-thermal",
401 .data = &rcar_gen3_thermal_info,
402 },
403 {
404 .compatible = "renesas,r8a7796-thermal",
405 .data = &rcar_m3w_thermal_info,
406 },
407 {
408 .compatible = "renesas,r8a77961-thermal",
409 .data = &rcar_m3w_thermal_info,
410 },
411 {
412 .compatible = "renesas,r8a77965-thermal",
413 .data = &rcar_gen3_thermal_info,
414 },
415 {
416 .compatible = "renesas,r8a77980-thermal",
417 .data = &rcar_gen3_thermal_info,
418 },
419 {
420 .compatible = "renesas,r8a779a0-thermal",
421 .data = &rcar_gen3_thermal_info,
422 },
423 {
424 .compatible = "renesas,r8a779f0-thermal",
425 .data = &rcar_gen4_thermal_info,
426 },
427 {
428 .compatible = "renesas,r8a779g0-thermal",
429 .data = &rcar_gen4_thermal_info,
430 },
431 {},
432 };
433 MODULE_DEVICE_TABLE(of, rcar_gen3_thermal_dt_ids);
434
rcar_gen3_thermal_remove(struct platform_device * pdev)435 static int rcar_gen3_thermal_remove(struct platform_device *pdev)
436 {
437 struct device *dev = &pdev->dev;
438
439 pm_runtime_put(dev);
440 pm_runtime_disable(dev);
441
442 return 0;
443 }
444
rcar_gen3_hwmon_action(void * data)445 static void rcar_gen3_hwmon_action(void *data)
446 {
447 struct thermal_zone_device *zone = data;
448
449 thermal_remove_hwmon_sysfs(zone);
450 }
451
rcar_gen3_thermal_request_irqs(struct rcar_gen3_thermal_priv * priv,struct platform_device * pdev)452 static int rcar_gen3_thermal_request_irqs(struct rcar_gen3_thermal_priv *priv,
453 struct platform_device *pdev)
454 {
455 struct device *dev = &pdev->dev;
456 unsigned int i;
457 char *irqname;
458 int ret, irq;
459
460 for (i = 0; i < 2; i++) {
461 irq = platform_get_irq_optional(pdev, i);
462 if (irq < 0)
463 return irq;
464
465 irqname = devm_kasprintf(dev, GFP_KERNEL, "%s:ch%d",
466 dev_name(dev), i);
467 if (!irqname)
468 return -ENOMEM;
469
470 ret = devm_request_threaded_irq(dev, irq, NULL,
471 rcar_gen3_thermal_irq,
472 IRQF_ONESHOT, irqname, priv);
473 if (ret)
474 return ret;
475 }
476
477 return 0;
478 }
479
rcar_gen3_thermal_probe(struct platform_device * pdev)480 static int rcar_gen3_thermal_probe(struct platform_device *pdev)
481 {
482 struct rcar_gen3_thermal_priv *priv;
483 struct device *dev = &pdev->dev;
484 struct resource *res;
485 struct thermal_zone_device *zone;
486 unsigned int i;
487 int ret;
488
489 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
490 if (!priv)
491 return -ENOMEM;
492
493 priv->ops = rcar_gen3_tz_of_ops;
494
495 priv->info = of_device_get_match_data(dev);
496 platform_set_drvdata(pdev, priv);
497
498 if (rcar_gen3_thermal_request_irqs(priv, pdev))
499 priv->ops.set_trips = NULL;
500
501 pm_runtime_enable(dev);
502 pm_runtime_get_sync(dev);
503
504 for (i = 0; i < TSC_MAX_NUM; i++) {
505 struct rcar_gen3_thermal_tsc *tsc;
506
507 res = platform_get_resource(pdev, IORESOURCE_MEM, i);
508 if (!res)
509 break;
510
511 tsc = devm_kzalloc(dev, sizeof(*tsc), GFP_KERNEL);
512 if (!tsc) {
513 ret = -ENOMEM;
514 goto error_unregister;
515 }
516
517 tsc->base = devm_ioremap_resource(dev, res);
518 if (IS_ERR(tsc->base)) {
519 ret = PTR_ERR(tsc->base);
520 goto error_unregister;
521 }
522
523 priv->tscs[i] = tsc;
524 }
525
526 priv->num_tscs = i;
527
528 if (!rcar_gen3_thermal_read_fuses(priv))
529 dev_info(dev, "No calibration values fused, fallback to driver values\n");
530
531 for (i = 0; i < priv->num_tscs; i++) {
532 struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
533
534 rcar_gen3_thermal_init(priv, tsc);
535 rcar_gen3_thermal_calc_coefs(priv, tsc, priv->info->ths_tj_1);
536
537 zone = devm_thermal_of_zone_register(dev, i, tsc, &priv->ops);
538 if (IS_ERR(zone)) {
539 dev_err(dev, "Sensor %u: Can't register thermal zone\n", i);
540 ret = PTR_ERR(zone);
541 goto error_unregister;
542 }
543 tsc->zone = zone;
544
545 ret = thermal_add_hwmon_sysfs(tsc->zone);
546 if (ret)
547 goto error_unregister;
548
549 ret = devm_add_action_or_reset(dev, rcar_gen3_hwmon_action, zone);
550 if (ret)
551 goto error_unregister;
552
553 ret = thermal_zone_get_num_trips(tsc->zone);
554 if (ret < 0)
555 goto error_unregister;
556
557 dev_info(dev, "Sensor %u: Loaded %d trip points\n", i, ret);
558 }
559
560 if (!priv->num_tscs) {
561 ret = -ENODEV;
562 goto error_unregister;
563 }
564
565 return 0;
566
567 error_unregister:
568 rcar_gen3_thermal_remove(pdev);
569
570 return ret;
571 }
572
rcar_gen3_thermal_resume(struct device * dev)573 static int __maybe_unused rcar_gen3_thermal_resume(struct device *dev)
574 {
575 struct rcar_gen3_thermal_priv *priv = dev_get_drvdata(dev);
576 unsigned int i;
577
578 for (i = 0; i < priv->num_tscs; i++) {
579 struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
580
581 rcar_gen3_thermal_init(priv, tsc);
582 }
583
584 return 0;
585 }
586
587 static SIMPLE_DEV_PM_OPS(rcar_gen3_thermal_pm_ops, NULL,
588 rcar_gen3_thermal_resume);
589
590 static struct platform_driver rcar_gen3_thermal_driver = {
591 .driver = {
592 .name = "rcar_gen3_thermal",
593 .pm = &rcar_gen3_thermal_pm_ops,
594 .of_match_table = rcar_gen3_thermal_dt_ids,
595 },
596 .probe = rcar_gen3_thermal_probe,
597 .remove = rcar_gen3_thermal_remove,
598 };
599 module_platform_driver(rcar_gen3_thermal_driver);
600
601 MODULE_LICENSE("GPL v2");
602 MODULE_DESCRIPTION("R-Car Gen3 THS thermal sensor driver");
603 MODULE_AUTHOR("Wolfram Sang <wsa+renesas@sang-engineering.com>");
604