blob: 8d7edd4c82285f2bce93fd811b013bb4f6a9a54a [file] [log] [blame]
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +10001/*
2 * R-Car THS/TSC thermal sensor driver
3 *
4 * Copyright (C) 2012 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 */
20#include <linux/delay.h>
21#include <linux/err.h>
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000022#include <linux/irq.h>
23#include <linux/interrupt.h>
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100024#include <linux/io.h>
25#include <linux/module.h>
26#include <linux/platform_device.h>
Kuninori Morimoto51d45d22013-03-26 06:08:52 +000027#include <linux/pm_runtime.h>
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -080028#include <linux/reboot.h>
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100029#include <linux/slab.h>
30#include <linux/spinlock.h>
31#include <linux/thermal.h>
32
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -080033#define IDLE_INTERVAL 5000
34
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000035#define COMMON_STR 0x00
36#define COMMON_ENR 0x04
37#define COMMON_INTMSK 0x0c
38
39#define REG_POSNEG 0x20
40#define REG_FILONOFF 0x28
Kuninori Morimotoe9137a52013-01-31 09:03:46 +000041#define REG_THSCR 0x2c
42#define REG_THSSR 0x30
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000043#define REG_INTCTRL 0x34
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100044
45/* THSCR */
Kuninori Morimotof8f53e12013-01-31 09:03:11 +000046#define CPCTL (1 << 12)
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100047
48/* THSSR */
49#define CTEMP 0x3f
50
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +000051struct rcar_thermal_common {
52 void __iomem *base;
53 struct device *dev;
54 struct list_head head;
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000055 spinlock_t lock;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +000056};
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100057
58struct rcar_thermal_priv {
59 void __iomem *base;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +000060 struct rcar_thermal_common *common;
61 struct thermal_zone_device *zone;
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000062 struct delayed_work work;
Kuninori Morimotob2bbc6a2013-01-31 09:03:22 +000063 struct mutex lock;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +000064 struct list_head list;
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000065 int id;
66 int ctemp;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100067};
68
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +000069#define rcar_thermal_for_each_priv(pos, common) \
70 list_for_each_entry(pos, &common->head, list)
71
Kuninori Morimotoc4997032012-11-26 02:32:06 +000072#define MCELSIUS(temp) ((temp) * 1000)
Kuninori Morimoto9dde8f82013-01-31 09:02:51 +000073#define rcar_zone_to_priv(zone) ((zone)->devdata)
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +000074#define rcar_priv_to_dev(priv) ((priv)->common->dev)
75#define rcar_has_irq_support(priv) ((priv)->common->base)
Kuninori Morimotoe0a51722013-01-31 09:04:48 +000076#define rcar_id_to_shift(priv) ((priv)->id * 8)
77
78#ifdef DEBUG
79# define rcar_force_update_temp(priv) 1
80#else
81# define rcar_force_update_temp(priv) 0
82#endif
Kuninori Morimotoc4997032012-11-26 02:32:06 +000083
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +100084/*
85 * basic functions
86 */
Kuninori Morimotoe9137a52013-01-31 09:03:46 +000087#define rcar_thermal_common_read(c, r) \
88 _rcar_thermal_common_read(c, COMMON_ ##r)
89static u32 _rcar_thermal_common_read(struct rcar_thermal_common *common,
90 u32 reg)
91{
92 return ioread32(common->base + reg);
93}
94
95#define rcar_thermal_common_write(c, r, d) \
96 _rcar_thermal_common_write(c, COMMON_ ##r, d)
97static void _rcar_thermal_common_write(struct rcar_thermal_common *common,
98 u32 reg, u32 data)
99{
100 iowrite32(data, common->base + reg);
101}
102
103#define rcar_thermal_common_bset(c, r, m, d) \
104 _rcar_thermal_common_bset(c, COMMON_ ##r, m, d)
105static void _rcar_thermal_common_bset(struct rcar_thermal_common *common,
106 u32 reg, u32 mask, u32 data)
107{
108 u32 val;
109
110 val = ioread32(common->base + reg);
111 val &= ~mask;
112 val |= (data & mask);
113 iowrite32(val, common->base + reg);
114}
Kuninori Morimotoe9137a52013-01-31 09:03:46 +0000115
116#define rcar_thermal_read(p, r) _rcar_thermal_read(p, REG_ ##r)
117static u32 _rcar_thermal_read(struct rcar_thermal_priv *priv, u32 reg)
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000118{
Kuninori Morimotob2bbc6a2013-01-31 09:03:22 +0000119 return ioread32(priv->base + reg);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000120}
121
Kuninori Morimotoe9137a52013-01-31 09:03:46 +0000122#define rcar_thermal_write(p, r, d) _rcar_thermal_write(p, REG_ ##r, d)
123static void _rcar_thermal_write(struct rcar_thermal_priv *priv,
124 u32 reg, u32 data)
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000125{
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000126 iowrite32(data, priv->base + reg);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000127}
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000128
Kuninori Morimotoe9137a52013-01-31 09:03:46 +0000129#define rcar_thermal_bset(p, r, m, d) _rcar_thermal_bset(p, REG_ ##r, m, d)
130static void _rcar_thermal_bset(struct rcar_thermal_priv *priv, u32 reg,
131 u32 mask, u32 data)
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000132{
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000133 u32 val;
134
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000135 val = ioread32(priv->base + reg);
136 val &= ~mask;
137 val |= (data & mask);
138 iowrite32(val, priv->base + reg);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000139}
140
141/*
142 * zone device functions
143 */
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000144static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv)
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000145{
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000146 struct device *dev = rcar_priv_to_dev(priv);
147 int i;
148 int ctemp, old, new;
Wei Yongjunf0e68fc2013-02-22 13:22:39 +0000149 int ret = -EINVAL;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000150
Kuninori Morimotob2bbc6a2013-01-31 09:03:22 +0000151 mutex_lock(&priv->lock);
152
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000153 /*
154 * TSC decides a value of CPTAP automatically,
155 * and this is the conditions which validate interrupt.
156 */
157 rcar_thermal_bset(priv, THSCR, CPCTL, CPCTL);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000158
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000159 ctemp = 0;
160 old = ~0;
161 for (i = 0; i < 128; i++) {
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000162 /*
163 * we need to wait 300us after changing comparator offset
164 * to get stable temperature.
165 * see "Usage Notes" on datasheet
166 */
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000167 udelay(300);
168
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000169 new = rcar_thermal_read(priv, THSSR) & CTEMP;
170 if (new == old) {
171 ctemp = new;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000172 break;
173 }
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000174 old = new;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000175 }
176
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000177 if (!ctemp) {
178 dev_err(dev, "thermal sensor was broken\n");
Wei Yongjunf0e68fc2013-02-22 13:22:39 +0000179 goto err_out_unlock;
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000180 }
181
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000182 /*
183 * enable IRQ
184 */
185 if (rcar_has_irq_support(priv)) {
186 rcar_thermal_write(priv, FILONOFF, 0);
Kuninori Morimotof8f53e12013-01-31 09:03:11 +0000187
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000188 /* enable Rising/Falling edge interrupt */
189 rcar_thermal_write(priv, POSNEG, 0x1);
190 rcar_thermal_write(priv, INTCTRL, (((ctemp - 0) << 8) |
191 ((ctemp - 1) << 0)));
192 }
193
194 dev_dbg(dev, "thermal%d %d -> %d\n", priv->id, priv->ctemp, ctemp);
195
196 priv->ctemp = ctemp;
Wei Yongjunf0e68fc2013-02-22 13:22:39 +0000197 ret = 0;
198err_out_unlock:
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000199 mutex_unlock(&priv->lock);
Wei Yongjunf0e68fc2013-02-22 13:22:39 +0000200 return ret;
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000201}
202
203static int rcar_thermal_get_temp(struct thermal_zone_device *zone,
204 unsigned long *temp)
205{
206 struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
207
208 if (!rcar_has_irq_support(priv) || rcar_force_update_temp(priv))
209 rcar_thermal_update_temp(priv);
210
211 mutex_lock(&priv->lock);
212 *temp = MCELSIUS((priv->ctemp * 5) - 65);
Kuninori Morimotob2bbc6a2013-01-31 09:03:22 +0000213 mutex_unlock(&priv->lock);
214
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000215 return 0;
216}
217
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800218static int rcar_thermal_get_trip_type(struct thermal_zone_device *zone,
219 int trip, enum thermal_trip_type *type)
220{
221 struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000222 struct device *dev = rcar_priv_to_dev(priv);
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800223
224 /* see rcar_thermal_get_temp() */
225 switch (trip) {
226 case 0: /* +90 <= temp */
227 *type = THERMAL_TRIP_CRITICAL;
228 break;
229 default:
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000230 dev_err(dev, "rcar driver trip error\n");
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800231 return -EINVAL;
232 }
233
234 return 0;
235}
236
237static int rcar_thermal_get_trip_temp(struct thermal_zone_device *zone,
238 int trip, unsigned long *temp)
239{
240 struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000241 struct device *dev = rcar_priv_to_dev(priv);
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800242
243 /* see rcar_thermal_get_temp() */
244 switch (trip) {
245 case 0: /* +90 <= temp */
246 *temp = MCELSIUS(90);
247 break;
248 default:
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000249 dev_err(dev, "rcar driver trip error\n");
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800250 return -EINVAL;
251 }
252
253 return 0;
254}
255
256static int rcar_thermal_notify(struct thermal_zone_device *zone,
257 int trip, enum thermal_trip_type type)
258{
259 struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000260 struct device *dev = rcar_priv_to_dev(priv);
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800261
262 switch (type) {
263 case THERMAL_TRIP_CRITICAL:
264 /* FIXME */
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000265 dev_warn(dev, "Thermal reached to critical temperature\n");
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800266 break;
267 default:
268 break;
269 }
270
271 return 0;
272}
273
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000274static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
kuninori.morimoto.gx@renesas.comd2a73e22012-12-02 18:48:41 -0800275 .get_temp = rcar_thermal_get_temp,
276 .get_trip_type = rcar_thermal_get_trip_type,
277 .get_trip_temp = rcar_thermal_get_trip_temp,
278 .notify = rcar_thermal_notify,
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000279};
280
281/*
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000282 * interrupt
283 */
284#define rcar_thermal_irq_enable(p) _rcar_thermal_irq_ctrl(p, 1)
285#define rcar_thermal_irq_disable(p) _rcar_thermal_irq_ctrl(p, 0)
286static void _rcar_thermal_irq_ctrl(struct rcar_thermal_priv *priv, int enable)
287{
288 struct rcar_thermal_common *common = priv->common;
289 unsigned long flags;
290 u32 mask = 0x3 << rcar_id_to_shift(priv); /* enable Rising/Falling */
291
292 spin_lock_irqsave(&common->lock, flags);
293
294 rcar_thermal_common_bset(common, INTMSK, mask, enable ? 0 : mask);
295
296 spin_unlock_irqrestore(&common->lock, flags);
297}
298
299static void rcar_thermal_work(struct work_struct *work)
300{
301 struct rcar_thermal_priv *priv;
302
303 priv = container_of(work, struct rcar_thermal_priv, work.work);
304
305 rcar_thermal_update_temp(priv);
306 rcar_thermal_irq_enable(priv);
307 thermal_zone_device_update(priv->zone);
308}
309
310static u32 rcar_thermal_had_changed(struct rcar_thermal_priv *priv, u32 status)
311{
312 struct device *dev = rcar_priv_to_dev(priv);
313
314 status = (status >> rcar_id_to_shift(priv)) & 0x3;
315
316 if (status & 0x3) {
317 dev_dbg(dev, "thermal%d %s%s\n",
318 priv->id,
319 (status & 0x2) ? "Rising " : "",
320 (status & 0x1) ? "Falling" : "");
321 }
322
323 return status;
324}
325
326static irqreturn_t rcar_thermal_irq(int irq, void *data)
327{
328 struct rcar_thermal_common *common = data;
329 struct rcar_thermal_priv *priv;
330 unsigned long flags;
331 u32 status, mask;
332
333 spin_lock_irqsave(&common->lock, flags);
334
335 mask = rcar_thermal_common_read(common, INTMSK);
336 status = rcar_thermal_common_read(common, STR);
337 rcar_thermal_common_write(common, STR, 0x000F0F0F & mask);
338
339 spin_unlock_irqrestore(&common->lock, flags);
340
341 status = status & ~mask;
342
343 /*
344 * check the status
345 */
346 rcar_thermal_for_each_priv(priv, common) {
347 if (rcar_thermal_had_changed(priv, status)) {
348 rcar_thermal_irq_disable(priv);
349 schedule_delayed_work(&priv->work,
350 msecs_to_jiffies(300));
351 }
352 }
353
354 return IRQ_HANDLED;
355}
356
357/*
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000358 * platform functions
359 */
360static int rcar_thermal_probe(struct platform_device *pdev)
361{
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000362 struct rcar_thermal_common *common;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000363 struct rcar_thermal_priv *priv;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000364 struct device *dev = &pdev->dev;
365 struct resource *res, *irq;
366 int mres = 0;
367 int i;
Devendra Nagafb84d992013-03-04 16:52:47 +0000368 int ret = -ENODEV;
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000369 int idle = IDLE_INTERVAL;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000370
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000371 common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL);
372 if (!common) {
373 dev_err(dev, "Could not allocate common\n");
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000374 return -ENOMEM;
375 }
376
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000377 INIT_LIST_HEAD(&common->head);
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000378 spin_lock_init(&common->lock);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000379 common->dev = dev;
380
Kuninori Morimoto51d45d22013-03-26 06:08:52 +0000381 pm_runtime_enable(dev);
382 pm_runtime_get_sync(dev);
383
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000384 irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
385 if (irq) {
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000386 int ret;
387
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000388 /*
389 * platform has IRQ support.
390 * Then, drier use common register
391 */
392 res = platform_get_resource(pdev, IORESOURCE_MEM, mres++);
393 if (!res) {
394 dev_err(dev, "Could not get platform resource\n");
395 return -ENODEV;
396 }
397
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000398 ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, 0,
399 dev_name(dev), common);
400 if (ret) {
401 dev_err(dev, "irq request failed\n ");
402 return ret;
403 }
404
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000405 /*
406 * rcar_has_irq_support() will be enabled
407 */
Sachin Kamat50955262013-03-04 06:45:33 +0000408 common->base = devm_ioremap_resource(dev, res);
409 if (IS_ERR(common->base))
410 return PTR_ERR(common->base);
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000411
412 /* enable temperature comparation */
413 rcar_thermal_common_write(common, ENR, 0x00030303);
414
415 idle = 0; /* polling delaye is not needed */
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000416 }
417
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000418 for (i = 0;; i++) {
419 res = platform_get_resource(pdev, IORESOURCE_MEM, mres++);
420 if (!res)
421 break;
422
423 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
424 if (!priv) {
425 dev_err(dev, "Could not allocate priv\n");
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000426 ret = -ENOMEM;
427 goto error_unregister;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000428 }
429
Sachin Kamat50955262013-03-04 06:45:33 +0000430 priv->base = devm_ioremap_resource(dev, res);
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000431 if (IS_ERR(priv->base)) {
432 ret = PTR_ERR(priv->base);
433 goto error_unregister;
434 }
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000435
436 priv->common = common;
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000437 priv->id = i;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000438 mutex_init(&priv->lock);
439 INIT_LIST_HEAD(&priv->list);
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000440 INIT_DELAYED_WORK(&priv->work, rcar_thermal_work);
441 rcar_thermal_update_temp(priv);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000442
443 priv->zone = thermal_zone_device_register("rcar_thermal",
444 1, 0, priv,
445 &rcar_thermal_zone_ops, NULL, 0,
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000446 idle);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000447 if (IS_ERR(priv->zone)) {
448 dev_err(dev, "can't register thermal zone\n");
Devendra Nagafb84d992013-03-04 16:52:47 +0000449 ret = PTR_ERR(priv->zone);
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000450 goto error_unregister;
451 }
452
Kuninori Morimotoe0a51722013-01-31 09:04:48 +0000453 if (rcar_has_irq_support(priv))
454 rcar_thermal_irq_enable(priv);
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000455
456 list_move_tail(&priv->list, &common->head);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000457 }
458
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000459 platform_set_drvdata(pdev, common);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000460
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000461 dev_info(dev, "%d sensor proved\n", i);
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000462
463 return 0;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000464
465error_unregister:
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000466 rcar_thermal_for_each_priv(priv, common) {
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000467 thermal_zone_device_unregister(priv->zone);
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000468 if (rcar_has_irq_support(priv))
469 rcar_thermal_irq_disable(priv);
470 }
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000471
Kuninori Morimoto51d45d22013-03-26 06:08:52 +0000472 pm_runtime_put_sync(dev);
473 pm_runtime_disable(dev);
474
Devendra Nagafb84d992013-03-04 16:52:47 +0000475 return ret;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000476}
477
478static int rcar_thermal_remove(struct platform_device *pdev)
479{
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000480 struct rcar_thermal_common *common = platform_get_drvdata(pdev);
Kuninori Morimoto51d45d22013-03-26 06:08:52 +0000481 struct device *dev = &pdev->dev;
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000482 struct rcar_thermal_priv *priv;
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000483
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000484 rcar_thermal_for_each_priv(priv, common) {
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000485 thermal_zone_device_unregister(priv->zone);
Kuninori Morimoto1dc20822013-03-26 06:08:10 +0000486 if (rcar_has_irq_support(priv))
487 rcar_thermal_irq_disable(priv);
488 }
Kuninori Morimoto3676d1d2013-01-31 09:03:33 +0000489
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000490 platform_set_drvdata(pdev, NULL);
491
Kuninori Morimoto51d45d22013-03-26 06:08:52 +0000492 pm_runtime_put_sync(dev);
493 pm_runtime_disable(dev);
494
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000495 return 0;
496}
497
Arnd Bergmannf5b6d452013-02-14 23:26:58 +0100498static const struct of_device_id rcar_thermal_dt_ids[] = {
Kuninori Morimoto76cc1882013-01-31 09:05:26 +0000499 { .compatible = "renesas,rcar-thermal", },
500 {},
501};
502MODULE_DEVICE_TABLE(of, rcar_thermal_dt_ids);
503
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000504static struct platform_driver rcar_thermal_driver = {
505 .driver = {
506 .name = "rcar_thermal",
Kuninori Morimoto76cc1882013-01-31 09:05:26 +0000507 .of_match_table = rcar_thermal_dt_ids,
Kuninori Morimoto1e426ff2012-07-21 10:53:48 +1000508 },
509 .probe = rcar_thermal_probe,
510 .remove = rcar_thermal_remove,
511};
512module_platform_driver(rcar_thermal_driver);
513
514MODULE_LICENSE("GPL");
515MODULE_DESCRIPTION("R-Car THS/TSC thermal sensor driver");
516MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");