target/linux/brcm2708/patches-3.10/0033-Added-hwmon-thermal-driver-for-reporting-core-temper.patch

   1 From 4c7d4bffe1986d856b37460f87950dabe29c616e Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Tue, 26 Mar 2013 19:24:24 +0000
   4 Subject: [PATCH 033/196] Added hwmon/thermal driver for reporting core
   5  temperature. Thanks Dorian
   6
   7 ---
   8  arch/arm/mach-bcm2708/bcm2708.c   |  11 ++
   9  drivers/hwmon/Kconfig             |  10 ++
  10  drivers/hwmon/Makefile            |   1 +
  11  drivers/hwmon/bcm2835-hwmon.c     | 219 ++++++++++++++++++++++++++++++++++++++
  12  drivers/thermal/Kconfig           |   7 ++
  13  drivers/thermal/Makefile          |   1 +
  14  drivers/thermal/bcm2835-thermal.c | 208 ++++++++++++++++++++++++++++++++++++
  15  7 files changed, 457 insertions(+)
  16  create mode 100644 drivers/hwmon/bcm2835-hwmon.c
  17  create mode 100644 drivers/thermal/bcm2835-thermal.c
  18
  19 Index: linux-3.10.49/arch/arm/mach-bcm2708/bcm2708.c
  20 ===================================================================
  21 --- linux-3.10.49.orig/arch/arm/mach-bcm2708/bcm2708.c  2014-09-27 11:40:40.999449257 -0700
  22 +++ linux-3.10.49/arch/arm/mach-bcm2708/bcm2708.c       2014-09-27 11:40:40.979449258 -0700
  23 @@ -562,6 +562,14 @@
  24         .resource = bcm2708_bsc1_resources,
  25  };
  26
  27 +static struct platform_device bcm2835_hwmon_device = {
  28 +       .name = "bcm2835_hwmon",
  29 +};
  30 +
  31 +static struct platform_device bcm2835_thermal_device = {
  32 +       .name = "bcm2835_thermal",
  33 +};
  34 +
  35  int __init bcm_register_device(struct platform_device *pdev)
  36  {
  37         int ret;
  38 @@ -682,6 +690,9 @@
  39         bcm_register_device(&bcm2708_bsc0_device);
  40         bcm_register_device(&bcm2708_bsc1_device);
  41
  42 +       bcm_register_device(&bcm2835_hwmon_device);
  43 +       bcm_register_device(&bcm2835_thermal_device);
  44 +
  45         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
  46                 struct amba_device *d = amba_devs[i];
  47                 amba_device_register(d, &iomem_resource);
  48 Index: linux-3.10.49/drivers/hwmon/Kconfig
  49 ===================================================================
  50 --- linux-3.10.49.orig/drivers/hwmon/Kconfig    2014-09-27 11:40:40.999449257 -0700
  51 +++ linux-3.10.49/drivers/hwmon/Kconfig 2014-09-27 11:40:40.979449258 -0700
  52 @@ -1537,6 +1537,16 @@
  53          help
  54            Support for the A/D converter on MC13783 and MC13892 PMIC.
  55
  56 +config SENSORS_BCM2835
  57 +       depends on THERMAL_BCM2835=n
  58 +       tristate "Broadcom BCM2835 HWMON Driver"
  59 +       help
  60 +         If you say yes here you get support for the hardware
  61 +         monitoring features of the BCM2835 Chip
  62 +
  63 +         This driver can also be built as a module.  If so, the module
  64 +         will be called bcm2835-hwmon.
  65 +
  66  if ACPI
  67
  68  comment "ACPI drivers"
  69 Index: linux-3.10.49/drivers/hwmon/bcm2835-hwmon.c
  70 ===================================================================
  71 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  72 +++ linux-3.10.49/drivers/hwmon/bcm2835-hwmon.c 2014-09-27 11:40:40.979449258 -0700
  73 @@ -0,0 +1,219 @@
  74 +/*****************************************************************************
  75 +* Copyright 2011 Broadcom Corporation.  All rights reserved.
  76 +*
  77 +* Unless you and Broadcom execute a separate written software license
  78 +* agreement governing use of this software, this software is licensed to you
  79 +* under the terms of the GNU General Public License version 2, available at
  80 +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
  81 +*
  82 +* Notwithstanding the above, under no circumstances may you combine this
  83 +* software in any way with any other Broadcom software provided under a
  84 +* license other than the GPL, without Broadcom's express prior written
  85 +* consent.
  86 +*****************************************************************************/
  87 +
  88 +#include <linux/kernel.h>
  89 +#include <linux/module.h>
  90 +#include <linux/init.h>
  91 +#include <linux/hwmon.h>
  92 +#include <linux/hwmon-sysfs.h>
  93 +#include <linux/platform_device.h>
  94 +#include <linux/sysfs.h>
  95 +#include <mach/vcio.h>
  96 +#include <linux/slab.h>
  97 +#include <linux/err.h>
  98 +
  99 +#define MODULE_NAME "bcm2835_hwmon"
 100 +
 101 +/*#define HWMON_DEBUG_ENABLE*/
 102 +
 103 +#ifdef HWMON_DEBUG_ENABLE
 104 +#define print_debug(fmt,...) printk(KERN_INFO "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
 105 +#else
 106 +#define print_debug(fmt,...)
 107 +#endif
 108 +#define print_err(fmt,...) printk(KERN_ERR "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__,__LINE__, ##__VA_ARGS__)
 109 +#define print_info(fmt,...) printk(KERN_INFO "%s: "fmt"\n", MODULE_NAME, ##__VA_ARGS__)
 110 +
 111 +#define VC_TAG_GET_TEMP 0x00030006
 112 +#define VC_TAG_GET_MAX_TEMP 0x0003000A
 113 +
 114 +/* --- STRUCTS --- */
 115 +struct bcm2835_hwmon_data {
 116 +       struct device *hwmon_dev;
 117 +};
 118 +
 119 +/* tag part of the message */
 120 +struct vc_msg_tag {
 121 +       uint32_t tag_id;                /* the tag ID for the temperature */
 122 +       uint32_t buffer_size;   /* size of the buffer (should be 8) */
 123 +       uint32_t request_code;  /* identifies message as a request (should be 0) */
 124 +       uint32_t id;                    /* extra ID field (should be 0) */
 125 +       uint32_t val;                   /* returned value of the temperature */
 126 +};
 127 +
 128 +/* message structure to be sent to videocore */
 129 +struct vc_msg {
 130 +       uint32_t msg_size;              /* simply, sizeof(struct vc_msg) */
 131 +       uint32_t request_code;          /* holds various information like the success and number of bytes returned (refer to mailboxes wiki) */
 132 +       struct vc_msg_tag tag;          /* the tag structure above to make */
 133 +       uint32_t end_tag;               /* an end identifier, should be set to NULL */
 134 +};
 135 +
 136 +typedef enum {
 137 +       TEMP,
 138 +       MAX_TEMP,
 139 +} temp_type;
 140 +
 141 +/* --- PROTOTYPES --- */
 142 +static ssize_t bcm2835_get_temp(struct device *dev, struct device_attribute *attr, char *buf);
 143 +static ssize_t bcm2835_get_name(struct device *dev, struct device_attribute *attr, char *buf);
 144 +
 145 +/* --- GLOBALS --- */
 146 +
 147 +static struct bcm2835_hwmon_data *bcm2835_data;
 148 +static struct platform_driver bcm2835_hwmon_driver;
 149 +
 150 +static SENSOR_DEVICE_ATTR(name, S_IRUGO,bcm2835_get_name,NULL,0);
 151 +static SENSOR_DEVICE_ATTR(temp1_input,S_IRUGO,bcm2835_get_temp,NULL,TEMP);
 152 +static SENSOR_DEVICE_ATTR(temp1_max,S_IRUGO,bcm2835_get_temp,NULL,MAX_TEMP);
 153 +
 154 +static struct attribute* bcm2835_attributes[] = {
 155 +       &sensor_dev_attr_name.dev_attr.attr,
 156 +       &sensor_dev_attr_temp1_input.dev_attr.attr,
 157 +       &sensor_dev_attr_temp1_max.dev_attr.attr,
 158 +       NULL,
 159 +};
 160 +
 161 +static struct attribute_group bcm2835_attr_group = {
 162 +       .attrs = bcm2835_attributes,
 163 +};
 164 +
 165 +/* --- FUNCTIONS --- */
 166 +
 167 +static ssize_t bcm2835_get_name(struct device *dev, struct device_attribute *attr, char *buf)
 168 +{
 169 +       return sprintf(buf,"bcm2835_hwmon\n");
 170 +}
 171 +
 172 +static ssize_t bcm2835_get_temp(struct device *dev, struct device_attribute *attr, char *buf)
 173 +{
 174 +       struct vc_msg msg;
 175 +       int result;
 176 +       uint temp = 0;
 177 +       int index = ((struct sensor_device_attribute*)to_sensor_dev_attr(attr))->index;
 178 +
 179 +       print_debug("IN");
 180 +
 181 +       /* wipe all previous message data */
 182 +       memset(&msg, 0, sizeof msg);
 183 +
 184 +       /* determine the message type */
 185 +       if(index == TEMP)
 186 +               msg.tag.tag_id = VC_TAG_GET_TEMP;
 187 +       else if (index == MAX_TEMP)
 188 +               msg.tag.tag_id = VC_TAG_GET_MAX_TEMP;
 189 +       else
 190 +       {
 191 +               print_debug("Unknown temperature message!");
 192 +               return -EINVAL;
 193 +       }
 194 +
 195 +       msg.msg_size = sizeof msg;
 196 +       msg.tag.buffer_size = 8;
 197 +
 198 +       /* send the message */
 199 +       result = bcm_mailbox_property(&msg, sizeof msg);
 200 +
 201 +       /* check if it was all ok and return the rate in milli degrees C */
 202 +       if (result == 0 && (msg.request_code & 0x80000000))
 203 +               temp = (uint)msg.tag.val;
 204 +       #ifdef HWMON_DEBUG_ENABLE
 205 +       else
 206 +               print_debug("Failed to get temperature!");
 207 +       #endif
 208 +       print_debug("Got temperature as %u",temp);
 209 +       print_debug("OUT");
 210 +       return sprintf(buf, "%u\n", temp);
 211 +}
 212 +
 213 +
 214 +static int bcm2835_hwmon_probe(struct platform_device *pdev)
 215 +{
 216 +       int err;
 217 +
 218 +       print_debug("IN");
 219 +       print_debug("HWMON Driver has been probed!");
 220 +
 221 +       /* check that the device isn't null!*/
 222 +       if(pdev == NULL)
 223 +       {
 224 +               print_debug("Platform device is empty!");
 225 +               return -ENODEV;
 226 +       }
 227 +
 228 +       /* allocate memory for neccessary data */
 229 +       bcm2835_data = kzalloc(sizeof(struct bcm2835_hwmon_data),GFP_KERNEL);
 230 +       if(!bcm2835_data)
 231 +       {
 232 +               print_debug("Unable to allocate memory for hwmon data!");
 233 +               err = -ENOMEM;
 234 +               goto kzalloc_error;
 235 +       }
 236 +
 237 +       /* create the sysfs files */
 238 +       if(sysfs_create_group(&pdev->dev.kobj, &bcm2835_attr_group))
 239 +       {
 240 +               print_debug("Unable to create sysfs files!");
 241 +               err = -EFAULT;
 242 +               goto sysfs_error;
 243 +       }
 244 +
 245 +       /* register the hwmon device */
 246 +       bcm2835_data->hwmon_dev = hwmon_device_register(&pdev->dev);
 247 +       if (IS_ERR(bcm2835_data->hwmon_dev))
 248 +       {
 249 +               err = PTR_ERR(bcm2835_data->hwmon_dev);
 250 +               goto hwmon_error;
 251 +       }
 252 +       print_debug("OUT");
 253 +       return 0;
 254 +
 255 +       /* error goto's */
 256 +       hwmon_error:
 257 +       sysfs_remove_group(&pdev->dev.kobj, &bcm2835_attr_group);
 258 +
 259 +       sysfs_error:
 260 +       kfree(bcm2835_data);
 261 +
 262 +       kzalloc_error:
 263 +
 264 +       return err;
 265 +
 266 +}
 267 +
 268 +static int bcm2835_hwmon_remove(struct platform_device *pdev)
 269 +{
 270 +       print_debug("IN");
 271 +       hwmon_device_unregister(bcm2835_data->hwmon_dev);
 272 +
 273 +       sysfs_remove_group(&pdev->dev.kobj, &bcm2835_attr_group);
 274 +       print_debug("OUT");
 275 +       return 0;
 276 +}
 277 +
 278 +/* Hwmon Driver */
 279 +static struct platform_driver bcm2835_hwmon_driver = {
 280 +       .probe = bcm2835_hwmon_probe,
 281 +       .remove = bcm2835_hwmon_remove,
 282 +       .driver = {
 283 +                               .name = "bcm2835_hwmon",
 284 +                               .owner = THIS_MODULE,
 285 +                       },
 286 +};
 287 +
 288 +MODULE_LICENSE("GPL");
 289 +MODULE_AUTHOR("Dorian Peake");
 290 +MODULE_DESCRIPTION("HW Monitor driver for bcm2835 chip");
 291 +
 292 +module_platform_driver(bcm2835_hwmon_driver);
 293 Index: linux-3.10.49/drivers/thermal/Kconfig
 294 ===================================================================
 295 --- linux-3.10.49.orig/drivers/thermal/Kconfig  2014-09-27 11:40:40.999449257 -0700
 296 +++ linux-3.10.49/drivers/thermal/Kconfig       2014-09-27 11:40:40.983449258 -0700
 297 @@ -169,4 +169,11 @@
 298           enforce idle time which results in more package C-state residency. The
 299           user interface is exposed via generic thermal framework.
 300
 301 +config THERMAL_BCM2835
 302 +       tristate "BCM2835 Thermal Driver"
 303 +       help
 304 +         This will enable temperature monitoring for the Broadcom BCM2835
 305 +         chip. If built as a module, it will be called 'bcm2835-thermal'.
 306 +
 307  endif
 308 +
 309 Index: linux-3.10.49/drivers/thermal/Makefile
 310 ===================================================================
 311 --- linux-3.10.49.orig/drivers/thermal/Makefile 2014-09-27 11:40:40.999449257 -0700
 312 +++ linux-3.10.49/drivers/thermal/Makefile      2014-09-27 11:40:40.983449258 -0700
 313 @@ -23,4 +23,5 @@
 314  obj-$(CONFIG_ARMADA_THERMAL)   += armada_thermal.o
 315  obj-$(CONFIG_DB8500_CPUFREQ_COOLING)   += db8500_cpufreq_cooling.o
 316  obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o
 317 +obj-$(CONFIG_THERMAL_BCM2835)  += bcm2835-thermal.o
 318
 319 Index: linux-3.10.49/drivers/thermal/bcm2835-thermal.c
 320 ===================================================================
 321 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
 322 +++ linux-3.10.49/drivers/thermal/bcm2835-thermal.c     2014-09-27 11:40:40.983449258 -0700
 323 @@ -0,0 +1,208 @@
 324 +/*****************************************************************************
 325 +* Copyright 2011 Broadcom Corporation.  All rights reserved.
 326 +*
 327 +* Unless you and Broadcom execute a separate written software license
 328 +* agreement governing use of this software, this software is licensed to you
 329 +* under the terms of the GNU General Public License version 2, available at
 330 +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
 331 +*
 332 +* Notwithstanding the above, under no circumstances may you combine this
 333 +* software in any way with any other Broadcom software provided under a
 334 +* license other than the GPL, without Broadcom's express prior written
 335 +* consent.
 336 +*****************************************************************************/
 337 +
 338 +#include <linux/kernel.h>
 339 +#include <linux/module.h>
 340 +#include <linux/init.h>
 341 +#include <linux/platform_device.h>
 342 +#include <linux/slab.h>
 343 +#include <linux/sysfs.h>
 344 +#include <mach/vcio.h>
 345 +#include <linux/thermal.h>
 346 +
 347 +
 348 +/* --- DEFINITIONS --- */
 349 +#define MODULE_NAME "bcm2835_thermal"
 350 +
 351 +/*#define THERMAL_DEBUG_ENABLE*/
 352 +
 353 +#ifdef THERMAL_DEBUG_ENABLE
 354 +#define print_debug(fmt,...) printk(KERN_INFO "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
 355 +#else
 356 +#define print_debug(fmt,...)
 357 +#endif
 358 +#define print_err(fmt,...) printk(KERN_ERR "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__,__LINE__, ##__VA_ARGS__)
 359 +#define print_info(fmt,...) printk(KERN_INFO "%s: "fmt"\n", MODULE_NAME, ##__VA_ARGS__)
 360 +
 361 +#define VC_TAG_GET_TEMP 0x00030006
 362 +#define VC_TAG_GET_MAX_TEMP 0x0003000A
 363 +
 364 +typedef enum {
 365 +       TEMP,
 366 +       MAX_TEMP,
 367 +} temp_type;
 368 +
 369 +/* --- STRUCTS --- */
 370 +/* tag part of the message */
 371 +struct vc_msg_tag {
 372 +       uint32_t tag_id;                /* the tag ID for the temperature */
 373 +       uint32_t buffer_size;   /* size of the buffer (should be 8) */
 374 +       uint32_t request_code;  /* identifies message as a request (should be 0) */
 375 +       uint32_t id;                    /* extra ID field (should be 0) */
 376 +       uint32_t val;                   /* returned value of the temperature */
 377 +};
 378 +
 379 +/* message structure to be sent to videocore */
 380 +struct vc_msg {
 381 +       uint32_t msg_size;              /* simply, sizeof(struct vc_msg) */
 382 +       uint32_t request_code;          /* holds various information like the success and number of bytes returned (refer to mailboxes wiki) */
 383 +       struct vc_msg_tag tag;          /* the tag structure above to make */
 384 +       uint32_t end_tag;               /* an end identifier, should be set to NULL */
 385 +};
 386 +
 387 +struct bcm2835_thermal_data {
 388 +       struct thermal_zone_device *thermal_dev;
 389 +       struct vc_msg msg;
 390 +};
 391 +
 392 +/* --- PROTOTYPES --- */
 393 +static int bcm2835_get_temp(struct thermal_zone_device *thermal_dev, unsigned long *);
 394 +static int bcm2835_get_max_temp(struct thermal_zone_device *thermal_dev, int, unsigned long *);
 395 +static int bcm2835_get_trip_type(struct thermal_zone_device *thermal_dev, int trip_num, enum thermal_trip_type *trip_type);
 396 +static int bcm2835_get_mode(struct thermal_zone_device *thermal_dev, enum thermal_device_mode *dev_mode);
 397 +
 398 +/* --- GLOBALS --- */
 399 +static struct bcm2835_thermal_data bcm2835_data;
 400 +
 401 +/* Thermal Device Operations */
 402 +static struct thermal_zone_device_ops ops;
 403 +
 404 +/* --- FUNCTIONS --- */
 405 +static int bcm2835_get_max_temp(struct thermal_zone_device *thermal_dev, int trip_num, unsigned long *temp)
 406 +{
 407 +       int result;
 408 +
 409 +       print_debug("IN");
 410 +
 411 +       /* wipe all previous message data */
 412 +       memset(&bcm2835_data.msg, 0, sizeof bcm2835_data.msg);
 413 +
 414 +       /* prepare message */
 415 +       bcm2835_data.msg.msg_size = sizeof bcm2835_data.msg;
 416 +       bcm2835_data.msg.tag.buffer_size = 8;
 417 +       bcm2835_data.msg.tag.tag_id = VC_TAG_GET_MAX_TEMP;
 418 +
 419 +       /* send the message */
 420 +       result = bcm_mailbox_property(&bcm2835_data.msg, sizeof bcm2835_data.msg);
 421 +
 422 +       /* check if it was all ok and return the rate in milli degrees C */
 423 +       if (result == 0 && (bcm2835_data.msg.request_code & 0x80000000))
 424 +               *temp = (uint)bcm2835_data.msg.tag.val;
 425 +       #ifdef THERMAL_DEBUG_ENABLE
 426 +       else
 427 +               print_debug("Failed to get temperature!");
 428 +       #endif
 429 +       print_debug("Got temperature as %u",(uint)*temp);
 430 +       print_debug("OUT");
 431 +       return 0;
 432 +}
 433 +
 434 +static int bcm2835_get_temp(struct thermal_zone_device *thermal_dev, unsigned long *temp)
 435 +{
 436 +       int result;
 437 +
 438 +       print_debug("IN");
 439 +
 440 +       /* wipe all previous message data */
 441 +       memset(&bcm2835_data.msg, 0, sizeof bcm2835_data.msg);
 442 +
 443 +       /* prepare message */
 444 +       bcm2835_data.msg.msg_size = sizeof bcm2835_data.msg;
 445 +       bcm2835_data.msg.tag.buffer_size = 8;
 446 +       bcm2835_data.msg.tag.tag_id = VC_TAG_GET_TEMP;
 447 +
 448 +       /* send the message */
 449 +       result = bcm_mailbox_property(&bcm2835_data.msg, sizeof bcm2835_data.msg);
 450 +
 451 +       /* check if it was all ok and return the rate in milli degrees C */
 452 +       if (result == 0 && (bcm2835_data.msg.request_code & 0x80000000))
 453 +               *temp = (uint)bcm2835_data.msg.tag.val;
 454 +       #ifdef THERMAL_DEBUG_ENABLE
 455 +       else
 456 +               print_debug("Failed to get temperature!");
 457 +       #endif
 458 +       print_debug("Got temperature as %u",(uint)*temp);
 459 +       print_debug("OUT");
 460 +       return 0;
 461 +}
 462 +
 463 +
 464 +static int bcm2835_get_trip_type(struct thermal_zone_device * thermal_dev, int trip_num, enum thermal_trip_type *trip_type)
 465 +{
 466 +       *trip_type = THERMAL_TRIP_HOT;
 467 +       return 0;
 468 +}
 469 +
 470 +
 471 +static int bcm2835_get_mode(struct thermal_zone_device *thermal_dev, enum thermal_device_mode *dev_mode)
 472 +{
 473 +       *dev_mode = THERMAL_DEVICE_ENABLED;
 474 +       return 0;
 475 +}
 476 +
 477 +
 478 +static int bcm2835_thermal_probe(struct platform_device *pdev)
 479 +{
 480 +       print_debug("IN");
 481 +       print_debug("THERMAL Driver has been probed!");
 482 +
 483 +       /* check that the device isn't null!*/
 484 +       if(pdev == NULL)
 485 +       {
 486 +               print_debug("Platform device is empty!");
 487 +               return -ENODEV;
 488 +       }
 489 +
 490 +       if(!(bcm2835_data.thermal_dev = thermal_zone_device_register("bcm2835_thermal",  1, 0, NULL, &ops, NULL, 0, 0)))
 491 +       {
 492 +               print_debug("Unable to register the thermal device!");
 493 +               return -EFAULT;
 494 +       }
 495 +       return 0;
 496 +}
 497 +
 498 +
 499 +static int bcm2835_thermal_remove(struct platform_device *pdev)
 500 +{
 501 +       print_debug("IN");
 502 +
 503 +       thermal_zone_device_unregister(bcm2835_data.thermal_dev);
 504 +
 505 +       print_debug("OUT");
 506 +
 507 +       return 0;
 508 +}
 509 +
 510 +static struct thermal_zone_device_ops ops  = {
 511 +       .get_temp = bcm2835_get_temp,
 512 +       .get_trip_temp = bcm2835_get_max_temp,
 513 +       .get_trip_type = bcm2835_get_trip_type,
 514 +       .get_mode = bcm2835_get_mode,
 515 +};
 516 +
 517 +/* Thermal Driver */
 518 +static struct platform_driver bcm2835_thermal_driver = {
 519 +       .probe = bcm2835_thermal_probe,
 520 +       .remove = bcm2835_thermal_remove,
 521 +       .driver = {
 522 +                               .name = "bcm2835_thermal",
 523 +                               .owner = THIS_MODULE,
 524 +                       },
 525 +};
 526 +
 527 +MODULE_LICENSE("GPL");
 528 +MODULE_AUTHOR("Dorian Peake");
 529 +MODULE_DESCRIPTION("Thermal driver for bcm2835 chip");
 530 +
 531 +module_platform_driver(bcm2835_thermal_driver);