532 lines
17 KiB
Diff
532 lines
17 KiB
Diff
From 4c7d4bffe1986d856b37460f87950dabe29c616e Mon Sep 17 00:00:00 2001
|
|
From: popcornmix <popcornmix@gmail.com>
|
|
Date: Tue, 26 Mar 2013 19:24:24 +0000
|
|
Subject: [PATCH 033/196] Added hwmon/thermal driver for reporting core
|
|
temperature. Thanks Dorian
|
|
|
|
---
|
|
arch/arm/mach-bcm2708/bcm2708.c | 11 ++
|
|
drivers/hwmon/Kconfig | 10 ++
|
|
drivers/hwmon/Makefile | 1 +
|
|
drivers/hwmon/bcm2835-hwmon.c | 219 ++++++++++++++++++++++++++++++++++++++
|
|
drivers/thermal/Kconfig | 7 ++
|
|
drivers/thermal/Makefile | 1 +
|
|
drivers/thermal/bcm2835-thermal.c | 208 ++++++++++++++++++++++++++++++++++++
|
|
7 files changed, 457 insertions(+)
|
|
create mode 100644 drivers/hwmon/bcm2835-hwmon.c
|
|
create mode 100644 drivers/thermal/bcm2835-thermal.c
|
|
|
|
Index: linux-3.10.49/arch/arm/mach-bcm2708/bcm2708.c
|
|
===================================================================
|
|
--- linux-3.10.49.orig/arch/arm/mach-bcm2708/bcm2708.c 2014-09-27 11:40:40.999449257 -0700
|
|
+++ linux-3.10.49/arch/arm/mach-bcm2708/bcm2708.c 2014-09-27 11:40:40.979449258 -0700
|
|
@@ -562,6 +562,14 @@
|
|
.resource = bcm2708_bsc1_resources,
|
|
};
|
|
|
|
+static struct platform_device bcm2835_hwmon_device = {
|
|
+ .name = "bcm2835_hwmon",
|
|
+};
|
|
+
|
|
+static struct platform_device bcm2835_thermal_device = {
|
|
+ .name = "bcm2835_thermal",
|
|
+};
|
|
+
|
|
int __init bcm_register_device(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
@@ -682,6 +690,9 @@
|
|
bcm_register_device(&bcm2708_bsc0_device);
|
|
bcm_register_device(&bcm2708_bsc1_device);
|
|
|
|
+ bcm_register_device(&bcm2835_hwmon_device);
|
|
+ bcm_register_device(&bcm2835_thermal_device);
|
|
+
|
|
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
|
|
struct amba_device *d = amba_devs[i];
|
|
amba_device_register(d, &iomem_resource);
|
|
Index: linux-3.10.49/drivers/hwmon/Kconfig
|
|
===================================================================
|
|
--- linux-3.10.49.orig/drivers/hwmon/Kconfig 2014-09-27 11:40:40.999449257 -0700
|
|
+++ linux-3.10.49/drivers/hwmon/Kconfig 2014-09-27 11:40:40.979449258 -0700
|
|
@@ -1537,6 +1537,16 @@
|
|
help
|
|
Support for the A/D converter on MC13783 and MC13892 PMIC.
|
|
|
|
+config SENSORS_BCM2835
|
|
+ depends on THERMAL_BCM2835=n
|
|
+ tristate "Broadcom BCM2835 HWMON Driver"
|
|
+ help
|
|
+ If you say yes here you get support for the hardware
|
|
+ monitoring features of the BCM2835 Chip
|
|
+
|
|
+ This driver can also be built as a module. If so, the module
|
|
+ will be called bcm2835-hwmon.
|
|
+
|
|
if ACPI
|
|
|
|
comment "ACPI drivers"
|
|
Index: linux-3.10.49/drivers/hwmon/bcm2835-hwmon.c
|
|
===================================================================
|
|
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
|
|
+++ linux-3.10.49/drivers/hwmon/bcm2835-hwmon.c 2014-09-27 11:40:40.979449258 -0700
|
|
@@ -0,0 +1,219 @@
|
|
+/*****************************************************************************
|
|
+* Copyright 2011 Broadcom Corporation. All rights reserved.
|
|
+*
|
|
+* Unless you and Broadcom execute a separate written software license
|
|
+* agreement governing use of this software, this software is licensed to you
|
|
+* under the terms of the GNU General Public License version 2, available at
|
|
+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
|
|
+*
|
|
+* Notwithstanding the above, under no circumstances may you combine this
|
|
+* software in any way with any other Broadcom software provided under a
|
|
+* license other than the GPL, without Broadcom's express prior written
|
|
+* consent.
|
|
+*****************************************************************************/
|
|
+
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/hwmon.h>
|
|
+#include <linux/hwmon-sysfs.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <linux/sysfs.h>
|
|
+#include <mach/vcio.h>
|
|
+#include <linux/slab.h>
|
|
+#include <linux/err.h>
|
|
+
|
|
+#define MODULE_NAME "bcm2835_hwmon"
|
|
+
|
|
+/*#define HWMON_DEBUG_ENABLE*/
|
|
+
|
|
+#ifdef HWMON_DEBUG_ENABLE
|
|
+#define print_debug(fmt,...) printk(KERN_INFO "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
|
|
+#else
|
|
+#define print_debug(fmt,...)
|
|
+#endif
|
|
+#define print_err(fmt,...) printk(KERN_ERR "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__,__LINE__, ##__VA_ARGS__)
|
|
+#define print_info(fmt,...) printk(KERN_INFO "%s: "fmt"\n", MODULE_NAME, ##__VA_ARGS__)
|
|
+
|
|
+#define VC_TAG_GET_TEMP 0x00030006
|
|
+#define VC_TAG_GET_MAX_TEMP 0x0003000A
|
|
+
|
|
+/* --- STRUCTS --- */
|
|
+struct bcm2835_hwmon_data {
|
|
+ struct device *hwmon_dev;
|
|
+};
|
|
+
|
|
+/* tag part of the message */
|
|
+struct vc_msg_tag {
|
|
+ uint32_t tag_id; /* the tag ID for the temperature */
|
|
+ uint32_t buffer_size; /* size of the buffer (should be 8) */
|
|
+ uint32_t request_code; /* identifies message as a request (should be 0) */
|
|
+ uint32_t id; /* extra ID field (should be 0) */
|
|
+ uint32_t val; /* returned value of the temperature */
|
|
+};
|
|
+
|
|
+/* message structure to be sent to videocore */
|
|
+struct vc_msg {
|
|
+ uint32_t msg_size; /* simply, sizeof(struct vc_msg) */
|
|
+ uint32_t request_code; /* holds various information like the success and number of bytes returned (refer to mailboxes wiki) */
|
|
+ struct vc_msg_tag tag; /* the tag structure above to make */
|
|
+ uint32_t end_tag; /* an end identifier, should be set to NULL */
|
|
+};
|
|
+
|
|
+typedef enum {
|
|
+ TEMP,
|
|
+ MAX_TEMP,
|
|
+} temp_type;
|
|
+
|
|
+/* --- PROTOTYPES --- */
|
|
+static ssize_t bcm2835_get_temp(struct device *dev, struct device_attribute *attr, char *buf);
|
|
+static ssize_t bcm2835_get_name(struct device *dev, struct device_attribute *attr, char *buf);
|
|
+
|
|
+/* --- GLOBALS --- */
|
|
+
|
|
+static struct bcm2835_hwmon_data *bcm2835_data;
|
|
+static struct platform_driver bcm2835_hwmon_driver;
|
|
+
|
|
+static SENSOR_DEVICE_ATTR(name, S_IRUGO,bcm2835_get_name,NULL,0);
|
|
+static SENSOR_DEVICE_ATTR(temp1_input,S_IRUGO,bcm2835_get_temp,NULL,TEMP);
|
|
+static SENSOR_DEVICE_ATTR(temp1_max,S_IRUGO,bcm2835_get_temp,NULL,MAX_TEMP);
|
|
+
|
|
+static struct attribute* bcm2835_attributes[] = {
|
|
+ &sensor_dev_attr_name.dev_attr.attr,
|
|
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
|
|
+ NULL,
|
|
+};
|
|
+
|
|
+static struct attribute_group bcm2835_attr_group = {
|
|
+ .attrs = bcm2835_attributes,
|
|
+};
|
|
+
|
|
+/* --- FUNCTIONS --- */
|
|
+
|
|
+static ssize_t bcm2835_get_name(struct device *dev, struct device_attribute *attr, char *buf)
|
|
+{
|
|
+ return sprintf(buf,"bcm2835_hwmon\n");
|
|
+}
|
|
+
|
|
+static ssize_t bcm2835_get_temp(struct device *dev, struct device_attribute *attr, char *buf)
|
|
+{
|
|
+ struct vc_msg msg;
|
|
+ int result;
|
|
+ uint temp = 0;
|
|
+ int index = ((struct sensor_device_attribute*)to_sensor_dev_attr(attr))->index;
|
|
+
|
|
+ print_debug("IN");
|
|
+
|
|
+ /* wipe all previous message data */
|
|
+ memset(&msg, 0, sizeof msg);
|
|
+
|
|
+ /* determine the message type */
|
|
+ if(index == TEMP)
|
|
+ msg.tag.tag_id = VC_TAG_GET_TEMP;
|
|
+ else if (index == MAX_TEMP)
|
|
+ msg.tag.tag_id = VC_TAG_GET_MAX_TEMP;
|
|
+ else
|
|
+ {
|
|
+ print_debug("Unknown temperature message!");
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ msg.msg_size = sizeof msg;
|
|
+ msg.tag.buffer_size = 8;
|
|
+
|
|
+ /* send the message */
|
|
+ result = bcm_mailbox_property(&msg, sizeof msg);
|
|
+
|
|
+ /* check if it was all ok and return the rate in milli degrees C */
|
|
+ if (result == 0 && (msg.request_code & 0x80000000))
|
|
+ temp = (uint)msg.tag.val;
|
|
+ #ifdef HWMON_DEBUG_ENABLE
|
|
+ else
|
|
+ print_debug("Failed to get temperature!");
|
|
+ #endif
|
|
+ print_debug("Got temperature as %u",temp);
|
|
+ print_debug("OUT");
|
|
+ return sprintf(buf, "%u\n", temp);
|
|
+}
|
|
+
|
|
+
|
|
+static int bcm2835_hwmon_probe(struct platform_device *pdev)
|
|
+{
|
|
+ int err;
|
|
+
|
|
+ print_debug("IN");
|
|
+ print_debug("HWMON Driver has been probed!");
|
|
+
|
|
+ /* check that the device isn't null!*/
|
|
+ if(pdev == NULL)
|
|
+ {
|
|
+ print_debug("Platform device is empty!");
|
|
+ return -ENODEV;
|
|
+ }
|
|
+
|
|
+ /* allocate memory for neccessary data */
|
|
+ bcm2835_data = kzalloc(sizeof(struct bcm2835_hwmon_data),GFP_KERNEL);
|
|
+ if(!bcm2835_data)
|
|
+ {
|
|
+ print_debug("Unable to allocate memory for hwmon data!");
|
|
+ err = -ENOMEM;
|
|
+ goto kzalloc_error;
|
|
+ }
|
|
+
|
|
+ /* create the sysfs files */
|
|
+ if(sysfs_create_group(&pdev->dev.kobj, &bcm2835_attr_group))
|
|
+ {
|
|
+ print_debug("Unable to create sysfs files!");
|
|
+ err = -EFAULT;
|
|
+ goto sysfs_error;
|
|
+ }
|
|
+
|
|
+ /* register the hwmon device */
|
|
+ bcm2835_data->hwmon_dev = hwmon_device_register(&pdev->dev);
|
|
+ if (IS_ERR(bcm2835_data->hwmon_dev))
|
|
+ {
|
|
+ err = PTR_ERR(bcm2835_data->hwmon_dev);
|
|
+ goto hwmon_error;
|
|
+ }
|
|
+ print_debug("OUT");
|
|
+ return 0;
|
|
+
|
|
+ /* error goto's */
|
|
+ hwmon_error:
|
|
+ sysfs_remove_group(&pdev->dev.kobj, &bcm2835_attr_group);
|
|
+
|
|
+ sysfs_error:
|
|
+ kfree(bcm2835_data);
|
|
+
|
|
+ kzalloc_error:
|
|
+
|
|
+ return err;
|
|
+
|
|
+}
|
|
+
|
|
+static int bcm2835_hwmon_remove(struct platform_device *pdev)
|
|
+{
|
|
+ print_debug("IN");
|
|
+ hwmon_device_unregister(bcm2835_data->hwmon_dev);
|
|
+
|
|
+ sysfs_remove_group(&pdev->dev.kobj, &bcm2835_attr_group);
|
|
+ print_debug("OUT");
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+/* Hwmon Driver */
|
|
+static struct platform_driver bcm2835_hwmon_driver = {
|
|
+ .probe = bcm2835_hwmon_probe,
|
|
+ .remove = bcm2835_hwmon_remove,
|
|
+ .driver = {
|
|
+ .name = "bcm2835_hwmon",
|
|
+ .owner = THIS_MODULE,
|
|
+ },
|
|
+};
|
|
+
|
|
+MODULE_LICENSE("GPL");
|
|
+MODULE_AUTHOR("Dorian Peake");
|
|
+MODULE_DESCRIPTION("HW Monitor driver for bcm2835 chip");
|
|
+
|
|
+module_platform_driver(bcm2835_hwmon_driver);
|
|
Index: linux-3.10.49/drivers/thermal/Kconfig
|
|
===================================================================
|
|
--- linux-3.10.49.orig/drivers/thermal/Kconfig 2014-09-27 11:40:40.999449257 -0700
|
|
+++ linux-3.10.49/drivers/thermal/Kconfig 2014-09-27 11:40:40.983449258 -0700
|
|
@@ -169,4 +169,11 @@
|
|
enforce idle time which results in more package C-state residency. The
|
|
user interface is exposed via generic thermal framework.
|
|
|
|
+config THERMAL_BCM2835
|
|
+ tristate "BCM2835 Thermal Driver"
|
|
+ help
|
|
+ This will enable temperature monitoring for the Broadcom BCM2835
|
|
+ chip. If built as a module, it will be called 'bcm2835-thermal'.
|
|
+
|
|
endif
|
|
+
|
|
Index: linux-3.10.49/drivers/thermal/Makefile
|
|
===================================================================
|
|
--- linux-3.10.49.orig/drivers/thermal/Makefile 2014-09-27 11:40:40.999449257 -0700
|
|
+++ linux-3.10.49/drivers/thermal/Makefile 2014-09-27 11:40:40.983449258 -0700
|
|
@@ -23,4 +23,5 @@
|
|
obj-$(CONFIG_ARMADA_THERMAL) += armada_thermal.o
|
|
obj-$(CONFIG_DB8500_CPUFREQ_COOLING) += db8500_cpufreq_cooling.o
|
|
obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o
|
|
+obj-$(CONFIG_THERMAL_BCM2835) += bcm2835-thermal.o
|
|
|
|
Index: linux-3.10.49/drivers/thermal/bcm2835-thermal.c
|
|
===================================================================
|
|
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
|
|
+++ linux-3.10.49/drivers/thermal/bcm2835-thermal.c 2014-09-27 11:40:40.983449258 -0700
|
|
@@ -0,0 +1,208 @@
|
|
+/*****************************************************************************
|
|
+* Copyright 2011 Broadcom Corporation. All rights reserved.
|
|
+*
|
|
+* Unless you and Broadcom execute a separate written software license
|
|
+* agreement governing use of this software, this software is licensed to you
|
|
+* under the terms of the GNU General Public License version 2, available at
|
|
+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
|
|
+*
|
|
+* Notwithstanding the above, under no circumstances may you combine this
|
|
+* software in any way with any other Broadcom software provided under a
|
|
+* license other than the GPL, without Broadcom's express prior written
|
|
+* consent.
|
|
+*****************************************************************************/
|
|
+
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <linux/slab.h>
|
|
+#include <linux/sysfs.h>
|
|
+#include <mach/vcio.h>
|
|
+#include <linux/thermal.h>
|
|
+
|
|
+
|
|
+/* --- DEFINITIONS --- */
|
|
+#define MODULE_NAME "bcm2835_thermal"
|
|
+
|
|
+/*#define THERMAL_DEBUG_ENABLE*/
|
|
+
|
|
+#ifdef THERMAL_DEBUG_ENABLE
|
|
+#define print_debug(fmt,...) printk(KERN_INFO "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
|
|
+#else
|
|
+#define print_debug(fmt,...)
|
|
+#endif
|
|
+#define print_err(fmt,...) printk(KERN_ERR "%s:%s:%d: "fmt"\n", MODULE_NAME, __func__,__LINE__, ##__VA_ARGS__)
|
|
+#define print_info(fmt,...) printk(KERN_INFO "%s: "fmt"\n", MODULE_NAME, ##__VA_ARGS__)
|
|
+
|
|
+#define VC_TAG_GET_TEMP 0x00030006
|
|
+#define VC_TAG_GET_MAX_TEMP 0x0003000A
|
|
+
|
|
+typedef enum {
|
|
+ TEMP,
|
|
+ MAX_TEMP,
|
|
+} temp_type;
|
|
+
|
|
+/* --- STRUCTS --- */
|
|
+/* tag part of the message */
|
|
+struct vc_msg_tag {
|
|
+ uint32_t tag_id; /* the tag ID for the temperature */
|
|
+ uint32_t buffer_size; /* size of the buffer (should be 8) */
|
|
+ uint32_t request_code; /* identifies message as a request (should be 0) */
|
|
+ uint32_t id; /* extra ID field (should be 0) */
|
|
+ uint32_t val; /* returned value of the temperature */
|
|
+};
|
|
+
|
|
+/* message structure to be sent to videocore */
|
|
+struct vc_msg {
|
|
+ uint32_t msg_size; /* simply, sizeof(struct vc_msg) */
|
|
+ uint32_t request_code; /* holds various information like the success and number of bytes returned (refer to mailboxes wiki) */
|
|
+ struct vc_msg_tag tag; /* the tag structure above to make */
|
|
+ uint32_t end_tag; /* an end identifier, should be set to NULL */
|
|
+};
|
|
+
|
|
+struct bcm2835_thermal_data {
|
|
+ struct thermal_zone_device *thermal_dev;
|
|
+ struct vc_msg msg;
|
|
+};
|
|
+
|
|
+/* --- PROTOTYPES --- */
|
|
+static int bcm2835_get_temp(struct thermal_zone_device *thermal_dev, unsigned long *);
|
|
+static int bcm2835_get_max_temp(struct thermal_zone_device *thermal_dev, int, unsigned long *);
|
|
+static int bcm2835_get_trip_type(struct thermal_zone_device *thermal_dev, int trip_num, enum thermal_trip_type *trip_type);
|
|
+static int bcm2835_get_mode(struct thermal_zone_device *thermal_dev, enum thermal_device_mode *dev_mode);
|
|
+
|
|
+/* --- GLOBALS --- */
|
|
+static struct bcm2835_thermal_data bcm2835_data;
|
|
+
|
|
+/* Thermal Device Operations */
|
|
+static struct thermal_zone_device_ops ops;
|
|
+
|
|
+/* --- FUNCTIONS --- */
|
|
+static int bcm2835_get_max_temp(struct thermal_zone_device *thermal_dev, int trip_num, unsigned long *temp)
|
|
+{
|
|
+ int result;
|
|
+
|
|
+ print_debug("IN");
|
|
+
|
|
+ /* wipe all previous message data */
|
|
+ memset(&bcm2835_data.msg, 0, sizeof bcm2835_data.msg);
|
|
+
|
|
+ /* prepare message */
|
|
+ bcm2835_data.msg.msg_size = sizeof bcm2835_data.msg;
|
|
+ bcm2835_data.msg.tag.buffer_size = 8;
|
|
+ bcm2835_data.msg.tag.tag_id = VC_TAG_GET_MAX_TEMP;
|
|
+
|
|
+ /* send the message */
|
|
+ result = bcm_mailbox_property(&bcm2835_data.msg, sizeof bcm2835_data.msg);
|
|
+
|
|
+ /* check if it was all ok and return the rate in milli degrees C */
|
|
+ if (result == 0 && (bcm2835_data.msg.request_code & 0x80000000))
|
|
+ *temp = (uint)bcm2835_data.msg.tag.val;
|
|
+ #ifdef THERMAL_DEBUG_ENABLE
|
|
+ else
|
|
+ print_debug("Failed to get temperature!");
|
|
+ #endif
|
|
+ print_debug("Got temperature as %u",(uint)*temp);
|
|
+ print_debug("OUT");
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int bcm2835_get_temp(struct thermal_zone_device *thermal_dev, unsigned long *temp)
|
|
+{
|
|
+ int result;
|
|
+
|
|
+ print_debug("IN");
|
|
+
|
|
+ /* wipe all previous message data */
|
|
+ memset(&bcm2835_data.msg, 0, sizeof bcm2835_data.msg);
|
|
+
|
|
+ /* prepare message */
|
|
+ bcm2835_data.msg.msg_size = sizeof bcm2835_data.msg;
|
|
+ bcm2835_data.msg.tag.buffer_size = 8;
|
|
+ bcm2835_data.msg.tag.tag_id = VC_TAG_GET_TEMP;
|
|
+
|
|
+ /* send the message */
|
|
+ result = bcm_mailbox_property(&bcm2835_data.msg, sizeof bcm2835_data.msg);
|
|
+
|
|
+ /* check if it was all ok and return the rate in milli degrees C */
|
|
+ if (result == 0 && (bcm2835_data.msg.request_code & 0x80000000))
|
|
+ *temp = (uint)bcm2835_data.msg.tag.val;
|
|
+ #ifdef THERMAL_DEBUG_ENABLE
|
|
+ else
|
|
+ print_debug("Failed to get temperature!");
|
|
+ #endif
|
|
+ print_debug("Got temperature as %u",(uint)*temp);
|
|
+ print_debug("OUT");
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
+static int bcm2835_get_trip_type(struct thermal_zone_device * thermal_dev, int trip_num, enum thermal_trip_type *trip_type)
|
|
+{
|
|
+ *trip_type = THERMAL_TRIP_HOT;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
+static int bcm2835_get_mode(struct thermal_zone_device *thermal_dev, enum thermal_device_mode *dev_mode)
|
|
+{
|
|
+ *dev_mode = THERMAL_DEVICE_ENABLED;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
+static int bcm2835_thermal_probe(struct platform_device *pdev)
|
|
+{
|
|
+ print_debug("IN");
|
|
+ print_debug("THERMAL Driver has been probed!");
|
|
+
|
|
+ /* check that the device isn't null!*/
|
|
+ if(pdev == NULL)
|
|
+ {
|
|
+ print_debug("Platform device is empty!");
|
|
+ return -ENODEV;
|
|
+ }
|
|
+
|
|
+ if(!(bcm2835_data.thermal_dev = thermal_zone_device_register("bcm2835_thermal", 1, 0, NULL, &ops, NULL, 0, 0)))
|
|
+ {
|
|
+ print_debug("Unable to register the thermal device!");
|
|
+ return -EFAULT;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
+static int bcm2835_thermal_remove(struct platform_device *pdev)
|
|
+{
|
|
+ print_debug("IN");
|
|
+
|
|
+ thermal_zone_device_unregister(bcm2835_data.thermal_dev);
|
|
+
|
|
+ print_debug("OUT");
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static struct thermal_zone_device_ops ops = {
|
|
+ .get_temp = bcm2835_get_temp,
|
|
+ .get_trip_temp = bcm2835_get_max_temp,
|
|
+ .get_trip_type = bcm2835_get_trip_type,
|
|
+ .get_mode = bcm2835_get_mode,
|
|
+};
|
|
+
|
|
+/* Thermal Driver */
|
|
+static struct platform_driver bcm2835_thermal_driver = {
|
|
+ .probe = bcm2835_thermal_probe,
|
|
+ .remove = bcm2835_thermal_remove,
|
|
+ .driver = {
|
|
+ .name = "bcm2835_thermal",
|
|
+ .owner = THIS_MODULE,
|
|
+ },
|
|
+};
|
|
+
|
|
+MODULE_LICENSE("GPL");
|
|
+MODULE_AUTHOR("Dorian Peake");
|
|
+MODULE_DESCRIPTION("Thermal driver for bcm2835 chip");
|
|
+
|
|
+module_platform_driver(bcm2835_thermal_driver);
|