687 lines
16 KiB
C
687 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* INT3400 thermal driver
|
|
*
|
|
* Copyright (C) 2014, Intel Corporation
|
|
* Authors: Zhang Rui <rui.zhang@intel.com>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/acpi.h>
|
|
#include <linux/thermal.h>
|
|
#include "acpi_thermal_rel.h"
|
|
|
|
#define INT3400_THERMAL_TABLE_CHANGED 0x83
|
|
#define INT3400_ODVP_CHANGED 0x88
|
|
#define INT3400_KEEP_ALIVE 0xA0
|
|
|
|
enum int3400_thermal_uuid {
|
|
INT3400_THERMAL_ACTIVE = 0,
|
|
INT3400_THERMAL_PASSIVE_1,
|
|
INT3400_THERMAL_CRITICAL,
|
|
INT3400_THERMAL_ADAPTIVE_PERFORMANCE,
|
|
INT3400_THERMAL_EMERGENCY_CALL_MODE,
|
|
INT3400_THERMAL_PASSIVE_2,
|
|
INT3400_THERMAL_POWER_BOSS,
|
|
INT3400_THERMAL_VIRTUAL_SENSOR,
|
|
INT3400_THERMAL_COOLING_MODE,
|
|
INT3400_THERMAL_HARDWARE_DUTY_CYCLING,
|
|
INT3400_THERMAL_MAXIMUM_UUID,
|
|
};
|
|
|
|
static char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = {
|
|
"3A95C389-E4B8-4629-A526-C52C88626BAE",
|
|
"42A441D6-AE6A-462b-A84B-4A8CE79027D3",
|
|
"97C68AE7-15FA-499c-B8C9-5DA81D606E0A",
|
|
"63BE270F-1C11-48FD-A6F7-3AF253FF3E2D",
|
|
"5349962F-71E6-431D-9AE8-0A635B710AEE",
|
|
"9E04115A-AE87-4D1C-9500-0F3E340BFE75",
|
|
"F5A35014-C209-46A4-993A-EB56DE7530A1",
|
|
"6ED722A7-9240-48A5-B479-31EEF723D7CF",
|
|
"16CAF1B7-DD38-40ED-B1C1-1B8A1913D531",
|
|
"BE84BABF-C4D4-403D-B495-3128FD44dAC1",
|
|
};
|
|
|
|
struct odvp_attr;
|
|
|
|
struct int3400_thermal_priv {
|
|
struct acpi_device *adev;
|
|
struct platform_device *pdev;
|
|
struct thermal_zone_device *thermal;
|
|
int art_count;
|
|
struct art *arts;
|
|
int trt_count;
|
|
struct trt *trts;
|
|
u32 uuid_bitmap;
|
|
int rel_misc_dev_res;
|
|
int current_uuid_index;
|
|
char *data_vault;
|
|
int odvp_count;
|
|
int *odvp;
|
|
u32 os_uuid_mask;
|
|
struct odvp_attr *odvp_attrs;
|
|
};
|
|
|
|
static int evaluate_odvp(struct int3400_thermal_priv *priv);
|
|
|
|
struct odvp_attr {
|
|
int odvp;
|
|
struct int3400_thermal_priv *priv;
|
|
struct device_attribute attr;
|
|
};
|
|
|
|
static ssize_t data_vault_read(struct file *file, struct kobject *kobj,
|
|
struct bin_attribute *attr, char *buf, loff_t off, size_t count)
|
|
{
|
|
memcpy(buf, attr->private + off, count);
|
|
return count;
|
|
}
|
|
|
|
static BIN_ATTR_RO(data_vault, 0);
|
|
|
|
static struct bin_attribute *data_attributes[] = {
|
|
&bin_attr_data_vault,
|
|
NULL,
|
|
};
|
|
|
|
static ssize_t imok_store(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
|
|
acpi_status status;
|
|
int input, ret;
|
|
|
|
ret = kstrtouint(buf, 10, &input);
|
|
if (ret)
|
|
return ret;
|
|
status = acpi_execute_simple_method(priv->adev->handle, "IMOK", input);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_WO(imok);
|
|
|
|
static struct attribute *imok_attr[] = {
|
|
&dev_attr_imok.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group imok_attribute_group = {
|
|
.attrs = imok_attr,
|
|
};
|
|
|
|
static const struct attribute_group data_attribute_group = {
|
|
.bin_attrs = data_attributes,
|
|
};
|
|
|
|
static ssize_t available_uuids_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
|
|
int i;
|
|
int length = 0;
|
|
|
|
if (!priv->uuid_bitmap)
|
|
return sprintf(buf, "UNKNOWN\n");
|
|
|
|
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
|
|
if (priv->uuid_bitmap & (1 << i))
|
|
length += scnprintf(&buf[length],
|
|
PAGE_SIZE - length,
|
|
"%s\n",
|
|
int3400_thermal_uuids[i]);
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
static ssize_t current_uuid_show(struct device *dev,
|
|
struct device_attribute *devattr, char *buf)
|
|
{
|
|
struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
|
|
int i, length = 0;
|
|
|
|
if (priv->current_uuid_index > 0)
|
|
return sprintf(buf, "%s\n",
|
|
int3400_thermal_uuids[priv->current_uuid_index]);
|
|
|
|
for (i = 0; i <= INT3400_THERMAL_CRITICAL; i++) {
|
|
if (priv->os_uuid_mask & BIT(i))
|
|
length += scnprintf(&buf[length],
|
|
PAGE_SIZE - length,
|
|
"%s\n",
|
|
int3400_thermal_uuids[i]);
|
|
}
|
|
|
|
if (length)
|
|
return length;
|
|
|
|
return sprintf(buf, "INVALID\n");
|
|
}
|
|
|
|
static int int3400_thermal_run_osc(acpi_handle handle, char *uuid_str, int *enable)
|
|
{
|
|
u32 ret, buf[2];
|
|
acpi_status status;
|
|
int result = 0;
|
|
struct acpi_osc_context context = {
|
|
.uuid_str = uuid_str,
|
|
.rev = 1,
|
|
.cap.length = 8,
|
|
.cap.pointer = buf,
|
|
};
|
|
|
|
buf[OSC_QUERY_DWORD] = 0;
|
|
buf[OSC_SUPPORT_DWORD] = *enable;
|
|
|
|
status = acpi_run_osc(handle, &context);
|
|
if (ACPI_SUCCESS(status)) {
|
|
ret = *((u32 *)(context.ret.pointer + 4));
|
|
if (ret != *enable)
|
|
result = -EPERM;
|
|
|
|
kfree(context.ret.pointer);
|
|
} else
|
|
result = -EPERM;
|
|
|
|
return result;
|
|
}
|
|
|
|
static int set_os_uuid_mask(struct int3400_thermal_priv *priv, u32 mask)
|
|
{
|
|
int cap = 0;
|
|
|
|
/*
|
|
* Capability bits:
|
|
* Bit 0: set to 1 to indicate DPTF is active
|
|
* Bi1 1: set to 1 to active cooling is supported by user space daemon
|
|
* Bit 2: set to 1 to passive cooling is supported by user space daemon
|
|
* Bit 3: set to 1 to critical trip is handled by user space daemon
|
|
*/
|
|
if (mask)
|
|
cap = (priv->os_uuid_mask << 1) | 0x01;
|
|
|
|
return int3400_thermal_run_osc(priv->adev->handle,
|
|
"b23ba85d-c8b7-3542-88de-8de2ffcfd698",
|
|
&cap);
|
|
}
|
|
|
|
static ssize_t current_uuid_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
|
|
int ret, i;
|
|
|
|
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; ++i) {
|
|
if (!strncmp(buf, int3400_thermal_uuids[i],
|
|
sizeof(int3400_thermal_uuids[i]) - 1)) {
|
|
/*
|
|
* If we have a list of supported UUIDs, make sure
|
|
* this one is supported.
|
|
*/
|
|
if (priv->uuid_bitmap & BIT(i)) {
|
|
priv->current_uuid_index = i;
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* There is support of only 3 policies via the new
|
|
* _OSC to inform OS capability:
|
|
* INT3400_THERMAL_ACTIVE
|
|
* INT3400_THERMAL_PASSIVE_1
|
|
* INT3400_THERMAL_CRITICAL
|
|
*/
|
|
|
|
if (i > INT3400_THERMAL_CRITICAL)
|
|
return -EINVAL;
|
|
|
|
priv->os_uuid_mask |= BIT(i);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (priv->os_uuid_mask) {
|
|
ret = set_os_uuid_mask(priv, priv->os_uuid_mask);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(current_uuid);
|
|
static DEVICE_ATTR_RO(available_uuids);
|
|
static struct attribute *uuid_attrs[] = {
|
|
&dev_attr_available_uuids.attr,
|
|
&dev_attr_current_uuid.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group uuid_attribute_group = {
|
|
.attrs = uuid_attrs,
|
|
.name = "uuids"
|
|
};
|
|
|
|
static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv)
|
|
{
|
|
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL};
|
|
union acpi_object *obja, *objb;
|
|
int i, j;
|
|
int result = 0;
|
|
acpi_status status;
|
|
|
|
status = acpi_evaluate_object(priv->adev->handle, "IDSP", NULL, &buf);
|
|
if (ACPI_FAILURE(status))
|
|
return -ENODEV;
|
|
|
|
obja = (union acpi_object *)buf.pointer;
|
|
if (obja->type != ACPI_TYPE_PACKAGE) {
|
|
result = -EINVAL;
|
|
goto end;
|
|
}
|
|
|
|
for (i = 0; i < obja->package.count; i++) {
|
|
objb = &obja->package.elements[i];
|
|
if (objb->type != ACPI_TYPE_BUFFER) {
|
|
result = -EINVAL;
|
|
goto end;
|
|
}
|
|
|
|
/* UUID must be 16 bytes */
|
|
if (objb->buffer.length != 16) {
|
|
result = -EINVAL;
|
|
goto end;
|
|
}
|
|
|
|
for (j = 0; j < INT3400_THERMAL_MAXIMUM_UUID; j++) {
|
|
guid_t guid;
|
|
|
|
guid_parse(int3400_thermal_uuids[j], &guid);
|
|
if (guid_equal((guid_t *)objb->buffer.pointer, &guid)) {
|
|
priv->uuid_bitmap |= (1 << j);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
end:
|
|
kfree(buf.pointer);
|
|
return result;
|
|
}
|
|
|
|
static ssize_t odvp_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct odvp_attr *odvp_attr;
|
|
|
|
odvp_attr = container_of(attr, struct odvp_attr, attr);
|
|
|
|
return sprintf(buf, "%d\n", odvp_attr->priv->odvp[odvp_attr->odvp]);
|
|
}
|
|
|
|
static void cleanup_odvp(struct int3400_thermal_priv *priv)
|
|
{
|
|
int i;
|
|
|
|
if (priv->odvp_attrs) {
|
|
for (i = 0; i < priv->odvp_count; i++) {
|
|
sysfs_remove_file(&priv->pdev->dev.kobj,
|
|
&priv->odvp_attrs[i].attr.attr);
|
|
kfree(priv->odvp_attrs[i].attr.attr.name);
|
|
}
|
|
kfree(priv->odvp_attrs);
|
|
}
|
|
kfree(priv->odvp);
|
|
priv->odvp_count = 0;
|
|
}
|
|
|
|
static int evaluate_odvp(struct int3400_thermal_priv *priv)
|
|
{
|
|
struct acpi_buffer odvp = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
union acpi_object *obj = NULL;
|
|
acpi_status status;
|
|
int i, ret;
|
|
|
|
status = acpi_evaluate_object(priv->adev->handle, "ODVP", NULL, &odvp);
|
|
if (ACPI_FAILURE(status)) {
|
|
ret = -EINVAL;
|
|
goto out_err;
|
|
}
|
|
|
|
obj = odvp.pointer;
|
|
if (obj->type != ACPI_TYPE_PACKAGE) {
|
|
ret = -EINVAL;
|
|
goto out_err;
|
|
}
|
|
|
|
if (priv->odvp == NULL) {
|
|
priv->odvp_count = obj->package.count;
|
|
priv->odvp = kmalloc_array(priv->odvp_count, sizeof(int),
|
|
GFP_KERNEL);
|
|
if (!priv->odvp) {
|
|
ret = -ENOMEM;
|
|
goto out_err;
|
|
}
|
|
}
|
|
|
|
if (priv->odvp_attrs == NULL) {
|
|
priv->odvp_attrs = kcalloc(priv->odvp_count,
|
|
sizeof(struct odvp_attr),
|
|
GFP_KERNEL);
|
|
if (!priv->odvp_attrs) {
|
|
ret = -ENOMEM;
|
|
goto out_err;
|
|
}
|
|
for (i = 0; i < priv->odvp_count; i++) {
|
|
struct odvp_attr *odvp = &priv->odvp_attrs[i];
|
|
|
|
sysfs_attr_init(&odvp->attr.attr);
|
|
odvp->priv = priv;
|
|
odvp->odvp = i;
|
|
odvp->attr.attr.name = kasprintf(GFP_KERNEL,
|
|
"odvp%d", i);
|
|
|
|
if (!odvp->attr.attr.name) {
|
|
ret = -ENOMEM;
|
|
goto out_err;
|
|
}
|
|
odvp->attr.attr.mode = 0444;
|
|
odvp->attr.show = odvp_show;
|
|
odvp->attr.store = NULL;
|
|
ret = sysfs_create_file(&priv->pdev->dev.kobj,
|
|
&odvp->attr.attr);
|
|
if (ret)
|
|
goto out_err;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < obj->package.count; i++) {
|
|
if (obj->package.elements[i].type == ACPI_TYPE_INTEGER)
|
|
priv->odvp[i] = obj->package.elements[i].integer.value;
|
|
}
|
|
|
|
kfree(obj);
|
|
return 0;
|
|
|
|
out_err:
|
|
cleanup_odvp(priv);
|
|
kfree(obj);
|
|
return ret;
|
|
}
|
|
|
|
static void int3400_notify(acpi_handle handle,
|
|
u32 event,
|
|
void *data)
|
|
{
|
|
struct int3400_thermal_priv *priv = data;
|
|
char *thermal_prop[5];
|
|
int therm_event;
|
|
|
|
if (!priv)
|
|
return;
|
|
|
|
switch (event) {
|
|
case INT3400_THERMAL_TABLE_CHANGED:
|
|
therm_event = THERMAL_TABLE_CHANGED;
|
|
break;
|
|
case INT3400_KEEP_ALIVE:
|
|
therm_event = THERMAL_EVENT_KEEP_ALIVE;
|
|
break;
|
|
case INT3400_ODVP_CHANGED:
|
|
evaluate_odvp(priv);
|
|
therm_event = THERMAL_DEVICE_POWER_CAPABILITY_CHANGED;
|
|
break;
|
|
default:
|
|
/* Ignore unknown notification codes sent to INT3400 device */
|
|
return;
|
|
}
|
|
|
|
thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", priv->thermal->type);
|
|
thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", priv->thermal->temperature);
|
|
thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=");
|
|
thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", therm_event);
|
|
thermal_prop[4] = NULL;
|
|
kobject_uevent_env(&priv->thermal->device.kobj, KOBJ_CHANGE, thermal_prop);
|
|
kfree(thermal_prop[0]);
|
|
kfree(thermal_prop[1]);
|
|
kfree(thermal_prop[2]);
|
|
kfree(thermal_prop[3]);
|
|
}
|
|
|
|
static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
|
|
int *temp)
|
|
{
|
|
*temp = 20 * 1000; /* faked temp sensor with 20C */
|
|
return 0;
|
|
}
|
|
|
|
static int int3400_thermal_change_mode(struct thermal_zone_device *thermal,
|
|
enum thermal_device_mode mode)
|
|
{
|
|
struct int3400_thermal_priv *priv = thermal->devdata;
|
|
int result = 0;
|
|
|
|
if (!priv)
|
|
return -EINVAL;
|
|
|
|
if (mode != thermal->mode) {
|
|
int enabled;
|
|
|
|
enabled = mode == THERMAL_DEVICE_ENABLED;
|
|
|
|
if (priv->os_uuid_mask) {
|
|
if (!enabled) {
|
|
priv->os_uuid_mask = 0;
|
|
result = set_os_uuid_mask(priv, priv->os_uuid_mask);
|
|
}
|
|
goto eval_odvp;
|
|
}
|
|
|
|
if (priv->current_uuid_index < 0 ||
|
|
priv->current_uuid_index >= INT3400_THERMAL_MAXIMUM_UUID)
|
|
return -EINVAL;
|
|
|
|
result = int3400_thermal_run_osc(priv->adev->handle,
|
|
int3400_thermal_uuids[priv->current_uuid_index],
|
|
&enabled);
|
|
}
|
|
|
|
eval_odvp:
|
|
evaluate_odvp(priv);
|
|
|
|
return result;
|
|
}
|
|
|
|
static struct thermal_zone_device_ops int3400_thermal_ops = {
|
|
.get_temp = int3400_thermal_get_temp,
|
|
.change_mode = int3400_thermal_change_mode,
|
|
};
|
|
|
|
static struct thermal_zone_params int3400_thermal_params = {
|
|
.governor_name = "user_space",
|
|
.no_hwmon = true,
|
|
};
|
|
|
|
static void int3400_setup_gddv(struct int3400_thermal_priv *priv)
|
|
{
|
|
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
union acpi_object *obj;
|
|
acpi_status status;
|
|
|
|
status = acpi_evaluate_object(priv->adev->handle, "GDDV", NULL,
|
|
&buffer);
|
|
if (ACPI_FAILURE(status) || !buffer.length)
|
|
return;
|
|
|
|
obj = buffer.pointer;
|
|
if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count != 1
|
|
|| obj->package.elements[0].type != ACPI_TYPE_BUFFER)
|
|
goto out_free;
|
|
|
|
priv->data_vault = kmemdup(obj->package.elements[0].buffer.pointer,
|
|
obj->package.elements[0].buffer.length,
|
|
GFP_KERNEL);
|
|
if (ZERO_OR_NULL_PTR(priv->data_vault))
|
|
goto out_free;
|
|
|
|
bin_attr_data_vault.private = priv->data_vault;
|
|
bin_attr_data_vault.size = obj->package.elements[0].buffer.length;
|
|
out_free:
|
|
kfree(buffer.pointer);
|
|
}
|
|
|
|
static int int3400_thermal_probe(struct platform_device *pdev)
|
|
{
|
|
struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
|
|
struct int3400_thermal_priv *priv;
|
|
int result;
|
|
|
|
if (!adev)
|
|
return -ENODEV;
|
|
|
|
priv = kzalloc(sizeof(struct int3400_thermal_priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
priv->pdev = pdev;
|
|
priv->adev = adev;
|
|
|
|
result = int3400_thermal_get_uuids(priv);
|
|
|
|
/* Missing IDSP isn't fatal */
|
|
if (result && result != -ENODEV)
|
|
goto free_priv;
|
|
|
|
priv->current_uuid_index = -1;
|
|
|
|
result = acpi_parse_art(priv->adev->handle, &priv->art_count,
|
|
&priv->arts, true);
|
|
if (result)
|
|
dev_dbg(&pdev->dev, "_ART table parsing error\n");
|
|
|
|
result = acpi_parse_trt(priv->adev->handle, &priv->trt_count,
|
|
&priv->trts, true);
|
|
if (result)
|
|
dev_dbg(&pdev->dev, "_TRT table parsing error\n");
|
|
|
|
platform_set_drvdata(pdev, priv);
|
|
|
|
int3400_setup_gddv(priv);
|
|
|
|
evaluate_odvp(priv);
|
|
|
|
priv->thermal = thermal_zone_device_register("INT3400 Thermal", 0, 0,
|
|
priv, &int3400_thermal_ops,
|
|
&int3400_thermal_params, 0, 0);
|
|
if (IS_ERR(priv->thermal)) {
|
|
result = PTR_ERR(priv->thermal);
|
|
goto free_art_trt;
|
|
}
|
|
|
|
priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
|
|
priv->adev->handle);
|
|
|
|
result = sysfs_create_group(&pdev->dev.kobj, &uuid_attribute_group);
|
|
if (result)
|
|
goto free_rel_misc;
|
|
|
|
if (acpi_has_method(priv->adev->handle, "IMOK")) {
|
|
result = sysfs_create_group(&pdev->dev.kobj, &imok_attribute_group);
|
|
if (result)
|
|
goto free_imok;
|
|
}
|
|
|
|
if (!ZERO_OR_NULL_PTR(priv->data_vault)) {
|
|
result = sysfs_create_group(&pdev->dev.kobj,
|
|
&data_attribute_group);
|
|
if (result)
|
|
goto free_uuid;
|
|
}
|
|
|
|
result = acpi_install_notify_handler(
|
|
priv->adev->handle, ACPI_DEVICE_NOTIFY, int3400_notify,
|
|
(void *)priv);
|
|
if (result)
|
|
goto free_sysfs;
|
|
|
|
return 0;
|
|
|
|
free_sysfs:
|
|
cleanup_odvp(priv);
|
|
if (!ZERO_OR_NULL_PTR(priv->data_vault)) {
|
|
sysfs_remove_group(&pdev->dev.kobj, &data_attribute_group);
|
|
kfree(priv->data_vault);
|
|
}
|
|
free_uuid:
|
|
sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
|
|
free_imok:
|
|
sysfs_remove_group(&pdev->dev.kobj, &imok_attribute_group);
|
|
free_rel_misc:
|
|
if (!priv->rel_misc_dev_res)
|
|
acpi_thermal_rel_misc_device_remove(priv->adev->handle);
|
|
thermal_zone_device_unregister(priv->thermal);
|
|
free_art_trt:
|
|
kfree(priv->trts);
|
|
kfree(priv->arts);
|
|
free_priv:
|
|
kfree(priv);
|
|
return result;
|
|
}
|
|
|
|
static int int3400_thermal_remove(struct platform_device *pdev)
|
|
{
|
|
struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
|
|
|
|
acpi_remove_notify_handler(
|
|
priv->adev->handle, ACPI_DEVICE_NOTIFY,
|
|
int3400_notify);
|
|
|
|
cleanup_odvp(priv);
|
|
|
|
if (!priv->rel_misc_dev_res)
|
|
acpi_thermal_rel_misc_device_remove(priv->adev->handle);
|
|
|
|
if (!ZERO_OR_NULL_PTR(priv->data_vault))
|
|
sysfs_remove_group(&pdev->dev.kobj, &data_attribute_group);
|
|
sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
|
|
sysfs_remove_group(&pdev->dev.kobj, &imok_attribute_group);
|
|
thermal_zone_device_unregister(priv->thermal);
|
|
kfree(priv->data_vault);
|
|
kfree(priv->trts);
|
|
kfree(priv->arts);
|
|
kfree(priv);
|
|
return 0;
|
|
}
|
|
|
|
static const struct acpi_device_id int3400_thermal_match[] = {
|
|
{"INT3400", 0},
|
|
{"INTC1040", 0},
|
|
{"INTC1041", 0},
|
|
{"INTC1042", 0},
|
|
{"INTC10A0", 0},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(acpi, int3400_thermal_match);
|
|
|
|
static struct platform_driver int3400_thermal_driver = {
|
|
.probe = int3400_thermal_probe,
|
|
.remove = int3400_thermal_remove,
|
|
.driver = {
|
|
.name = "int3400 thermal",
|
|
.acpi_match_table = ACPI_PTR(int3400_thermal_match),
|
|
},
|
|
};
|
|
|
|
module_platform_driver(int3400_thermal_driver);
|
|
|
|
MODULE_DESCRIPTION("INT3400 Thermal driver");
|
|
MODULE_AUTHOR("Zhang Rui <rui.zhang@intel.com>");
|
|
MODULE_LICENSE("GPL");
|