Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-11 22:51:42 +00:00
Code Issues Packages Projects Releases Wiki Activity

toshiba_acpi: Add sysfs entries for the Cooling Method feature

Browse Source 
This patch adds the sysfs entry

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Azael Avalos 2016-01-25 11:29:11 -07:00 committed by Darren Hart
parent 763ff32f19
commit b1009b919b
1 changed files with 51 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
drivers/platform/x86/toshiba_acpi.c
View File

@ -2289,6 +2289,54 @@ static ssize_t usb_three_store(struct device *dev,
}
static DEVICE_ATTR_RW(usb_three);
static ssize_t cooling_method_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
ret = toshiba_cooling_method_get(toshiba, &state);
if (ret < 0)
return ret;
return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
}
static ssize_t cooling_method_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
/*
* Check for supported values
* Depending on the laptop model, some only support these two:
* 0 - Maximum Performance
* 1 - Battery Optimized
*
* While some others support all three methods:
* 0 - Maximum Performance
* 1 - Performance
* 2 - Battery Optimized
*/
if (state < 0 || state > toshiba->max_cooling_method)
return -EINVAL;
ret = toshiba_cooling_method_set(toshiba, state);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR_RW(cooling_method);
static struct attribute *toshiba_attributes[] = {
&dev_attr_version.attr,
&dev_attr_fan.attr,
@ -2305,6 +2353,7 @@ static struct attribute *toshiba_attributes[] = {
&dev_attr_kbd_function_keys.attr,
&dev_attr_panel_power_on.attr,
&dev_attr_usb_three.attr,
&dev_attr_cooling_method.attr,
NULL,
};
@ -2339,6 +2388,8 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
exists = (drv->panel_power_on_supported) ? true : false;
else if (attr == &dev_attr_usb_three.attr)
exists = (drv->usb_three_supported) ? true : false;
else if (attr == &dev_attr_cooling_method.attr)
exists = (drv->cooling_method_supported) ? true : false;
return exists ? attr->mode : 0;
}