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Commit b1009b91 authored by Azael Avalos's avatar Azael Avalos Committed by Darren Hart
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toshiba_acpi: Add sysfs entries for the Cooling Method feature 



This patch adds the sysfs entry

Signed-off-by: default avatarAzael Avalos <coproscefalo@gmail.com>
Signed-off-by: default avatarDarren Hart <dvhart@linux.intel.com>
parent 763ff32f

drivers/platform/x86/toshiba_acpi.c

+51 −0
Original line number Diff line number Diff line
@@ -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;

}