diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index c6f92ec636e7..5ace1e0fd0bd 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -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; } |