diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_acpi.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index c01302989ee4..f774cb576ffa 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -131,7 +131,7 @@ MODULE_LICENSE("GPL"); /* Field definitions */ #define HCI_ACCEL_MASK 0x7fff #define HCI_HOTKEY_DISABLE 0x0b -#define HCI_HOTKEY_ENABLE 0x01 +#define HCI_HOTKEY_ENABLE 0x09 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10 #define HCI_LCD_BRIGHTNESS_BITS 3 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) @@ -2484,6 +2484,14 @@ static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) brightness = __get_lcd_brightness(dev); if (brightness < 0) return 0; + /* + * If transflective backlight is supported and the brightness is zero + * (lowest brightness level), the set_lcd_brightness function will + * activate the transflective backlight, making the LCD appear to be + * turned off, simply increment the brightness level to avoid that. + */ + if (dev->tr_backlight_supported && brightness == 0) + brightness++; ret = set_lcd_brightness(dev, brightness); if (ret) { pr_debug("Backlight method is read-only, disabling backlight support\n"); |