Signed-off-by: Thomas Renninger <trenn@xxxxxxx>
---
drivers/acpi/toshiba_acpi.c | 20 ++++++++++++--------
1 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 66aac06..843009e 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -780,19 +780,23 @@ static int __init toshiba_acpi_init(void)
}
}
- toshiba_backlight_device = backlight_device_register("toshiba",
+ toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
+
+ if (acpi_video_backlight_support() <
+ toshiba_backlight_device->props.max_brightness) {
+ toshiba_backlight_device = backlight_device_register("toshiba",
&toshiba_acpi.p_dev->dev,
NULL,
&toshiba_backlight_data);
- if (IS_ERR(toshiba_backlight_device)) {
- ret = PTR_ERR(toshiba_backlight_device);
+ if (IS_ERR(toshiba_backlight_device)) {
+ ret = PTR_ERR(toshiba_backlight_device);
- printk(KERN_ERR "Could not register toshiba backlight device\n");
- toshiba_backlight_device = NULL;
- toshiba_acpi_exit();
- return ret;
+ printk(KERN_ERR "Could not register toshiba backlight device\n");
+ toshiba_backlight_device = NULL;
+ toshiba_acpi_exit();
+ return ret;
+ }
}
- toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
/* Register rfkill switch for Bluetooth */
if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {
--
1.6.0.2
--
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