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path: root/drivers/acpi/video.c
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Diffstat (limited to 'drivers/acpi/video.c')
-rw-r--r--drivers/acpi/video.c35
1 files changed, 12 insertions, 23 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 75e422bd926a..0771b434feb2 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -169,7 +169,6 @@ struct acpi_video_device {
169 struct acpi_device *dev; 169 struct acpi_device *dev;
170 struct acpi_video_device_brightness *brightness; 170 struct acpi_video_device_brightness *brightness;
171 struct backlight_device *backlight; 171 struct backlight_device *backlight;
172 struct backlight_properties *data;
173}; 172};
174 173
175/* bus */ 174/* bus */
@@ -286,13 +285,18 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
286 285
287static int acpi_video_set_brightness(struct backlight_device *bd) 286static int acpi_video_set_brightness(struct backlight_device *bd)
288{ 287{
289 int request_level = bd->props->brightness; 288 int request_level = bd->props.brightness;
290 struct acpi_video_device *vd = 289 struct acpi_video_device *vd =
291 (struct acpi_video_device *)class_get_devdata(&bd->class_dev); 290 (struct acpi_video_device *)class_get_devdata(&bd->class_dev);
292 acpi_video_device_lcd_set_level(vd, request_level); 291 acpi_video_device_lcd_set_level(vd, request_level);
293 return 0; 292 return 0;
294} 293}
295 294
295static struct backlight_ops acpi_backlight_ops = {
296 .get_brightness = acpi_video_get_brightness,
297 .update_status = acpi_video_set_brightness,
298};
299
296/* -------------------------------------------------------------------------- 300/* --------------------------------------------------------------------------
297 Video Management 301 Video Management
298 -------------------------------------------------------------------------- */ 302 -------------------------------------------------------------------------- */
@@ -608,30 +612,18 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
608 unsigned long tmp; 612 unsigned long tmp;
609 static int count = 0; 613 static int count = 0;
610 char *name; 614 char *name;
611 struct backlight_properties *acpi_video_data;
612
613 name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); 615 name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
614 if (!name) 616 if (!name)
615 return; 617 return;
616 618
617 acpi_video_data = kzalloc(
618 sizeof(struct backlight_properties),
619 GFP_KERNEL);
620 if (!acpi_video_data){
621 kfree(name);
622 return;
623 }
624 acpi_video_data->get_brightness =
625 acpi_video_get_brightness;
626 acpi_video_data->update_status =
627 acpi_video_set_brightness;
628 sprintf(name, "acpi_video%d", count++); 619 sprintf(name, "acpi_video%d", count++);
629 device->data = acpi_video_data;
630 acpi_video_data->max_brightness = max_level;
631 acpi_video_device_lcd_get_level_current(device, &tmp); 620 acpi_video_device_lcd_get_level_current(device, &tmp);
632 acpi_video_data->brightness = (int)tmp;
633 device->backlight = backlight_device_register(name, 621 device->backlight = backlight_device_register(name,
634 NULL, device, acpi_video_data); 622 NULL, device, &acpi_backlight_ops);
623 device->backlight->props.max_brightness = max_level;
624 device->backlight->props.brightness = (int)tmp;
625 backlight_update_status(device->backlight);
626
635 kfree(name); 627 kfree(name);
636 } 628 }
637 return; 629 return;
@@ -1676,10 +1668,7 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
1676 status = acpi_remove_notify_handler(device->dev->handle, 1668 status = acpi_remove_notify_handler(device->dev->handle,
1677 ACPI_DEVICE_NOTIFY, 1669 ACPI_DEVICE_NOTIFY,
1678 acpi_video_device_notify); 1670 acpi_video_device_notify);
1679 if (device->backlight){ 1671 backlight_device_unregister(device->backlight);
1680 backlight_device_unregister(device->backlight);
1681 kfree(device->data);
1682 }
1683 return 0; 1672 return 0;
1684} 1673}
1685 1674