[PATCH 3/7] fbdev: radeon: Use backlight helper

From: Stephen Kitt
Date: Tue Jun 07 2022 - 23:17:42 EST


Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt <steve@xxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: linux-fbdev@xxxxxxxxxxxxxxx
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
drivers/video/fbdev/aty/radeon_backlight.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/video/fbdev/aty/radeon_backlight.c b/drivers/video/fbdev/aty/radeon_backlight.c
index d2c1263ad260..427adc838f77 100644
--- a/drivers/video/fbdev/aty/radeon_backlight.c
+++ b/drivers/video/fbdev/aty/radeon_backlight.c
@@ -57,11 +57,7 @@ static int radeon_bl_update_status(struct backlight_device *bd)
* backlight. This provides some greater power saving and the display
* is useless without backlight anyway.
*/
- if (bd->props.power != FB_BLANK_UNBLANK ||
- bd->props.fb_blank != FB_BLANK_UNBLANK)
- level = 0;
- else
- level = bd->props.brightness;
+ level = backlight_get_brightness(bd);

del_timer_sync(&rinfo->lvds_timer);
radeon_engine_idle();
--
2.30.2