[PATCH 3/3] drm/panel: sony-acx565akm: Use backlight helpers

[Stephen Kitt]

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.

Instead of manually checking the power state in struct
backlight_properties, use backlight_is_blank().

Signed-off-by: Stephen Kitt <st...@sk2.org>
Cc: Thierry Reding <thierry.red...@gmail.com>
Cc: Sam Ravnborg <s...@ravnborg.org>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/panel/panel-sony-acx565akm.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sony-acx565akm.c 
b/drivers/gpu/drm/panel/panel-sony-acx565akm.c
index 0d7541a33f87..a6bc8c8cf6c8 100644
--- a/drivers/gpu/drm/panel/panel-sony-acx565akm.c
+++ b/drivers/gpu/drm/panel/panel-sony-acx565akm.c
@@ -298,13 +298,7 @@ static void acx565akm_set_brightness(struct 
acx565akm_panel *lcd, int level)
 static int acx565akm_bl_update_status_locked(struct backlight_device *dev)
 {
        struct acx565akm_panel *lcd = dev_get_drvdata(&dev->dev);
-       int level;
-
-       if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
-           dev->props.power == FB_BLANK_UNBLANK)
-               level = dev->props.brightness;
-       else
-               level = 0;
+       int level = backlight_get_brightness(dev);
 
        acx565akm_set_brightness(lcd, level);
 
@@ -330,8 +324,7 @@ static int acx565akm_bl_get_intensity(struct 
backlight_device *dev)
 
        mutex_lock(&lcd->mutex);
 
-       if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
-           dev->props.power == FB_BLANK_UNBLANK)
+       if (!backlight_is_blank(dev))
                intensity = acx565akm_get_actual_brightness(lcd);
        else
                intensity = 0;
-- 
2.30.2