[PATCH] drm: shmobile: Use backlight helper

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backlight_properties.fb_blank is deprecated. The states it represents
are handled by other properties; but instead of accessing those
properties directly, drivers should use the helpers provided by
backlight.h.

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: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
 drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
index f6628a5ee95f..794573badfe8 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
@@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
 	struct shmob_drm_connector *scon = bl_get_data(bdev);
 	struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
 	const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
-	int brightness = bdev->props.brightness;
-
-	if (bdev->props.power != FB_BLANK_UNBLANK ||
-	    bdev->props.state & BL_CORE_SUSPENDED)
-		brightness = 0;
+	int brightness = backlight_get_brightness(bdev);
 
 	return bdata->set_brightness(brightness);
 }

base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
-- 
2.30.2




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