linux-kernel - [PATCH 2/7] fbdev: atyfb: Use backlight helper

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Date:   Tue,  7 Jun 2022 21:23:30 +0200
From:   Stephen Kitt <steve@....org>
To:     Antonino Daplas <adaplas@...il.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Helge Deller <deller@....de>, Paul Mackerras <paulus@...ba.org>
Cc:     linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Stephen Kitt <steve@....org>, dri-devel@...ts.freedesktop.org
Subject: [PATCH 2/7] fbdev: atyfb: Use backlight helper

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@....org>
Cc: Helge Deller <deller@....de>
Cc: linux-fbdev@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
---
 drivers/video/fbdev/aty/atyfb_base.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index a3e6faed7745..bec2d0c22fb2 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -2218,13 +2218,7 @@ static int aty_bl_update_status(struct backlight_device *bd)
 {
 	struct atyfb_par *par = bl_get_data(bd);
 	unsigned int reg = aty_ld_lcd(LCD_MISC_CNTL, par);
-	int level;
-
-	if (bd->props.power != FB_BLANK_UNBLANK ||
-	    bd->props.fb_blank != FB_BLANK_UNBLANK)
-		level = 0;
-	else
-		level = bd->props.brightness;
+	int level = backlight_get_brightness(bd);
 
 	reg |= (BLMOD_EN | BIASMOD_EN);
 	if (level > 0) {
-- 
2.30.2