linux-kernel - [PATCH 4/4] backlight: tosa: Use backlight helper

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Message-Id: <20220607190925.1134737-5-steve@sk2.org>
Date:   Tue,  7 Jun 2022 21:09:25 +0200
From:   Stephen Kitt <steve@....org>
To:     Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>, Helge Deller <deller@....de>
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stephen Kitt <steve@....org>
Subject: [PATCH 4/4] backlight: tosa: 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: Lee Jones <lee.jones@...aro.org>
Cc: Daniel Thompson <daniel.thompson@...aro.org>
Cc: Jingoo Han <jingoohan1@...il.com>
Cc: Helge Deller <deller@....de>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-fbdev@...r.kernel.org
---
 drivers/video/backlight/tosa_bl.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index 6df6fcd132e3..5bbb769f9746 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -50,13 +50,8 @@ static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
 
 static int tosa_bl_update_status(struct backlight_device *dev)
 {
-	struct backlight_properties *props = &dev->props;
 	struct tosa_bl_data *data = bl_get_data(dev);
-	int power = max(props->power, props->fb_blank);
-	int brightness = props->brightness;
-
-	if (power)
-		brightness = 0;
+	int brightness = backlight_get_brightness(dev);
 
 	tosa_bl_set_backlight(data, brightness);
 
-- 
2.30.2