linux-kernel - [PATCH 6/7] fbdev: omapfb: panel-dsi-cm: Use backlight helper

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Message-Id: <20220607192335.1137249-7-steve@sk2.org>
Date:   Tue,  7 Jun 2022 21:23:34 +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>, linux-omap@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH 6/7] fbdev: omapfb: panel-dsi-cm: 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-omap@...r.kernel.org
Cc: linux-fbdev@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
---
 drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
index a2c7c5cb1523..236430b5dc52 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
@@ -331,13 +331,7 @@ static int dsicm_bl_update_status(struct backlight_device *dev)
 	struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
 	struct omap_dss_device *in = ddata->in;
 	int r;
-	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);
 
 	dev_dbg(&ddata->pdev->dev, "update brightness to %d\n", level);
 
-- 
2.30.2