drm/panel: panel-dsi-cm: remove extra 'if'

We have a useless 'if' in the dsicm_bl_update_status(), a left over from
the conversion to DRM model. Drop the if.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-72-tomi.valkeinen@ti.com

drivers/gpu/drm/panel/panel-dsi-cm.c

@@ -202,11 +202,9 @@ static int dsicm_bl_update_status(struct backlight_device *dev)
 
 	mutex_lock(&ddata->lock);
 
-	if (ddata->enabled) {
-		if (!r)
-			r = dsicm_dcs_write_1(
-				ddata, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, level);
-	}
+	if (ddata->enabled)
+		r = dsicm_dcs_write_1(ddata, MIPI_DCS_SET_DISPLAY_BRIGHTNESS,
+				      level);
 
 	mutex_unlock(&ddata->lock);