video: fbdev: clps711x-fb: Use syscon_regmap_lookup_by_phandle

Since version 5.13, the standard syscon bindings have been added
to all clps711x DT nodes, so we can now use the more general
syscon_regmap_lookup_by_phandle function to get the syscon pointer.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

drivers/video/fbdev/clps711x-fb.c

@@ -268,8 +268,7 @@ static int clps711x_fb_probe(struct platform_device *pdev)
 		goto out_fb_release;
 	}
 
-	cfb->syscon =
-		syscon_regmap_lookup_by_compatible("cirrus,ep7209-syscon1");
+	cfb->syscon = syscon_regmap_lookup_by_phandle(np, "syscon");
 	if (IS_ERR(cfb->syscon)) {
 		ret = PTR_ERR(cfb->syscon);
 		goto out_fb_release;