Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index d059d04..1410f47 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -279,7 +279,7 @@
 
 	/* check whether divisor is too small. */
 	if (divider_int < 2) {
-		dev_warn(fbi->dev, "Warning: clock source is too slow."
+		dev_warn(fbi->dev, "Warning: clock source is too slow. "
 				"Try smaller resolution\n");
 		divider_int = 2;
 	}
@@ -405,9 +405,6 @@
 	struct fb_var_screeninfo *var = &info->var;
 	struct fb_videomode mode;
 	u32 x;
-	struct pxa168fb_mach_info *mi;
-
-	mi = dev_get_platdata(fbi->dev);
 
 	/*
 	 * Set additional mode info.