video: Add support for Hitachi tx18d42vm LVDS LCD panels

Add support for Hitachi tx18d42vm LVDS LCD panels, these panels have a
lcd controller which needs to be initialized over SPI, once that is
done they work like a regular LVDS panel.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
diff --git a/drivers/video/hitachi_tx18d42vm_lcd.h b/drivers/video/hitachi_tx18d42vm_lcd.h
new file mode 100644
index 0000000..1b72800
--- /dev/null
+++ b/drivers/video/hitachi_tx18d42vm_lcd.h
@@ -0,0 +1,9 @@
+/*
+ * Hitachi tx18d42vm LVDS LCD panel driver
+ *
+ * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+void hitachi_tx18d42vm_init(void);