Optional properties:
- phys: from general PHY binding: the phandle for the PHY device.
- phy-names: Should be "dphy" if phys references an external phy.
+- #phy-cells: Defined when used as ISP phy, should be 0.
- power-domains: a phandle to mipi dsi power domain node.
- resets: list of phandle + reset specifier pairs, as described in [3].
- reset-names: string reset name, must be "apb".