HI3670 SoC is architecturally same as the HI3660 SoC. Hence, the same driver is reused for HI3670 SoC and the binding is documented here which uses the fallback approach. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>