cca69ef6eb
The i.MX8M Nano has supports the MICFIL digital interface. It's a 16-bit audio signal from a PDM microphone bitstream. The driver is already in the kernel, but the node is missing. Add the micfil node. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>