On Mon, Feb 17, 2020 at 12:42:19AM -0600, Samuel Holland wrote: > Cc: stable@kernel.org > Fixes: ec4a95409d5c ("arm64: dts: allwinner: a64: add nodes necessary for analog sound support") > Signed-off-by: Samuel Holland > codec: codec@1c22e00 { > #sound-dai-cells = <0>; > - compatible = "allwinner,sun8i-a33-codec"; > + compatible = "allwinner,sun50i-a64-codec"; This is an incompatible change in the ABI, it's going to break unless it's applied at exactly the same time as the matching kernel update adding the new compatible string. That's not suitable for stable, you need to keep the old compatible as a fallback.