Re: [alsa-devel] [RFC PATCH 03/34] arm64: dts: allwinner: a64: Fix the audio codec compatible

Mark Brown
2020-02-17T14:57:50Z

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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 <samuel@sholland.org>

> 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.

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