On Wed, Sep 25, 2024 at 07:25:30AM -0400, Sasha Levin wrote:
From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
[ Upstream commit fd69dfe6789f4ed46d1fdb52e223cff83946d997 ]
I have been wondering why DPCM needs special flag (= dpcm_playback/capture) to use it. Below is the history why it was added to ASoC.
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Because of these history, this dpcm_xxx is unneeded flag today. But because we have been used it for 10 years since (B), it may have been used differently. For example some DAI available both playback/capture, but it set dpcm_playback flag only, in this case dpcm_xxx flag is used as availability limitation. We can use playback_only flag instead in this case, but it is very difficult to find such DAI today.
Let's add grace time to remove dpcm_playback/capture flag.
This patch don't use dpcm_xxx flag anymore, and indicates warning to use xxx_only flag if both playback/capture were available but using only one of dpcm_xxx flag, and not using xxx_only flag.
This is a cleanup/refactoring preparation patch, I can see no reason why it would be considered for stable.