[alsa-devel] [PATCH 07/21] ASoC: io: Prevent use of regmap if request fails

[Mark Brown]

On Thu, Jul 26, 2012 at 04:23:33PM +0100, Lee Jones wrote:

> What's my 'control data'? It's not used in the original codec patch.

> The old way wants to go:

> snd_soc_update_bits() -> snd_soc_read() -> ab8500_codec_read_reg()

> When then calls back into the abx500.

> So what 'control data' should I be storing in the codec struct?

You're supposed to use it for the data you use to call back into the
underlying I/O code.
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