[alsa-devel] [PATCH 4/4] ASoC: Flag the i.MX SSI driver as using symmetric rates

Mark Brown broonie at opensource.wolfsonmicro.com
Mon Jan 11 12:51:01 CET 2010

On Mon, Jan 11, 2010 at 12:39:13PM +0100, javier Martin wrote:

> However,
> I think it would be a good idea to add an optional flag to activate
> symmetric rate.
> Understanding it as TX and RX SSI sections sharing the same CLKs.
> This is necessary for some codecs like wm8974 to work because they can only
> provide
> one BCLK and FCLK for both directions.

That's not what the patch does - it only sets the symmetric_rates flag,
which can also be flagged from the machine driver, which adds some
constraints for applications so you can't configure asymmetric rates.
It doesn't affect the hardware configuration at all.

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