ASoC: fsl: Disable SSI in trigger() if RE/TE are both cleared

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The code enabled SSIEN when triggered by SNDRV_PCM_TRIGGER_START,
so move the disable code to SNDRV_PCM_TRIGGER_STOP for symmetric.

This also allows us to use the SSI driver more flexible so that
it can support some use cases like "aplay S16_LE.wav S24_LE.wav"
which would call the driver in sequence like:
 startup()->hw_params(S16_LE)->trigger(START)->tirgger(STOP)->
 hw_params(S24_LE)->trigger(START)->tirgger(STOP)->shutdown()

If we disable SSIEN in shutdown(), the second hw_params() would
bypass the sample bits setting while using symmetric_rate.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

...

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Nicolin Chen 2013-07-10 18:43:54 +08:00 • committed by Mark Brown

parent 624dcbdea2

commit b2c119b0bb

1 changed files with 3 additions and 9 deletions

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sound/soc/fsl/fsl_ssi.c

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