ASoC: fsl: Disable SSI in trigger() if RE/TE are both cleared
authorNicolin Chen <b42378@freescale.com>
Wed, 10 Jul 2013 10:43:54 +0000 (18:43 +0800)
committerMark Brown <broonie@linaro.org>
Mon, 15 Jul 2013 10:10:37 +0000 (11:10 +0100)
commitb2c119b0bba808608c48a8f7c9d727956d56561a
treec6ebd511964e0d7d6bf03e3463219d4a0c5e783d
parent624dcbdea24b599484895ed5b6a18e869e08d2a5
ASoC: fsl: Disable SSI in trigger() if RE/TE are both cleared

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>
sound/soc/fsl/fsl_ssi.c