In pxa_ssp_set_dai_fmt(), don't modify the SSP registers in case the stream is already running. With that patch applied, loop-thru tests like 'acrecord -f cd | aplay -f cd' succeed. Signed-off-by: Daniel Mack <daniel@xxxxxxxx> Cc: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> Cc: Liam Girdwood <lrg@xxxxxxxxxx> Cc: Philipp Zabel <philipp.zabel@xxxxxxxxx> Cc: Tim Ruetz <tim@xxxxxxxx> --- sound/soc/pxa/pxa-ssp.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 7fc13f0..45fb600 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -521,6 +521,10 @@ static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai, u32 sscr0; u32 sscr1; u32 sspsp; + + /* we can only change the settings if the port is not in use */ + if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE) + return 0; /* reset port settings */ sscr0 = ssp_read_reg(ssp, SSCR0) & -- 1.6.1.3 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
