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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2015-11-23 13:51:53 +0300
committerMark Brown <broonie@kernel.org>2015-11-23 14:28:45 +0300
commit0ad7d3a04b2a1a43fa71eb89f754527b082213ad (patch)
tree7e682ab8f5526fa16d00b96ae69d4e834cd8c2c4 /sound/soc/davinci
parent1bdd593247ee5a74eb58828a4cf18bdc8a5f1baa (diff)
downloadlinux-0ad7d3a04b2a1a43fa71eb89f754527b082213ad.tar.xz
ASoC: davinci-mcasp: Fix master capture only mode
When McASP is used as TX/RX synchronous (TX side generating clocks for RX side also) and only capture is used we need to configure the number of TX slots in order McASP to be able to generate the Frame sync. Fixes: 9273de1940d9e ("ASoC: davinci-mcasp: Add set_tdm_slots() support") Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/davinci')
-rw-r--r--sound/soc/davinci/davinci-mcasp.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index caa0bebcd7f4..c1c9c2e3525b 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -908,6 +908,14 @@ static int mcasp_i2s_hw_param(struct davinci_mcasp *mcasp, int stream,
mcasp_set_bits(mcasp, DAVINCI_MCASP_RXFMT_REG, busel | RXORD);
mcasp_mod_bits(mcasp, DAVINCI_MCASP_RXFMCTL_REG,
FSRMOD(total_slots), FSRMOD(0x1FF));
+ /*
+ * If McASP is set to be TX/RX synchronous and the playback is
+ * not running already we need to configure the TX slots in
+ * order to have correct FSX on the bus
+ */
+ if (mcasp_is_synchronous(mcasp) && !mcasp->channels)
+ mcasp_mod_bits(mcasp, DAVINCI_MCASP_TXFMCTL_REG,
+ FSXMOD(total_slots), FSXMOD(0x1FF));
}
return 0;