From 3cc7780b6fc04318ab08d84f739503989200cf55 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Mon, 19 Oct 2015 17:42:23 -0700 Subject: [PATCH] ASoC: fsl_sai: fix Rx synchrounous mode When using the Rx clock for both, transmitter and receiver, the transmitter needs to be set to synchronous with receiver. This reverts 855675f6e6a6 ("ASoC: fsl_sai: Set SYNC bit of TCR2 to Asynchronous Mode"), which, judiging from the commit log, seems to mixed up between the two synchronous modes: The boolean sai->synchronous[TX] is indicating wheather the SAI should work in Rx synchronous mode (sync Tx with Rx), hence if the value is true, the SYNC field of TCR2 needs to be set to 0x1 ("Synchronous with receiver"). Signed-off-by: Stefan Agner Acked-by: Nicolin Chen Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_sai.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index a18fd92c4a85..1f0e5527a2fe 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -454,7 +454,8 @@ static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd, * Rx sync with Tx clocks: Clear SYNC for Tx, set it for Rx. * Tx sync with Rx clocks: Clear SYNC for Rx, set it for Tx. */ - regmap_update_bits(sai->regmap, FSL_SAI_TCR2, FSL_SAI_CR2_SYNC, 0); + regmap_update_bits(sai->regmap, FSL_SAI_TCR2, FSL_SAI_CR2_SYNC, + sai->synchronous[TX] ? FSL_SAI_CR2_SYNC : 0); regmap_update_bits(sai->regmap, FSL_SAI_RCR2, FSL_SAI_CR2_SYNC, sai->synchronous[RX] ? FSL_SAI_CR2_SYNC : 0); -- 2.20.1