[PATCH v2] ASoC: fsl_ssi: Set default slot number for common cases

[Nicolin Chen]

For those platforms using DAI master mode like I2S, it's better to pre-set
a default slot number so that there's no need for these common cases to set
the slot number from its machine driver any more.

Signed-off-by: Nicolin Chen <Guangyu.Chen at freescale.com>
---

Changelog
v2:
 * Correct coding style for multi-line comment.

 sound/soc/fsl/fsl_ssi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 94dedcb..aad2a1f 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -711,6 +711,17 @@ static int fsl_ssi_setup(struct fsl_ssi_private *ssi_private)
 	if (ssi_private->imx_ac97)
 		fsl_ssi_setup_ac97(ssi_private);
 
+	/*
+	 * Set a default slot number so that there is no need for those common
+	 * cases like I2S mode to call the extra set_tdm_slot() any more.
+	 */
+	if (!ssi_private->imx_ac97) {
+		write_ssi_mask(&ssi->stccr, CCSR_SSI_SxCCR_DC_MASK,
+				CCSR_SSI_SxCCR_DC(2));
+		write_ssi_mask(&ssi->srccr, CCSR_SSI_SxCCR_DC_MASK,
+				CCSR_SSI_SxCCR_DC(2));
+	}
+
 	return 0;
 }
 
-- 
1.8.4