ASoC: i.MX ssi: use SSI_STCCR in synchronous mode

In synchronous mode the SSI_SRCCR values are ignored. Instead
SSI_STCCR must be used for both receiving and transmitting.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/imx/imx-ssi.c

@@ -254,6 +254,9 @@ static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
 		dma_data = &ssi->dma_params_rx;
 	}
 
+	if (ssi->flags & IMX_SSI_SYN)
+		reg = SSI_STCCR;
+
 	snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
 	sccr = readl(ssi->base + reg) & ~SSI_STCCR_WL_MASK;