ASoC: fsl-ssi: Set framerate divider correctly for i2s master mode

In i2s master mode the fsl_ssi driver depends on someone calling
.set_tdm_slot correctly. In this mode though only a DC value of
2 is allowed, so set it in this case and no longer depend on
.set_tdm_slot.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Tested-By: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/fsl/fsl_ssi.c

@@ -709,6 +709,10 @@ static int _fsl_ssi_set_dai_fmt(struct fsl_ssi_private *ssi_private,
 		switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 		case SND_SOC_DAIFMT_CBS_CFS:
 			ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_MASTER;
+			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));
 			break;
 		case SND_SOC_DAIFMT_CBM_CFM:
 			ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_SLAVE;