ASoC: OMAP: Add 4 channel support to mcbsp

Add 4 channel support to omap-mcbsp.
This mode is going to be used by the twl4030 codec, when it
is configured in Option1 mode.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 495192af8c2e..a5d46a7b196a 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -259,6 +259,7 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
                         regs->xcr2      |= XFRLEN2(wpf - 1);
                 }
         case 1:
+        case 4:
                 /* Set word per (McBSP) frame for phase1 */
                 regs->rcr1      |= RFRLEN1(wpf - 1);
                 regs->xcr1      |= XFRLEN1(wpf - 1);
@@ -506,13 +507,13 @@ static struct snd_soc_dai_ops omap_mcbsp_dai_ops = {
         .id = (link_id),                                        \
         .playback = {                                           \
                 .channels_min = 1,                              \
-                .channels_max = 2,                              \
+                .channels_max = 4,                              \
                 .rates = OMAP_MCBSP_RATES,                      \
                 .formats = SNDRV_PCM_FMTBIT_S16_LE,             \
         },                                                      \
         .capture = {                                            \
                 .channels_min = 1,                              \
-                .channels_max = 2,                              \
+                .channels_max = 4,                              \
                 .rates = OMAP_MCBSP_RATES,                      \
                 .formats = SNDRV_PCM_FMTBIT_S16_LE,             \
         },                                                      \