ASoC: msm: Add support to play more non continuous sample rates.

Support 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
rates for LPA playback.

CRs-Fixed: 310102
Change-Id: I7a1addaac17002eeb107c38dc5902dfff8398127
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
diff --git a/sound/soc/msm/msm-dai-fe.c b/sound/soc/msm/msm-dai-fe.c
index 8970400..2ad7f3e 100644
--- a/sound/soc/msm/msm-dai-fe.c
+++ b/sound/soc/msm/msm-dai-fe.c
@@ -21,6 +21,31 @@
 
 static struct snd_soc_dai_ops msm_fe_dai_ops = {};
 
+/* Conventional and unconventional sample rate supported */
+static unsigned int supported_sample_rates[] = {
+	8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
+};
+
+static struct snd_pcm_hw_constraint_list constraints_sample_rates = {
+	.count = ARRAY_SIZE(supported_sample_rates),
+	.list = supported_sample_rates,
+	.mask = 0,
+};
+
+static int multimedia_startup(struct snd_pcm_substream *substream,
+	struct snd_soc_dai *dai)
+{
+	snd_pcm_hw_constraint_list(substream->runtime, 0,
+		SNDRV_PCM_HW_PARAM_RATE,
+		&constraints_sample_rates);
+
+	return 0;
+}
+
+static struct snd_soc_dai_ops msm_fe_Multimedia_dai_ops = {
+	.startup	= multimedia_startup,
+};
+
 static struct snd_soc_dai_driver msm_fe_dais[] = {
 	{
 		.playback = {
@@ -113,14 +138,15 @@
 	{
 		.playback = {
 			.stream_name = "MultiMedia3 Playback",
-			.rates = SNDRV_PCM_RATE_8000_48000,
+			.rates = (SNDRV_PCM_RATE_8000_48000 |
+					SNDRV_PCM_RATE_KNOT),
 			.formats = SNDRV_PCM_FMTBIT_S16_LE,
 			.channels_min = 1,
 			.channels_max = 2,
 			.rate_min =	8000,
 			.rate_max = 48000,
 		},
-		.ops = &msm_fe_dai_ops,
+		.ops = &msm_fe_Multimedia_dai_ops,
 		.name = "MultiMedia3",
 	},
 	/* FE DAIs created for hostless operation purpose */