ASOC: msm: Add the MI2S CPU driver.

Add MI2S CPU driver which configures QDSP6 AFE to start MI2S port.

Change-Id: Idc12325d83607d60e66636c3fba052204905a629
Signed-off-by: Kuirong Wang <kuirongw@codeaurora.org>
diff --git a/sound/soc/msm/msm-pcm-routing.c b/sound/soc/msm/msm-pcm-routing.c
index e7c2694..2815daa 100644
--- a/sound/soc/msm/msm-pcm-routing.c
+++ b/sound/soc/msm/msm-pcm-routing.c
@@ -117,6 +117,7 @@
 	{ VOICE_PLAYBACK_TX, 0, NULL, 0, 0},
 	{ VOICE_RECORD_RX, 0, NULL, 0, 0},
 	{ VOICE_RECORD_TX, 0, NULL, 0, 0},
+	{ MI2S_RX, 0, NULL, 0, 0},
 };
 
 
@@ -682,6 +683,21 @@
 	msm_routing_put_audio_mixer),
 };
 
+static const struct snd_kcontrol_new mi2s_rx_mixer_controls[] = {
+	SOC_SINGLE_EXT("MultiMedia1", MSM_BACKEND_DAI_MI2S_RX ,
+	MSM_FRONTEND_DAI_MULTIMEDIA1, 1, 0, msm_routing_get_audio_mixer,
+	msm_routing_put_audio_mixer),
+	SOC_SINGLE_EXT("MultiMedia2", MSM_BACKEND_DAI_MI2S_RX,
+	MSM_FRONTEND_DAI_MULTIMEDIA2, 1, 0, msm_routing_get_audio_mixer,
+	msm_routing_put_audio_mixer),
+	SOC_SINGLE_EXT("MultiMedia3", MSM_BACKEND_DAI_MI2S_RX,
+	MSM_FRONTEND_DAI_MULTIMEDIA3, 1, 0, msm_routing_get_audio_mixer,
+	msm_routing_put_audio_mixer),
+	SOC_SINGLE_EXT("MultiMedia4", MSM_BACKEND_DAI_MI2S_RX,
+	MSM_FRONTEND_DAI_MULTIMEDIA4, 1, 0, msm_routing_get_audio_mixer,
+	msm_routing_put_audio_mixer),
+};
+
 static const struct snd_kcontrol_new hdmi_mixer_controls[] = {
 	SOC_SINGLE_EXT("MultiMedia1", MSM_BACKEND_DAI_HDMI_RX,
 	MSM_FRONTEND_DAI_MULTIMEDIA1, 1, 0, msm_routing_get_audio_mixer,
@@ -1118,6 +1134,7 @@
 	SND_SOC_DAPM_AIF_OUT("PRI_I2S_RX", "Primary I2S Playback", 0, 0, 0, 0),
 	SND_SOC_DAPM_AIF_OUT("SLIMBUS_0_RX", "Slimbus Playback", 0, 0, 0, 0),
 	SND_SOC_DAPM_AIF_OUT("HDMI", "HDMI Playback", 0, 0, 0 , 0),
+	SND_SOC_DAPM_AIF_OUT("MI2S_RX", "MI2S Playback", 0, 0, 0, 0),
 	SND_SOC_DAPM_AIF_IN("PRI_I2S_TX", "Primary I2S Capture", 0, 0, 0, 0),
 	SND_SOC_DAPM_AIF_IN("SLIMBUS_0_TX", "Slimbus Capture", 0, 0, 0, 0),
 	SND_SOC_DAPM_AIF_OUT("INT_BT_SCO_RX", "Internal BT-SCO Playback",
@@ -1151,6 +1168,8 @@
 	slimbus_rx_mixer_controls, ARRAY_SIZE(slimbus_rx_mixer_controls)),
 	SND_SOC_DAPM_MIXER("HDMI Mixer", SND_SOC_NOPM, 0, 0,
 	hdmi_mixer_controls, ARRAY_SIZE(hdmi_mixer_controls)),
+	SND_SOC_DAPM_MIXER("MI2S_RX Audio Mixer", SND_SOC_NOPM, 0, 0,
+	mi2s_rx_mixer_controls, ARRAY_SIZE(mi2s_rx_mixer_controls)),
 	SND_SOC_DAPM_MIXER("MultiMedia1 Mixer", SND_SOC_NOPM, 0, 0,
 	mmul1_mixer_controls, ARRAY_SIZE(mmul1_mixer_controls)),
 	SND_SOC_DAPM_MIXER("MultiMedia2 Mixer", SND_SOC_NOPM, 0, 0,
@@ -1228,6 +1247,11 @@
 
 	{"MultiMedia1 Mixer", "VOC_REC_UL", "INCALL_RECORD_TX"},
 	{"MultiMedia1 Mixer", "VOC_REC_DL", "INCALL_RECORD_RX"},
+	{"MI2S_RX Audio Mixer", "MultiMedia1", "MM_DL1"},
+	{"MI2S_RX Audio Mixer", "MultiMedia2", "MM_DL2"},
+	{"MI2S_RX Audio Mixer", "MultiMedia3", "MM_DL3"},
+	{"MI2S_RX Audio Mixer", "MultiMedia4", "MM_DL4"},
+	{"MI2S_RX", NULL, "MI2S_RX Audio Mixer"},
 
 	{"MultiMedia1 Mixer", "PRI_TX", "PRI_I2S_TX"},
 	{"MultiMedia1 Mixer", "SLIM_0_TX", "SLIMBUS_0_TX"},