alsa-state: Add support for splitting ESAI device

Split one ESAI device into two virtual devices, one
6 channel and one 2 channel.

Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

1 files changed, 27 insertions, 0 deletions

diff --git a/recipes-bsp/alsa-state/alsa-state/imx/asound.conf b/recipes-bsp/alsa-state/alsa-state/imx/asound.conf
index 37cb76f8..0084f4a0 100644
--- a/recipes-bsp/alsa-state/alsa-state/imx/asound.conf
+++ b/recipes-bsp/alsa-state/alsa-state/imx/asound.conf
@@ -242,3 +242,30 @@ ctl.mixer0{
 type hw
 card 0
 }
+
+pcm_slave.esai{
+        pcm "hw:0,0"
+        channels 8
+        rate 48000
+        period_time 40000
+}
+
+pcm.esaich1to6{
+        type dshare
+        ipc_key 5778293
+        slave esai
+        bindings.0 0
+        bindings.1 4
+        bindings.2 1
+        bindings.3 5
+        bindings.4 2
+        bindings.5 6
+}
+
+pcm.esaich78{
+        type dshare
+        ipc_key 5778293
+        slave esai
+        bindings.0 3
+        bindings.1 7
+}