The LCDK embeds a TLV320AIC3106 connected to the SoC McASP for analog
audio. This relies on the 'dummy' regulator as the codec is always on.
Quality is good with arecord -pipe- aplay on Line In/Line Out.
The MIC path doesn't seem to work yet.
Signed-off-by: Karl Beldan <kbel...@baylibre.com>
---
arch/arm/boot/dts/da850-lcdk.dts | 75 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
index dbcca0b..35b31d9 100644
--- a/arch/arm/boot/dts/da850-lcdk.dts
+++ b/arch/arm/boot/dts/da850-lcdk.dts
@@ -6,6 +6,7 @@
/dts-v1/;
#include "da850.dtsi"
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/sound/tlv320aic31xx-micbias.h>
/ {
model = "DA850/AM1808/OMAP-L138 LCDK";
@@ -23,10 +24,50 @@
device_type = "memory";
reg = <0xc0000000 0x08000000>;
};
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "DA850/OMAP-L138 LCDK";
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Line", "Line In",
+ "Line", "Line Out";
+ simple-audio-card,routing =
+ "MIC3L", "Mic Jack",
+ "MIC3R", "Mic Jack",
+ "Mic Jack", "Mic Bias",
+ "LINE1L", "Line In",
+ "LINE1R", "Line In",
+ "Line Out", "LLOUT",
+ "Line Out", "RLOUT";
+ simple-audio-card,format = "dsp_b";
+ simple-audio-card,bitclock-master = <&link0_codec>;
+ simple-audio-card,frame-master = <&link0_codec>;
+ simple-audio-card,bitclock-inversion;
+
+ simple-audio-card,cpu {
+ sound-dai = <&mcasp0>;
+ system-clock-frequency = <24576000>;
+ };
+
+ link0_codec: simple-audio-card,codec {
+ sound-dai = <&tlv320aic3106>;
+ system-clock-frequency = <24576000>;
+ };
+ };
};
&pmx_core {
status = "okay";
+
+ mcasp0_pins: pinmux_mcasp0_pins {
+ pinctrl-single,bits = <
+ /* AHCLKX AFSX ACLKX */
+ 0x00 0x00101010 0x00f0f0f0
+ /* ARX13 ARX14 */
+ 0x04 0x00000110 0x00000ff0
+ >;
+ };
};
&serial2 {
@@ -68,3 +109,37 @@
cd-gpios = <&gpio 64 GPIO_ACTIVE_HIGH>;
status = "okay";
};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+ clock-frequency = <100000>;
+ status = "okay";
+
+ tlv320aic3106: tlv320aic3106@18 {
+ #sound-dai-cells = <0>;
+ compatible = "ti,tlv320aic3106";
+ reg = <0x18>;
+ status = "okay";
+
+ ai3x-micbias-vg = <MICBIAS_2_5V>;
+ };
+};
+
+&mcasp0 {
+ #sound-dai-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcasp0_pins>;
+ status = "okay";
+
+ op-mode = <0>; /* DAVINCI_MCASP_IIS_MODE */
+ tdm-slots = <2>;
+ serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
+ 0 0 0 0
+ 0 0 0 0
+ 0 0 0 0
+ 0 1 2 0
+ >;
+ tx-num-evt = <32>;
+ rx-num-evt = <32>;
+};
--
2.9.2
