From: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com>
Define the Porter board dependent part of the R8A7791 sound device node.
Add device node for Asahi Kasei AK4642 stereo codec to the I2C2 bus.
Add the "simple-audio-card" device node to interconnect the SoC sound
device and the codec.
Signed-off-by: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
---
arch/arm/boot/dts/r8a7791-porter.dts | 71 ++++++++++++++++++++++++++++++++++++
1 file changed, 71 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791-porter.dts
b/arch/arm/boot/dts/r8a7791-porter.dts
index fe81fa0e478c..5015eaa0ae50 100644
--- a/arch/arm/boot/dts/r8a7791-porter.dts
+++ b/arch/arm/boot/dts/r8a7791-porter.dts
@@ -8,6 +8,17 @@
* kind, whether express or implied.
*/
+/*
+ * SSI-AK4642
+ *
+ * SW3: 1: AK4642
+ * 3: ADV7511
+ *
+ * This command is required before playback/capture:
+ *
+ * amixer set "LINEOUT Mixer DACL" on
+ */
+
/dts-v1/;
#include "r8a7791.dtsi"
#include <dt-bindings/gpio/gpio.h>
@@ -101,6 +112,30 @@
#clock-cells = <0>;
clock-frequency = <74250000>;
};
+
+ x14_clk: x14-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <11289600>;
+ clock-output-names = "audio_clock";
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&soundcodec>;
+ simple-audio-card,frame-master = <&soundcodec>;
+
+ simple-audio-card,cpu {
+ sound-dai = <&rcar_sound>;
+ };
+
+ soundcodec: simple-audio-card,codec {
+ sound-dai = <&ak4642>;
+ clocks = <&x14_clk>;
+ };
+ };
};
&extal_clk {
@@ -167,6 +202,16 @@
renesas,groups = "du_rgb888", "du_sync", "du_disp",
"du_clk_out_0";
renesas,function = "du";
};
+
+ ssi_pins: sound {
+ renesas,groups = "ssi0129_ctrl", "ssi0_data", "ssi1_data";
+ renesas,function = "ssi";
+ };
+
+ audio_clk_pins: audio_clk {
+ renesas,groups = "audio_clk_a";
+ renesas,function = "audio_clk";
+ };
};
&scif0 {
@@ -257,6 +302,12 @@
status = "okay";
clock-frequency = <400000>;
+ ak4642: codec@12 {
+ compatible = "asahi-kasei,ak4642";
+ #sound-dai-cells = <0>;
+ reg = <0x12>;
+ };
+
composite-in@20 {
compatible = "adi,adv7180";
reg = <0x20>;
@@ -385,3 +436,23 @@
};
};
};
+
+&rcar_sound {
+ pinctrl-0 = <&ssi_pins &audio_clk_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ /* Single DAI */
+ #sound-dai-cells = <0>;
+
+ rcar_sound,dai {
+ dai0 {
+ playback = <&ssi0>;
+ capture = <&ssi1>;
+ };
+ };
+};
+
+&ssi1 {
+ shared-pin;
+};
--
2.7.0.rc3.207.g0ac5344
