Hi
> Define the SILK board dependent part of the R8A7794 sound device node.
> Add device node for Asahi Kasei AK4643 stereo codec to the I2C1 bus.
> Add the "simple-audio-card" device node to interconnect the SoC sound
> device and the codec.
>
> This patch is based on the commit 493b4da7c10c ("ARM: dts: porter: add
> sound support").
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
>
> ---
> This patch is against the 'renesas-devel-20160209-v4.5-rc3' tag of Simon
> Horman's 'renesas.git' repo. It depends on the 5 R8A7794 sound support patches
> in posted earlier this week in order to build and the R8A7794 PFC driver
> patches posted yesterday in order for the pins to be properly configured
> (but works without the pins configured too)...
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
This patch doesn't use SRC, and it is no problem.
We need fixup src.c driver for r8a7794 because it lacks some SRCs.
> arch/arm/boot/dts/r8a7794-silk.dts | 71 +++++++++++++++++++++++++++++++++++++
> 1 file changed, 71 insertions(+)
>
> Index: renesas/arch/arm/boot/dts/r8a7794-silk.dts
> ===================================================================
> --- renesas.orig/arch/arm/boot/dts/r8a7794-silk.dts
> +++ renesas/arch/arm/boot/dts/r8a7794-silk.dts
> @@ -10,6 +10,17 @@
> * kind, whether express or implied.
> */
>
> +/*
> + * SSI-AK4643
> + *
> + * SW1: 2-1: AK4643
> + * 2-3: ADV7511
> + *
> + * This command is required before playback/capture:
> + *
> + * amixer set "LINEOUT Mixer DACL" on
> + */
> +
> /dts-v1/;
> #include "r8a7794.dtsi"
> #include <dt-bindings/gpio/gpio.h>
> @@ -119,6 +130,30 @@
> #clock-cells = <0>;
> clock-frequency = <74250000>;
> };
> +
> + x9_clk: x9-clock {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <12288000>;
> + 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 = <&ak4643>;
> + clocks = <&x9_clk>;
> + };
> + };
> };
>
> &extal_clk {
> @@ -183,6 +218,16 @@
> renesas,groups = "usb1";
> renesas,function = "usb1";
> };
> +
> + ssi_pins: sound {
> + renesas,groups = "ssi0129_ctrl", "ssi0_data", "ssi1_data";
> + renesas,function = "ssi";
> + };
> +
> + audio_clk_pins: audio_clk {
> + renesas,groups = "audio_clkc";
> + renesas,function = "audio_clk";
> + };
> };
>
> &scif2 {
> @@ -220,6 +265,12 @@
> status = "okay";
> clock-frequency = <400000>;
>
> + ak4643: codec@12 {
> + compatible = "asahi-kasei,ak4643";
> + #sound-dai-cells = <0>;
> + reg = <0x12>;
> + };
> +
> composite-in@20 {
> compatible = "adi,adv7180";
> reg = <0x20>;
> @@ -380,3 +431,23 @@
> };
> };
> };
> +
> +&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;
> +};
>
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