arm64: dts: renesas: ulcb-kf: add pcm3168 sound codec

KingFisher has pcm3168 sound codec. This patch enables it.
Because pcm3168 can't handle symmetric channel on playback/
capture, we need to handle it as different DAI.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index 1b316d7..7a09576 100644 (file)
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -6,11 +6,38 @@
  * Copyright (C) 2017 Cogent Embedded, Inc.
  */
 
+/*
+ * SSI-PCM3168A
+ *     aplay   -D plughw:0,2 xxx.wav
+ *     arecord -D plughw:0,3 xxx.wav
+ */
+
 / {
        aliases {
                serial1 = &hscif0;
                serial2 = &scif1;
        };
+
+       clksndsel: clksndsel {
+               #clock-cells = <0>;
+               compatible = "gpio-mux-clock";
+               clocks = <&cs2000>, <&audio_clk_a>; /* clk8snd, clksnd */
+               select-gpios = <&gpio_exp_75 13 GPIO_ACTIVE_HIGH>;
+       };
+
+       snd_3p3v: regulator-snd_3p3v {
+               compatible = "regulator-fixed";
+               regulator-name = "snd-3.3v";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
+       snd_vcc5v: regulator-snd_vcc5v {
+               compatible = "regulator-fixed";
+               regulator-name = "snd-vcc5v";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+       };
 };
 
 &can0 {
@@ -44,6 +71,7 @@
 };
 
 &i2c2 {
+       /* U11 */
        gpio_exp_74: gpio@74 {
                compatible = "ti,tca9539";
                reg = <0x74>;
@@ -53,6 +81,13 @@
                interrupt-parent = <&gpio6>;
                interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
 
+               audio_out_off {
+                       gpio-hog;
+                       gpios = <0 GPIO_ACTIVE_HIGH>; /* P00 */
+                       output-high;
+                       line-name = "Audio_Out_OFF";
+               };
+
                hub_pwen {
                        gpio-hog;
                        gpios = <6 GPIO_ACTIVE_HIGH>;
@@ -80,8 +115,16 @@
                        output-high;
                        line-name = "OTG EXTLPn";
                };
+
+               snd_rst {
+                       gpio-hog;
+                       gpios = <15 GPIO_ACTIVE_HIGH>; /* P17 */
+                       output-high;
+                       line-name = "SND_RST";
+               };
        };
 
+       /* U5 */
        gpio_exp_75: gpio@75 {
                compatible = "ti,tca9539";
                reg = <0x75>;
@@ -98,6 +141,48 @@
                #size-cells = <0>;
                reg = <0x71>;
                reset-gpios = <&gpio5 3 GPIO_ACTIVE_LOW>;
+
+               /* Audio_SDA, Audio_SCL */
+               i2c@7 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <7>;
+
+                       pcm3168a: audio-codec@44 {
+                               #sound-dai-cells = <0>;
+                               compatible = "ti,pcm3168a";
+                               reg = <0x44>;
+                               clocks = <&clksndsel>;
+                               clock-names = "scki";
+
+                               VDD1-supply     = <&snd_3p3v>;
+                               VDD2-supply     = <&snd_3p3v>;
+                               VCCAD1-supply   = <&snd_vcc5v>;
+                               VCCAD2-supply   = <&snd_vcc5v>;
+                               VCCDA1-supply   = <&snd_vcc5v>;
+                               VCCDA2-supply   = <&snd_vcc5v>;
+
+                               ports {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       mclk-fs = <512>;
+                                       port@0 {
+                                               reg = <0>;
+                                               pcm3168a_endpoint_p: endpoint {
+                                                       remote-endpoint = <&rsnd_for_pcm3168a_play>;
+                                                       clocks = <&clksndsel>;
+                                               };
+                                       };
+                                       port@1 {
+                                               reg = <1>;
+                                               pcm3168a_endpoint_c: endpoint {
+                                                       remote-endpoint = <&rsnd_for_pcm3168a_capture>;
+                                                       clocks = <&clksndsel>;
+                                               };
+                                       };
+                               };
+                       };
+               };
        };
 };
 
@@ -173,6 +258,11 @@
                groups = "usb0";
                function = "usb0";
        };
+
+       sound_pcm_pins: sound-pcm {
+               groups = "ssi349_ctrl", "ssi3_data", "ssi4_data";
+               function = "ssi";
+       };
 };
 
 &scif1 {
@@ -193,3 +283,51 @@
 &xhci0 {
        status = "okay";
 };
+
+&sound_card {
+       dais = <&rsnd_port0     /* ak4613 */
+               &rsnd_port1     /* HDMI0  */
+               &rsnd_port2     /* pcm3168a playback */
+               &rsnd_port3     /* pcm3168a capture  */
+               >;
+};
+
+&rcar_sound {
+       pinctrl-0 = <&sound_pins
+                    &sound_clk_pins
+                    &sound_pcm_pins>;
+
+       ports {
+               /* rsnd_port0/1 are on salvator-common */
+               rsnd_port2: port@2 {
+                       reg = <2>;
+                       rsnd_for_pcm3168a_play: endpoint {
+                               remote-endpoint = <&pcm3168a_endpoint_p>;
+
+                               dai-format = "i2s";
+                               bitclock-master = <&rsnd_for_pcm3168a_play>;
+                               frame-master = <&rsnd_for_pcm3168a_play>;
+                               dai-tdm-slot-num = <8>;
+
+                               playback = <&ssi3>;
+                       };
+               };
+               rsnd_port3: port@3 {
+                       reg = <3>;
+                       rsnd_for_pcm3168a_capture: endpoint {
+                               remote-endpoint = <&pcm3168a_endpoint_c>;
+
+                               dai-format = "i2s";
+                               bitclock-master = <&rsnd_for_pcm3168a_capture>;
+                               frame-master = <&rsnd_for_pcm3168a_capture>;
+                               dai-tdm-slot-num = <6>;
+
+                               capture  = <&ssi4>;
+                       };
+               };
+       };
+};
+
+&ssi4 {
+       shared-pin;
+};