[PATCH v5 07/14] arm64: renesas: salvator-x: Sound SSI PIO support
Simon Horman
horms+renesas at verge.net.au
Thu Oct 29 16:27:53 PDT 2015
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
This patch adds PIO sound support for Salvator-X board.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 95 ++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index 0599b2be90ab..6a7df7e0ef7a 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -30,6 +30,28 @@
/* first 128MB is reserved for secure area. */
reg = <0x0 0x48000000 0x0 0x38000000>;
};
+
+ x12_clk: x12_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24576000>;
+ };
+
+ rsnd_ak4613: sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&sndcpu>;
+ simple-audio-card,frame-master = <&sndcpu>;
+
+ sndcpu: simple-audio-card,cpu {
+ sound-dai = <&rcar_sound>;
+ };
+
+ sndcodec: simple-audio-card,codec {
+ sound-dai = <&ak4613>;
+ };
+ };
};
&extal_clk {
@@ -50,6 +72,16 @@
renesas,groups = "i2c2_a";
renesas,function = "i2c2";
};
+
+ sound_pins: sound {
+ renesas,groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
+ renesas,function = "ssi";
+ };
+
+ sound_clk_pins: sound_clk {
+ renesas,groups = "audio_clkout3_a";
+ renesas,function = "audio_clk";
+ };
};
&scif1 {
@@ -71,4 +103,67 @@
pinctrl-names = "default";
status = "okay";
+
+ clock-frequency = <100000>;
+
+ ak4613: codec at 0x10 {
+ compatible = "asahi-kasei,ak4613";
+ #sound-dai-cells = <0>;
+ reg = <0x10>;
+ clocks = <&rcar_sound 3>;
+ };
+
+ cs2000: clk_multiplier at 4f {
+ #clock-cells = <0>;
+ compatible = "cirrus,cs2000-cp";
+ reg = <0x4f>;
+ clocks = <&rcar_sound 0>, <&x12_clk>;
+ clock-names = "clk_in", "ref_clk";
+ clock-frequency = <24576000>; /* 1/1 divide */
+ };
+};
+
+&rcar_sound {
+ pinctrl-0 = <&sound_pins &sound_clk_pins>;
+ pinctrl-names = "default";
+
+ /* Single DAI */
+ #sound-dai-cells = <0>;
+
+ /* audio_clkout0/1/2/3 */
+ #clock-cells = <1>;
+ clock-frequency = <12288000>;
+
+ status = "okay";
+
+ rcar_sound,dai {
+ dai0 {
+ playback = <&ssi0>;
+ capture = <&ssi1>;
+ };
+ };
+};
+
+&ssi0 {
+ pio-transfer;
+};
+
+&ssi1 {
+ pio-transfer;
+ shared-pin;
+};
+
+&audio_clk_a {
+ clock-frequency = <22579200>;
+};
+
+&audio_clk_b {
+ /*
+ * It should be below here, but it will be dead-lock
+ * since cs2000 requests audio_clkout (= <&rcar_sound 0>)
+ * and, rcar_sound (= audio_clk_b) requests cs2000.
+ * Here assumes cs2000 outputs fixed clock-frequency
+ * clocks = <&cs2000>;
+ */
+ clock-frequency = <24576000>;
};
--
2.1.4
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