linux-kernel - [PATCH] arm64: dts: rockchip: add rock-pi-4 analog audio

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Date:   Mon, 28 Jun 2021 14:30:33 +0300
From:   Adrian Ratiu <adrian.ratiu@...labora.com>
To:     Rob Herring <robh+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc:     jack@...xa.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: [PATCH] arm64: dts: rockchip: add rock-pi-4 analog audio

This adds the necessary pinctrl and nodes to enable the
analog audio on rk3399 rock-pi-4 SBCs using the es8316
codec and the audio-graph-card driver.

Signed-off-by: Adrian Ratiu <adrian.ratiu@...labora.com>
---
 .../boot/dts/rockchip/rk3399-rock-pi-4.dtsi   | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
index b28888ea9262..77781d9150ac 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -128,6 +128,12 @@ vdd_log: vdd-log {
 		regulator-max-microvolt = <1400000>;
 		vin-supply = <&vcc5v0_sys>;
 	};
+
+	sound {
+		compatible = "audio-graph-card";
+		label = "rockchip,rk3399";
+		dais = <&i2s0_p0>;
+	};
 };
 
 &cpu_l0 {
@@ -422,6 +428,24 @@ &i2c1 {
 	i2c-scl-rising-time-ns = <300>;
 	i2c-scl-falling-time-ns = <15>;
 	status = "okay";
+
+	es8316: codec@11 {
+		compatible = "everest,es8316";
+		reg = <0x11>;
+		clocks = <&cru SCLK_I2S_8CH_OUT>;
+		clock-names = "mclk";
+		pinctrl-names = "default";
+		pinctrl-0 = <&hp_det_pin>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <RK_PA0 IRQ_TYPE_LEVEL_HIGH>;
+		#sound-dai-cells = <0>;
+
+		port {
+			es8316_p0_0: endpoint {
+				remote-endpoint = <&i2s0_p0_0>;
+			};
+		};
+	};
 };
 
 &i2c3 {
@@ -441,6 +465,14 @@ &i2s0 {
 	rockchip,capture-channels = <2>;
 	rockchip,playback-channels = <2>;
 	status = "okay";
+
+	i2s0_p0: port {
+		i2s0_p0_0: endpoint {
+			dai-format = "i2s";
+			mclk-fs = <256>;
+			remote-endpoint = <&es8316_p0_0>;
+		};
+	};
 };
 
 &i2s1 {
@@ -556,6 +588,12 @@ wifi_host_wake_l: wifi-host-wake-l {
 			rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	es8316 {
+		hp_det_pin: hp-det-pin {
+			rockchip,pins = <1 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
 };
 
 &pwm2 {
-- 
2.32.0