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From:   Michael Riesch <michael.riesch@wolfvision.net>
To:     devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Cc:     Rob Herring <robh+dt@kernel.org>, Heiko Stuebner <heiko@sntech.de>,
        Michael Riesch <michael.riesch@wolfvision.net>,
        Liang Chen <cl@rock-chips.com>, frank-w@public-files.de
Subject: [PATCH 2/2] arm64: dts: rockchip: enable rk809 audio codec on the rk3568 evb1
Date:   Tue, 22 Feb 2022 18:50:04 +0100
Message-Id: <20220222175004.1308990-2-michael.riesch@wolfvision.net>
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Enable the Rockchip RK809 audio codec on the Rockchip RK3568
EVB1. This requires the VCCIO_ACODEC voltage regulator to be set
to always on.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
---
 .../boot/dts/rockchip/rk3568-evb1-v10.dts     | 31 ++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts
index aaf7b4bed24b..1ed92531e626 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts
@@ -45,6 +45,20 @@ led_work: led-work {
 		};
 	};
 
+	rk809-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,name = "Analog RK809";
+		simple-audio-card,mclk-fs = <256>;
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s1_8ch>;
+		};
+		simple-audio-card,codec {
+			sound-dai = <&rk809>;
+		};
+	};
+
 	vcc3v3_sys: vcc3v3-sys {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc3v3_sys";
@@ -165,10 +179,15 @@ rk809: pmic@20 {
 		reg = <0x20>;
 		interrupt-parent = <&gpio0>;
 		interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
+		assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
+		assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
 		#clock-cells = <1>;
+		clock-names = "mclk";
+		clocks = <&cru I2S1_MCLKOUT_TX>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&pmic_int>;
+		pinctrl-0 = <&pmic_int>, <&i2s1m0_mclk>;
 		rockchip,system-power-controller;
+		#sound-dai-cells = <0>;
 		vcc1-supply = <&vcc3v3_sys>;
 		vcc2-supply = <&vcc3v3_sys>;
 		vcc3-supply = <&vcc3v3_sys>;
@@ -282,6 +301,7 @@ regulator-state-mem {
 
 			vccio_acodec: LDO_REG4 {
 				regulator-name = "vccio_acodec";
+				regulator-always-on;
 				regulator-min-microvolt = <3300000>;
 				regulator-max-microvolt = <3300000>;
 
@@ -366,6 +386,10 @@ regulator-state-mem {
 				};
 			};
 		};
+
+		codec {
+			mic-in-differential;
+		};
 	};
 };
 
@@ -386,6 +410,11 @@ touchscreen0: goodix@14 {
 	};
 };
 
+&i2s1_8ch {
+	rockchip,trcm-sync-tx-only;
+	status = "okay";
+};
+
 &mdio0 {
 	rgmii_phy0: ethernet-phy@0 {
 		compatible = "ethernet-phy-ieee802.3-c22";
-- 
2.30.2