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From:   Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
To:     Rob Herring <robh+dt@kernel.org>, Heiko Stuebner <heiko@sntech.de>
Cc:     Nicolas Frattaroli <frattaroli.nicolas@gmail.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 4/4] arm64: dts: rockchip: add analog audio on Quartz64
Date:   Fri, 20 Aug 2021 20:27:31 +0200
Message-Id: <20210820182731.29370-5-frattaroli.nicolas@gmail.com>
In-Reply-To: <20210820182731.29370-1-frattaroli.nicolas@gmail.com>
References: <20210820182731.29370-1-frattaroli.nicolas@gmail.com>
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On the Quartz64 Model A, the I2S1 TDM controller is connected
to the rk817 codec in I2S mode. Enabling it and adding the
necessary simple-sound-card and codec nodes allows for analog
audio output on the PINE64 Quartz64 Model A SBC.

Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
---
 .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
index b239f314b38a..c974b0e22ac0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
@@ -50,6 +50,20 @@ led-diy {
 		};
 	};
 
+	rk817-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,name = "Analog RK817";
+		simple-audio-card,mclk-fs = <256>;
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s1_8ch>;
+		};
+		simple-audio-card,codec {
+			sound-dai = <&rk817>;
+		};
+	};
+
 	vcc12v_dcin: vcc12v_dcin {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc12v_dcin";
@@ -174,8 +188,13 @@ rk817: pmic@20 {
 		interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
 		clock-output-names = "rk808-clkout1", "rk808-clkout2";
 
+		#sound-dai-cells = <0>;
+		clock-names = "mclk";
+		clocks = <&cru I2S1_MCLKOUT_TX>;
+		assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
+		assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&pmic_int_l>;
+		pinctrl-0 = <&pmic_int_l>, <&i2s1m0_mclk>;
 		rockchip,system-power-controller;
 		wakeup-source;
 		#clock-cells = <1>;
@@ -364,9 +383,23 @@ regulator-state-mem {
 				};
 			};
 		};
+
+		rk817_codec: codec {
+		};
+
 	};
 };
 
+&i2s1_8ch {
+	status = "okay";
+	rockchip,trcm-sync-tx-only;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s1m0_sclktx
+		     &i2s1m0_lrcktx
+		     &i2s1m0_sdi0
+		     &i2s1m0_sdo0>;
+};
+
 &mdio1 {
 	rgmii_phy1: ethernet-phy@0 {
 		compatible = "ethernet-phy-ieee802.3-c22";
-- 
2.32.0