linux-kernel - [PATCH v2 05/13] arm64: dts: rockchip: Add analog audio on ODROID-M1

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Message-Id: <20220926183727.1893566-6-aurelien@aurel32.net>
Date:   Mon, 26 Sep 2022 20:37:19 +0200
From:   Aurelien Jarno <aurelien@...el32.net>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Rockchip SoC
        support),
        linux-rockchip@...ts.infradead.org (open list:ARM/Rockchip SoC support),
        linux-kernel@...r.kernel.org (open list)
Cc:     Dongjin Kim <tobetter@...il.com>,
        Aurelien Jarno <aurelien@...el32.net>
Subject: [PATCH v2 05/13] arm64: dts: rockchip: Add analog audio on ODROID-M1

On the ODROID-M1, the I2S1 TDM controller is connected to the rk809
codec in I2S mode. It is used to provide a stereo headphones output and
a mono speaker output. A GPIO with an external pullup is used as an
headphone detection input.

Signed-off-by: Aurelien Jarno <aurelien@...el32.net>
---
 .../boot/dts/rockchip/rk3568-odroid-m1.dts    | 43 ++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts b/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
index 877b9515ad98..3079abbec5dc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
@@ -59,6 +59,31 @@ led_work: led-1 {
 		};
 	};
 
+	rk809-sound {
+		compatible = "simple-audio-card";
+		pinctrl-names = "default";
+		pinctrl-0 = <&hp_det_pin>;
+		simple-audio-card,name = "Analog RK817";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,hp-det-gpio = <&gpio0 RK_PB0 GPIO_ACTIVE_HIGH>;
+		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,widgets =
+			"Headphone", "Headphones",
+			"Speaker", "Speaker";
+		simple-audio-card,routing =
+			"Headphones", "HPOL",
+			"Headphones", "HPOR",
+			"Speaker", "SPKO";
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s1_8ch>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&rk809>;
+		};
+	};
+
 	vcc3v3_sys: vcc3v3-sys-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc3v3_sys";
@@ -131,10 +156,15 @@ 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_l>;
+		pinctrl-0 = <&pmic_int_l>, <&i2s1m0_mclk>;
 		rockchip,system-power-controller;
+		#sound-dai-cells = <0>;
 		vcc1-supply = <&vcc3v3_sys>;
 		vcc2-supply = <&vcc3v3_sys>;
 		vcc3-supply = <&vcc3v3_sys>;
@@ -340,6 +370,11 @@ regulator-state-mem {
 	};
 };
 
+&i2s1_8ch {
+	rockchip,trcm-sync-tx-only;
+	status = "okay";
+};
+
 &mdio0 {
 	rgmii_phy0: ethernet-phy@0 {
 		compatible = "ethernet-phy-ieee802.3-c22";
@@ -365,6 +400,12 @@ pmic_int_l: pmic-int-l {
 			rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
 		};
 	};
+
+	rk809 {
+		hp_det_pin: hp-det-pin {
+			rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };
 
 &pmu_io_domains {
-- 
2.35.1