linux-kernel - [PATCH v1 5/5] riscv: dts: starfive: Add JH7110 PWM-DAC support

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Message-ID: <20230626110909.38718-6-hal.feng@starfivetech.com>
Date:   Mon, 26 Jun 2023 19:09:09 +0800
From:   Hal Feng <hal.feng@...rfivetech.com>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor@...nel.org>,
        "Walker Chen" <walker.chen@...rfivetech.com>,
        Xingyu Wu <xingyu.wu@...rfivetech.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Hal Feng <hal.feng@...rfivetech.com>
CC:     <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 5/5] riscv: dts: starfive: Add JH7110 PWM-DAC support

Add PWM-DAC support for StarFive JH7110 SoC.

Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
---
 .../jh7110-starfive-visionfive-2.dtsi         | 50 +++++++++++++++++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      | 13 +++++
 2 files changed, 63 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index 19b5954ee72d..5ca66a65e722 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -36,6 +36,34 @@ gpio-restart {
 		gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
 		priority = <224>;
 	};
+
+	pwmdac_dit: pwmdac-dit {
+		compatible = "starfive,jh7110-pwmdac-dit";
+		#sound-dai-cells = <0>;
+	};
+
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "StarFive-PWMDAC-Sound-Card";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		simple-audio-card,dai-link@0 {
+			reg = <0>;
+			format = "left_j";
+			bitclock-master = <&sndcpu0>;
+			frame-master = <&sndcpu0>;
+			status = "okay";
+
+			sndcpu0: cpu {
+				sound-dai = <&pwmdac>;
+			};
+
+			codec {
+				sound-dai = <&pwmdac_dit>;
+			};
+		};
+	};
 };
 
 &dvp_clk {
@@ -191,6 +219,22 @@ GPOEN_SYS_I2C6_DATA,
 		};
 	};
 
+	pwmdac_pins: pwmdac-0 {
+		pwmdac-pins {
+			pinmux = <GPIOMUX(33, GPOUT_SYS_PWMDAC_LEFT,
+					      GPOEN_ENABLE,
+					      GPI_NONE)>,
+				 <GPIOMUX(34, GPOUT_SYS_PWMDAC_RIGHT,
+					      GPOEN_ENABLE,
+					      GPI_NONE)>;
+			bias-disable;
+			drive-strength = <2>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
 	uart0_pins: uart0-0 {
 		tx-pins {
 			pinmux = <GPIOMUX(5, GPOUT_SYS_UART0_TX,
@@ -250,6 +294,12 @@ GPOEN_DISABLE,
 	};
 };
 
+&pwmdac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwmdac_pins>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins>;
diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index cfda6fb0d91b..bbb3f65e6f80 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -387,6 +387,19 @@ tdm: tdm@...90000 {
 			status = "disabled";
 		};
 
+		pwmdac: pwmdac@...b0000 {
+			compatible = "starfive,jh7110-pwmdac";
+			reg = <0x0 0x100b0000 0x0 0x1000>;
+			clocks = <&syscrg JH7110_SYSCLK_PWMDAC_APB>,
+				 <&syscrg JH7110_SYSCLK_PWMDAC_CORE>;
+			clock-names = "apb", "core";
+			resets = <&syscrg JH7110_SYSRST_PWMDAC_APB>;
+			dmas = <&dma 22>;
+			dma-names = "tx";
+			#sound-dai-cells = <0>;
+			status = "disabled";
+		};
+
 		stgcrg: clock-controller@...30000 {
 			compatible = "starfive,jh7110-stgcrg";
 			reg = <0x0 0x10230000 0x0 0x10000>;
-- 
2.38.1