linux-kernel - [PATCH v1 2/2] riscv: dts: starfive: jh7110: add the node and pins configuration for tdm

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Date:   Mon, 24 Jul 2023 14:51:58 +0800
From:   Walker Chen <walker.chen@...rfivetech.com>
To:     Conor Dooley <conor+dt@...nel.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Hal Feng <hal.feng@...rfivetech.com>
CC:     <linux-riscv@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        Walker Chen <walker.chen@...rfivetech.com>
Subject: [PATCH v1 2/2] riscv: dts: starfive: jh7110: add the node and pins configuration for tdm

Add the tdm controller node and pins configuration of tdm for the
StarFive JH7110 SoC.

Reviewed-by: Hal Feng <hal.feng@...rfivetech.com>
Signed-off-by: Walker Chen <walker.chen@...rfivetech.com>
---
 .../jh7110-starfive-visionfive-2.dtsi         | 40 +++++++++++++++++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      | 21 ++++++++++
 2 files changed, 61 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 5feff4673503..f49992097448 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -265,6 +265,40 @@
 			slew-rate = <0>;
 		};
 	};
+
+	tdm_pins: tdm-0 {
+		tx-pins {
+			pinmux = <GPIOMUX(44, GPOUT_SYS_TDM_TXD,
+					      GPOEN_ENABLE,
+					      GPI_NONE)>;
+			bias-pull-up;
+			drive-strength = <2>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+
+		rx-pins {
+			pinmux = <GPIOMUX(61, GPOUT_HIGH,
+					      GPOEN_DISABLE,
+					      GPI_SYS_TDM_RXD)>;
+			input-enable;
+		};
+
+		sync-pins {
+			pinmux = <GPIOMUX(63, GPOUT_HIGH,
+					      GPOEN_DISABLE,
+					      GPI_SYS_TDM_SYNC)>;
+			input-enable;
+		};
+
+		pcmclk-pins {
+			pinmux = <GPIOMUX(38, GPOUT_HIGH,
+					      GPOEN_DISABLE,
+					      GPI_SYS_TDM_CLK)>;
+			input-enable;
+		};
+	};
 };
 
 &uart0 {
@@ -273,6 +307,12 @@
 	status = "okay";
 };
 
+&tdm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&tdm_pins>;
+	status = "okay";
+};
+
 &U74_1 {
 	cpu-supply = <&vdd_cpu>;
 };
diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index 411a1bd4ddc9..d3973f5e315c 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -446,6 +446,27 @@
 			status = "disabled";
 		};
 
+		tdm: tdm@...90000 {
+			compatible = "starfive,jh7110-tdm";
+			reg = <0x0 0x10090000 0x0 0x1000>;
+			clocks = <&syscrg JH7110_SYSCLK_TDM_AHB>,
+				 <&syscrg JH7110_SYSCLK_TDM_APB>,
+				 <&syscrg JH7110_SYSCLK_TDM_INTERNAL>,
+				 <&syscrg JH7110_SYSCLK_TDM_TDM>,
+				 <&syscrg JH7110_SYSCLK_MCLK_INNER>,
+				 <&tdm_ext>;
+			clock-names = "tdm_ahb", "tdm_apb",
+				      "tdm_internal", "tdm",
+				      "mclk_inner", "tdm_ext";
+			resets = <&syscrg JH7110_SYSRST_TDM_AHB>,
+				 <&syscrg JH7110_SYSRST_TDM_APB>,
+				 <&syscrg JH7110_SYSRST_TDM_CORE>;
+			dmas = <&dma 20>, <&dma 21>;
+			dma-names = "rx","tx";
+			#sound-dai-cells = <0>;
+			status = "disabled";
+		};
+
 		stgcrg: clock-controller@...30000 {
 			compatible = "starfive,jh7110-stgcrg";
 			reg = <0x0 0x10230000 0x0 0x10000>;
-- 
2.17.1