openwrt/target/linux/d1/patches-6.1/0042-riscv-dts-allwinner-Add-DMIC-sound-cards.patch

From 500a3fc1ce1b216ef4f4df73e4e048170764189e Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Wed, 17 Aug 2022 02:20:49 -0500
Subject: [PATCH 042/117] riscv: dts: allwinner: Add DMIC sound cards

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
 .../sun20i-d1-lichee-rv-86-panel.dtsi         | 43 ++++++++++++++++++
 .../allwinner/sun20i-d1-lichee-rv-dock.dts    | 45 +++++++++++++++++++
 2 files changed, 88 insertions(+)

--- a/arch/riscv/boot/dts/allwinner/sun20i-d1-lichee-rv-86-panel.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-lichee-rv-86-panel.dtsi
@@ -9,6 +9,33 @@
 		ethernet1 = &xr829;
 	};
 
+	dmic_codec: dmic-codec {
+		compatible = "dmic-codec";
+		num-channels = <2>;
+		#sound-dai-cells = <0>;
+	};
+
+	dmic-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "DMIC";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		simple-audio-card,dai-link@0 {
+			format = "pdm";
+			frame-master = <&link0_cpu>;
+			bitclock-master = <&link0_cpu>;
+
+			link0_cpu: cpu {
+				sound-dai = <&dmic>;
+			};
+
+			link0_codec: codec {
+				sound-dai = <&dmic_codec>;
+			};
+		};
+	};
+
 	/* PC1 is repurposed as BT_WAKE_AP */
 	/delete-node/ leds;
 
@@ -24,6 +51,12 @@
 	};
 };
 
+&dmic {
+	pinctrl-0 = <&dmic_pb11_d0_pin>, <&dmic_pe17_clk_pin>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &ehci1 {
 	status = "okay";
 };
@@ -69,6 +102,16 @@
 		pins = "PG11";
 		function = "clk";
 	};
+
+	dmic_pb11_d0_pin: dmic-pb11-d0-pin {
+		pins = "PB11";
+		function = "dmic";
+	};
+
+	dmic_pe17_clk_pin: dmic-pe17-clk-pin {
+		pins = "PE17";
+		function = "dmic";
+	};
 };
 
 &uart1 {
--- a/arch/riscv/boot/dts/allwinner/sun20i-d1-lichee-rv-dock.dts
+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-lichee-rv-dock.dts
@@ -15,12 +15,45 @@
 		ethernet1 = &rtl8723ds;
 	};
 
+	dmic_codec: dmic-codec {
+		compatible = "dmic-codec";
+		num-channels = <2>;
+		#sound-dai-cells = <0>;
+	};
+
+	dmic-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "DMIC";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		simple-audio-card,dai-link@0 {
+			format = "pdm";
+			frame-master = <&link0_cpu>;
+			bitclock-master = <&link0_cpu>;
+
+			link0_cpu: cpu {
+				sound-dai = <&dmic>;
+			};
+
+			link0_codec: codec {
+				sound-dai = <&dmic_codec>;
+			};
+		};
+	};
+
 	wifi_pwrseq: wifi-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&pio 6 12 GPIO_ACTIVE_LOW>; /* PG12 */
 	};
 };
 
+&dmic {
+	pinctrl-0 = <&dmic_pb11_d0_pin>, <&dmic_pe17_clk_pin>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &ehci1 {
 	status = "okay";
 };
@@ -55,6 +88,18 @@
 	status = "okay";
 };
 
+&pio {
+	dmic_pb11_d0_pin: dmic-pb11-d0-pin {
+		pins = "PB11";
+		function = "dmic";
+	};
+
+	dmic_pe17_clk_pin: dmic-pe17-clk-pin {
+		pins = "PE17";
+		function = "dmic";
+	};
+};
+
 &uart1 {
 	uart-has-rtscts;
 	pinctrl-0 = <&uart1_pg6_pins>, <&uart1_pg8_rts_cts_pins>;