linux-kernel - [PATCH 2/3] tda998x: adding sound support for Juno in the DT

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Date:	Mon, 30 May 2016 16:15:53 +0100
From:	Joao Pinto <Joao.Pinto@...opsys.com>
To:	linux-kernel@...r.kernel.org
Cc:	ijc+devicetree@...lion.org.uk, rmk+kernel@...linux.org.uk,
	linux@...linux.org.uk, liviu.dudau@....com, ryan.harkin@...aro.org,
	Joao Pinto <Joao.Pinto@...opsys.com>
Subject: [PATCH 2/3] tda998x: adding sound support for Juno in the DT

This patch adds the sound over HDMI feature to the Juno Device Tree.

Signed-off-by: Joao Pinto <jpinto@...opsys.com>
---
 arch/arm64/boot/dts/arm/juno-base.dtsi | 92 +++++++++++++++++++----
 1 file changed, 78 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index 68ccc39..50c0c9a 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -105,17 +105,17 @@
 		clocks {
 			compatible = "arm,scpi-clocks";
 
-			scpi_dvfs: scpi-dvfs {
+			scpi_dvfs: scpi_clocks@0 {
 				compatible = "arm,scpi-dvfs-clocks";
 				#clock-cells = <1>;
 				clock-indices = <0>, <1>, <2>;
-				clock-output-names = "atlclk", "aplclk","gpuclk";
+				clock-output-names = "atlclk", "aplclk","clk_mali";
 			};
-			scpi_clk: scpi-clk {
+			scpi_clk: scpi_clocks@3 {
 				compatible = "arm,scpi-variable-clocks";
 				#clock-cells = <1>;
-				clock-indices = <3>;
-				clock-output-names = "pxlclk";
+				clock-indices = <3>, <4>, <5>;
+				clock-output-names = "pxlclk0", "pxlclk1", "i2sclk";
 			};
 		};
 
@@ -127,7 +127,7 @@
 
 	/include/ "juno-clocks.dtsi"
 
-	dma@...00000 {
+	dma0: dma@...00000 {
 		compatible = "arm,pl330", "arm,primecell";
 		reg = <0x0 0x7ff00000 0 0x1000>;
 		#dma-cells = <1>;
@@ -144,8 +144,10 @@
 			     <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&soc_faxiclk>;
 		clock-names = "apb_pclk";
+		dmas = <&dma0 1>, <&dma0 2>;
+		dma-names = "rx", "tx";
 	};
-
+/*
 	hdlcd@...50000 {
 		compatible = "arm,hdlcd";
 		reg = <0 0x7ff50000 0 0x1000>;
@@ -154,21 +156,21 @@
 		clock-names = "pxlclk";
 
 		port {
-			hdlcd1_output: hdlcd1-endpoint {
+			hdlcd1_output: endpoint@0 {
 				remote-endpoint = <&tda998x_1_input>;
 			};
 		};
 	};
-
+*/
 	hdlcd@...60000 {
 		compatible = "arm,hdlcd";
 		reg = <0 0x7ff60000 0 0x1000>;
 		interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&scpi_clk 3>;
+		clocks = <&scpi_clk 4>;
 		clock-names = "pxlclk";
 
 		port {
-			hdlcd0_output: hdlcd0-endpoint {
+			hdlcd0_output: endpoint@0 {
 				remote-endpoint = <&tda998x_0_input>;
 			};
 		};
@@ -192,13 +194,20 @@
 		i2c-sda-hold-time-ns = <500>;
 		clocks = <&soc_smc50mhz>;
 
-		hdmi-transmitter@70 {
+		hdmi_transmitter0: hdmi-transmitter@70 {
 			compatible = "nxp,tda998x";
 			reg = <0x70>;
+			audio-ports = <0x03>, <0x04>;
+			audio-port-names = "i2s", "spdif";
+			#sound-dai-cells = <1>;
 			port {
-				tda998x_0_input: tda998x-0-endpoint {
+				tda998x_0_input: endpoint@0 {
 					remote-endpoint = <&hdlcd0_output>;
 				};
+
+				tda998x_0_output: endpoint@1 {
+					remote-endpoint = <&hdmi0_connector_output>;
+				};
 			};
 		};
 
@@ -206,9 +215,64 @@
 			compatible = "nxp,tda998x";
 			reg = <0x71>;
 			port {
-				tda998x_1_input: tda998x-1-endpoint {
+/*				tda998x_1_input: endpoint@0 {
 					remote-endpoint = <&hdlcd1_output>;
 				};
+*/
+				tda998x_1_output: endpoint@1 {
+					remote-endpoint = <&hdmi1_connector_output>;
+				};
+			};
+		};
+	};
+
+	soc_i2s: i2s@...90000 {
+		compatible = "snps,designware-i2s";
+		reg = <0x0 0x7ff90000 0x0 0x1000>;
+		clocks = <&scpi_clk 5>, <&soc_refclk100mhz>;
+		clock-names = "i2sclk", "apb_pclk";
+		#sound-dai-cells = <0>;
+		dmas = <&dma0 5>;
+		dma-names = "tx";
+	};
+
+	hdmi_audio: hdmi_audio@0 {
+		compatible = "linux,hdmi-audio";
+		#sound-dai-cells = <0>;
+		status = "okay";
+	};
+
+	sound {
+		compatible = "simple-audio-card";
+
+		simple-audio-card,format = "i2s";
+
+		simple-audio-card,cpu {
+			sound-dai = <&soc_i2s>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&hdmi_transmitter0 0>;
+		};
+
+	};
+
+	hdmi0: connector@0 {
+		compatible = "hdmi-connector";
+		type = "a";
+		port {
+			hdmi0_connector_output: endpoint {
+				remote-endpoint = <&tda998x_0_output>;
+			};
+		};
+	};
+
+	hdmi1: connector@1 {
+		compatible = "hdmi-connector";
+		type = "a";
+		port {
+			hdmi1_connector_output: endpoint {
+				remote-endpoint = <&tda998x_1_output>;
 			};
 		};
 	};
-- 
1.8.1.5