linux-kernel - [PATCH 1/2] arc: axs10x: Add DT bindings for I2S audio playback

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Message-Id: <7ed6deaf1ae6d5819364c793835aa30316077a7e.1487787376.git.joabreu@synopsys.com>
Date:   Wed, 22 Feb 2017 18:19:34 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     linux-snps-arc@...ts.infradead.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        Rob Herring <robh+dt@...nel.org>,
        Vineet Gupta <Vineet.Gupta1@...opsys.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] arc: axs10x: Add DT bindings for I2S audio playback

This patch adds the necessary DT bindings to get HDMI audio
output in ARC AXS10x SDP. The bindings for I2S controller were
added as well as the bindings for simple audio card.

Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: Carlos Palminha <palminha@...opsys.com>
Cc: Alexey Brodkin <abrodkin@...opsys.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Vineet Gupta <vgupta@...opsys.com>
Cc: devicetree@...r.kernel.org
Cc: linux-snps-arc@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
 arch/arc/boot/dts/axs10x_mb.dtsi | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index d6c1bbc..9d882b1 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -149,12 +149,13 @@
 			interrupts = <14>;
 		};
 
-		i2c@...e000 {
-			compatible = "snps,designware-i2c";
+		i2s: i2s@...00 {
+			compatible = "snps,designware-i2s";
 			reg = <0x1e000 0x100>;
-			clock-frequency = <400000>;
-			clocks = <&i2cclk>;
+			clocks = <&i2sclk 0>;
+			clock-names = "i2sclk";
 			interrupts = <15>;
+			#sound-dai-cells = <0>;
 		};
 
 		i2c@...f000 {
@@ -174,6 +175,7 @@
 				adi,input-colorspace = "rgb";
 				adi,input-clock = "1x";
 				adi,clock-delay = <0x03>;
+				#sound-dai-cells = <0>;
 
 				ports {
 					#address-cells = <1>;
@@ -295,5 +297,17 @@
 				};
 			};
 		};
+
+		sound_playback {
+			compatible = "simple-audio-card";
+			simple-audio-card,name = "AXS10x HDMI Audio";
+			simple-audio-card,format = "i2s";
+			simple-audio-card,cpu {
+				sound-dai = <&i2s>;
+			};
+			simple-audio-card,codec {
+				sound-dai = <&adv7511>;
+			};
+		};
 	};
 };
-- 
1.9.1