linux-kernel - [PATCH v3 18/20] ARM: tegra: Add HDMI audio graph to Tegra20 device-tree

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Date:   Thu,  2 Dec 2021 19:23:39 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Liam Girdwood <lgirdwood@...il.com>,
        Agneli <poczt@...tonmail.ch>, Rob Herring <robh+dt@...nel.org>
Cc:     linux-tegra@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH v3 18/20] ARM: tegra: Add HDMI audio graph to Tegra20 device-tree

Add HDMI audio graph to Tegra20 device-tree to enable HDMI audio on
Tegra20 devices.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/boot/dts/tegra20.dtsi | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 72cbe32d0c1d..dde228bcbbff 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -186,7 +186,7 @@ rgb {
 			};
 		};
 
-		hdmi@...80000 {
+		tegra_hdmi: hdmi@...80000 {
 			compatible = "nvidia,tegra20-hdmi";
 			reg = <0x54280000 0x00040000>;
 			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
@@ -1063,4 +1063,24 @@ pmu {
 		interrupt-affinity = <&{/cpus/cpu@0}>,
 				     <&{/cpus/cpu@1}>;
 	};
+
+	sound-hdmi {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "NVIDIA Tegra20 HDMI";
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		simple-audio-card,dai-link@0 {
+			reg = <0>;
+
+			cpu {
+				sound-dai = <&tegra_spdif>;
+			};
+
+			codec {
+				sound-dai = <&tegra_hdmi>;
+			};
+		};
+	};
 };
-- 
2.33.1