linux-kernel - [PATCH v1 1/4] ARM: tegra: asus-tf101: Enable S/PDIF and HDMI audio

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Date:   Tue,  8 Feb 2022 00:28:23 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Svyatoslav Ryhel <clamor95@...il.com>,
        David Heidelberg <david@...t.cz>,
        Robert Eckelmann <longnoserob@...il.com>,
        Agneli <poczt@...tonmail.ch>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/4] ARM: tegra: asus-tf101: Enable S/PDIF and HDMI audio

Enable S/PDIF controller to enable HDMI audio support on ASUS TF101.
Use nvidia,fixed-parent-rate property that prevents audio rate conflict
between S/PDIF and I2S.

Tested-by: Robert Eckelmann <longnoserob@...il.com>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/boot/dts/tegra20-asus-tf101.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-asus-tf101.dts b/arch/arm/boot/dts/tegra20-asus-tf101.dts
index 020172ee7340..68b0fdb89aa6 100644
--- a/arch/arm/boot/dts/tegra20-asus-tf101.dts
+++ b/arch/arm/boot/dts/tegra20-asus-tf101.dts
@@ -436,8 +436,16 @@ pta {
 		};
 	};
 
+	spdif@...02400 {
+		status = "okay";
+
+		nvidia,fixed-parent-rate;
+	};
+
 	i2s@...02800 {
 		status = "okay";
+
+		nvidia,fixed-parent-rate;
 	};
 
 	serial@...06040 {
-- 
2.34.1