linux-kernel - [PATCH v3 19/20] ARM: tegra: acer-a500: Enable S/PDIF and HDMI audio

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Date:   Thu,  2 Dec 2021 19:23:40 +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 19/20] ARM: tegra: acer-a500: Enable S/PDIF and HDMI audio

Enable S/PDIF controller to enable HDMI audio support on Acer A500.
Use nvidia,fixed-parent-rate property that prevents audio rate conflict
between S/PDIF and I2S.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/boot/dts/tegra20-acer-a500-picasso.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
index db388ddd062f..f47b946627c3 100644
--- a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
+++ b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
@@ -376,8 +376,16 @@ pta {
 		};
 	};
 
+	tegra_spdif: spdif@...02400 {
+		status = "okay";
+
+		nvidia,fixed-parent-rate;
+	};
+
 	tegra_i2s1: i2s@...02800 {
 		status = "okay";
+
+		nvidia,fixed-parent-rate;
 	};
 
 	uartb: serial@...06040 {
-- 
2.33.1