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From: Yaozhong Li <yaozhonguwl@gmail.com>
To: heiko@sntech.de
Cc: linux-rockchip@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	Yaozhong Li <yaozhonguwl@gmail.com>
Subject: [PATCH 2/2] arm64: dts: rockchip: enable HDMI audio on rk3399-firefly
Date: Thu,  3 Sep 2026 16:27:13 +0800	[thread overview]
Message-ID: <20260903082713.192-2-yaozhonguwl@gmail.com> (raw)
In-Reply-To: <20260903082713.192-1-yaozhonguwl@gmail.com>

The Firefly-RK3399 exposes audio over its HDMI 2.0 connector, but
hdmi_sound is left disabled, so the only outputs available are the
analog rt5640 jacks and S/PDIF.

Enable it. This depends on i2s0 no longer being enabled, otherwise
i2s2 cannot get a DMA channel for capture and the card fails to
probe.

Tested on a Firefly-RK3399 board with a 1920x1080 display attached:
the hdmi-sound card is registered and plays at both 44.1 and 48 kHz,
alongside the existing rt5640 and S/PDIF cards.

Signed-off-by: Yaozhong Li <yaozhonguwl@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index fa1b8b8..3d1f84f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -311,6 +311,10 @@ &hdmi {
 	status = "okay";
 };
 
+&hdmi_sound {
+	status = "okay";
+};
+
 &i2c0 {
 	clock-frequency = <400000>;
 	i2c-scl-rising-time-ns = <168>;
-- 
2.55.0.windows.3


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WARNING: multiple messages have this Message-ID (diff)
From: Yaozhong Li <yaozhonguwl@gmail.com>
To: heiko@sntech.de
Cc: linux-rockchip@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	Yaozhong Li <yaozhonguwl@gmail.com>
Subject: [PATCH 2/2] arm64: dts: rockchip: enable HDMI audio on rk3399-firefly
Date: Thu,  3 Sep 2026 16:27:13 +0800	[thread overview]
Message-ID: <20260903082713.192-2-yaozhonguwl@gmail.com> (raw)
In-Reply-To: <20260903082713.192-1-yaozhonguwl@gmail.com>

The Firefly-RK3399 exposes audio over its HDMI 2.0 connector, but
hdmi_sound is left disabled, so the only outputs available are the
analog rt5640 jacks and S/PDIF.

Enable it. This depends on i2s0 no longer being enabled, otherwise
i2s2 cannot get a DMA channel for capture and the card fails to
probe.

Tested on a Firefly-RK3399 board with a 1920x1080 display attached:
the hdmi-sound card is registered and plays at both 44.1 and 48 kHz,
alongside the existing rt5640 and S/PDIF cards.

Signed-off-by: Yaozhong Li <yaozhonguwl@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index fa1b8b8..3d1f84f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -311,6 +311,10 @@ &hdmi {
 	status = "okay";
 };
 
+&hdmi_sound {
+	status = "okay";
+};
+
 &i2c0 {
 	clock-frequency = <400000>;
 	i2c-scl-rising-time-ns = <168>;
-- 
2.55.0.windows.3



  reply	other threads:[~2026-09-03  8:27 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-03  8:27 [PATCH 1/2] arm64: dts: rockchip: drop unused i2s0 from rk3399-firefly Yaozhong Li
2026-09-03  8:27 ` Yaozhong Li
2026-09-03  8:27 ` Yaozhong Li [this message]
2026-09-03  8:27   ` [PATCH 2/2] arm64: dts: rockchip: enable HDMI audio on rk3399-firefly Yaozhong Li

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