From: Vitor Soares <ivitro@gmail•com>
To: Nishanth Menon <nm@ti•com>, Vignesh Raghavendra <vigneshr@ti•com>,
Tero Kristo <kristo@kernel•org>, Rob Herring <robh@kernel•org>,
Krzysztof Kozlowski <krzk+dt@kernel•org>,
Conor Dooley <conor+dt@kernel•org>
Cc: Vitor Soares <vitor.soares@toradex•com>,
linux-arm-kernel@lists•infradead.org, devicetree@vger•kernel.org,
linux-kernel@vger•kernel.org
Subject: [PATCH 1/3] arm64: dts: ti: k3-am62p-verdin: Add NAU8822 Bridge Tied Load
Date: Tue, 2 Jun 2026 15:13:11 +0100 [thread overview]
Message-ID: <20260602141311.1366818-6-ivitro@gmail.com> (raw)
In-Reply-To: <20260602141311.1366818-5-ivitro@gmail.com>
From: Vitor Soares <vitor.soares@toradex•com>
Add a device tree overlay enabling Bridge Tied Load (BTL) mode on the
Nuvoton NAU8822 audio codec present on the Verdin Development Board.
In BTL mode, the two loudspeaker outputs are bridged to deliver higher
output power on the X28 speaker connector.
Signed-off-by: Vitor Soares <vitor.soares@toradex•com>
---
arch/arm64/boot/dts/ti/Makefile | 4 ++++
.../dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso | 14 ++++++++++++++
2 files changed, 18 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 371f9a043fe5..f2db3c878993 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -78,6 +78,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62l3-evm.dtb
# Boards with AM62Px SoC
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-var-som-symphony.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-dev-nau8822-btl.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-dahlia.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-dev.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-ivy.dtb
@@ -274,6 +275,8 @@ k3-am62p5-sk-csi2-ov5640-dtbs := k3-am62p5-sk.dtb \
k3-am62x-sk-csi2-ov5640.dtbo
k3-am62p5-sk-csi2-tevi-ov5640-dtbs := k3-am62p5-sk.dtb \
k3-am62x-sk-csi2-tevi-ov5640.dtbo
+k3-am62p5-verdin-wifi-dev-nau8822-btl-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
+ k3-am62p5-verdin-dev-nau8822-btl.dtbo
k3-am642-evm-icssg0-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg0.dtbo
k3-am642-evm-icssg1-dualemac-dtbs := \
@@ -372,6 +375,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
k3-am62p5-sk-csi2-imx219.dtb \
k3-am62p5-sk-csi2-ov5640.dtb \
k3-am62p5-sk-csi2-tevi-ov5640.dtb \
+ k3-am62p5-verdin-wifi-dev-nau8822-btl.dtb \
k3-am642-evm-icssg0.dtb \
k3-am642-evm-icssg1-dualemac.dtb \
k3-am642-evm-icssg1-dualemac-mii.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso
new file mode 100644
index 000000000000..e4b662519a6b
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Enable Bridge Tied Load (BTL) speaker mode on the Verdin Development Board,
+ * combining the two loudspeaker outputs for higher output power.
+ */
+
+/dts-v1/;
+/plugin/;
+
+&nau8822_1a {
+ nuvoton,spk-btl;
+};
--
2.54.0
next prev parent reply other threads:[~2026-06-02 14:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-02 14:13 [PATCH 0/3] arm64: dts: ti: k3-am62p-verdin: Add device tree overlays Vitor Soares
2026-06-02 14:13 ` Vitor Soares [this message]
2026-06-02 14:13 ` [PATCH 2/3] arm64: dts: ti: k3-am62p-verdin: Reserve UART_4 for Cortex-R5F Vitor Soares
2026-06-02 14:13 ` [PATCH 3/3] arm64: dts: ti: k3-am62p-verdin: Add Toradex OV5640 CSI Cameras Vitor Soares
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