From: Vitor Soares <[email protected]> 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.
Assisted-by: Claude:claude-sonnet-4.6 Signed-off-by: Vitor Soares <[email protected]> --- arch/arm64/boot/dts/ti/Makefile | 4 ++++ .../dts/ti/k3-am625-verdin-dev-nau8822-btl.dtso | 14 ++++++++++++++ 2 files changed, 18 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am625-verdin-dev-nau8822-btl.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 14898f8ab0e2..a1083c0b2502 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -29,6 +29,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-tevi-ov5640.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-rdk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-tqma62xx-mba62xx.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dev-nau8822-btl.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-hdmi.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia-dsi-to-hdmi.dtb @@ -224,6 +225,8 @@ k3-am625-sk-hdmi-audio-dtbs := k3-am625-sk.dtb k3-am62x-sk-hdmi-audio.dtbo k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \ k3-am625-verdin-wifi-dev.dtb \ k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo +k3-am625-verdin-wifi-dev-nau8822-btl-dtbs := k3-am625-verdin-wifi-dev.dtb \ + k3-am625-verdin-dev-nau8822-btl.dtbo k3-am625-verdin-wifi-dev-panel-cap-touch-7inch-dsi-dtbs := \ k3-am625-verdin-wifi-dev.dtb \ k3-am625-verdin-panel-cap-touch-7inch-dsi.dtbo @@ -332,6 +335,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am625-sk-csi2-tevi-ov5640.dtb \ k3-am625-sk-hdmi-audio.dtb \ k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \ + k3-am625-verdin-wifi-dev-nau8822-btl.dtb \ k3-am625-verdin-wifi-dev-panel-cap-touch-7inch-dsi.dtb \ k3-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds.dtb \ k3-am62-lp-sk-hdmi-audio.dtb \ diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-nau8822-btl.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-nau8822-btl.dtso new file mode 100644 index 000000000000..e4b662519a6b --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-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
