From: Jai Luthra <j-luthra@xxxxxx> Enable audio output over HDMI instead of the 3.5mm jack. A FET switch (U65) on the EVM muxes serial audio lines coming from McASP between the codec (tlv320aic3106) and the HDMI bridge (sii9022). By default it uses the codec, but it can be toggled to use the HDMI bridge by shorting a (J24) header on the board. Signed-off-by: Jai Luthra <j-luthra@xxxxxx> [a-bhatia1: Cosmetic changes] Signed-off-by: Aradhya Bhatia <a-bhatia1@xxxxxx> --- arch/arm64/boot/dts/ti/Makefile | 3 ++ .../boot/dts/ti/k3-am62x-sk-hdmi-audio.dtso | 40 +++++++++++++++++++ 2 files changed, 43 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am62x-sk-hdmi-audio.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 437a3d7e8e3a..e3eadf69d43b 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -19,6 +19,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-yavia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo # Boards with AM62Ax SoC dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb @@ -68,6 +69,8 @@ dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb # Enable support for device-tree overlays +DTC_FLAGS_k3-am625-sk += -@ +DTC_FLAGS_k3-am62-lp-sk += -@ DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@ DTC_FLAGS_k3-j721e-common-proc-board += -@ DTC_FLAGS_k3-j721s2-common-proc-board += -@ diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-hdmi-audio.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-hdmi-audio.dtso new file mode 100644 index 000000000000..43a0ddc123e5 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-hdmi-audio.dtso @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * Audio playback via HDMI for AM625-SK and AM62-LP SK. + * + * Links: + * AM625 SK: https://www.ti.com/tool/SK-AM62 + * AM62-LP SK: https://www.ti.com/tool/SK-AM62-LP + * + * Copyright (C) 2023 Texas Instruments Incorporated - http://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +&{/} { + hdmi_audio: sound-sii9022 { + compatible = "simple-audio-card"; + simple-audio-card,name = "AM62x-Sil9022-HDMI"; + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&hdmi_dailink_master>; + simple-audio-card,frame-master = <&hdmi_dailink_master>; + + hdmi_dailink_master: simple-audio-card,cpu { + sound-dai = <&mcasp1>; + system-clock-direction-out; + }; + + simple-audio-card,codec { + sound-dai = <&sii9022>; + }; + }; +}; + +&mcasp1 { + auxclk-fs-ratio = <2177>; +}; + +&codec_audio { + status = "disabled"; +}; -- 2.40.1
