| Message ID | 20230809084559.17322-5-a-bhatia1@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: ti: k3-am62: Add display support | expand |
On Wed, Aug 9, 2023 at 3:46 AM Aradhya Bhatia <a-bhatia1@ti.com> wrote: > > From: Jai Luthra <j-luthra@ti.com> > > 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@ti.com> > [a-bhatia1: Cosmetic changes] > Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com> > --- > 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-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo Overlays need to be applied to something. That's done like this: foo-dtbs := base.dtb k3-am62x-sk-hdmi-audio.dtbo dtb-y += foo.dtb Please send a fix for this. Rob
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 437a3d7e8e3a..e3eadf69d43b 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -19,6 +19,7 @@ dtb-$(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"; +};