Add HDMI support for AM437x GP EVM. The HDMI uses SiI9022 HDMI encoder, and is mutually exclusive with the LCD. The choice between LCD and HDMI is made by booting either with am437x-gp-evm.dtb or am437x-gp-evm-hdmi.dtb. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx> --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/am437x-gp-evm-hdmi.dts | 112 +++++++++++++++++++++++ 2 files changed, 113 insertions(+) create mode 100644 arch/arm/boot/dts/am437x-gp-evm-hdmi.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index b21b3a64641a..612149069180 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -779,6 +779,7 @@ dtb-$(CONFIG_SOC_AM43XX) += \ am43x-epos-evm.dtb \ am437x-cm-t43.dtb \ am437x-gp-evm.dtb \ + am437x-gp-evm-hdmi.dtb \ am437x-idk-evm.dtb \ am437x-sbc-t43.dtb \ am437x-sk-evm.dtb diff --git a/arch/arm/boot/dts/am437x-gp-evm-hdmi.dts b/arch/arm/boot/dts/am437x-gp-evm-hdmi.dts new file mode 100644 index 000000000000..580a1e3e0dcd --- /dev/null +++ b/arch/arm/boot/dts/am437x-gp-evm-hdmi.dts @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ + */ + +/* AM437x GP EVM with HDMI output */ + +#include "am437x-gp-evm.dts" + +/delete-node/ &lcd0; + +/ { + aliases { + display0 = &hdmi; + }; + + hdmi: connector { + compatible = "hdmi-connector"; + label = "hdmi"; + + type = "b"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&sii9022_out>; + }; + }; + }; + + sound@1 { + compatible = "simple-audio-card"; + simple-audio-card,name = "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-frequency = <24000000>; + system-clock-direction-out; + }; + + simple-audio-card,codec { + sound-dai = <&sii9022>; + }; + }; + + sii9022_mclk: sii9022_mclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <12000000>; + }; +}; + +&lcd_bl { + status = "disabled"; +}; + +&sound0 { + status = "disabled"; +}; + +&tlv320aic3106 { + status = "disabled"; +}; + +&i2c1 { + sii9022: sii9022@3b { + #sound-dai-cells = <0>; + compatible = "sil,sii9022"; + reg = <0x3b>; + + interrupt-parent = <&gpio3>; + interrupts = <24 IRQ_TYPE_LEVEL_LOW>; + + sil,i2s-data-lanes = < 0 >; + clocks = <&sii9022_mclk>; + clock-names = "mclk"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + sii9022_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + + port@1 { + reg = <1>; + + sii9022_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; +}; + +&dpi_out { + remote-endpoint = <&sii9022_in>; + data-lines = <24>; +}; + +/* Override SelLCDorHDMI from am437x-gp-evm.dts to select HDMI */ +&gpio5 { + p8 { + output-low; + }; +}; -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
