diff options
| author | Vitor Soares <vitor.soares@toradex.com> | 2026-06-02 12:51:24 +0100 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2026-07-16 14:25:56 +0530 |
| commit | 9199488ead533541b8720d340c3887f33902e650 (patch) | |
| tree | de64c6bcc57865b73e215c44704d5811a9ed522e | |
| parent | fbc32d0ea1d60de471eae5608cf9bc0671d16f0f (diff) | |
| download | linux-9199488ead533541b8720d340c3887f33902e650.tar.gz linux-9199488ead533541b8720d340c3887f33902e650.zip | |
arm64: dts: ti: k3-am69-aquila: Add Toradex DSI to HDMI Adapter
Add a device tree overlay for the Toradex DSI to HDMI Adapter on the
Aquila AM69 DSI_1 interface. Used on Aquila Development Board (J44),
where DSI_1 is exposed via a Samtec LSS-130 connector.
The adapter is based on the Lontium LT8912B DSI-to-HDMI bridge.
Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-hdmi-adapter
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://patch.msgid.link/20260602115123.1324474-10-ivitro@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-hdmi.dtso | 115 |
2 files changed, 119 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 913f51ebee38..fccd96354464 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -191,8 +191,12 @@ dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm-csi2-quad-rpi-cam-imx219.dtbo dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm-csi2-quad-tevi-ov5640.dtbo # Boards with J784s4 SoC +k3-am69-aquila-dev-dsi-to-hdmi-dtbs := k3-am69-aquila-dev.dtb \ + k3-am69-aquila-dsi-to-hdmi.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-clover.dtb dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev-dsi-to-hdmi.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dsi-to-hdmi.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am69-sk-pcie0-ep.dtbo dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-hdmi.dtso b/arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-hdmi.dtso new file mode 100644 index 000000000000..d8e4dd69599e --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-hdmi.dtso @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * Toradex DSI to HDMI Adapter on Aquila AM69 DSI_1. + * Used on Development Board (J44), DSI_1 is exposed via a Samtec LSS-130 connector. + * + * https://developer.toradex.com/hardware/accessories/add-ons/dsi-hdmi-adapter + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> + +&{/} { + hdmi-connector { + compatible = "hdmi-connector"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm3_dsi_gpio>; + ddc-i2c-bus = <&i2c_dsi_1>; + /* Aquila PWM_3_DSI (AQUILA B46) */ + hpd-gpios = <&main_gpio0 33 GPIO_ACTIVE_HIGH>; + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&dsi_hdmi_bridge_out>; + }; + }; + }; +}; + +&dphy_tx0 { + status = "okay"; +}; + +&dsi0 { + status = "okay"; +}; + +&dsi0_ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + dsi0_out: endpoint { + remote-endpoint = <&dsi_hdmi_bridge_in>; + }; + }; + + port@1 { + reg = <1>; + + dsi0_in: endpoint { + remote-endpoint = <&dpi2_out>; + }; + }; +}; + +&dss_ports { + #address-cells = <1>; + #size-cells = <0>; + + port@2 { + reg = <2>; + + dpi2_out: endpoint { + remote-endpoint = <&dsi0_in>; + }; + }; +}; + +/* Aquila PWM_3_DSI (AQUILA B46) repurposed as HDMI HPD GPIO */ +&main_ehrpwm5 { + status = "disabled"; +}; + +&i2c_dsi_0 { + #address-cells = <1>; + #size-cells = <0>; + + hdmi@48 { + compatible = "lontium,lt8912b"; + reg = <0x48>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_gpio_20_dsi_1>; + /* Aquila GPIO_20_DSI_1 (AQUILA B45) */ + reset-gpios = <&main_gpio0 18 GPIO_ACTIVE_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + dsi_hdmi_bridge_in: endpoint { + remote-endpoint = <&dsi0_out>; + data-lanes = <1 2 3 4>; + }; + }; + + port@1 { + reg = <1>; + + dsi_hdmi_bridge_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; +}; |