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Tue, 02 Jun 2026 04:51:44 -0700 (PDT) From: Vitor Soares To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Vitor Soares , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/7] arm64: dts: ti: k3-am69-aquila: Add Toradex Capacitive Touch Display 7" DSI with adapter Date: Tue, 2 Jun 2026 12:51:27 +0100 Message-ID: <20260602115123.1324474-13-ivitro@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260602115123.1324474-9-ivitro@gmail.com> References: <20260602115123.1324474-9-ivitro@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Vitor Soares Add a device tree overlay for the Toradex Capacitive Touch Display 7" DSI used with the Toradex DSI Display Adapter on the Aquila Development Board. On this board, DSI_1 is exposed on connector J44 through a Samtec LSS-130 connector, and the adapter converts it to an FFC/FPC connector. The display includes an internal Texas Instruments SN65DSI83 DSI-to-LVDS bridge driving a Riverdi RVT70HSLNWCA0 7" WSVGA IPS TFT LCD panel. Touch input is provided by an Ilitek ILI2132 capacitive touch controller. Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-dsi Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-display-adapter Signed-off-by: Vitor Soares --- arch/arm64/boot/dts/ti/Makefile | 5 + ...ila-adapter-panel-cap-touch-7inch-dsi.dtso | 155 ++++++++++++++++++ 2 files changed, 160 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 966cec4c5b6e..c145cc4ca7fc 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -193,6 +193,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm-csi2-quad-tevi-ov5640.dtbo k3-am69-aquila-dev-dsi-to-hdmi-dtbs := k3-am69-aquila-dev.dtb \ k3-am69-aquila-dsi-to-hdmi.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-adapter-panel-cap-touch-10inch-dsi.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtbo dtb-$(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 @@ -315,6 +316,9 @@ k3-am68-sk-base-board-pcie1-ep-dtbs := k3-am68-sk-base-board.dtb \ k3-am69-aquila-dev-adapter-panel-cap-touch-10inch-dsi-dtbs := \ k3-am69-aquila-dev.dtb \ k3-am69-aquila-adapter-panel-cap-touch-10inch-dsi.dtbo +k3-am69-aquila-dev-adapter-panel-cap-touch-7inch-dsi-dtbs := \ + k3-am69-aquila-dev.dtb \ + k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtbo k3-am69-aquila-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \ k3-am69-aquila-dev.dtb \ k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtbo @@ -402,6 +406,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am68-sk-base-board-csi2-dual-imx219.dtb \ k3-am68-sk-base-board-pcie1-ep.dtb \ k3-am69-aquila-dev-adapter-panel-cap-touch-10inch-dsi.dtb \ + k3-am69-aquila-dev-adapter-panel-cap-touch-7inch-dsi.dtb \ k3-am69-aquila-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \ k3-am69-sk-csi2-dual-imx219.dtb \ k3-am69-sk-pcie0-ep.dtb \ diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso b/arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso new file mode 100644 index 000000000000..36d3746c8bd0 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso @@ -0,0 +1,155 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * Toradex Capacitive Touch Display 7" on Aquila DSI_1. + * Used on Development Board (J44), DSI_1 is exposed via a Samtec LSS-130 + * connector, and requires the Toradex DSI Display Adapter to convert to + * FFC/FPC connector. + * + * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-dsi + * https://www.toradex.com/accessories/capacitive-touch-display-7-inch-dsi + * https://developer.toradex.com/hardware/accessories/add-ons/dsi-display-adapter + * https://www.toradex.com/accessories/verdin-dsi-display-adapter + */ + +/dts-v1/; +/plugin/; + +#include +#include + +&{/} { + backlight_pwm3: backlight-pwm3 { + compatible = "pwm-backlight"; + brightness-levels = <0 45 63 88 119 158 203 255>; + default-brightness-level = <4>; + /* Aquila PWM_3_DSI (AQUILA B46) */ + pwms = <&main_ehrpwm5 0 6666667 0>; + }; + + panel-lvds-bridge { + compatible = "riverdi,rvt70hslnwca0", "panel-lvds"; + backlight = <&backlight_pwm3>; + data-mapping = "vesa-24"; + height-mm = <86>; + width-mm = <154>; + + panel-timing { + clock-frequency = <51200000>; + de-active = <1>; + hactive = <1024>; + hback-porch = <100 100 100>; + hfront-porch = <16 160 216>; + hsync-active = <0>; + hsync-len = <1 60 140>; + pixelclk-active = <1>; + vactive = <600>; + vback-porch = <13 13 13>; + vfront-porch = <1 12 127>; + vsync-active = <0>; + vsync-len = <1 10 20>; + }; + + port { + panel_lvds_bridge_in: endpoint { + remote-endpoint = <&dsi_lvds_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_lvds_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>; + }; + }; +}; + +/* I2C on DSI Connector Pin #52 and #54 */ +&i2c_dsi_1 { + #address-cells = <1>; + #size-cells = <0>; + + bridge@2c { + compatible = "ti,sn65dsi83"; + reg = <0x2c>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_gpio_20_dsi_1>; + /* Aquila GPIO_20_DSI_1 (AQUILA B45) */ + enable-gpios = <&main_gpio0 18 GPIO_ACTIVE_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + dsi_lvds_bridge_in: endpoint { + remote-endpoint = <&dsi0_out>; + data-lanes = <1 2 3 4>; + }; + }; + + port@2 { + reg = <2>; + + dsi_lvds_bridge_out: endpoint { + remote-endpoint = <&panel_lvds_bridge_in>; + }; + }; + }; + }; + + touchscreen@41 { + compatible = "ilitek,ili2132"; + reg = <0x41>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_gpio_17_dsi_1>, <&pinctrl_gpio_18_dsi_1>; + /* Aquila GPIO_17_DSI_1 (AQUILA B42) */ + interrupt-parent = <&main_gpio0>; + /* + * Data-ready pulse is ~200 us; either edge can be used, + * use the rising edge because the falling edge is noisy. + */ + interrupts = <12 IRQ_TYPE_EDGE_RISING>; + /* Aquila GPIO_18_DSI_1 (AQUILA B43) */ + reset-gpios = <&main_gpio0 31 GPIO_ACTIVE_LOW>; + }; +}; -- 2.54.0