From: Vitor Soares <[email protected]> Add a device tree overlay for the Toradex DSI to LVDS Adapter with the Toradex Capacitive Touch Display 10.1" LVDS. The adapter connects to the Verdin DSI_1 interface. It is based on the Texas Instruments SN65DSI84 DSI-to-LVDS bridge and drives a LogicTechno LT170410-2WHC 10.1" WXGA LVDS panel. Touch input is provided by an Atmel MaxTouch capacitive touch controller.
Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-lvds-adapter Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds Assisted-by: Claude:claude-sonnet-4.6 Signed-off-by: Vitor Soares <[email protected]> --- Changes in v2: - Use panel-simple compatible form arch/arm64/boot/dts/ti/Makefile | 5 + ...in-dsi-to-lvds-panel-cap-touch-10inch.dtso | 123 ++++++++++++++++++ 2 files changed, 128 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 21db60cd19de..b2408f62c139 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -24,6 +24,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-rdk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-tqma62xx-mba62xx.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-hdmi.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dev-dsi-to-hdmi.dtb @@ -209,6 +210,9 @@ k3-am625-sk-csi2-ov5640-dtbs := k3-am625-sk.dtb \ k3-am625-sk-csi2-tevi-ov5640-dtbs := k3-am625-sk.dtb \ k3-am62x-sk-csi2-tevi-ov5640.dtbo k3-am625-sk-hdmi-audio-dtbs := k3-am625-sk.dtb k3-am62x-sk-hdmi-audio.dtbo +k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \ + k3-am625-verdin-wifi-dev.dtb \ + k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo k3-am62-lp-sk-hdmi-audio-dtbs := k3-am62-lp-sk.dtb k3-am62x-sk-hdmi-audio.dtbo k3-am62-lp-sk-nand-dtbs := k3-am62-lp-sk.dtb k3-am62-lp-sk-nand.dtbo k3-am62a7-phyboard-lyra-disable-eth-phy-dtbs := k3-am62a7-phyboard-lyra-rdk.dtb \ @@ -310,6 +314,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am625-sk-csi2-ov5640.dtb \ k3-am625-sk-csi2-tevi-ov5640.dtb \ k3-am625-sk-hdmi-audio.dtb \ + k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \ k3-am62-lp-sk-hdmi-audio.dtb \ k3-am62-lp-sk-nand.dtb \ k3-am62a7-phyboard-lyra-disable-eth-phy.dtb \ diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso new file mode 100644 index 000000000000..0e873f2ccf65 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * Toradex DSI to LVDS Adapter on Verdin DSI_1 with Capacitive Touch Display 10.1" + * Used on Dahlia (X17) and Development Board (X48) that expose DSI_1 via an + * Samtec LSS-130 connector. + * + * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds + * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds + * https://developer.toradex.com/hardware/accessories/add-ons/dsi-lvds-adapter + * https://www.toradex.com/accessories/verdin-dsi-to-lvds-adapter + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/pwm/pwm.h> + +&{/} { + backlight_pwm3: backlight-pwm3 { + compatible = "pwm-backlight"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2s_2_d_out_gpio>; + brightness-levels = <0 45 63 88 119 158 203 255>; + default-brightness-level = <4>; + /* Verdin I2S_2_D_OUT as GPIO (SODIMM 46) */ + enable-gpios = <&main_gpio0 34 GPIO_ACTIVE_HIGH>; + power-supply = <®_3v3>; + /* Verdin PWM_3_DSI (SODIMM 19) */ + pwms = <&epwm1 0 6666667 PWM_POLARITY_INVERTED>; + }; + + panel-lvds-bridge { + compatible = "logictechno,lt170410-2whc"; + backlight = <&backlight_pwm3>; + power-supply = <®_3v3_lvds_bridge>; + + port { + panel_lvds_bridge_in: endpoint { + remote-endpoint = <&dsi_lvds_bridge_out>; + }; + }; + }; + + reg_3v3_lvds_bridge: regulator-3v3-lvds-bridge { + compatible = "regulator-fixed"; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + }; +}; + +&dsi_bridge { + status = "okay"; +}; + +&dsi_bridge_ports { + #address-cells = <1>; + #size-cells = <0>; + + port@1 { + reg = <1>; + + dsi_bridge_out: endpoint { + remote-endpoint = <&dsi_lvds_bridge_in>; + }; + }; +}; + +&dss { + status = "okay"; +}; + +/* Verdin I2C_1 */ +&main_i2c1 { + #address-cells = <1>; + #size-cells = <0>; + + bridge@2c { + compatible = "ti,sn65dsi84"; + reg = <0x2c>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dsi1_bkl_en>; + /* Verdin GPIO_10_DSI (SODIMM 21) - DSI_1_BKL_EN */ + enable-gpios = <&main_gpio0 30 GPIO_ACTIVE_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + dsi_lvds_bridge_in: endpoint { + remote-endpoint = <&dsi_bridge_out>; + data-lanes = <1 2 3 4>; + }; + }; + + port@2 { + reg = <2>; + + dsi_lvds_bridge_out: endpoint { + remote-endpoint = <&panel_lvds_bridge_in>; + }; + }; + }; + }; + + touch@4a { + compatible = "atmel,maxtouch"; + reg = <0x4a>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dsi1_int>, <&pinctrl_i2s_2_bclk_gpio>; + /* Verdin GPIO_9_DSI (SODIMM 17) - TOUCH_INT# */ + interrupt-parent = <&main_gpio1>; + interrupts = <49 IRQ_TYPE_EDGE_FALLING>; + /* Verdin I2S_2_BCLK (SODIMM 42) - TOUCH_RESET# */ + reset-gpios = <&main_gpio0 35 GPIO_ACTIVE_LOW>; + }; +}; -- 2.54.0
