From: Vitor Soares <[email protected]> Add a device tree overlay for the Toradex Capacitive Touch Display 10.1" LVDS connected via Verdin AM62 OLDI on carrier boards exposing LVDS interface (e.g., Mallow). The panel is a LogicTechno LT170410-2WHC 10.1" WXGA IPS LCD and the touch input is provided by an Atmel MaxTouch capacitive touch controller.
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 + ...25-verdin-panel-cap-touch-10inch-lvds.dtso | 119 ++++++++++++++++++ 2 files changed, 124 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index b2408f62c139..867c05b675d1 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -33,6 +33,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-ivy.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-mallow.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-yavia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-zinnia.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-panel-cap-touch-10inch-lvds.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev-dsi-to-hdmi.dtb @@ -213,6 +214,9 @@ 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-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds-dtbs := \ + k3-am625-verdin-wifi-mallow.dtb \ + k3-am625-verdin-panel-cap-touch-10inch-lvds.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 \ @@ -315,6 +319,7 @@ dtb- += k3-am625-beagleplay-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-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds.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-panel-cap-touch-10inch-lvds.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso new file mode 100644 index 000000000000..48479e83dcd3 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * Toradex Capacitive Touch Display 10.1" connected via Verdin AM62 OLDI + * on carrier boards with a Toradex standard LVDS display connector + * (e.g., Mallow). + * + * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds + * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/pwm/pwm.h> +#include "k3-pinctrl.h" + +&{/} { + backlight_pwm2: backlight-pwm2 { + 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>; + /* Verdin PWM_2 (SODIMM 16) */ + pwms = <&epwm0 1 6666667 PWM_POLARITY_INVERTED>; + }; + + panel-lvds-native { + compatible = "logictechno,lt170410-2whc"; + backlight = <&backlight_pwm2>; + power-supply = <®_3v3_lvds_native>; + + port { + panel_lvds_native_in: endpoint { + remote-endpoint = <&oldi0_out>; + }; + }; + }; + + reg_3v3_lvds_native: regulator-3v3-lvds-native { + compatible = "regulator-fixed"; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + }; +}; + +&dss { + status = "okay"; +}; + +&dss_ports { + #address-cells = <1>; + #size-cells = <0>; + + /* DSS VP1: internal DPI output to OLDIx */ + port@0 { + reg = <0>; + + dss0_out: endpoint { + remote-endpoint = <&oldi0_in>; + }; + }; +}; + +/* Verdin I2C_2_DSI */ +&main_i2c2 { + #address-cells = <1>; + #size-cells = <0>; + + touch@4a { + compatible = "atmel,maxtouch"; + reg = <0x4a>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2s_2_d_in_gpio>, <&pinctrl_i2s_2_sync_gpio>; + /* Verdin I2S_2_SYNC as GPIO (SODIMM 44) */ + interrupt-parent = <&main_gpio0>; + interrupts = <37 IRQ_TYPE_EDGE_FALLING>; + /* Verdin I2S_2_D_IN as GPIO (SODIMM 48) */ + reset-gpios = <&main_gpio0 33 GPIO_ACTIVE_LOW>; + }; +}; + +&main_pmx0 { + /* Mallow Touch RST */ + pinctrl_i2s_2_d_in_gpio: main-gpio0-33-default-pins { + pinctrl-single,pins = < + AM62X_IOPAD(0x0088, PIN_INPUT, 7) /* (L24) GPMC0_OEn_REn.GPIO0_33 */ /* SODIMM 48 */ + >; + }; + + /* Mallow Touch INT# */ + pinctrl_i2s_2_sync_gpio: main-gpio0-37-default-pins { + pinctrl-single,pins = < + AM62X_IOPAD(0x0098, PIN_INPUT, 7) /* (U23) GPMC0_WAIT0.GPIO0_37 */ /* SODIMM 44 */ + >; + }; +}; + +&oldi0 { + status = "okay"; +}; + +&oldi0_port0 { + oldi0_in: endpoint { + remote-endpoint = <&dss0_out>; + }; +}; + +&oldi0_port1 { + oldi0_out: endpoint { + remote-endpoint = <&panel_lvds_native_in>; + }; +}; -- 2.54.0
