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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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ae3ac9ffd5
Add the 5v0 supply that is provided over the display panel cable and used by the LCD. This is required by "simple panels" or we get the following warning from DTBS_CHECK: k3-am654-gp-evm.dtb: display0: 'power-supply' is a required property Signed-off-by: Andrew Davis <afd@ti.com> Link: https://lore.kernel.org/r/20250421214620.3770172-4-afd@ti.com Signed-off-by: Nishanth Menon <nm@ti.com>
84 lines
1.7 KiB
Plaintext
84 lines
1.7 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only OR MIT
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/**
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* OLDI-LCD1EVM Rocktech integrated panel and touch DT overlay for AM654-EVM.
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* Panel Link: https://www.digimax.it/en/tft-lcd/20881-RK101II01D-CT
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* AM654 LCD EVM: https://www.ti.com/tool/TMDSLCD1EVM
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*
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* Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
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*/
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/dts-v1/;
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/plugin/;
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#include <dt-bindings/pwm/pwm.h>
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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&{/} {
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vcc_5v0: lcd-regulator {
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/* Output of LM5140 */
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compatible = "regulator-fixed";
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regulator-name = "vcc_5v0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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regulator-always-on;
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regulator-boot-on;
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vin-supply = <&evm_12v0>;
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};
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display0 {
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compatible = "rocktech,rk101ii01d-ct";
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power-supply = <&vcc_5v0>;
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backlight = <&lcd_bl>;
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enable-gpios = <&pca9555 8 GPIO_ACTIVE_HIGH>;
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port {
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lcd_in0: endpoint {
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remote-endpoint = <&oldi_out0>;
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};
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};
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};
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lcd_bl: backlight {
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compatible = "pwm-backlight";
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pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
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brightness-levels =
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<0 32 64 96 128 160 192 224 255>;
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default-brightness-level = <8>;
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};
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};
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&dss {
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status = "okay";
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};
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&dss_ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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oldi_out0: endpoint {
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remote-endpoint = <&lcd_in0>;
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};
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};
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};
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&main_i2c1 {
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#address-cells = <1>;
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#size-cells = <0>;
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touchscreen@14 {
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compatible = "goodix,gt928";
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reg = <0x14>;
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interrupt-parent = <&pca9554>;
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interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
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touchscreen-size-x = <1280>;
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touchscreen-size-y = <800>;
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reset-gpios = <&pca9555 9 GPIO_ACTIVE_HIGH>;
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irq-gpios = <&pca9554 3 GPIO_ACTIVE_HIGH>;
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};
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};
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