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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/samsung,ld9040.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
maintainers:
- Andrzej Hajda <a.hajda@samsung.com>
allOf:
- $ref: panel-common.yaml#
- $ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
compatible:
const: samsung,ld9040
display-timings: true
port: true
reg: true
reset-gpios: true
vdd3-supply:
description: core voltage supply
vci-supply:
description: voltage supply for analog circuits
power-on-delay:
$ref: /schemas/types.yaml#/definitions/uint32
description: delay after turning regulators on [ms]
reset-delay:
$ref: /schemas/types.yaml#/definitions/uint32
description: delay after reset sequence [ms]
panel-width-mm:
description: physical panel width [mm]
panel-height-mm:
description: physical panel height [mm]
required:
- compatible
- reg
- vdd3-supply
- vci-supply
- reset-gpios
- display-timings
unevaluatedProperties: false
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
lcd@0 {
compatible = "samsung,ld9040";
reg = <0>;
vdd3-supply = <&ldo7_reg>;
vci-supply = <&ldo17_reg>;
reset-gpios = <&gpy4 5 0>;
spi-max-frequency = <1200000>;
spi-cpol;
spi-cpha;
power-on-delay = <10>;
reset-delay = <10>;
panel-width-mm = <90>;
panel-height-mm = <154>;
display-timings {
timing {
clock-frequency = <23492370>;
hactive = <480>;
vactive = <800>;
hback-porch = <16>;
hfront-porch = <16>;
vback-porch = <2>;
vfront-porch = <28>;
hsync-len = <2>;
vsync-len = <1>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
};
};
port {
lcd_ep: endpoint {
remote-endpoint = <&fimd_dpi_ep>;
};
};
};
};
...
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