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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/arm,hdlcd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Arm HDLCD display controller
maintainers:
- Liviu Dudau <Liviu.Dudau@arm.com>
- Andre Przywara <andre.przywara@arm.com>
description:
The Arm HDLCD is a display controller found on several development platforms
produced by ARM Ltd and in more modern of its Fast Models. The HDLCD is an
RGB streamer that reads the data from a framebuffer and sends it to a single
digital encoder (DVI or HDMI).
properties:
compatible:
const: arm,hdlcd
reg:
maxItems: 1
interrupts:
maxItems: 1
clock-names:
const: pxlclk
clocks:
maxItems: 1
description: The input reference for the pixel clock.
memory-region:
maxItems: 1
description:
Phandle to a node describing memory to be used for the framebuffer.
If not present, the framebuffer may be located anywhere in memory.
iommus:
maxItems: 1
port:
$ref: /schemas/graph.yaml#/properties/port
unevaluatedProperties: false
description:
Output endpoint of the controller, connecting the LCD panel signals.
additionalProperties: false
required:
- compatible
- reg
- interrupts
- clocks
- port
examples:
- |
hdlcd@2b000000 {
compatible = "arm,hdlcd";
reg = <0x2b000000 0x1000>;
interrupts = <0 85 4>;
clocks = <&oscclk5>;
clock-names = "pxlclk";
port {
hdlcd_output: endpoint {
remote-endpoint = <&hdmi_enc_input>;
};
};
};
/* HDMI encoder on I2C bus */
i2c {
#address-cells = <1>;
#size-cells = <0>;
hdmi-transmitter@70 {
compatible = "nxp,tda998x";
reg = <0x70>;
port {
hdmi_enc_input: endpoint {
remote-endpoint = <&hdlcd_output>;
};
};
};
};
...
|
