117 lines
2.3 KiB
YAML
117 lines
2.3 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2019 BayLibre, SAS
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/amlogic,meson-gx-spicc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Amlogic Meson SPI Communication Controller
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maintainers:
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- Neil Armstrong <neil.armstrong@linaro.org>
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description: |
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The Meson SPICC is a generic SPI controller for general purpose Full-Duplex
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communications with dedicated 16 words RX/TX PIO FIFOs.
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properties:
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compatible:
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enum:
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- amlogic,meson-gx-spicc # SPICC controller on Amlogic GX and compatible SoCs
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- amlogic,meson-axg-spicc # SPICC controller on Amlogic AXG and compatible SoCs
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- amlogic,meson-g12a-spicc # SPICC controller on Amlogic G12A and compatible SoCs
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interrupts:
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maxItems: 1
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reg:
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maxItems: 1
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resets:
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maxItems: 1
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clocks:
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minItems: 1
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items:
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- description: controller register bus clock
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- description: baud rate generator and delay control clock
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clock-names:
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minItems: 1
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maxItems: 2
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allOf:
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- $ref: spi-controller.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- amlogic,meson-g12a-spicc
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then:
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properties:
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clocks:
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minItems: 2
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clock-names:
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items:
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- const: core
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- const: pclk
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else:
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properties:
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: core
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- if:
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properties:
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compatible:
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contains:
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enum:
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- amlogic,meson-gx-spicc
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then:
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properties:
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pinctrl-0: true
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pinctrl-1: true
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pinctrl-2: true
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pinctrl-names:
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minItems: 1
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items:
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- const: default
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- const: idle-high
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- const: idle-low
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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unevaluatedProperties: false
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examples:
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- |
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spi@c1108d80 {
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compatible = "amlogic,meson-gx-spicc";
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reg = <0xc1108d80 0x80>;
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interrupts = <112>;
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clocks = <&clk81>;
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clock-names = "core";
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#address-cells = <1>;
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#size-cells = <0>;
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display@0 {
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compatible = "lg,lg4573";
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spi-max-frequency = <1000000>;
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reg = <0>;
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};
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};
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