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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/hisilicon,ascend910-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: HiSilicon common I2C controller
maintainers:
- Yicong Yang <yangyicong@hisilicon.com>
description:
The HiSilicon common I2C controller can be used for many different
types of SoC such as Huawei Ascend AI series chips.
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
properties:
compatible:
const: hisilicon,ascend910-i2c
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
clock-frequency:
default: 400000
i2c-sda-falling-time-ns:
default: 343
i2c-scl-falling-time-ns:
default: 203
i2c-sda-hold-time-ns:
default: 830
i2c-scl-rising-time-ns:
default: 365
i2c-digital-filter-width-ns:
default: 0
required:
- compatible
- reg
- interrupts
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
i2c@38b0000 {
compatible = "hisilicon,ascend910-i2c";
reg = <0x38b0000 0x10000>;
interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
i2c-sda-falling-time-ns = <56>;
i2c-scl-falling-time-ns = <56>;
i2c-sda-hold-time-ns = <56>;
i2c-scl-rising-time-ns = <56>;
i2c-digital-filter;
i2c-digital-filter-width-ns = <0x0>;
clocks = <&alg_clk>;
clock-frequency = <400000>;
};
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