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