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| author | Weilong Chen <chenweilong@huawei.com> | 2022-11-01 11:07:28 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2022-11-02 23:23:52 +0300 |
| commit | e77f7ba726cc0c9b1c62b295d2aac42c3a18ebd1 (patch) | |
| tree | cfaa04b65b77b5ee2a5f19cc60f99bfd662faf56 | |
| parent | 52951ea193ad3b77c433497425a1049520fd6f22 (diff) | |
| download | linux-e77f7ba726cc0c9b1c62b295d2aac42c3a18ebd1.tar.xz | |
dt-bindings: i2c: add entry for hisilicon,ascend910-i2c
Add the new compatible for HiSilicon i2c.
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml | 73 | ||||
| -rw-r--r-- | MAINTAINERS | 1 |
2 files changed, 74 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml new file mode 100644 index 000000000000..7d7a8de7bcd8 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml @@ -0,0 +1,73 @@ +# 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>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 379945f82a64..1d09b36b9b9c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9214,6 +9214,7 @@ M: Yicong Yang <yangyicong@hisilicon.com> L: linux-i2c@vger.kernel.org S: Maintained W: https://www.hisilicon.com +F: Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml F: drivers/i2c/busses/i2c-hisi.c HISILICON LPC BUS DRIVER |