Commit e77f7ba7 authored by Weilong Chen's avatar Weilong Chen Committed by Wolfram Sang
Browse files

dt-bindings: i2c: add entry for hisilicon,ascend910-i2c 



Add the new compatible for HiSilicon i2c.

Signed-off-by: default avatarWeilong Chen <chenweilong@huawei.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarYicong Yang <yangyicong@hisilicon.com>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent 52951ea1

Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml

0 → 100644
+73 −0
Original line number Diff line number Diff line 
# 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>;

    };

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -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