Add the new compatible for HiSilicon common i2c. Signed-off-by: Weilong Chen <chenweilong@xxxxxxxxxx> --- Change since v4: - Add description for SoC specific compatibles. - Use the clock binding. - Fix decimal, space, case, unused labels. Link: https://lore.kernel.org/lkml/20220909074842.281232-1-chenweilong@xxxxxxxxxx/T/#m4e1c915ead04f4e2e48d69131053a966801625db .../bindings/i2c/hisilicon,hisi-i2c.yaml | 72 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml new file mode 100644 index 000000000000..b06eb8cb88bc --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/i2c/hisilicon,hisi-i2c.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: HiSilicon common IIC controller Device Tree Bindings + +maintainers: + - yangyicong@xxxxxxxxxx + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + const: hisilicon,hisi-i2c + description: + The HiSilicon common IIC controller can be used for many different + types of SoC such as Huawei Ascend AI series chips. We use the common + string (hisi) for specific compatibles to avoid confusion caused by a + lot of different names. + + 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: + - | + i2c@5038b0000 { + compatible = "hisilicon,hisi-i2c"; + reg = <0x38b0000 0x10000>; + interrupts = <0x0 120 0x4>; + 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 d213a831133f..4c928a444e4b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9155,6 +9155,7 @@ L: linux-i2c@xxxxxxxxxxxxxxx S: Maintained W: https://www.hisilicon.com F: drivers/i2c/busses/i2c-hisi.c +F: Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml HISILICON LPC BUS DRIVER M: john.garry@xxxxxxxxxx -- 2.31.GIT
