Re: [PATCH next v4 2/2] dt-bindings: i2c: add entry for hisilicon,hisi-i2c

chenweilong
2022-09-14T04:13:38Z

Thanks for your review. I'll update the patch.
On 2022/9/13 20:22, Rob Herring wrote:
> On Fri, Sep 09, 2022 at 03:48:42PM +0800, Weilong Chen wrote:
>> Add the new compatible for HiSilicon common i2c.
>>
>> Signed-off-by: Weilong Chen <chenweilong@huawei.com>
>> ---
>> .../bindings/i2c/hisilicon,hisi-i2c.yaml | 67 +++++++++++++++++++
>> 1 file changed, 67 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..f1cb6a4c70d1
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
>> @@ -0,0 +1,67 @@
>> +# 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@huawei.com
>> +
>> +allOf:
>> + - $ref: /schemas/i2c/i2c-controller.yaml#
>> +
>> +properties:
>> + compatible:
>> + const: hisilicon,hisi-i2c
> You need SoC specific compatibles.
>
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + clk_rate:
>> + default: 0xEE6B280
> What is this property for? Use the clock binding.
>
>> +
>> + clock-frequency:
>> + default: 400000
>> +
>> + i2c-sda-falling-time-ns:
>> + default: 343
>> +
>> + i2c-scl-falling-time-ns:
>> + default: 203
>> +
>> + i2c-sda-hold-time-ns:
>> + default: 0x33E
> The rest are in decimal. Be consistent.
>
>> +
>> + i2c-scl-rising-time-ns:
>> + default: 365
>> +
>> + i2c-digital-filter-width-ns:
>> + default: 0
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - interrupts
>> +
>> +unevaluatedProperties: false
>> +
>> +examples:
>> + - |
>> + i2c1: i2c@5038B0000{
> Space needed ^
>
> Use lowercase hex.
>
> Drop unused labels.
>
>> + 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>;
>> + clk_rate = <0x0 0xEE6B280>;
>> + clock-frequency = <400000>;
>> + };
>> --
>> 2.31.GIT
>>
>>
> .