linux-kernel - Re: [PATCH 1/2] dt-bindings: usb: misc: Add microchip USB5807 HUB driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <0332e0d2-5b7a-d79f-490b-a8e60e4663f8@topic.nl>
Date:   Wed, 10 May 2023 17:04:34 +0200
From:   Mike Looijmans <mike.looijmans@...ic.nl>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        devicetree@...r.kernel.org, linux-usb@...r.kernel.org
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: usb: misc: Add microchip USB5807 HUB
 driver

I'll fix the issues and send a v2. I'll add supply/regulators as well. 
Will take a few days though.

Thanks for the quick feedback, much appreciated.
--


Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands

T: +31 (0) 499 33 69 69
E: mike.looijmans@...icproducts.com
W: www.topic.nl

Please consider the environment before printing this e-mail
On 09-05-2023 10:02, Krzysztof Kozlowski wrote:
> On 09/05/2023 09:46, Mike Looijmans wrote:
>> The USB5807 is a 7-port USB 3.1 hub that can be configured by I2C.
>> This driver resets the chip, optionally allows D+/D- lines to be
>> swapped in the devicetree config, and then sends an ATTACH command to
>> put the device in operational mode.
>>
>> Signed-off-by: Mike Looijmans <mike.looijmans@...ic.nl>
>>
> Subject: drop misc prefix.
> Subject: drop "driver", you are not adding driver here.
>
>> ---
>>
>>   .../devicetree/bindings/usb/usb5807.yaml      | 51 +++++++++++++++++++
>>   1 file changed, 51 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/usb/usb5807.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/usb/usb5807.yaml b/Documentation/devicetree/bindings/usb/usb5807.yaml
>> new file mode 100644
>> index 000000000000..06b94210c281
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/usb/usb5807.yaml
> Filename like compatible.
>
>> @@ -0,0 +1,51 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/usb/usb5807.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Microchip USB 3.1 SuperSpeed Hub Controller
>> +
>> +maintainers:
>> +  - Mike Looijmans <mike.looijmans@...ic.nl>
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - microchip,usb5807
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  reset-gpios:
>> +    description: |
>> +      Should specify the gpio for hub reset
> Drop description, obvious. maxItems instead. If you decide to add
> description, then keep it useful, e.g. mention active low.
>
>
>> +
>> +  swap-dx-lanes:
>> +    $ref: /schemas/types.yaml#/definitions/uint8-array
>> +    description: |
> Do not need '|' unless you need to preserve formatting.
>
>> +      Specifies the ports which will swap the differential-pair (D+/D-),
>> +      default is not-swapped.
> maxItems (and minItems if it differs)
>
> No supply? How does the hub gets power? I see at least two supplies in
> datasheet.
>
>> +
>> +additionalProperties: false
>> +
>> +required:
>> +  - compatible
>> +  - reg
> Best regards,
> Krzysztof
>

-- 
Mike Looijmans