linux-kernel - Re: [PATCH 2/2] dt-bindings: usb: ti,usb8041: Add binding for TI USB8044 hub controller

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Message-ID: <583dc73e-23d3-4c8a-a457-f2bf71190e6a@topic.nl>
Date: Thu, 8 May 2025 17:19:03 +0200
From: Mike Looijmans <mike.looijmans@...ic.nl>
To: Conor Dooley <conor@...nel.org>
CC: linux-usb@...r.kernel.org,
 Alexander Stein <alexander.stein@...tq-group.com>,
 Conor Dooley <conor+dt@...nel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: usb: ti,usb8041: Add binding for TI
 USB8044 hub controller

On 08-05-2025 16:58, Conor Dooley wrote:
> On Wed, May 07, 2025 at 03:11:43PM +0200, Mike Looijmans wrote:
>> The TI USB8044 is similar to the USB8041.
> Similar how? Why's a fallback not suitable?

I don't quite understand what is meant by "fallback" here?

It's similar in that the USB8044 provides the same functionality and can 
use the same driver as the USB8041, all that is needed is to add the 
PID/VID values.

M.

>
>> Signed-off-by: Mike Looijmans <mike.looijmans@...ic.nl>
>> ---
>>
>>   Documentation/devicetree/bindings/usb/ti,usb8041.yaml | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/usb/ti,usb8041.yaml b/Documentation/devicetree/bindings/usb/ti,usb8041.yaml
>> index c2e29bd61e11..fd6b35a40a5b 100644
>> --- a/Documentation/devicetree/bindings/usb/ti,usb8041.yaml
>> +++ b/Documentation/devicetree/bindings/usb/ti,usb8041.yaml
>> @@ -4,7 +4,7 @@
>>   $id: http://devicetree.org/schemas/usb/ti,usb8041.yaml#
>>   $schema: http://devicetree.org/meta-schemas/core.yaml#
>>   
>> -title: TI USB8041 USB 3.0 hub controller
>> +title: TI USB8041 and USB8044 USB 3.0 hub controllers
>>   
>>   maintainers:
>>     - Alexander Stein <alexander.stein@...tq-group.com>
>> @@ -17,6 +17,8 @@ properties:
>>       enum:
>>         - usb451,8140
>>         - usb451,8142
>> +      - usb451,8440
>> +      - usb451,8442
>>   
>>     reg: true
>>   
>> -- 
>> 2.34.1
>>
>>
>> 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@...ic.nl
>> W: www.topic.nl
>>
>> Please consider the environment before printing this e-mail


-- 
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@...ic.nl
W: www.topic.nl