linux-kernel - Re: [PATCH 1/2] dt-bindings: PCI: xilinx-cpm: Add compatible string for CPM5 controller-1.

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Message-ID: <7ebc9676-d66c-4d82-902b-e824bcb2c921@kernel.org>
Date: Fri, 6 Sep 2024 12:46:03 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: "Havalige, Thippeswamy" <thippeswamy.havalige@....com>,
 "manivannan.sadhasivam@...aro.org" <manivannan.sadhasivam@...aro.org>,
 "robh@...nel.org" <robh@...nel.org>,
 "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
 "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
 "linux-arm-kernel@...ts.infradead.org"
 <linux-arm-kernel@...ts.infradead.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
 "conor+dt@...nel.org" <conor+dt@...nel.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Cc: "Gogada, Bharat Kumar" <bharat.kumar.gogada@....com>,
 "Simek, Michal" <michal.simek@....com>,
 "lpieralisi@...nel.org" <lpieralisi@...nel.org>, "kw@...ux.com"
 <kw@...ux.com>
Subject: Re: [PATCH 1/2] dt-bindings: PCI: xilinx-cpm: Add compatible string
 for CPM5 controller-1.

On 06/09/2024 12:43, Havalige, Thippeswamy wrote:
> Hi Krzysztof
> 
>> -----Original Message-----
>> From: Krzysztof Kozlowski <krzk@...nel.org>
>> Sent: Friday, September 6, 2024 3:26 PM
>> To: Havalige, Thippeswamy <thippeswamy.havalige@....com>;
>> manivannan.sadhasivam@...aro.org; robh@...nel.org; linux-
>> pci@...r.kernel.org; bhelgaas@...gle.com; linux-arm-
>> kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
>> krzk+dt@...nel.org; conor+dt@...nel.org; devicetree@...r.kernel.org
>> Cc: Gogada, Bharat Kumar <bharat.kumar.gogada@....com>; Simek,
>> Michal <michal.simek@....com>; lpieralisi@...nel.org; kw@...ux.com
>> Subject: Re: [PATCH 1/2] dt-bindings: PCI: xilinx-cpm: Add compatible string
>> for CPM5 controller-1.
>>
>> On 06/09/2024 11:31, Thippeswamy Havalige wrote:
>>> The Xilinx Versal premium series has CPM5 block which supports two
>>> typeA Root Port controller functionality at Gen5 speed.
>>>
>>> Add compatible string to distinguish between two CPM5 rootport
>> controller1.
>>
>> Subjects NEVER end with full stops.
> Thanks, Update in the next patch series.
>>>
>>> Error interrupt register and bits for both the controllers are at
>>> different.
>>>
>>> Signed-off-by: Thippeswamy Havalige <thippesw@....com>
>>> ---
>>>  Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
>>> b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
>>> index 989fb0fa2577..b63a759ec2d7 100644
>>> --- a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
>>> +++ b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
>>> @@ -17,6 +17,7 @@ properties:
>>>      enum:
>>>        - xlnx,versal-cpm-host-1.00
>>>        - xlnx,versal-cpm5-host
>>> +      - xlnx,versal-cpm5-host1
>>
>> That's poor naming. "-1.00" and now "1". Get your naming reasonable...
> Here 1.00 represents the IP versioning and host1 represents controller-1. 

I understand but you repeating the same is not helping. Make it better
and next time upstream "host1-1" compatible.

Number of ports, BTW, comes from ports, right? So no need for the
compatible.

Best regards,
Krzysztof