linux-kernel - Re: [PATCH v4 2/5] dt-bindings: pci: cadence: Extend compatible for new EP configurations

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Message-ID: <5334e87c-edf3-4dd9-a6d5-265cd279dbdc@cixtech.com>
Date: Fri, 25 Apr 2025 23:33:02 +0800
From: Hans Zhang <hans.zhang@...tech.com>
To: Conor Dooley <conor@...nel.org>,
 Manikandan Karunakaran Pillai <mpillai@...ence.com>
Cc: "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
 "lpieralisi@...nel.org" <lpieralisi@...nel.org>, "kw@...ux.com"
 <kw@...ux.com>,
 "manivannan.sadhasivam@...aro.org" <manivannan.sadhasivam@...aro.org>,
 "robh@...nel.org" <robh@...nel.org>, "krzk+dt@...nel.org"
 <krzk+dt@...nel.org>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
 "peter.chen@...tech.com" <peter.chen@...tech.com>,
 "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 2/5] dt-bindings: pci: cadence: Extend compatible for
 new EP configurations



On 2025/4/25 22:48, Conor Dooley wrote:
> On Fri, Apr 25, 2025 at 02:19:11AM +0000, Manikandan Karunakaran Pillai wrote:
>>>
>>> On Thu, Apr 24, 2025 at 04:29:35PM +0100, Conor Dooley wrote:
>>>> On Thu, Apr 24, 2025 at 09:04:41AM +0800,hans.zhang@...tech.com  wrote:
>>>>> From: Manikandan K Pillai<mpillai@...ence.com>
>>>>>
>>>>> Document the compatible property for HPA (High Performance
>>> Architecture)
>>>>> PCIe controller EP configuration.
>>>> Please explain what makes the new architecture sufficiently different
>>>> from the existing one such that a fallback compatible does not work.
>>>>
>>>> Same applies to the other binding patch.
>>> Additionally, since this IP is likely in use on your sky1 SoC, why is a
>>> soc-specific compatible for your integration not needed?
>>>
>> The sky1 SoC support patches will be developed and submitted by the Sky1
>> team separately.
> Why? Cixtech sent this patchset, they should send it with their user.

Hi Conor,

Please look at the communication history of this website.

https://patchwork.kernel.org/project/linux-pci/patch/CH2PPF4D26F8E1C1CBD2A866C59AA55CD7AA2A12@CH2PPF4D26F8E1C.namprd07.prod.outlook.com/


Best regards,
Hans