linux-kernel - Re: [PATCH 3/4] PCI: mobiveil: Drop layerscape-gen4 support

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Message-ID: <4608d029-9cad-4de7-b8be-aeecf6768bc8@kernel.org>
Date: Sat, 10 Aug 2024 17:01:23 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Frank Li <Frank.li@....com>, Bjorn Helgaas <helgaas@...nel.org>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>,
 Lorenzo Pieralisi <lpieralisi@...nel.org>,
 Krzysztof Wilczyński <kw@...ux.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Zhiqiang.Hou@....com,
 linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev
Subject: Re: [PATCH 3/4] PCI: mobiveil: Drop layerscape-gen4 support

On 08/08/2024 20:08, Frank Li wrote:
> On Thu, Aug 08, 2024 at 12:26:44PM -0500, Bjorn Helgaas wrote:
>> On Thu, Aug 08, 2024 at 12:02:16PM -0400, Frank Li wrote:
>>> Only lx2160 rev1 use mobiveil PCIe controller. Rev2 switch to designware
>>> PCIe controller. Rev2 is mass production chip and Rev1 will be not
>>> supported. So drop related code.
>>
>> I'd love to drop this, but only if you're confident that no Rev 1
>> controllers are in the field with people using them.  The explanation
>> above doesn't go quite that far.  It's not enough that Mobiveil
>> doesn't want to support Rev 1.  If we know that all Rev 1 controllers
>> have been destroyed, that would be perfect and useful to include here.
> 
> I can't guarrantee all Rev1 have been destroyed because some may left on
> someone's drawer or lab. How about drop all document firstly,

No, documents are LAST things which are being dropped.

Best regards,
Krzysztof