From: Krzysztof Kozlowski <krzk@kernel.org>
To: Manikandan Karunakaran Pillai <mpillai@cadence.com>,
Hans Zhang <hans.zhang@cixtech.com>
Cc: "bhelgaas@google.com" <bhelgaas@google.com>,
"lpieralisi@kernel.org" <lpieralisi@kernel.org>,
"kw@linux.com" <kw@linux.com>,
"mani@kernel.org" <mani@kernel.org>,
"robh@kernel.org" <robh@kernel.org>,
"kwilczynski@kernel.org" <kwilczynski@kernel.org>,
"krzk+dt@kernel.org" <krzk+dt@kernel.org>,
"conor+dt@kernel.org" <conor+dt@kernel.org>,
"fugang.duan@cixtech.com" <fugang.duan@cixtech.com>,
"guoyin.chen@cixtech.com" <guoyin.chen@cixtech.com>,
"peter.chen@cixtech.com" <peter.chen@cixtech.com>,
"cix-kernel-upstream@cixtech.com"
<cix-kernel-upstream@cixtech.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 01/14] dt-bindings: pci: cadence: Extend compatible for new RP configuration
Date: Thu, 3 Jul 2025 08:55:13 +0200 [thread overview]
Message-ID: <62a70894-13f6-4057-bd03-d26ce0506f49@kernel.org> (raw)
In-Reply-To: <CH2PPF4D26F8E1C29A09F1B6C6608DA3145A243A@CH2PPF4D26F8E1C.namprd07.prod.outlook.com>
On 03/07/2025 03:35, Manikandan Karunakaran Pillai wrote:
>>> Hi Kryzsztof,
>>>
>>> Are you suggesting to create new file for both RC and EP for HPA host like:
>>> cdns,cdns-pcie-hpa-host.yaml
>>> cdns,cdns-pcie-hpa-ep.yaml
>>> And during the commit log, explain why you need to create a new file for
>> HPA, and not use the legacy one.
>>
>> No, there was no such suggestions in any previous or current
>> discussions. IIRC, this was simply rejected previously. I consider this
>> rejected still, with the same arguments: you should use specific SoC
>> compatibles. The generic compatible alone is rather legacy approach and
>> we have been commenting on this sooooo many times.
>>
>
> Hi Kryzsztof,
>
> Thanks for your response.
> The SoC specific dts patches are already being submitted by CIX team for their SoC based on the same PCIe controller IP.
There is a SoC, otherwise why is this attached to completely unrelated
patches?
>
> Since there is no SoC for this platform(it only an FPGA based board),
> are you suggesting to drop the dt-bindings patch altogether as the SoC specific dts bindings are already being in the same patch set.
I have impression I discussed it... either in this thread or other. I am
fine with adding compatible for your virtual setup / FPGA platform, but
this has to reflect that case. Otherwise everyone will use this one
here, just like it happened with other cdns cores.
Best regards,
Krzysztof
next prev parent reply other threads:[~2025-07-03 6:55 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-30 4:15 [PATCH v5 00/14] Enhance the PCIe controller driver hans.zhang
2025-06-30 4:15 ` [PATCH v5 01/14] dt-bindings: pci: cadence: Extend compatible for new RP configuration hans.zhang
2025-06-30 7:30 ` Krzysztof Kozlowski
2025-06-30 8:02 ` Hans Zhang
2025-06-30 8:06 ` Manikandan Karunakaran Pillai
2025-06-30 11:11 ` Krzysztof Kozlowski
2025-07-01 11:56 ` Manikandan Karunakaran Pillai
2025-07-02 20:20 ` Krzysztof Kozlowski
2025-07-03 1:35 ` Manikandan Karunakaran Pillai
2025-07-03 6:55 ` Krzysztof Kozlowski [this message]
2025-06-30 4:15 ` [PATCH v5 02/14] dt-bindings: pci: cadence: Extend compatible for new EP configuration hans.zhang
2025-06-30 7:27 ` Krzysztof Kozlowski
2025-06-30 8:03 ` Hans Zhang
2025-06-30 10:28 ` Krzysztof Kozlowski
2025-06-30 4:15 ` [PATCH v5 03/14] PCI: cadence: Split PCIe controller header file hans.zhang
2025-06-30 4:15 ` [PATCH v5 04/14] PCI: cadence: Add register definitions for HPA(High Perf Architecture) hans.zhang
2025-06-30 4:15 ` [PATCH v5 05/14] PCI: cadence: Split PCIe EP support into common and specific functions hans.zhang
2025-06-30 4:15 ` [PATCH v5 06/14] PCI: cadence: Split PCIe RP " hans.zhang
2025-06-30 4:15 ` [PATCH v5 07/14] PCI: cadence: Split the common functions for PCIE controller support hans.zhang
2025-06-30 4:15 ` [PATCH v5 08/14] PCI: cadence: Add support for High Performance Arch(HPA) controller hans.zhang
2025-06-30 4:15 ` [PATCH v5 09/14] PCI: cadence: Add support for PCIe HPA controller platform hans.zhang
2025-06-30 4:15 ` [PATCH v5 10/14] dt-bindings: PCI: Add CIX Sky1 PCIe Root Complex bindings hans.zhang
2025-06-30 5:36 ` Rob Herring (Arm)
2025-06-30 5:56 ` Hans Zhang
2025-06-30 7:26 ` Krzysztof Kozlowski
2025-06-30 8:29 ` Hans Zhang
2025-06-30 11:14 ` Krzysztof Kozlowski
2025-06-30 15:30 ` Hans Zhang
2025-07-02 20:23 ` Krzysztof Kozlowski
2025-07-03 1:47 ` Hans Zhang
2025-07-14 7:43 ` Krzysztof Kozlowski
2025-07-14 8:03 ` Hans Zhang
2025-07-15 6:40 ` Krzysztof Kozlowski
2025-07-15 6:46 ` Hans Zhang
2025-06-30 15:54 ` Hans Zhang
2025-07-02 20:28 ` Krzysztof Kozlowski
2025-06-30 4:15 ` [PATCH v5 11/14] PCI: sky1: Add PCIe host support for CIX Sky1 hans.zhang
2025-06-30 4:15 ` [PATCH v5 12/14] MAINTAINERS: add entry for CIX Sky1 PCIe driver hans.zhang
2025-06-30 7:29 ` Krzysztof Kozlowski
2025-06-30 8:06 ` Hans Zhang
2025-06-30 4:16 ` [PATCH v5 13/14] arm64: dts: cix: Add PCIe Root Complex on sky1 hans.zhang
2025-06-30 7:33 ` Krzysztof Kozlowski
2025-06-30 8:44 ` Hans Zhang
2025-06-30 4:16 ` [PATCH v5 14/14] arm64: dts: cix: Enable PCIe on the Orion O6 board hans.zhang
2025-06-30 7:32 ` Krzysztof Kozlowski
2025-06-30 8:08 ` Hans Zhang
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