From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Arnd Bergmann <arnd@arndb.de>,
Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 9/9] ARM: dts: uniphier: Remove compatible "snps,dw-pcie-ep" from Pro5 pcie-ep node
Date: Tue, 2 Aug 2022 10:33:50 +0200 [thread overview]
Message-ID: <64e3702b-f09b-5a2e-b6a5-4c8752fbad77@linaro.org> (raw)
In-Reply-To: <CAK8P3a0D4CYqZipY30scDA=KkWR_Az_5i-8avkg6EeDs1nM62w@mail.gmail.com>
On 30/07/2022 13:58, Arnd Bergmann wrote:
> On Mon, Jul 4, 2022 at 2:20 AM Kunihiko Hayashi
> <hayashi.kunihiko@socionext.com> wrote:
>>
>> UniPhier PCIe endpoint controller doesn't use "snps,dw-pcie-ep" compatible,
>> so this is no longer needed. Remove the compatible string from the pcie-ep
>> node to fix the following warning.
>>
>> uniphier-pro5-epcore.dtb: pcie@66000000: compatible: ['socionext,uniphier-pro5-pcie-ep', 'snps,dw-pcie-ep'] is too long
>> From schema: Documentation/devicetree/bindings/pci/socionext,uniphier-pcie-ep.yaml
>>
>
> This sounds like a problem with the binding rather than the dt file. Is this not
> a designware pci endpoint? Should it be documented in that binding instead?
Depends. We had one or two similar cases, where we dropped the snps/dw
generic compatible, because device was actually quite different and
could not match against snps/dw compatible. IOW, if device bound/matched
via generic compatible it would be entirely non-operational. Logically I
think it is okay to drop the generic compatible. Different question is
any ABI break.
Best regards,
Krzysztof
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next prev parent reply other threads:[~2022-08-02 8:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-04 0:20 [PATCH 0/9] Update UniPhier armv7 devicetree Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 1/9] ARM: dts: uniphier: Fix USB interrupts for PXs2 SoC Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 2/9] ARM: dts: uniphier: Rename pvtctl node to thermal-sensor Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 3/9] ARM: dts: uniphier: Rename usb-phy node to usb-glue Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 4/9] ARM: dts: uniphier: Rename gpio-hog node Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 5/9] ARM: dts: uniphier: Use GIC interrupt definitions Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 6/9] ARM: dts: uniphier: Add ahci controller and glue layer nodes for Pro4 Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 7/9] ARM: dts: uniphier: Add ahci controller and glue layer nodes for PXs2 Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 8/9] ARM: dts: uniphier: Move interrupt-parent property to each child node in uniphier-support-card Kunihiko Hayashi
2022-07-04 0:20 ` [PATCH 9/9] ARM: dts: uniphier: Remove compatible "snps,dw-pcie-ep" from Pro5 pcie-ep node Kunihiko Hayashi
2022-07-30 11:58 ` Arnd Bergmann
2022-08-02 8:33 ` Krzysztof Kozlowski [this message]
2022-08-02 13:10 ` Kunihiko Hayashi
2022-08-03 6:11 ` Krzysztof Kozlowski
2022-08-04 6:26 ` Kunihiko Hayashi
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