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From: Tomasz Nowicki <tn@semihalf.com>
To: Robin Murphy <robin.murphy@arm.com>,
	will@kernel.org, joro@8bytes.org, gregory.clement@bootlin.com,
	robh+dt@kernel.org, hannah@marvell.com
Cc: devicetree@vger.kernel.org, catalin.marinas@arm.com,
	linux-kernel@vger.kernel.org, nadavh@marvell.com,
	iommu@lists.linux-foundation.org, mw@semihalf.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 3/4] dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806 SMMU-500
Date: Fri, 3 Jul 2020 11:26:32 +0200	[thread overview]
Message-ID: <972f5cbd-705b-e18a-7477-5f6922804361@semihalf.com> (raw)
In-Reply-To: <3172ec21-d773-7fcb-f1ee-f557f72f20c5@arm.com>

On 03.07.2020 11:05, Robin Murphy wrote:
> On 2020-07-02 21:16, Tomasz Nowicki wrote:
>> Add specific compatible string for Marvell usage due to errata of
>> accessing 64bits registers of ARM SMMU, in AP806.
>>
>> AP806 SoC uses the generic ARM-MMU500, and there's no specific
>> implementation of Marvell, this compatible is used for errata only.
>>
>> Signed-off-by: Hanna Hawa <hannah@marvell.com>
>> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
>> Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
>> ---
>>   Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 5 +++++
>>   1 file changed, 5 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml 
>> b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
>> index d7ceb4c34423..7beca9c00b12 100644
>> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
>> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
>> @@ -38,6 +38,11 @@ properties:
>>                 - qcom,sc7180-smmu-500
>>                 - qcom,sdm845-smmu-500
>>             - const: arm,mmu-500
>> +      - description: Marvell SoCs implementing "arm,mmu-500"
>> +        items:
>> +          - enum:
>> +              - marvell,ap806-smmu-500
> 
> Isn't a single-valued enum just a constant? :P

That's how copy-paste engineering ends up :)

Thanks,
Tomasz
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  reply	other threads:[~2020-07-03  9:26 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-02 20:16 [PATCH v3 0/4] Add system mmu support for Armada-806 Tomasz Nowicki
2020-07-02 20:16 ` [PATCH v3 1/4] iommu/arm-smmu: Add SMMU ID2 register fixup hook Tomasz Nowicki
2020-07-03  8:24   ` Robin Murphy
2020-07-03  9:19     ` Tomasz Nowicki
2020-07-02 20:16 ` [PATCH v3 2/4] iommu/arm-smmu: Workaround for Marvell Armada-AP806 SoC erratum #582743 Tomasz Nowicki
2020-07-03  9:03   ` Robin Murphy
2020-07-03 11:24     ` Tomasz Nowicki
2020-07-02 20:16 ` [PATCH v3 3/4] dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806 SMMU-500 Tomasz Nowicki
2020-07-03  9:05   ` Robin Murphy
2020-07-03  9:26     ` Tomasz Nowicki [this message]
2020-07-13 21:36       ` Rob Herring
2020-07-02 20:16 ` [PATCH v3 4/4] arm64: dts: marvell: add SMMU support Tomasz Nowicki
2020-07-03  9:16   ` Robin Murphy
2020-07-03  9:33     ` Tomasz Nowicki
2020-07-03 10:38       ` Marcin Wojtas
2020-07-14  8:19 ` [PATCH v3 0/4] Add system mmu support for Armada-806 Will Deacon
2020-07-14 10:26   ` Tomasz Nowicki

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