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Fri, 03 Jul 2020 02:26:33 -0700 (PDT) Subject: Re: [PATCH v3 3/4] dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806 SMMU-500 To: Robin Murphy , will@kernel.org, joro@8bytes.org, gregory.clement@bootlin.com, robh+dt@kernel.org, hannah@marvell.com Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, catalin.marinas@arm.com, nadavh@marvell.com, linux-arm-kernel@lists.infradead.org, mw@semihalf.com References: <20200702201633.22693-1-tn@semihalf.com> <20200702201633.22693-4-tn@semihalf.com> <3172ec21-d773-7fcb-f1ee-f557f72f20c5@arm.com> From: Tomasz Nowicki Message-ID: <972f5cbd-705b-e18a-7477-5f6922804361@semihalf.com> Date: Fri, 3 Jul 2020 11:26:32 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <3172ec21-d773-7fcb-f1ee-f557f72f20c5@arm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 >> Signed-off-by: Gregory CLEMENT >> Signed-off-by: Tomasz Nowicki >> --- >>   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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59C48C433DF for ; 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bh=zO0GcSjV+DoJTBjOrWxT1/ANl2QKnx4z2PRw1DUFok4=; b=rebuBmrCNyYj/sXP2797EvQg+UEB2DUjgetE1mWQXnuzT2WCerpN6ONfPlR7YKFb/b 65rhlG/4lA2e3/Hf18Ul1H/6oft73yYY90PrBvR0hhtPIRdfP62xE6IUfVqDHvBR+WX3 9ZRAQlZG9sqMAVBrWqEK3/Se4qIpUotsR25axpadyHUXiqSFs1Em7wtue06kG7mbTgc+ V6ekOp9zRZg41UxgbVc3+BYTYLq5sQyniNP7SKCiTUd1ovW1oWjWLzwyAHCuvVwFEMjJ XeLfmp5hkHMlat3TprI9RhQZitt72L7oD3rXysNUI9W+mxGJNws9deNMmETK9iVik8ML /E6g== X-Gm-Message-State: AOAM533GDmG025OrP0Y5C+uKCQ39FlUSH+pjOkloArZEhpJ+dTFRxfra 6BOR75e1wVAX7O+GtiFBpMcQVA== X-Google-Smtp-Source: ABdhPJyIGppCefmxj8fTRRtxz2K/PWcGR2BmqZOk0LbePzJxgW7tKvDo9qI60CWqvjE7deprzGXjKg== X-Received: by 2002:ac2:5e6c:: with SMTP id a12mr21462673lfr.35.1593768394546; Fri, 03 Jul 2020 02:26:34 -0700 (PDT) Received: from [192.168.1.9] ([83.68.95.66]) by smtp.googlemail.com with ESMTPSA id j4sm4453721lfb.94.2020.07.03.02.26.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Jul 2020 02:26:33 -0700 (PDT) Subject: Re: [PATCH v3 3/4] dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806 SMMU-500 To: Robin Murphy , will@kernel.org, joro@8bytes.org, gregory.clement@bootlin.com, robh+dt@kernel.org, hannah@marvell.com References: <20200702201633.22693-1-tn@semihalf.com> <20200702201633.22693-4-tn@semihalf.com> <3172ec21-d773-7fcb-f1ee-f557f72f20c5@arm.com> From: Tomasz Nowicki Message-ID: <972f5cbd-705b-e18a-7477-5f6922804361@semihalf.com> Date: Fri, 3 Jul 2020 11:26:32 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <3172ec21-d773-7fcb-f1ee-f557f72f20c5@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200703_052637_376164_709A55F3 X-CRM114-Status: GOOD ( 14.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMDMuMDcuMjAyMCAxMTowNSwgUm9iaW4gTXVycGh5IHdyb3RlOgo+IE9uIDIwMjAtMDctMDIg MjE6MTYsIFRvbWFzeiBOb3dpY2tpIHdyb3RlOgo+PiBBZGQgc3BlY2lmaWMgY29tcGF0aWJsZSBz dHJpbmcgZm9yIE1hcnZlbGwgdXNhZ2UgZHVlIHRvIGVycmF0YSBvZgo+PiBhY2Nlc3NpbmcgNjRi aXRzIHJlZ2lzdGVycyBvZiBBUk0gU01NVSwgaW4gQVA4MDYuCj4+Cj4+IEFQODA2IFNvQyB1c2Vz IHRoZSBnZW5lcmljIEFSTS1NTVU1MDAsIGFuZCB0aGVyZSdzIG5vIHNwZWNpZmljCj4+IGltcGxl bWVudGF0aW9uIG9mIE1hcnZlbGwsIHRoaXMgY29tcGF0aWJsZSBpcyB1c2VkIGZvciBlcnJhdGEg b25seS4KPj4KPj4gU2lnbmVkLW9mZi1ieTogSGFubmEgSGF3YSA8aGFubmFoQG1hcnZlbGwuY29t Pgo+PiBTaWduZWQtb2ZmLWJ5OiBHcmVnb3J5IENMRU1FTlQgPGdyZWdvcnkuY2xlbWVudEBib290 bGluLmNvbT4KPj4gU2lnbmVkLW9mZi1ieTogVG9tYXN6IE5vd2lja2kgPHRuQHNlbWloYWxmLmNv bT4KPj4gLS0tCj4+IMKgIERvY3VtZW50YXRpb24vZGV2aWNldHJlZS9iaW5kaW5ncy9pb21tdS9h cm0sc21tdS55YW1sIHwgNSArKysrKwo+PiDCoCAxIGZpbGUgY2hhbmdlZCwgNSBpbnNlcnRpb25z KCspCj4+Cj4+IGRpZmYgLS1naXQgYS9Eb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3Mv aW9tbXUvYXJtLHNtbXUueWFtbCAKPj4gYi9Eb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGlu Z3MvaW9tbXUvYXJtLHNtbXUueWFtbAo+PiBpbmRleCBkN2NlYjRjMzQ0MjMuLjdiZWNhOWMwMGIx MiAxMDA2NDQKPj4gLS0tIGEvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdzL2lvbW11 L2FybSxzbW11LnlhbWwKPj4gKysrIGIvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdz L2lvbW11L2FybSxzbW11LnlhbWwKPj4gQEAgLTM4LDYgKzM4LDExIEBAIHByb3BlcnRpZXM6Cj4+ IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCAtIHFjb20sc2M3MTgwLXNtbXUtNTAwCj4+ IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCAtIHFjb20sc2RtODQ1LXNtbXUtNTAwCj4+ IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgLSBjb25zdDogYXJtLG1tdS01MDAKPj4gK8KgwqDCoMKg wqAgLSBkZXNjcmlwdGlvbjogTWFydmVsbCBTb0NzIGltcGxlbWVudGluZyAiYXJtLG1tdS01MDAi Cj4+ICvCoMKgwqDCoMKgwqDCoCBpdGVtczoKPj4gK8KgwqDCoMKgwqDCoMKgwqDCoCAtIGVudW06 Cj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCAtIG1hcnZlbGwsYXA4MDYtc21tdS01MDAK PiAKPiBJc24ndCBhIHNpbmdsZS12YWx1ZWQgZW51bSBqdXN0IGEgY29uc3RhbnQ/IDpQCgpUaGF0 J3MgaG93IGNvcHktcGFzdGUgZW5naW5lZXJpbmcgZW5kcyB1cCA6KQoKVGhhbmtzLApUb21hc3oK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFy bS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9y ZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1r ZXJuZWwK