From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Gautam Subject: [PATCH v2 1/3] dt-bindings: arm-smmu: Add binding doc for Qcom smmu-500 Date: Tue, 14 Aug 2018 15:57:38 +0530 Message-ID: <20180814102740.30222-2-vivek.gautam@codeaurora.org> References: <20180814102740.30222-1-vivek.gautam@codeaurora.org> Return-path: In-Reply-To: <20180814102740.30222-1-vivek.gautam@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: joro@8bytes.org, robh+dt@kernel.org, andy.gross@linaro.org, will.deacon@arm.com, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org Cc: mark.rutland@arm.com, robin.murphy@arm.com, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Vivek Gautam List-Id: devicetree@vger.kernel.org Qcom's implementation of arm,mmu-500 works well with current arm-smmu driver implementation. Adding a soc specific compatible along with arm,mmu-500 makes the bindings future safe. Signed-off-by: Vivek Gautam --- Documentation/devicetree/bindings/iommu/arm,smmu.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt index 7c71a6ed465a..7d73b2a259fc 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt @@ -18,6 +18,7 @@ conditions. "arm,mmu-500" "cavium,smmu-v2" "qcom,-smmu-v2", "qcom,smmu-v2" + "qcom,-smmu-500", "arm,mmu-500" depending on the particular implementation and/or the version of the architecture implemented. @@ -30,6 +31,10 @@ conditions. An example string would be - "qcom,msm8996-smmu-v2", "qcom,smmu-v2". + "qcom,-smmu-500" compatible string represents qcom's soc + specific implementation of arm,mmu-500, and should be present + along with "arm,mmu-500". + - reg : Base address and size of the SMMU. - #global-interrupts : The number of global interrupts exposed by the -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation