From: Chunyan Zhang <zhang.lyra@gmail.com> To: Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org> Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, Baolin Wang <baolin.wang7@gmail.com>, linux-kernel@vger.kernel.org, Orson Zhai <orsonzhai@gmail.com>, Chunyan Zhang <zhang.lyra@gmail.com>, Sheng Xu <sheng.xu@unisoc.com>, Kevin Tang <kevin.tang@unisoc.com> Subject: [RFC PATCH 1/2] dt-bindings: iommu: add bindings for sprd iommu Date: Wed, 23 Dec 2020 19:16:32 +0800 [thread overview] Message-ID: <20201223111633.1711477-1-zhang.lyra@gmail.com> (raw) From: Chunyan Zhang <chunyan.zhang@unisoc.com> This patch only adds bindings to support display iommu, support for others would be added once finished tests with those devices, such as Image codec(jpeg) processor, a few signal processors, including VSP(video), GSP(graphic), ISP(image), and camera CPP, etc. Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> --- .../devicetree/bindings/iommu/sprd,iommu.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/sprd,iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/sprd,iommu.yaml b/Documentation/devicetree/bindings/iommu/sprd,iommu.yaml new file mode 100644 index 000000000000..4d9a578a7cc9 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/sprd,iommu.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright 2020 Unisoc Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/sprd,iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Unisoc IOMMU and Multi-media MMU + +maintainers: + - Chunyan Zhang <zhang.lyra@gmail.com> + +properties: + compatible: + enum: + - sprd,iommu-disp + + reg: + maxItems: 1 + + "#iommu-cells": + const: 0 + description: + Unisoc IOMMUs are all single-master IOMMU devices, therefore no + additional information needs to associate with its master device. + Please refer to the generic bindings document for more details, + Documentation/devicetree/bindings/iommu/iommu.txt + +required: + - compatible + - reg + - "#iommu-cells" + +additionalProperties: false + +examples: + - | + iommu_disp: iommu@63000000 { + compatible = "sprd,iommu-disp"; + reg = <0x63000000 0x880>; + #iommu-cells = <0>; + }; + +... -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Chunyan Zhang <zhang.lyra@gmail.com> To: Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org, Chunyan Zhang <zhang.lyra@gmail.com>, linux-kernel@vger.kernel.org, Sheng Xu <sheng.xu@unisoc.com>, iommu@lists.linux-foundation.org, Kevin Tang <kevin.tang@unisoc.com>, Baolin Wang <baolin.wang7@gmail.com>, Orson Zhai <orsonzhai@gmail.com> Subject: [RFC PATCH 1/2] dt-bindings: iommu: add bindings for sprd iommu Date: Wed, 23 Dec 2020 19:16:32 +0800 [thread overview] Message-ID: <20201223111633.1711477-1-zhang.lyra@gmail.com> (raw) From: Chunyan Zhang <chunyan.zhang@unisoc.com> This patch only adds bindings to support display iommu, support for others would be added once finished tests with those devices, such as Image codec(jpeg) processor, a few signal processors, including VSP(video), GSP(graphic), ISP(image), and camera CPP, etc. Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> --- .../devicetree/bindings/iommu/sprd,iommu.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/sprd,iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/sprd,iommu.yaml b/Documentation/devicetree/bindings/iommu/sprd,iommu.yaml new file mode 100644 index 000000000000..4d9a578a7cc9 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/sprd,iommu.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright 2020 Unisoc Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/sprd,iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Unisoc IOMMU and Multi-media MMU + +maintainers: + - Chunyan Zhang <zhang.lyra@gmail.com> + +properties: + compatible: + enum: + - sprd,iommu-disp + + reg: + maxItems: 1 + + "#iommu-cells": + const: 0 + description: + Unisoc IOMMUs are all single-master IOMMU devices, therefore no + additional information needs to associate with its master device. + Please refer to the generic bindings document for more details, + Documentation/devicetree/bindings/iommu/iommu.txt + +required: + - compatible + - reg + - "#iommu-cells" + +additionalProperties: false + +examples: + - | + iommu_disp: iommu@63000000 { + compatible = "sprd,iommu-disp"; + reg = <0x63000000 0x880>; + #iommu-cells = <0>; + }; + +... -- 2.25.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next reply other threads:[~2020-12-23 11:17 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-23 11:16 Chunyan Zhang [this message] 2020-12-23 11:16 ` [RFC PATCH 1/2] dt-bindings: iommu: add bindings for sprd iommu Chunyan Zhang 2020-12-23 11:16 ` [RFC PATCH 2/2] iommu: add Unisoc iommu basic driver Chunyan Zhang 2020-12-23 11:16 ` Chunyan Zhang 2021-01-08 2:25 ` [RFC PATCH 1/2] dt-bindings: iommu: add bindings for sprd iommu Rob Herring 2021-01-08 2:25 ` Rob Herring 2021-01-08 11:33 ` Chunyan Zhang 2021-01-08 11:33 ` Chunyan Zhang 2021-01-13 13:47 ` Rob Herring 2021-01-13 13:47 ` Rob Herring 2021-01-21 7:51 ` Chunyan Zhang 2021-01-21 7:51 ` Chunyan Zhang
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