From: Frederic Chen <frederic.chen@mediatek.com> To: <hans.verkuil@cisco.com>, <laurent.pinchart+renesas@ideasonboard.com>, <tfiga@chromium.org>, <matthias.bgg@gmail.com>, <mchehab@kernel.org> Cc: Sean.Cheng@mediatek.com, Rynn.Wu@mediatek.com, srv_heupstream@mediatek.com, holmes.chiou@mediatek.com, Jerry-ch.Chen@mediatek.com, jungo.lin@mediatek.com, sj.huang@mediatek.com, christie.yu@mediatek.com, linux-mediatek@lists.infradead.org, frederic.chen@mediatek.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Subject: [RFC PATCH V0 3/7] [media] dt-bindings: mt8183: Added DIP-SMEM dt-bindings Date: Fri, 1 Feb 2019 19:21:27 +0800 Message-ID: <1549020091-42064-4-git-send-email-frederic.chen@mediatek.com> (raw) In-Reply-To: <1549020091-42064-1-git-send-email-frederic.chen@mediatek.com> This patch adds the DT binding documentation for the shared memory between DIP (Digital Image Processing) unit of the camera ISP system and the co-processor in Mediatek SoCs. Signed-off-by: Frederic Chen <frederic.chen@mediatek.com> --- .../bindings/media/mediatek,dip_smem.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/mediatek,dip_smem.txt diff --git a/Documentation/devicetree/bindings/media/mediatek,dip_smem.txt b/Documentation/devicetree/bindings/media/mediatek,dip_smem.txt new file mode 100644 index 0000000..5533721 --- /dev/null +++ b/Documentation/devicetree/bindings/media/mediatek,dip_smem.txt @@ -0,0 +1,29 @@ +Mediatek ISP Shared Memory Device + +Mediatek ISP Shared Memory Device is used to manage shared memory +among CPU, ISP IPs and coprocessor. It is associated with a reserved +memory region (Please see Documentation\devicetree\bindings\ +reserved-memory\mediatek,reserve-memory-isp_smem.txt) and +and provide the context to allocate memory with dma addresses. + +Required properties: +- compatible: Should be "mediatek,isp_smem" + +- iommus: should point to the respective IOMMU block with master port + as argument. Please set the ports which may be accessed + through the common path. You can see + Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + for the detail. + +- mediatek,larb: must contain the local arbiters in the current Socs. + Please set the larb of camsys for Pass 1 and imgsys for DIP, or both + if you are using all the camera function. You can see + Documentation/devicetree/bindings/memory-controllers/ + mediatek,smi-larb.txt for the detail. + +Example: + isp_smem: isp_smem { + compatible = "mediatek,isp_smem"; + mediatek,larb = <&larb5>; + iommus = <&iommu M4U_PORT_CAM_IMGI>; + }; -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply index Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-02-01 11:21 [RFC PATCH V0 0/7] media: platform: Add support for Digital Image Processing (DIP) on mt8183 SoC Frederic Chen 2019-02-01 11:21 ` [RFC PATCH V0 1/7] [media] dt-bindings: mt8183: Add binding for DIP shared memory Frederic Chen 2019-02-09 15:59 ` Sakari Ailus 2019-02-09 18:17 ` Laurent Pinchart 2019-02-12 9:37 ` Frederic Chen 2019-02-13 3:41 ` Tomasz Figa 2019-02-01 11:21 ` [RFC PATCH V0 2/7] dts: arm64: mt8183: Add DIP shared memory node Frederic Chen 2019-02-01 11:21 ` Frederic Chen [this message] 2019-02-09 15:59 ` [RFC PATCH V0 3/7] [media] dt-bindings: mt8183: Added DIP-SMEM dt-bindings Sakari Ailus 2019-02-09 18:20 ` Laurent Pinchart 2019-02-12 9:50 ` Frederic Chen 2019-02-01 11:21 ` [RFC PATCH V0 4/7] [media] dt-bindings: mt8183: Added DIP dt-bindings Frederic Chen 2019-02-01 11:21 ` [RFC PATCH V0 5/7] dts: arm64: mt8183: Add DIP nodes Frederic Chen 2019-02-01 11:21 ` [RFC PATCH V0 6/7] media: platform: Add Mediatek DIP driver KConfig Frederic Chen [not found] ` <1549020091-42064-8-git-send-email-frederic.chen@mediatek.com> 2019-02-07 19:08 ` [RFC PATCH V0 7/7] [media] platform: mtk-isp: Add Mediatek DIP driver Brian Norris [not found] ` <1550756198.11724.86.camel@mtksdccf07> 2019-02-23 6:18 ` Frederic Chen 2019-02-28 3:24 ` Brian Norris 2019-03-06 17:07 ` Frederic Chen 2019-03-14 8:46 ` [RFC PATCH V0 0/7] media: platform: Add support for Digital Image Processing (DIP) on mt8183 SoC Hans Verkuil
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