From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jungo Lin Subject: [RFC,V2,03/11] dt-bindings: mt8183: Added camera ISP Pass 1 Date: Fri, 10 May 2019 09:57:52 +0800 Message-ID: <20190510015755.51495-4-jungo.lin@mediatek.com> References: Reply-To: Jungo Lin Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: tfiga@chromium.org, hans.verkuil@cisco.com, laurent.pinchart+renesas@ideasonboard.com, matthias.bgg@gmail.com, mchehab@kernel.org Cc: shik@chromium.org, devicetree@vger.kernel.org, Sean.Cheng@mediatek.com, suleiman@chromium.org, Rynn.Wu@mediatek.com, srv_heupstream@mediatek.com, ryan.yu@mediatek.com, Jerry-ch.Chen@mediatek.com, frankie.chiu@mediatek.com, Jungo Lin , sj.huang@mediatek.com, yuzhao@chromium.org, linux-mediatek@lists.infradead.org, seraph.huang@mediatek.com, zwisler@chromium.org, christie.yu@mediatek.com, frederic.chen@mediatek.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org List-Id: devicetree@vger.kernel.org This patch adds DT binding document for the Pass 1 (P1) unit in Mediatek's camera ISP system. The Pass 1 unit grabs the sensor data out from the sensor interface, applies ISP image effects from tuning data and outputs the image data or statistics data to DRAM. Signed-off-by: Jungo Lin --- .../bindings/media/mediatek,camisp.txt | 92 +++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/mediatek,camisp.txt diff --git a/Documentation/devicetree/bindings/media/mediatek,camisp.txt b/Documentation/devicetree/bindings/media/mediatek,camisp.txt new file mode 100644 index 000000000000..759e55a5dfac --- /dev/null +++ b/Documentation/devicetree/bindings/media/mediatek,camisp.txt @@ -0,0 +1,92 @@ +* Mediatek Image Signal Processor Pass 1 (ISP P1) + +The Pass 1 unit of Mediatek's camera ISP system grabs the sensor data out +from the sensor interface, applies ISP effects from tuning data and outputs +the image data and statistics data to DRAM. Furthermore, Pass 1 unit has +the ability to output two different resolutions frames at the same time to +increase the performance of the camera application. + +Required properties: +- compatible: Must be "mediatek,mt8183-camisp" for MT8183. +- reg: Must contain an entry for each entry in reg-names. +- interrupts: interrupt number to the cpu. +- iommus: shall point to the respective IOMMU block with master port + as argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + for details. +- power-domains : a phandle to the power domain of this local arbiter. +- clocks: device clocks, see + Documentation/devicetree/bindings/clock/clock-bindings.txt for details. +- clock-names: must be "CAMSYS_CAM_CGPDN" and "CAMSYS_CAMTG_CGPDN". +- mediatek,larb: must contain the local arbiters in the current SOCs, see + Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt + for details. +- mediatek,scp : the node of system control processor (SCP), see + Documentation/devicetree/bindings/remoteproc/mtk,scp.txt for details. +- memory-region : the reserved shared memory region between Pass 1 unit and + system control processor. + +Example: +SoC specific DT entry: + + camisp: camisp@1a000000 { + compatible = "mediatek,mt8183-camisp", "syscon"; + reg = <0 0x1a000000 0 0x1000>, + <0 0x1a003000 0 0x1000>, + <0 0x1a004000 0 0x2000>, + <0 0x1a006000 0 0x2000>; + reg-names = "camisp", + "cam1", + "cam2", + "cam3"; + interrupts = , + , + ; + interrupt-names = "cam1", + "cam2", + "cam3"; + iommus = <&iommu M4U_PORT_CAM_LSCI0>, + <&iommu M4U_PORT_CAM_LSCI1>, + <&iommu M4U_PORT_CAM_BPCI>; + #clock-cells = <1>; + power-domains = <&scpsys MT8183_POWER_DOMAIN_CAM>; + /* Camera CCF */ + clocks = <&camsys CLK_CAM_CAM>, + <&camsys CLK_CAM_CAMTG>; + clock-names = "CAMSYS_CAM_CGPDN", + "CAMSYS_CAMTG_CGPDN"; + mediatek,larb = <&larb3>, + <&larb6>; + mediatek,scp = <&scp>; + memory-region = <&cam_mem_reserved>; + }; + +Reserved memory specific DT entry (see reserved memory binding for more +information): + +Example: +SoC specific DT entry: + + cam_mem_reserved: cam_mem_region { + compatible = "mediatek,reserve-memory-cam-smem"; + no-map; + size = <0 0x01400000>; / *20 MB share mem size */ + alignment = <0 0x1000>; + alloc-ranges = <0 0x40000000 0 0x10000000>; + }; + +Mediatek ISP P1 supports a single port node with MIPI-CSI2 bus. It should +contain one 'port' child node with child 'endpoint' node. Please refer to +the bindings defined in Documentation/devicetree/bindings/media/video-interfaces.txt +and Documentation/devicetree/bindings/media/mediatek-seninf.txt. + +Example: +Board specific DT entry: + + &camisp { + port@0 { + seninf_0: endpoint { + remote-endpoint = <&seninf_core>; + }; + }; + }; + -- 2.18.0