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Date: Wed, 3 Jul 2019 16:09:06 -0300 From: Helen Koike <helen.koike@...labora.com> To: linux-rockchip@...ts.infradead.org Cc: devicetree@...r.kernel.org, eddie.cai.linux@...il.com, mchehab@...nel.org, heiko@...ech.de, jacob2.chen@...k-chips.com, jeffy.chen@...k-chips.com, zyc@...k-chips.com, linux-kernel@...r.kernel.org, tfiga@...omium.org, hans.verkuil@...co.com, laurent.pinchart@...asonboard.com, sakari.ailus@...ux.intel.com, kernel@...labora.com, ezequiel@...labora.com, linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, zhengsq@...k-chips.com, Rob Herring <robh@...nel.org>, Helen Koike <helen.koike@...labora.com>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com> Subject: [PATCH v7 10/14] dt-bindings: Document the Rockchip ISP1 bindings From: Jacob Chen <jacob2.chen@...k-chips.com> Add DT bindings documentation for Rockchip ISP1 Signed-off-by: Jacob Chen <jacob2.chen@...k-chips.com> Reviewed-by: Rob Herring <robh@...nel.org> [update for upstream] Signed-off-by: Helen Koike <helen.koike@...labora.com> --- Changes in v7: - update document with new design and tested example .../bindings/media/rockchip-isp1.txt | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/rockchip-isp1.txt diff --git a/Documentation/devicetree/bindings/media/rockchip-isp1.txt b/Documentation/devicetree/bindings/media/rockchip-isp1.txt new file mode 100644 index 000000000000..a97fef0f189f --- /dev/null +++ b/Documentation/devicetree/bindings/media/rockchip-isp1.txt @@ -0,0 +1,71 @@ +Rockchip SoC Image Signal Processing unit v1 +---------------------------------------------- + +Rockchip ISP1 is the Camera interface for the Rockchip series of SoCs +which contains image processing, scaling, and compression funcitons. + +Required properties: +- compatible: value should be one of the following + "rockchip,rk3288-cif-isp"; + "rockchip,rk3399-cif-isp"; +- reg : offset and length of the register set for the device. +- interrupts: should contain ISP interrupt. +- clocks: phandle to the required clocks. +- clock-names: required clock name. +- iommus: required a iommu node. +- phys: the phandle for the PHY port +- phy-names: must contain "dphy" + +port node +------------------- + +The device node should contain one 'ports' child node, with children 'port' +with child 'endpoint'. +nodes, according to the bindings defined in Documentation/devicetree/bindings/ +media/video-interfaces.txt. + +- endpoint(mipi): + - remote-endpoint: Connecting to Rockchip MIPI-DPHY, + which is defined in rockchip-mipi-dphy.txt. + +The port node must contain at least one endpoint, either parallel or mipi. +It could have multiple endpoints, but please note the hardware don't support +two sensors work at a time, they are supposed to work asynchronously. + +Device node example +------------------- + + isp0: isp0@...10000 { + compatible = "rockchip,rk3399-cif-isp"; + reg = <0x0 0xff910000 0x0 0x4000>; + interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH 0>; + clocks = <&cru SCLK_ISP0>, + <&cru ACLK_ISP0>, <&cru ACLK_ISP0_WRAPPER>, + <&cru HCLK_ISP0>, <&cru HCLK_ISP0_WRAPPER>; + clock-names = "clk_isp", + "aclk_isp", "aclk_isp_wrap", + "hclk_isp", "hclk_isp_wrap"; + power-domains = <&power RK3399_PD_ISP0>; + iommus = <&isp0_mmu>; + phys = <&dphy>; + phy-names = "dphy"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + mipi_in_wcam: endpoint@0 { + reg = <0>; + remote-endpoint = <&wcam_out>; + data-lanes = <1 2>; + }; + + mipi_in_ucam: endpoint@1 { + reg = <1>; + remote-endpoint = <&ucam_out>; + data-lanes = <1>; + }; + }; + }; + }; -- 2.20.1
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