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media: dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI)
Add binding documentation for Allwinner V3s CSI. Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Yong Deng <yong.deng@magewell.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Documentation/devicetree/bindings/media/sun6i-csi.txt
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Documentation/devicetree/bindings/media/sun6i-csi.txt
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Allwinner V3s Camera Sensor Interface
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-------------------------------------
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Allwinner V3s SoC features a CSI module(CSI1) with parallel interface.
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Required properties:
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- compatible: value must be "allwinner,sun8i-v3s-csi"
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- reg: base address and size of the memory-mapped region.
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- interrupts: interrupt associated to this IP
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- clocks: phandles to the clocks feeding the CSI
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* bus: the CSI interface clock
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* mod: the CSI module clock
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* ram: the CSI DRAM clock
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- clock-names: the clock names mentioned above
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- resets: phandles to the reset line driving the CSI
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The CSI node should contain one 'port' child node with one child 'endpoint'
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node, according to the bindings defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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Endpoint node properties for CSI
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---------------------------------
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See the video-interfaces.txt for a detailed description of these properties.
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- remote-endpoint : (required) a phandle to the bus receiver's endpoint
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node
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- bus-width: : (required) must be 8, 10, 12 or 16
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- pclk-sample : (optional) (default: sample on falling edge)
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- hsync-active : (required; parallel-only)
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- vsync-active : (required; parallel-only)
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Example:
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csi1: csi@1cb4000 {
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compatible = "allwinner,sun8i-v3s-csi";
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reg = <0x01cb4000 0x1000>;
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interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&ccu CLK_BUS_CSI>,
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<&ccu CLK_CSI1_SCLK>,
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<&ccu CLK_DRAM_CSI>;
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clock-names = "bus", "mod", "ram";
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resets = <&ccu RST_BUS_CSI>;
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port {
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/* Parallel bus endpoint */
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csi1_ep: endpoint {
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remote-endpoint = <&adv7611_ep>;
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bus-width = <16>;
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/* If hsync-active/vsync-active are missing,
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embedded BT.656 sync is used */
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hsync-active = <0>; /* Active low */
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vsync-active = <0>; /* Active low */
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pclk-sample = <1>; /* Rising */
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};
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};
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};
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@ -3920,6 +3920,14 @@ M: Jaya Kumar <jayakumar.alsa@gmail.com>
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S: Maintained
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F: sound/pci/cs5535audio/
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CSI DRIVERS FOR ALLWINNER V3s
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M: Yong Deng <yong.deng@magewell.com>
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L: linux-media@vger.kernel.org
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T: git git://linuxtv.org/media_tree.git
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S: Maintained
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F: drivers/media/platform/sunxi/sun6i-csi/
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F: Documentation/devicetree/bindings/media/sun6i-csi.txt
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CW1200 WLAN driver
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M: Solomon Peachy <pizza@shaftnet.org>
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S: Maintained
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