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Date: Thu, 27 Jul 2017 11:51:13 +0800 From: Yong Deng <yong.deng@...ewell.com> To: Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Maxime Ripard <maxime.ripard@...e-electrons.com>, Chen-Yu Tsai <wens@...e.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "David S. Miller" <davem@...emloft.net>, Hans Verkuil <hverkuil@...all.nl>, Arnd Bergmann <arnd@...db.de>, Hugues Fruchet <hugues.fruchet@...com>, Yannick Fertre <yannick.fertre@...com>, Philipp Zabel <p.zabel@...gutronix.de>, Benoit Parrot <bparrot@...com>, Benjamin Gaignard <benjamin.gaignard@...aro.org>, Jean-Christophe Trotin <jean-christophe.trotin@...com>, Ramesh Shanmugasundaram <ramesh.shanmugasundaram@...renesas.com>, Minghsiu Tsai <minghsiu.tsai@...iatek.com>, Krzysztof Kozlowski <krzk@...nel.org>, Robert Jarzmik <robert.jarzmik@...e.fr>, linux-media@...r.kernel.org, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com Cc: Yong Deng <yong.deng@...ewell.com> Subject: [PATCH v2 2/3] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Add binding documentation for Allwinner V3s CSI. Signed-off-by: Yong Deng <yong.deng@...ewell.com> --- .../devicetree/bindings/media/sun6i-csi.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/sun6i-csi.txt diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt new file mode 100644 index 0000000..f8d83f6 --- /dev/null +++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt @@ -0,0 +1,49 @@ +Allwinner V3s Camera Sensor Interface +------------------------------ + +Required properties: + - compatible: value must be "allwinner,sun8i-v3s-csi" + - reg: base address and size of the memory-mapped region. + - interrupts: interrupt associated to this IP + - clocks: phandles to the clocks feeding the CSI + * ahb: the CSI interface clock + * mod: the CSI module clock + * ram: the CSI DRAM clock + - clock-names: the clock names mentioned above + - resets: phandles to the reset line driving the CSI + +- ports: A ports node with endpoint definitions as defined in + Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example: + + csi1: csi@...b4000 { + compatible = "allwinner,sun8i-v3s-csi"; + reg = <0x01cb4000 0x1000>; + interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_CSI>, + <&ccu CLK_CSI1_SCLK>, + <&ccu CLK_DRAM_CSI>; + clock-names = "ahb", "mod", "ram"; + resets = <&ccu RST_BUS_CSI>; + + port { + #address-cells = <1>; + #size-cells = <0>; + + /* Parallel bus endpoint */ + csi1_ep: endpoint { + remote-endpoint = <&adv7611_ep>; + bus-width = <16>; + data-shift = <0>; + + /* If hsync-active/vsync-active are missing, + embedded BT.656 sync is used */ + hsync-active = <0>; /* Active low */ + vsync-active = <0>; /* Active low */ + data-active = <1>; /* Active high */ + pclk-sample = <1>; /* Rising */ + }; + }; + }; + -- 1.8.3.1
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