[PATCH RFC 2/2] dt-bindings: add binding documentation for Allwinner CSI
From: robh@kernel.org (Rob Herring)
Date: 2017-06-29 21:20:08
Also in:
linux-devicetree, linux-media, lkml
On Tue, Jun 27, 2017 at 07:07:34PM +0800, Yong Deng wrote:
Add binding documentation for Allwinner CSI.
For the subject: dt-bindings: media: Add Allwinner Camera Sensor Interface (CSI) "binding documentation" is redundant.
quoted hunk ↗ jump to hunk
Signed-off-by: Yong Deng <yong.deng@magewell.com> --- .../devicetree/bindings/media/sunxi-csi.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/sunxi-csi.txtdiff --git a/Documentation/devicetree/bindings/media/sunxi-csi.txt b/Documentation/devicetree/bindings/media/sunxi-csi.txt new file mode 100644 index 0000000..770be0e --- /dev/null +++ b/Documentation/devicetree/bindings/media/sunxi-csi.txt@@ -0,0 +1,51 @@ +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. The + first port should be the input endpoints, the second one the outputs
Is there more than one endpoint for each port? If so, need to define that numbering too.
+
+Example:
+
+ csi1: csi at 01cb4000 {
+ 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_0: endpoint at 0 {
+ reg = <0>;Don't need this and everything associated with it for a single endpoint.
+ remote = <&adv7611_1>; + 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html