On Thu, 3 Aug 2017 14:14:15 -0500
Rob Herring [off-list ref] wrote:

On Thu, Jul 27, 2017 at 01:01:36PM +0800, Yong Deng wrote:

quoted

Add binding documentation for Allwinner V3s CSI.

Signed-off-by: Yong Deng <yong.deng-+3dxTMOEIRNWk0Htik3J/w@public.gmane.org>
---
 .../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.

Need to be explicit about how many ports and endpoints and what each one 
represents.

OK.

quoted

+
+Example:
+
+	csi1: csi@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_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

Thanks,
Yong
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