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authorSakari Ailus <sakari.ailus@iki.fi>2014-11-06 22:16:13 +0100
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-12-23 14:34:38 +0100
commita2cec3c0199ab4d7c0d83dee7fc69bd22eef7e12 (patch)
tree8a85cc1de211ebe3c3acc28957fb3db89925e1d2 /Documentation/devicetree/bindings/media
parent[media] of: v4l: Document link-frequencies property in video-interfaces.txt (diff)
downloadlinux-a2cec3c0199ab4d7c0d83dee7fc69bd22eef7e12.tar.xz
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[media] of: smiapp: Add documentation
Document the smiapp device tree properties. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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+SMIA/SMIA++ sensor
+
+SMIA (Standard Mobile Imaging Architecture) is an image sensor standard
+defined jointly by Nokia and ST. SMIA++, defined by Nokia, is an extension
+of that. These definitions are valid for both types of sensors.
+
+More detailed documentation can be found in
+Documentation/devicetree/bindings/media/video-interfaces.txt .
+
+
+Mandatory properties
+--------------------
+
+- compatible: "nokia,smia"
+- reg: I2C address (0x10, or an alternative address)
+- vana-supply: Analogue voltage supply (VANA), typically 2,8 volts (sensor
+ dependent).
+- clocks: External clock to the sensor
+- clock-frequency: Frequency of the external clock to the sensor
+- link-frequencies: List of allowed data link frequencies. An array of
+ 64-bit elements.
+
+
+Optional properties
+-------------------
+
+- nokia,nvm-size: The size of the NVM, in bytes. If the size is not given,
+ the NVM contents will not be read.
+- reset-gpios: XSHUTDOWN GPIO
+
+
+Endpoint node mandatory properties
+----------------------------------
+
+- clock-lanes: <0>
+- data-lanes: <1..n>
+- remote-endpoint: A phandle to the bus receiver's endpoint node.
+
+
+Example
+-------
+
+&i2c2 {
+ clock-frequency = <400000>;
+
+ smiapp_1: camera@10 {
+ compatible = "nokia,smia";
+ reg = <0x10>;
+ reset-gpios = <&gpio3 20 0>;
+ vana-supply = <&vaux3>;
+ clocks = <&omap3_isp 0>;
+ clock-frequency = <9600000>;
+ nokia,nvm-size = <512>; /* 8 * 64 */
+ link-frequencies = /bits/ 64 <199200000 210000000 499200000>;
+ port {
+ smiapp_1_1: endpoint {
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ remote-endpoint = <&csi2a_ep>;
+ };
+ };
+ };
+};