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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
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treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/media/atmel-isi.txt
parentInitial commit. (diff)
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Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+Atmel Image Sensor Interface (ISI)
+----------------------------------
+
+Required properties for ISI:
+- compatible: must be "atmel,at91sam9g45-isi" or "microchip,sam9x60-isi".
+- reg: physical base address and length of the registers set for the device.
+- interrupts: should contain IRQ line for the ISI.
+- clocks: list of clock specifiers, corresponding to entries in the clock-names
+ property; please refer to clock-bindings.txt.
+- clock-names: required elements: "isi_clk".
+- pinctrl-names, pinctrl-0: please refer to pinctrl-bindings.txt.
+
+ISI supports a single port node with parallel bus. It shall contain one
+'port' child node with child 'endpoint' node. Please refer to the bindings
+defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Endpoint node properties
+------------------------
+
+- bus-width: <8> or <10> (mandatory)
+- hsync-active (default: active high)
+- vsync-active (default: active high)
+- pclk-sample (default: sample on falling edge)
+- remote-endpoint: A phandle to the bus receiver's endpoint node (mandatory).
+
+Example:
+
+isi: isi@f0034000 {
+ compatible = "atmel,at91sam9g45-isi";
+ reg = <0xf0034000 0x4000>;
+ interrupts = <37 IRQ_TYPE_LEVEL_HIGH 5>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_isi_data_0_7>;
+ clocks = <&isi_clk>;
+ clock-names = "isi_clk";
+ port {
+ isi_0: endpoint {
+ remote-endpoint = <&ov2640_0>;
+ bus-width = <8>;
+ vsync-active = <1>;
+ hsync-active = <1>;
+ };
+ };
+};
+
+i2c1: i2c@f0018000 {
+ ov2640: camera@30 {
+ compatible = "ovti,ov2640";
+ reg = <0x30>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pck0_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>;
+ resetb-gpios = <&pioE 11 GPIO_ACTIVE_LOW>;
+ pwdn-gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;
+ clocks = <&pck0>;
+ clock-names = "xvclk";
+ assigned-clocks = <&pck0>;
+ assigned-clock-rates = <25000000>;
+
+ port {
+ ov2640_0: endpoint {
+ remote-endpoint = <&isi_0>;
+ bus-width = <8>;
+ };
+ };
+ };
+};