Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt

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Linux kernel
Corpus path
Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
Extension
.txt
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838 bytes
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28
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: documentation
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

The PCA9564/PCA9665 serves as an interface between most standard
parallel-bus microcontrollers/microprocessors and the serial I2C-bus
and allows the parallel bus system to communicate bi-directionally
with the I2C-bus.

Required properties :

 - reg : Offset and length of the register set for the device
 - compatible : one of "nxp,pca9564" or "nxp,pca9665"

Optional properties
 - interrupts : the interrupt number
 - reset-gpios : gpio specifier for gpio connected to RESET_N pin. As the line
   is active low, it should be marked GPIO_ACTIVE_LOW.
 - clock-frequency : I2C bus frequency.

Example:
	i2c0: i2c@80000 {
		compatible = "nxp,pca9564";
		#address-cells = <1>;
		#size-cells = <0>;
		reg = <0x80000 0x4>;
		reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
		clock-frequency = <100000>;
	};

Annotation

Implementation Notes