dt-bindings: add bindings for i2c-pca-platform
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
parent
8064c61698
commit
e00ad7ef68
29
Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
Normal file
29
Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
Normal file
|
@ -0,0 +1,29 @@
|
|||
* NXP PCA PCA9564/PCA9665 I2C controller
|
||||
|
||||
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
|
||||
- interrupt-parent : the phandle for the interrupt controller.
|
||||
If an interrupt is not specified polling will be used.
|
||||
- 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>;
|
||||
};
|
Loading…
Reference in a new issue