791d3ef2e1
'interrupt-parent' is often documented as part of define bindings, but it is really outside the scope of a device binding. It's never required in a given node as it is often inherited from a parent node. Or it can be implicit if a parent node is an 'interrupt-controller' node. So remove it from all the binding files. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
37 lines
961 B
Plaintext
37 lines
961 B
Plaintext
* STMicroelectronics SAS. ST NCI NFC Controller
|
|
|
|
Required properties:
|
|
- compatible: Should be "st,st21nfcb-spi"
|
|
- spi-max-frequency: Maximum SPI frequency (<= 4000000).
|
|
- interrupts: GPIO interrupt to which the chip is connected
|
|
- reset-gpios: Output GPIO pin used to reset the ST21NFCB
|
|
|
|
Optional SoC Specific Properties:
|
|
- pinctrl-names: Contains only one value - "default".
|
|
- pintctrl-0: Specifies the pin control groups used for this controller.
|
|
- ese-present: Specifies that an ese is physically connected to the nfc
|
|
controller.
|
|
- uicc-present: Specifies that the uicc swp signal can be physically
|
|
connected to the nfc controller.
|
|
|
|
Example (for ARM-based BeagleBoard xM with ST21NFCB on SPI4):
|
|
|
|
&mcspi4 {
|
|
|
|
|
|
st21nfcb: st21nfcb@0 {
|
|
|
|
compatible = "st,st21nfcb-spi";
|
|
|
|
clock-frequency = <4000000>;
|
|
|
|
interrupt-parent = <&gpio5>;
|
|
interrupts = <2 IRQ_TYPE_EDGE_RISING>;
|
|
|
|
reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
|
|
|
|
ese-present;
|
|
uicc-present;
|
|
};
|
|
};
|