linux/Documentation/devicetree/bindings/input/touchscreen/sis_i2c.txt
Rob Herring 791d3ef2e1 dt-bindings: remove 'interrupt-parent' from bindings
'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>
2018-07-25 14:09:39 -06:00

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* SiS I2C Multiple Touch Controller
Required properties:
- compatible: must be "sis,9200-ts"
- reg: i2c slave address
- interrupts: touch controller interrupt (see interrupt
binding [0])
Optional properties:
- pinctrl-names: should be "default" (see pinctrl binding [1]).
- pinctrl-0: a phandle pointing to the pin settings for the
device (see pinctrl binding [1]).
- attn-gpios: the gpio pin used as attention line
- reset-gpios: the gpio pin used to reset the controller
- wakeup-source: touchscreen can be used as a wakeup source
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
Example:
sis9255@5c {
compatible = "sis,9200-ts";
reg = <0x5c>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sis>;
interrupt-parent = <&gpio3>;
interrupts = <19 IRQ_TYPE_EDGE_FALLING>;
irq-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;
reset-gpios = <&gpio2 30 GPIO_ACTIVE_LOW>;
};