Files
android_kernel_xiaomi_sm8450/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
Jagan Teki a5f50c5013 Input: goodix - add GT5663 CTP support
GT5663 is capacitive touch controller with customized smart
wakeup gestures.

Add support for it by adding compatible and supported chip data.

The chip data on GT5663 is similar to GT1151, like
- config data register has 0x8050 address
- config data register max len is 240
- config data checksum has 16-bit

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-04-03 16:10:43 -07:00

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Device tree bindings for Goodix GT9xx series touchscreen controller
Required properties:
- compatible : Should be "goodix,gt1151"
or "goodix,gt5663"
or "goodix,gt5688"
or "goodix,gt911"
or "goodix,gt9110"
or "goodix,gt912"
or "goodix,gt927"
or "goodix,gt9271"
or "goodix,gt928"
or "goodix,gt967"
- reg : I2C address of the chip. Should be 0x5d or 0x14
- interrupts : Interrupt to which the chip is connected
Optional properties:
- irq-gpios : GPIO pin used for IRQ. The driver uses the
interrupt gpio pin as output to reset the device.
- reset-gpios : GPIO pin used for reset
- AVDD28-supply : Analog power supply regulator on AVDD28 pin
- VDDIO-supply : GPIO power supply regulator on VDDIO pin
- touchscreen-inverted-x
- touchscreen-inverted-y
- touchscreen-size-x
- touchscreen-size-y
- touchscreen-swapped-x-y
The touchscreen-* properties are documented in touchscreen.txt in this
directory.
Example:
i2c@00000000 {
/* ... */
gt928@5d {
compatible = "goodix,gt928";
reg = <0x5d>;
interrupt-parent = <&gpio>;
interrupts = <0 0>;
irq-gpios = <&gpio1 0 0>;
reset-gpios = <&gpio1 1 0>;
};
/* ... */
};