tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1* GSL 1680 touchscreen controller
2
3Required properties:
4- compatible : Must be one of the following, depending on the model:
5 "silead,gsl1680"
6 "silead,gsl1688"
7 "silead,gsl3670"
8 "silead,gsl3675"
9 "silead,gsl3692"
10- reg : I2C slave address of the chip (0x40)
11- interrupts : interrupt specification for the gsl1680 interrupt
12- power-gpios : Specification for the pin connected to the gsl1680's
13 shutdown input. This needs to be driven high to take the
14 gsl1680 out of its low power state
15- touchscreen-size-x : See touchscreen.txt
16- touchscreen-size-y : See touchscreen.txt
17
18Optional properties:
19- firmware-name : File basename (string) for board specific firmware
20- touchscreen-inverted-x : See touchscreen.txt
21- touchscreen-inverted-y : See touchscreen.txt
22- touchscreen-swapped-x-y : See touchscreen.txt
23- silead,max-fingers : maximum number of fingers the touchscreen can detect
24- silead,home-button : Boolean, set to true on devices which have a
25 capacitive home-button build into the touchscreen
26- vddio-supply : regulator phandle for controller VDDIO
27- avdd-supply : regulator phandle for controller AVDD
28
29Example:
30
31i2c@00000000 {
32 gsl1680: touchscreen@40 {
33 compatible = "silead,gsl1680";
34 reg = <0x40>;
35 interrupt-parent = <&pio>;
36 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>;
37 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
38 touchscreen-size-x = <480>;
39 touchscreen-size-y = <800>;
40 touchscreen-inverted-x;
41 touchscreen-swapped-x-y;
42 silead,max-fingers = <5>;
43 };
44};