input/touchscreen/cypress%2Ccy8ctma340.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/touchscreen/cypress,cy8ctma340.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Cypress CY8CTMA340 series touchscreen controller
14   - Javier Martinez Canillas <javier@dowhile0.org>
15   - Linus Walleij <linus.walleij@linaro.org>
18   - $ref: touchscreen.yaml#
22     pattern: "^touchscreen(@.*)?$"
26       - const: cypress,cy8ctma340
27       - const: cypress,cy8ctst341
28       - const: cypress,cyttsp-spi
31       - const: cypress,cyttsp-i2c
39   clock-frequency:
45   spi-max-frequency:
57   vcpin-supply:
60   vdd-supply:
63   reset-gpios:
64     description: Reset line for the touchscreen, should be tagged
67   bootloader-key:
68     description: the 8-byte bootloader key that is required to switch
70     $ref: /schemas/types.yaml#/definitions/uint8-array
74   touchscreen-size-x: true
75   touchscreen-size-y: true
76   touchscreen-fuzz-x: true
77   touchscreen-fuzz-y: true
79   active-distance:
86   active-interval-ms:
92   lowpower-interval-ms:
94       scanning/processing cycles when the chip is in low-power mode
98   touch-timeout-ms:
100       touches are detected before entering low-power mode
104   use-handshake:
105     description: enable register-based handshake (boolean). This should only
114   - compatible
115   - reg
116   - interrupts
117   - bootloader-key
118   - touchscreen-size-x
119   - touchscreen-size-y
122   - |
123     #include <dt-bindings/interrupt-controller/irq.h>
124     #include <dt-bindings/gpio/gpio.h>
126       #address-cells = <1>;
127       #size-cells = <0>;
128       num-cs = <1>;
129       cs-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
131       touchscreen@0 {
134         interrupt-parent = <&gpio>;
136         reset-gpios = <&gpio 21 GPIO_ACTIVE_LOW>;
137         vdd-supply = <&ldo_aux1_reg>;
138         vcpin-supply = <&ldo_aux2_reg>;
139         bootloader-key = /bits/ 8 <0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07>;
140         touchscreen-size-x = <480>;
141         touchscreen-size-y = <800>;
142         active-interval-ms = <0>;
143         touch-timeout-ms = <255>;
144         lowpower-interval-ms = <10>;