1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 // Copyright (C) 2020 Pengutronix, Ulrich Oelmann <kernel@pengutronix.de>
6 pinctrl-names = "default";
7 pinctrl-0 = <&pinctrl_ecspi4>;
8 cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
12 pinctrl-names = "default";
13 pinctrl-0 = <&pinctrl_touch>;
14 compatible = "ti,tsc2046";
16 spi-max-frequency = <1000000>;
17 interrupts-extended = <&gpio3 19 IRQ_TYPE_LEVEL_LOW>;
18 vcc-supply = <®_3v3>;
19 pendown-gpio = <&gpio3 19 GPIO_ACTIVE_LOW>;
20 ti,x-plate-ohms = /bits/ 16 <850>;
21 ti,y-plate-ohms = /bits/ 16 <295>;
22 ti,pressure-min = /bits/ 16 <2>;
23 ti,pressure-max = /bits/ 16 <1500>;
24 ti,vref-mv = /bits/ 16 <3300>;
25 ti,settle-delay-usec = /bits/ 16 <15>;
26 ti,vref-delay-usecs = /bits/ 16 <0>;
27 ti,penirq-recheck-delay-usecs = /bits/ 16 <100>;
28 ti,debounce-max = /bits/ 16 <100>;
29 ti,debounce-tol = /bits/ 16 <(~0)>;
30 ti,debounce-rep = /bits/ 16 <4>;
31 touchscreen-swapped-x-y;
32 touchscreen-inverted-y;
38 pinctrl_ecspi4: ecspi4grp {
40 MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1
41 MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x000b1
42 MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x000b1
43 /* *no* external pull up */
44 MX6QDL_PAD_EIM_D20__GPIO3_IO20 0x40000058
48 pinctrl_touch: touchgrp {
50 /* external pull up */
51 MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x10040