1 // SPDX-License-Identifier: (GPL-2.0 OR MIT) 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 // 2 //
3 // Copyright (C) 2020 Pengutronix, Ulrich Oelm< 3 // Copyright (C) 2020 Pengutronix, Ulrich Oelmann <kernel@pengutronix.de>
4 4
5 / { 5 / {
6 touchscreen { 6 touchscreen {
7 compatible = "resistive-adc-to 7 compatible = "resistive-adc-touch";
8 io-channels = <&adc_ts 1>, <&a 8 io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>;
9 io-channel-names = "y", "z1", 9 io-channel-names = "y", "z1", "z2", "x";
10 touchscreen-min-pressure = <65 10 touchscreen-min-pressure = <65000>;
11 touchscreen-inverted-y; 11 touchscreen-inverted-y;
12 touchscreen-swapped-x-y; 12 touchscreen-swapped-x-y;
13 touchscreen-x-plate-ohms = <30 13 touchscreen-x-plate-ohms = <300>;
14 touchscreen-y-plate-ohms = <80 14 touchscreen-y-plate-ohms = <800>;
15 }; 15 };
16 }; 16 };
17 17
18 &ecspi4 { 18 &ecspi4 {
19 pinctrl-names = "default"; 19 pinctrl-names = "default";
20 pinctrl-0 = <&pinctrl_ecspi4>; 20 pinctrl-0 = <&pinctrl_ecspi4>;
21 cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW> 21 cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
22 status = "okay"; 22 status = "okay";
23 23
24 adc_ts: adc@0 { 24 adc_ts: adc@0 {
25 compatible = "ti,tsc2046e-adc" 25 compatible = "ti,tsc2046e-adc";
26 reg = <0>; 26 reg = <0>;
27 pinctrl-0 = <&pinctrl_touch>; 27 pinctrl-0 = <&pinctrl_touch>;
28 pinctrl-names = "default"; 28 pinctrl-names = "default";
29 spi-max-frequency = <1000000>; 29 spi-max-frequency = <1000000>;
30 interrupts-extended = <&gpio3 30 interrupts-extended = <&gpio3 19 IRQ_TYPE_LEVEL_LOW>;
31 #io-channel-cells = <1>; 31 #io-channel-cells = <1>;
32 32
33 #address-cells = <1>; 33 #address-cells = <1>;
34 #size-cells = <0>; 34 #size-cells = <0>;
35 35
36 channel@1 { 36 channel@1 {
37 reg = <1>; 37 reg = <1>;
38 settling-time-us = <70 38 settling-time-us = <700>;
39 oversampling-ratio = < 39 oversampling-ratio = <5>;
40 }; 40 };
41 41
42 channel@3 { 42 channel@3 {
43 reg = <3>; 43 reg = <3>;
44 settling-time-us = <70 44 settling-time-us = <700>;
45 oversampling-ratio = < 45 oversampling-ratio = <5>;
46 }; 46 };
47 47
48 channel@4 { 48 channel@4 {
49 reg = <4>; 49 reg = <4>;
50 settling-time-us = <70 50 settling-time-us = <700>;
51 oversampling-ratio = < 51 oversampling-ratio = <5>;
52 }; 52 };
53 53
54 channel@5 { 54 channel@5 {
55 reg = <5>; 55 reg = <5>;
56 settling-time-us = <70 56 settling-time-us = <700>;
57 oversampling-ratio = < 57 oversampling-ratio = <5>;
58 }; 58 };
59 }; 59 };
60 }; 60 };
61 61
62 &iomuxc { 62 &iomuxc {
63 pinctrl_ecspi4: ecspi4grp { 63 pinctrl_ecspi4: ecspi4grp {
64 fsl,pins = < 64 fsl,pins = <
65 MX6QDL_PAD_EIM_D28__EC 65 MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1
66 MX6QDL_PAD_EIM_D22__EC 66 MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x000b1
67 MX6QDL_PAD_EIM_D21__EC 67 MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x000b1
68 /* *no* external pull 68 /* *no* external pull up */
69 MX6QDL_PAD_EIM_D20__GP 69 MX6QDL_PAD_EIM_D20__GPIO3_IO20 0x40000058
70 >; 70 >;
71 }; 71 };
72 72
73 pinctrl_touch: touchgrp { 73 pinctrl_touch: touchgrp {
74 fsl,pins = < 74 fsl,pins = <
75 /* external pull up */ 75 /* external pull up */
76 MX6QDL_PAD_EIM_D19__GP 76 MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x10040
77 >; 77 >;
78 }; 78 };
79 }; 79 };
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