| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | // SPDX-License-Identifier: (GPL-2.0 OR MIT) |
| 2 | // |
| 3 | // Copyright (C) 2020 Pengutronix, Ulrich Oelmann <kernel@pengutronix.de> |
| 4 | |
| 5 | / { |
| 6 | touchscreen { |
| 7 | compatible = "resistive-adc-touch"; |
| 8 | io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>; |
| 9 | io-channel-names = "y", "z1", "z2", "x"; |
| 10 | touchscreen-min-pressure = <65000>; |
| 11 | touchscreen-inverted-y; |
| 12 | touchscreen-swapped-x-y; |
| 13 | touchscreen-x-plate-ohms = <300>; |
| 14 | touchscreen-y-plate-ohms = <800>; |
| 15 | }; |
| 16 | }; |
| 17 | |
| 18 | &ecspi4 { |
| 19 | pinctrl-names = "default"; |
| 20 | pinctrl-0 = <&pinctrl_ecspi4>; |
| 21 | cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>; |
| 22 | status = "okay"; |
| 23 | |
| 24 | adc_ts: adc@0 { |
| 25 | compatible = "ti,tsc2046e-adc"; |
| 26 | reg = <0>; |
| 27 | pinctrl-0 = <&pinctrl_touch>; |
| 28 | pinctrl-names ="default"; |
| 29 | spi-max-frequency = <1000000>; |
| 30 | interrupts-extended = <&gpio3 19 IRQ_TYPE_LEVEL_LOW>; |
| 31 | #io-channel-cells = <1>; |
| 32 | |
| 33 | #address-cells = <1>; |
| 34 | #size-cells = <0>; |
| 35 | |
| 36 | channel@1 { |
| 37 | reg = <1>; |
| 38 | settling-time-us = <700>; |
| 39 | oversampling-ratio = <5>; |
| 40 | }; |
| 41 | |
| 42 | channel@3 { |
| 43 | reg = <3>; |
| 44 | settling-time-us = <700>; |
| 45 | oversampling-ratio = <5>; |
| 46 | }; |
| 47 | |
| 48 | channel@4 { |
| 49 | reg = <4>; |
| 50 | settling-time-us = <700>; |
| 51 | oversampling-ratio = <5>; |
| 52 | }; |
| 53 | |
| 54 | channel@5 { |
| 55 | reg = <5>; |
| 56 | settling-time-us = <700>; |
| 57 | oversampling-ratio = <5>; |
| 58 | }; |
| 59 | }; |
| 60 | }; |
| 61 | |
| 62 | &iomuxc { |
| 63 | pinctrl_ecspi4: ecspi4grp { |
| 64 | fsl,pins = < |
| 65 | MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1 |
| 66 | MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x000b1 |
| 67 | MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x000b1 |
| 68 | /* *no* external pull up */ |
| 69 | MX6QDL_PAD_EIM_D20__GPIO3_IO20 0x40000058 |
| 70 | >; |
| 71 | }; |
| 72 | |
| 73 | pinctrl_touch: touchgrp { |
| 74 | fsl,pins = < |
| 75 | /* external pull up */ |
| 76 | MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x10040 |
| 77 | >; |
| 78 | }; |
| 79 | }; |