| // SPDX-License-Identifier: (GPL-2.0 OR MIT) |
| // |
| // Copyright (C) 2020 Pengutronix, Ulrich Oelmann <kernel@pengutronix.de> |
| |
| / { |
| touchscreen { |
| compatible = "resistive-adc-touch"; |
| io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>; |
| io-channel-names = "y", "z1", "z2", "x"; |
| touchscreen-min-pressure = <65000>; |
| touchscreen-inverted-y; |
| touchscreen-swapped-x-y; |
| touchscreen-x-plate-ohms = <300>; |
| touchscreen-y-plate-ohms = <800>; |
| }; |
| }; |
| |
| &ecspi4 { |
| pinctrl-names = "default"; |
| pinctrl-0 = <&pinctrl_ecspi4>; |
| cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>; |
| status = "okay"; |
| |
| adc_ts: adc@0 { |
| compatible = "ti,tsc2046e-adc"; |
| reg = <0>; |
| pinctrl-0 = <&pinctrl_touch>; |
| pinctrl-names ="default"; |
| spi-max-frequency = <1000000>; |
| interrupts-extended = <&gpio3 19 IRQ_TYPE_LEVEL_LOW>; |
| #io-channel-cells = <1>; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| channel@1 { |
| reg = <1>; |
| settling-time-us = <700>; |
| oversampling-ratio = <5>; |
| }; |
| |
| channel@3 { |
| reg = <3>; |
| settling-time-us = <700>; |
| oversampling-ratio = <5>; |
| }; |
| |
| channel@4 { |
| reg = <4>; |
| settling-time-us = <700>; |
| oversampling-ratio = <5>; |
| }; |
| |
| channel@5 { |
| reg = <5>; |
| settling-time-us = <700>; |
| oversampling-ratio = <5>; |
| }; |
| }; |
| }; |
| |
| &iomuxc { |
| pinctrl_ecspi4: ecspi4grp { |
| fsl,pins = < |
| MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1 |
| MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x000b1 |
| MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x000b1 |
| /* *no* external pull up */ |
| MX6QDL_PAD_EIM_D20__GPIO3_IO20 0x40000058 |
| >; |
| }; |
| |
| pinctrl_touch: touchgrp { |
| fsl,pins = < |
| /* external pull up */ |
| MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x10040 |
| >; |
| }; |
| }; |
