97 lines
2.9 KiB
Text
97 lines
2.9 KiB
Text
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/* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/* This file is used for 8550 device which use st nfc chipst */
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&qupv3_se0_i2c {
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status = "ok";
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qcom,clk-freq-out = <1000000>;
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#address-cells = <1>;
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#size-cells = <0>;
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st21nfc@8 {
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compatible = "st,st21nfc";
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reg = <0x8>;
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st,irq_gpio = <&tlmm 55 0x00>;
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st,reset_gpio = <&tlmm 23 0x00>;
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st,clkreq_gpio = <&tlmm 31 0x00>;
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interrupt-parent = <&tlmm>;
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interrupts = <55 0>;
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interrupt-names = "nfc_irq";
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pinctrl-names = "nfc_active", "nfc_suspend";
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pinctrl-0 = <&nfc_int_active &nfc_enable_active>;
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pinctrl-1 = <&nfc_int_suspend &nfc_enable_suspend>;
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};
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};
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&tlmm {
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nfc_int_active: nfc_int_active {
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/* active state */
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mux {
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/* NFC Read Interrupt */
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pins = "gpio55";
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function = "gpio";
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};
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config {
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pins = "gpio55";
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drive-strength = <2>; /* 2 MA */
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bias-pull-down;
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};
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};
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nfc_int_suspend: nfc_int_suspend {
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/* sleep state */
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mux {
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/* NFC Read Interrupt */
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pins = "gpio55";
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function = "gpio";
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};
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config {
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pins = "gpio55";
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drive-strength = <2>; /* 2 MA */
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bias-pull-down;
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};
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};
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nfc_enable_active: nfc_enable_active {
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mux {
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/* Enable, Firmware and Clock request gpios */
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pins = "gpio23", "gpio31";
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function = "gpio";
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};
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config {
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pins = "gpio23", "gpio31";
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drive-strength = <2>; /* 2 MA */
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bias-disable;
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};
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};
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nfc_enable_suspend: nfc_enable_suspend {
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mux {
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pins = "gpio23", "gpio31";
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function = "gpio";
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};
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config {
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pins = "gpio23", "gpio31";
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drive-strength = <2>; /* 2 MA */
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bias-disable;
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};
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};
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};
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