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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c2f59e8180
Current USB3503 driver ignores GPIO polarity and always operates as if the GPIO lines were flagged as ACTIVE_HIGH. Fix the polarity for the existing USB3503 chip applications to match the chip specification and common convention for naming the pins. The only pin, which has to be ACTIVE_LOW is the reset pin. The remaining are ACTIVE_HIGH. This change allows later to fix the USB3503 driver to properly use generic GPIO bindings and read polarity from DT. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20191211145208.24976-1-m.szyprowski@samsung.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
282 lines
6.9 KiB
Plaintext
282 lines
6.9 KiB
Plaintext
/*
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* Device Tree Source for mangOH Green Board with WP8548 Module
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*
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* Copyright (C) 2016 BayLibre, SAS.
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* Author : Neil Armstrong <narmstrong@baylibre.com>
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*
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* This file is dual-licensed: you can use it either under the terms
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* of the GPL or the X11 license, at your option. Note that this dual
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* licensing only applies to this file, and not this project as a
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* whole.
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*
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* a) This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This file 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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* Or, alternatively,
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*
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* b) Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <dt-bindings/input/input.h>
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#include "qcom-mdm9615-wp8548.dtsi"
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/gpio/gpio.h>
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/ {
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model = "MangOH Green with WP8548 Module";
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compatible = "swir,mangoh-green-wp8548", "swir,wp8548", "qcom,mdm9615";
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aliases {
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spi0 = &gsbi3_spi;
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serial0 = &gsbi4_serial;
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serial1 = &gsbi5_serial;
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i2c0 = &gsbi5_i2c;
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mmc0 = &sdcc1;
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};
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chosen {
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stdout-path = "serial1:115200n8";
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};
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};
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&msmgpio {
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/* MangOH GPIO Mapping :
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* - 2 : GPIOEXP_INT2
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* - 7 : IOT1_GPIO2
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* - 8 : IOT0_GPIO4
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* - 13: IOT0_GPIO3
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* - 21: IOT1_GPIO4
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* - 22: IOT2_GPIO1
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* - 23: IOT2_GPIO2
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* - 24: IOT2_GPIO3
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* - 25: IOT1_GPIO1
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* - 32: IOT1_GPIO3
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* - 33: IOT0_GPIO2
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* - 42: IOT0_GPIO1 and SD Card Detect
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*/
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gpioext1_pins: gpioext1_pins {
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pins {
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pins = "gpio2";
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function = "gpio";
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input-enable;
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bias-disable;
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};
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};
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sdc_cd_pins: sdc_cd_pins {
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pins {
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pins = "gpio42";
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function = "gpio";
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drive-strength = <2>;
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bias-pull-up;
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};
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};
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};
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&gsbi3_spi {
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spi@0 {
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compatible = "swir,mangoh-iotport-spi", "spidev";
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spi-max-frequency = <24000000>;
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reg = <0>;
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};
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};
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&gsbi5_i2c {
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mux@71 {
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compatible = "nxp,pca9548";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x71>;
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i2c_iot0: i2c@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0>;
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};
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i2c_iot1: i2c@1 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <1>;
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};
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i2c_iot2: i2c@2 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <2>;
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};
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i2c@3 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <3>;
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usbhub: hub@8 {
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compatible = "smsc,usb3503a";
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reg = <0x8>;
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connect-gpios = <&gpioext2 1 GPIO_ACTIVE_HIGH>;
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intn-gpios = <&gpioext2 0 GPIO_ACTIVE_HIGH>;
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initial-mode = <1>;
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};
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};
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i2c@4 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <4>;
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gpioext0: gpio@3e {
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/* GPIO Expander 0 Mapping :
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* - 0: ARDUINO_RESET_Level shift
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* - 1: BattChrgr_PG_N
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* - 2: BattGauge_GPIO
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* - 3: LED_ON (out active high)
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* - 4: ATmega_reset_GPIO
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* - 5: X
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* - 6: PCM_ANALOG_SELECT (out active high)
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* - 7: X
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* - 8: Board_rev_res1 (in)
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* - 9: Board_rev_res2 (in)
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* - 10: UART_EXP1_ENn (out active low / pull-down)
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* - 11: UART_EXP1_IN (out pull-down)
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* - 12: UART_EXP2_IN (out pull-down)
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* - 13: SDIO_SEL (out pull-down)
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* - 14: SPI_EXP1_ENn (out active low / pull-down)
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* - 15: SPI_EXP1_IN (out pull-down)
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*/
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#gpio-cells = <2>;
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#interrupt-cells = <2>;
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compatible = "semtech,sx1509q";
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reg = <0x3e>;
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interrupt-parent = <&gpioext1>;
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interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
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probe-reset;
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gpio-controller;
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interrupt-controller;
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};
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};
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i2c@5 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <5>;
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gpioext1: gpio@3f {
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/* GPIO Expander 1 Mapping :
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* - 0: GPIOEXP_INT1
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* - 1: Battery detect
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* - 2: GPIO_SCF3_RESET
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* - 3: LED_CARD_DETECT_IOT0 (in)
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* - 4: LED_CARD_DETECT_IOT1 (in)
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* - 5: LED_CARD_DETECT_IOT2 (in)
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* - 6: UIM2_PWM_SELECT
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* - 7: UIM2_M2_S_SELECT
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* - 8: TP900
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* - 9: SENSOR_INT1 (in)
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* - 10: SENSOR_INT2 (in)
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* - 11: CARD_DETECT_IOT0 (in pull-up)
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* - 12: CARD_DETECT_IOT2 (in pull-up)
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* - 13: CARD_DETECT_IOT1 (in pull-up)
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* - 14: GPIOEXP_INT3 (in active low / pull-up)
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* - 15: BattChrgr_INT_N
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*/
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pinctrl-0 = <&gpioext1_pins>;
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pinctrl-names = "default";
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#gpio-cells = <2>;
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#interrupt-cells = <2>;
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compatible = "semtech,sx1509q";
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reg = <0x3f>;
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interrupt-parent = <&msmgpio>;
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interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
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probe-reset;
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gpio-controller;
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interrupt-controller;
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};
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};
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i2c@6 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <6>;
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gpioext2: gpio@70 {
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/* GPIO Expander 2 Mapping :
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* - 0: USB_HUB_INTn
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* - 1: HUB_CONNECT
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* - 2: GPIO_IOT2_RESET (out active low / pull-up)
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* - 3: GPIO_IOT1_RESET (out active low / pull-up)
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* - 4: GPIO_IOT0_RESET (out active low / pull-up)
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* - 5: TP901
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* - 6: TP902
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* - 7: TP903
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* - 8: UART_EXP2_ENn (out active low / pull-down)
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* - 9: PCM_EXP1_ENn (out active low)
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* - 10: PCM_EXP1_SEL (out)
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* - 11: ARD_FTDI
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* - 12: TP904
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* - 13: TP905
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* - 14: TP906
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* - 15: RS232_Enable (out active high / pull-up)
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*/
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#gpio-cells = <2>;
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#interrupt-cells = <2>;
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compatible = "semtech,sx1509q";
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reg = <0x70>;
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interrupt-parent = <&gpioext1>;
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interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
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probe-reset;
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gpio-controller;
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interrupt-controller;
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};
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};
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i2c@7 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <7>;
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};
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};
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};
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&sdcc1 {
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pinctrl-0 = <&sdc_cd_pins>;
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pinctrl-names = "default";
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disable-wp;
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cd-gpios = <&msmgpio 42 GPIO_ACTIVE_LOW>; /* Active low CD */
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};
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