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1// SPDX-License-Identifier: GPL-2.02/*3 * Siemens SIMATIC IPC driver for CMOS battery monitoring4 *5 * Copyright (c) Siemens AG, 20236 *7 * Authors:8 * Henning Schild <henning.schild@siemens.com>9 */10 11#include <linux/gpio/machine.h>12#include <linux/gpio/consumer.h>13#include <linux/kernel.h>14#include <linux/module.h>15#include <linux/platform_device.h>16#include <linux/platform_data/x86/simatic-ipc-base.h>17 18#include "simatic-ipc-batt.h"19 20static struct gpiod_lookup_table *batt_lookup_table;21 22static struct gpiod_lookup_table simatic_ipc_batt_gpio_table_227g = {23 .table = {24 GPIO_LOOKUP_IDX("gpio-f7188x-7", 6, NULL, 0, GPIO_ACTIVE_HIGH),25 GPIO_LOOKUP_IDX("gpio-f7188x-7", 5, NULL, 1, GPIO_ACTIVE_HIGH),26 GPIO_LOOKUP_IDX("INTC1020:01", 66, NULL, 2, GPIO_ACTIVE_HIGH),27 {} /* Terminating entry */28 },29};30 31static struct gpiod_lookup_table simatic_ipc_batt_gpio_table_bx_39a = {32 .table = {33 GPIO_LOOKUP_IDX("gpio-f7188x-6", 4, NULL, 0, GPIO_ACTIVE_HIGH),34 GPIO_LOOKUP_IDX("gpio-f7188x-6", 3, NULL, 1, GPIO_ACTIVE_HIGH),35 {} /* Terminating entry */36 },37};38 39static struct gpiod_lookup_table simatic_ipc_batt_gpio_table_bx_59a = {40 .table = {41 GPIO_LOOKUP_IDX("gpio-f7188x-7", 6, NULL, 0, GPIO_ACTIVE_HIGH),42 GPIO_LOOKUP_IDX("gpio-f7188x-7", 5, NULL, 1, GPIO_ACTIVE_HIGH),43 GPIO_LOOKUP_IDX("INTC1056:00", 438, NULL, 2, GPIO_ACTIVE_HIGH),44 {} /* Terminating entry */45 }46};47 48static void simatic_ipc_batt_f7188x_remove(struct platform_device *pdev)49{50 simatic_ipc_batt_remove(pdev, batt_lookup_table);51}52 53static int simatic_ipc_batt_f7188x_probe(struct platform_device *pdev)54{55 const struct simatic_ipc_platform *plat = pdev->dev.platform_data;56 57 switch (plat->devmode) {58 case SIMATIC_IPC_DEVICE_227G:59 batt_lookup_table = &simatic_ipc_batt_gpio_table_227g;60 break;61 case SIMATIC_IPC_DEVICE_BX_39A:62 batt_lookup_table = &simatic_ipc_batt_gpio_table_bx_39a;63 break;64 case SIMATIC_IPC_DEVICE_BX_59A:65 batt_lookup_table = &simatic_ipc_batt_gpio_table_bx_59a;66 break;67 default:68 return -ENODEV;69 }70 71 return simatic_ipc_batt_probe(pdev, batt_lookup_table);72}73 74static struct platform_driver simatic_ipc_batt_driver = {75 .probe = simatic_ipc_batt_f7188x_probe,76 .remove_new = simatic_ipc_batt_f7188x_remove,77 .driver = {78 .name = KBUILD_MODNAME,79 },80};81 82module_platform_driver(simatic_ipc_batt_driver);83 84MODULE_DESCRIPTION("CMOS Battery monitoring for Simatic IPCs based on Nuvoton GPIO");85MODULE_LICENSE("GPL");86MODULE_ALIAS("platform:" KBUILD_MODNAME);87MODULE_SOFTDEP("pre: simatic-ipc-batt gpio_f7188x platform:elkhartlake-pinctrl platform:alderlake-pinctrl");88MODULE_AUTHOR("Henning Schild <henning.schild@siemens.com>");89