// SPDX-License-Identifier: GPL-2.0 /* * Siemens SIMATIC IPC driver for CMOS battery monitoring * * Copyright (c) Siemens AG, 2023 * * Authors: * Henning Schild <henning.schild@siemens.com> */ #include <linux/gpio/machine.h> #include <linux/gpio/consumer.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/platform_data/x86/simatic-ipc-base.h> #include "simatic-ipc-batt.h" static struct gpiod_lookup_table *batt_lookup_table; static struct gpiod_lookup_table simatic_ipc_batt_gpio_table_227g = { .table = { GPIO_LOOKUP_IDX("gpio-f7188x-7", 6, NULL, 0, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("gpio-f7188x-7", 5, NULL, 1, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("INTC1020:01", 66, NULL, 2, GPIO_ACTIVE_HIGH), {} /* Terminating entry */ }, }; static struct gpiod_lookup_table simatic_ipc_batt_gpio_table_bx_39a = { .table = { GPIO_LOOKUP_IDX("gpio-f7188x-6", 4, NULL, 0, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("gpio-f7188x-6", 3, NULL, 1, GPIO_ACTIVE_HIGH), {} /* Terminating entry */ }, }; static struct gpiod_lookup_table simatic_ipc_batt_gpio_table_bx_59a = { .table = { GPIO_LOOKUP_IDX("gpio-f7188x-7", 6, NULL, 0, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("gpio-f7188x-7", 5, NULL, 1, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("INTC1056:00", 438, NULL, 2, GPIO_ACTIVE_HIGH), {} /* Terminating entry */ } }; static void simatic_ipc_batt_f7188x_remove(struct platform_device *pdev) { simatic_ipc_batt_remove(pdev, batt_lookup_table); } static int simatic_ipc_batt_f7188x_probe(struct platform_device *pdev) { const struct simatic_ipc_platform *plat = pdev->dev.platform_data; switch (plat->devmode) { case SIMATIC_IPC_DEVICE_227G: batt_lookup_table = &simatic_ipc_batt_gpio_table_227g; break; case SIMATIC_IPC_DEVICE_BX_39A: batt_lookup_table = &simatic_ipc_batt_gpio_table_bx_39a; break; case SIMATIC_IPC_DEVICE_BX_59A: batt_lookup_table = &simatic_ipc_batt_gpio_table_bx_59a; break; default: return -ENODEV; } return simatic_ipc_batt_probe(pdev, batt_lookup_table); } static struct platform_driver simatic_ipc_batt_driver = { .probe = simatic_ipc_batt_f7188x_probe, .remove_new = simatic_ipc_batt_f7188x_remove, .driver = { .name = KBUILD_MODNAME, }, }; module_platform_driver(simatic_ipc_batt_driver); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" KBUILD_MODNAME); MODULE_SOFTDEP("pre: simatic-ipc-batt gpio_f7188x platform:elkhartlake-pinctrl platform:alderlake-pinctrl"); MODULE_AUTHOR("Henning Schild <henning.schild@siemens.com>");