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// 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_DESCRIPTION("CMOS Battery monitoring for Simatic IPCs based on Nuvoton GPIO");
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>");
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