diff options
Diffstat (limited to 'drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c')
-rw-r--r-- | drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c b/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c new file mode 100644 index 0000000000..a66107e0fe --- /dev/null +++ b/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c @@ -0,0 +1,87 @@ +// 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 int simatic_ipc_batt_f7188x_remove(struct platform_device *pdev) +{ + return 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 = 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>"); |