1*835a0c10SLee Jones // SPDX-License-Identifier: GPL-2.0 2*835a0c10SLee Jones /* 3*835a0c10SLee Jones * Siemens SIMATIC IPC driver for GPIO based LEDs 4*835a0c10SLee Jones * 5*835a0c10SLee Jones * Copyright (c) Siemens AG, 2023 6*835a0c10SLee Jones * 7*835a0c10SLee Jones * Author: 8*835a0c10SLee Jones * Henning Schild <henning.schild@siemens.com> 9*835a0c10SLee Jones */ 10*835a0c10SLee Jones 11*835a0c10SLee Jones #include <linux/gpio/machine.h> 12*835a0c10SLee Jones #include <linux/gpio/consumer.h> 13*835a0c10SLee Jones #include <linux/leds.h> 14*835a0c10SLee Jones #include <linux/module.h> 15*835a0c10SLee Jones #include <linux/platform_device.h> 16*835a0c10SLee Jones #include <linux/platform_data/x86/simatic-ipc-base.h> 17*835a0c10SLee Jones 18*835a0c10SLee Jones #include "simatic-ipc-leds-gpio.h" 19*835a0c10SLee Jones 20*835a0c10SLee Jones struct simatic_ipc_led_tables { 21*835a0c10SLee Jones struct gpiod_lookup_table *led_lookup_table; 22*835a0c10SLee Jones struct gpiod_lookup_table *led_lookup_table_extra; 23*835a0c10SLee Jones }; 24*835a0c10SLee Jones 25*835a0c10SLee Jones static struct gpiod_lookup_table simatic_ipc_led_gpio_table_227g = { 26*835a0c10SLee Jones .dev_id = "leds-gpio", 27*835a0c10SLee Jones .table = { 28*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 0, NULL, 0, GPIO_ACTIVE_LOW), 29*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 1, NULL, 1, GPIO_ACTIVE_LOW), 30*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 2, NULL, 2, GPIO_ACTIVE_LOW), 31*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 3, GPIO_ACTIVE_LOW), 32*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 4, NULL, 4, GPIO_ACTIVE_LOW), 33*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 5, NULL, 5, GPIO_ACTIVE_LOW), 34*835a0c10SLee Jones {} /* Terminating entry */ 35*835a0c10SLee Jones }, 36*835a0c10SLee Jones }; 37*835a0c10SLee Jones 38*835a0c10SLee Jones static struct gpiod_lookup_table simatic_ipc_led_gpio_table_extra_227g = { 39*835a0c10SLee Jones .dev_id = NULL, /* Filled during initialization */ 40*835a0c10SLee Jones .table = { 41*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-3", 6, NULL, 6, GPIO_ACTIVE_HIGH), 42*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-3", 7, NULL, 7, GPIO_ACTIVE_HIGH), 43*835a0c10SLee Jones {} /* Terminating entry */ 44*835a0c10SLee Jones }, 45*835a0c10SLee Jones }; 46*835a0c10SLee Jones 47*835a0c10SLee Jones static struct gpiod_lookup_table simatic_ipc_led_gpio_table_bx_59a = { 48*835a0c10SLee Jones .dev_id = "leds-gpio", 49*835a0c10SLee Jones .table = { 50*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 0, NULL, 0, GPIO_ACTIVE_LOW), 51*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 1, GPIO_ACTIVE_LOW), 52*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-5", 3, NULL, 2, GPIO_ACTIVE_LOW), 53*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-5", 2, NULL, 3, GPIO_ACTIVE_LOW), 54*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-7", 7, NULL, 4, GPIO_ACTIVE_LOW), 55*835a0c10SLee Jones GPIO_LOOKUP_IDX("gpio-f7188x-7", 4, NULL, 5, GPIO_ACTIVE_LOW), 56*835a0c10SLee Jones {} /* Terminating entry */ 57*835a0c10SLee Jones } 58*835a0c10SLee Jones }; 59*835a0c10SLee Jones 60*835a0c10SLee Jones static int simatic_ipc_leds_gpio_f7188x_probe(struct platform_device *pdev) 61*835a0c10SLee Jones { 62*835a0c10SLee Jones const struct simatic_ipc_platform *plat = dev_get_platdata(&pdev->dev); 63*835a0c10SLee Jones struct simatic_ipc_led_tables *led_tables; 64*835a0c10SLee Jones 65*835a0c10SLee Jones led_tables = devm_kzalloc(&pdev->dev, sizeof(*led_tables), GFP_KERNEL); 66*835a0c10SLee Jones if (!led_tables) 67*835a0c10SLee Jones return -ENOMEM; 68*835a0c10SLee Jones 69*835a0c10SLee Jones switch (plat->devmode) { 70*835a0c10SLee Jones case SIMATIC_IPC_DEVICE_227G: 71*835a0c10SLee Jones led_tables->led_lookup_table = &simatic_ipc_led_gpio_table_227g; 72*835a0c10SLee Jones led_tables->led_lookup_table_extra = &simatic_ipc_led_gpio_table_extra_227g; 73*835a0c10SLee Jones break; 74*835a0c10SLee Jones case SIMATIC_IPC_DEVICE_BX_59A: 75*835a0c10SLee Jones led_tables->led_lookup_table = &simatic_ipc_led_gpio_table_bx_59a; 76*835a0c10SLee Jones break; 77*835a0c10SLee Jones default: 78*835a0c10SLee Jones return -ENODEV; 79*835a0c10SLee Jones } 80*835a0c10SLee Jones 81*835a0c10SLee Jones platform_set_drvdata(pdev, led_tables); 82*835a0c10SLee Jones return simatic_ipc_leds_gpio_probe(pdev, led_tables->led_lookup_table, 83*835a0c10SLee Jones led_tables->led_lookup_table_extra); 84*835a0c10SLee Jones } 85*835a0c10SLee Jones 86*835a0c10SLee Jones static void simatic_ipc_leds_gpio_f7188x_remove(struct platform_device *pdev) 87*835a0c10SLee Jones { 88*835a0c10SLee Jones struct simatic_ipc_led_tables *led_tables = platform_get_drvdata(pdev); 89*835a0c10SLee Jones 90*835a0c10SLee Jones simatic_ipc_leds_gpio_remove(pdev, led_tables->led_lookup_table, 91*835a0c10SLee Jones led_tables->led_lookup_table_extra); 92*835a0c10SLee Jones } 93*835a0c10SLee Jones 94*835a0c10SLee Jones static struct platform_driver simatic_ipc_led_gpio_driver = { 95*835a0c10SLee Jones .probe = simatic_ipc_leds_gpio_f7188x_probe, 96*835a0c10SLee Jones .remove = simatic_ipc_leds_gpio_f7188x_remove, 97*835a0c10SLee Jones .driver = { 98*835a0c10SLee Jones .name = KBUILD_MODNAME, 99*835a0c10SLee Jones }, 100*835a0c10SLee Jones }; 101*835a0c10SLee Jones module_platform_driver(simatic_ipc_led_gpio_driver); 102*835a0c10SLee Jones 103*835a0c10SLee Jones MODULE_DESCRIPTION("LED driver for Siemens Simatic IPCs based on Nuvoton GPIO"); 104*835a0c10SLee Jones MODULE_LICENSE("GPL v2"); 105*835a0c10SLee Jones MODULE_ALIAS("platform:" KBUILD_MODNAME); 106*835a0c10SLee Jones MODULE_SOFTDEP("pre: simatic-ipc-leds-gpio-core gpio_f7188x"); 107*835a0c10SLee Jones MODULE_AUTHOR("Henning Schild <henning.schild@siemens.com>"); 108