1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Siemens SIMATIC IPC driver for GPIO based LEDs
4 *
5 * Copyright (c) Siemens AG, 2023
6 *
7 * Author:
8 * Henning Schild <[email protected]>
9 */
10
11 #include <linux/gpio/machine.h>
12 #include <linux/gpio/consumer.h>
13 #include <linux/leds.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-leds-gpio.h"
19
20 static struct gpiod_lookup_table simatic_ipc_led_gpio_table = {
21 .dev_id = "leds-gpio",
22 .table = {
23 GPIO_LOOKUP_IDX("INTC1020:04", 72, NULL, 0, GPIO_ACTIVE_HIGH),
24 GPIO_LOOKUP_IDX("INTC1020:04", 77, NULL, 1, GPIO_ACTIVE_HIGH),
25 GPIO_LOOKUP_IDX("INTC1020:04", 78, NULL, 2, GPIO_ACTIVE_HIGH),
26 GPIO_LOOKUP_IDX("INTC1020:04", 58, NULL, 3, GPIO_ACTIVE_HIGH),
27 GPIO_LOOKUP_IDX("INTC1020:04", 60, NULL, 4, GPIO_ACTIVE_HIGH),
28 GPIO_LOOKUP_IDX("INTC1020:04", 62, NULL, 5, GPIO_ACTIVE_HIGH),
29 {} /* Terminating entry */
30 },
31 };
32
simatic_ipc_leds_gpio_elkhartlake_probe(struct platform_device * pdev)33 static int simatic_ipc_leds_gpio_elkhartlake_probe(struct platform_device *pdev)
34 {
35 return simatic_ipc_leds_gpio_probe(pdev, &simatic_ipc_led_gpio_table,
36 NULL);
37 }
38
simatic_ipc_leds_gpio_elkhartlake_remove(struct platform_device * pdev)39 static void simatic_ipc_leds_gpio_elkhartlake_remove(struct platform_device *pdev)
40 {
41 simatic_ipc_leds_gpio_remove(pdev, &simatic_ipc_led_gpio_table, NULL);
42 }
43
44 static struct platform_driver simatic_ipc_led_gpio_elkhartlake_driver = {
45 .probe = simatic_ipc_leds_gpio_elkhartlake_probe,
46 .remove = simatic_ipc_leds_gpio_elkhartlake_remove,
47 .driver = {
48 .name = KBUILD_MODNAME,
49 },
50 };
51 module_platform_driver(simatic_ipc_led_gpio_elkhartlake_driver);
52
53 MODULE_DESCRIPTION("LED driver for Siemens Simatic IPCs based on Intel Elkhart Lake GPIO");
54 MODULE_LICENSE("GPL v2");
55 MODULE_ALIAS("platform:" KBUILD_MODNAME);
56 MODULE_SOFTDEP("pre: simatic-ipc-leds-gpio-core platform:elkhartlake-pinctrl");
57 MODULE_AUTHOR("Henning Schild <[email protected]>");
58