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 <henning.schild@siemens.com>
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
20static struct gpiod_lookup_table simatic_ipc_led_gpio_table = {
21 .dev_id = "leds-gpio",
22 .table = {
23 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 52, NULL, 0, GPIO_ACTIVE_LOW),
24 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 53, NULL, 1, GPIO_ACTIVE_LOW),
25 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 57, NULL, 2, GPIO_ACTIVE_LOW),
26 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 58, NULL, 3, GPIO_ACTIVE_LOW),
27 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 60, NULL, 4, GPIO_ACTIVE_LOW),
28 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 51, NULL, 5, GPIO_ACTIVE_LOW),
29 {} /* Terminating entry */
30 },
31};
32
33static struct gpiod_lookup_table simatic_ipc_led_gpio_table_extra = {
34 .dev_id = NULL, /* Filled during initialization */
35 .table = {
36 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 56, NULL, 6, GPIO_ACTIVE_LOW),
37 GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 59, NULL, 7, GPIO_ACTIVE_HIGH),
38 {} /* Terminating entry */
39 },
40};
41
42static int simatic_ipc_leds_gpio_apollolake_probe(struct platform_device *pdev)
43{
44 return simatic_ipc_leds_gpio_probe(pdev, table: &simatic_ipc_led_gpio_table,
45 table_extra: &simatic_ipc_led_gpio_table_extra);
46}
47
48static void simatic_ipc_leds_gpio_apollolake_remove(struct platform_device *pdev)
49{
50 simatic_ipc_leds_gpio_remove(pdev, table: &simatic_ipc_led_gpio_table,
51 table_extra: &simatic_ipc_led_gpio_table_extra);
52}
53
54static struct platform_driver simatic_ipc_led_gpio_apollolake_driver = {
55 .probe = simatic_ipc_leds_gpio_apollolake_probe,
56 .remove = simatic_ipc_leds_gpio_apollolake_remove,
57 .driver = {
58 .name = KBUILD_MODNAME,
59 },
60};
61module_platform_driver(simatic_ipc_led_gpio_apollolake_driver);
62
63MODULE_DESCRIPTION("LED driver for Siemens Simatic IPCs based on Intel Apollo Lake GPIO");
64MODULE_LICENSE("GPL v2");
65MODULE_ALIAS("platform:" KBUILD_MODNAME);
66MODULE_SOFTDEP("pre: simatic-ipc-leds-gpio-core platform:apollolake-pinctrl");
67MODULE_AUTHOR("Henning Schild <henning.schild@siemens.com>");
68

source code of linux/drivers/leds/simatic/simatic-ipc-leds-gpio-apollolake.c