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a45f572ab8
Fix the 'make W=1' issues: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/simple/simatic-ipc-leds-gpio-apollolake.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/simple/simatic-ipc-leds-gpio-core.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/simple/simatic-ipc-leds-gpio-elkhartlake.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/simple/simatic-ipc-leds-gpio-f7188x.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/simple/simatic-ipc-leds.o Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20240517-md-simatic-ipc-v1-1-bbbd199262b8@quicinc.com Signed-off-by: Lee Jones <lee@kernel.org>
108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Siemens SIMATIC IPC driver for GPIO based LEDs
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*
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* Copyright (c) Siemens AG, 2023
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*
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* Author:
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* Henning Schild <henning.schild@siemens.com>
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*/
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#include <linux/gpio/machine.h>
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#include <linux/gpio/consumer.h>
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#include <linux/leds.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/platform_data/x86/simatic-ipc-base.h>
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#include "simatic-ipc-leds-gpio.h"
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struct simatic_ipc_led_tables {
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struct gpiod_lookup_table *led_lookup_table;
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struct gpiod_lookup_table *led_lookup_table_extra;
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};
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static struct gpiod_lookup_table simatic_ipc_led_gpio_table_227g = {
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.dev_id = "leds-gpio",
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.table = {
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 0, NULL, 0, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 1, NULL, 1, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 2, NULL, 2, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 3, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 4, NULL, 4, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 5, NULL, 5, GPIO_ACTIVE_LOW),
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{} /* Terminating entry */
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},
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};
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static struct gpiod_lookup_table simatic_ipc_led_gpio_table_extra_227g = {
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.dev_id = NULL, /* Filled during initialization */
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.table = {
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GPIO_LOOKUP_IDX("gpio-f7188x-3", 6, NULL, 6, GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP_IDX("gpio-f7188x-3", 7, NULL, 7, GPIO_ACTIVE_HIGH),
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{} /* Terminating entry */
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},
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};
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static struct gpiod_lookup_table simatic_ipc_led_gpio_table_bx_59a = {
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.dev_id = "leds-gpio",
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.table = {
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 0, NULL, 0, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 1, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-5", 3, NULL, 2, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-5", 2, NULL, 3, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-7", 7, NULL, 4, GPIO_ACTIVE_LOW),
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GPIO_LOOKUP_IDX("gpio-f7188x-7", 4, NULL, 5, GPIO_ACTIVE_LOW),
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{} /* Terminating entry */
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}
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};
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static int simatic_ipc_leds_gpio_f7188x_probe(struct platform_device *pdev)
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{
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const struct simatic_ipc_platform *plat = dev_get_platdata(&pdev->dev);
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struct simatic_ipc_led_tables *led_tables;
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led_tables = devm_kzalloc(&pdev->dev, sizeof(*led_tables), GFP_KERNEL);
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if (!led_tables)
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return -ENOMEM;
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switch (plat->devmode) {
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case SIMATIC_IPC_DEVICE_227G:
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led_tables->led_lookup_table = &simatic_ipc_led_gpio_table_227g;
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led_tables->led_lookup_table_extra = &simatic_ipc_led_gpio_table_extra_227g;
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break;
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case SIMATIC_IPC_DEVICE_BX_59A:
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led_tables->led_lookup_table = &simatic_ipc_led_gpio_table_bx_59a;
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break;
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default:
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return -ENODEV;
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}
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platform_set_drvdata(pdev, led_tables);
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return simatic_ipc_leds_gpio_probe(pdev, led_tables->led_lookup_table,
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led_tables->led_lookup_table_extra);
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}
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static void simatic_ipc_leds_gpio_f7188x_remove(struct platform_device *pdev)
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{
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struct simatic_ipc_led_tables *led_tables = platform_get_drvdata(pdev);
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simatic_ipc_leds_gpio_remove(pdev, led_tables->led_lookup_table,
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led_tables->led_lookup_table_extra);
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}
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static struct platform_driver simatic_ipc_led_gpio_driver = {
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.probe = simatic_ipc_leds_gpio_f7188x_probe,
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.remove_new = simatic_ipc_leds_gpio_f7188x_remove,
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.driver = {
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.name = KBUILD_MODNAME,
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},
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};
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module_platform_driver(simatic_ipc_led_gpio_driver);
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MODULE_DESCRIPTION("LED driver for Siemens Simatic IPCs based on Nuvoton GPIO");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:" KBUILD_MODNAME);
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MODULE_SOFTDEP("pre: simatic-ipc-leds-gpio-core gpio_f7188x");
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MODULE_AUTHOR("Henning Schild <henning.schild@siemens.com>");
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