1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * arch/arm/plat-iop/gpio.c
4 * GPIO handling for Intel IOP3xx processors.
6 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
10 #include <linux/module.h>
11 #include <linux/gpio/driver.h>
12 #include <linux/platform_device.h>
14 #define IOP3XX_GPOE 0x0000
15 #define IOP3XX_GPID 0x0004
16 #define IOP3XX_GPOD 0x0008
18 static int iop3xx_gpio_probe(struct platform_device *pdev)
24 gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
28 base = devm_platform_ioremap_resource(pdev, 0);
32 err = bgpio_init(gc, &pdev->dev, 1, base + IOP3XX_GPID,
33 base + IOP3XX_GPOD, NULL, NULL, base + IOP3XX_GPOE, 0);
38 gc->owner = THIS_MODULE;
39 gc->label = "gpio-iop";
41 return devm_gpiochip_add_data(&pdev->dev, gc, NULL);
44 static struct platform_driver iop3xx_gpio_driver = {
48 .probe = iop3xx_gpio_probe,
51 static int __init iop3xx_gpio_init(void)
53 return platform_driver_register(&iop3xx_gpio_driver);
55 arch_initcall(iop3xx_gpio_init);
57 MODULE_DESCRIPTION("GPIO handling for Intel IOP3xx processors");
58 MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
59 MODULE_LICENSE("GPL");