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2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* arch/arm/plat-iop/gpio.c
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* GPIO handling for Intel IOP3xx processors.
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*
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* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
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*/
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/gpio/driver.h>
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#include <linux/platform_device.h>
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#define IOP3XX_GPOE 0x0000
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#define IOP3XX_GPID 0x0004
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#define IOP3XX_GPOD 0x0008
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static int iop3xx_gpio_probe(struct platform_device *pdev)
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{
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struct gpio_chip *gc;
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void __iomem *base;
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int err;
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gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
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if (!gc)
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return -ENOMEM;
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base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(base))
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return PTR_ERR(base);
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err = bgpio_init(gc, &pdev->dev, 1, base + IOP3XX_GPID,
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base + IOP3XX_GPOD, NULL, NULL, base + IOP3XX_GPOE, 0);
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if (err)
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return err;
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gc->base = 0;
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gc->owner = THIS_MODULE;
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return devm_gpiochip_add_data(&pdev->dev, gc, NULL);
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}
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static struct platform_driver iop3xx_gpio_driver = {
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.driver = {
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.name = "gpio-iop",
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},
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.probe = iop3xx_gpio_probe,
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};
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static int __init iop3xx_gpio_init(void)
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{
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return platform_driver_register(&iop3xx_gpio_driver);
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}
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arch_initcall(iop3xx_gpio_init);
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MODULE_DESCRIPTION("GPIO handling for Intel IOP3xx processors");
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MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
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MODULE_LICENSE("GPL");
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