349ab52446
This patch adds a primitive helper to support card hotplug detection on platforms, where a GPIO, capable of producing interrupts, is used for detection of card-insertion and -removal events. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
20 lines
537 B
C
20 lines
537 B
C
/*
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* Generic GPIO card-detect helper header
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*
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* Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef MMC_CD_GPIO_H
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#define MMC_CD_GPIO_H
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struct mmc_host;
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int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
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unsigned int irq, unsigned long flags);
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void mmc_cd_gpio_free(struct mmc_host *host);
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#endif
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