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Dummy ISA DMA functions for systems that don't have ISA but share 

drivers with ISA such as legacy free PCI.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2004-12-28 09:09:19 +00:00
parent b188ffe876
commit 8c93650890
1 changed files with 28 additions and 0 deletions
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28
arch/mips/kernel/dma-no-isa.c Normal file
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2004 by Ralf Baechle
*
* Dummy ISA DMA functions for systems that don't have ISA but share drivers
* with ISA such as legacy free PCI.
*/
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/spinlock.h>
DEFINE_SPINLOCK(dma_spin_lock);
int request_dma(unsigned int dmanr, const char * device_id)
{
return -EINVAL;
}
void free_dma(unsigned int dmanr)
{
}
EXPORT_SYMBOL(dma_spin_lock);
EXPORT_SYMBOL(request_dma);
EXPORT_SYMBOL(free_dma);