1 files changed, 0 insertions, 133 deletions
diff --git a/arch/arm/mach-pxa/dma.c b/arch/arm/mach-pxa/dma.c
deleted file mode 100644
index 458112b21e2..00000000000
--- a/arch/arm/mach-pxa/dma.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- *  linux/arch/arm/mach-pxa/dma.c
- *
- *  PXA DMA registration and IRQ dispatching
- *
- *  Author:	Nicolas Pitre
- *  Created:	Nov 15, 2001
- *  Copyright:	MontaVista Software Inc.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/hardware.h>
-#include <asm/dma.h>
-
-#include <asm/arch/pxa-regs.h>
-
-static struct dma_channel {
-	char *name;
-	void (*irq_handler)(int, void *, struct pt_regs *);
-	void *data;
-} dma_channels[PXA_DMA_CHANNELS];
-
-
-int pxa_request_dma (char *name, pxa_dma_prio prio,
-			 void (*irq_handler)(int, void *, struct pt_regs *),
-		 	 void *data)
-{
-	unsigned long flags;
-	int i, found = 0;
-
-	/* basic sanity checks */
-	if (!name || !irq_handler)
-		return -EINVAL;
-
-	local_irq_save(flags);
-
-	/* try grabbing a DMA channel with the requested priority */
-	for (i = prio; i < prio + PXA_DMA_NBCH(prio); i++) {
-		if (!dma_channels[i].name) {
-			found = 1;
-			break;
-		}
-	}
-
-	if (!found) {
-		/* requested prio group is full, try hier priorities */
-		for (i = prio-1; i >= 0; i--) {
-			if (!dma_channels[i].name) {
-				found = 1;
-				break;
-			}
-		}
-	}
-
-	if (found) {
-		DCSR(i) = DCSR_STARTINTR|DCSR_ENDINTR|DCSR_BUSERR;
-		dma_channels[i].name = name;
-		dma_channels[i].irq_handler = irq_handler;
-		dma_channels[i].data = data;
-	} else {
-		printk (KERN_WARNING "No more available DMA channels for %s\n", name);
-		i = -ENODEV;
-	}
-
-	local_irq_restore(flags);
-	return i;
-}
-
-void pxa_free_dma (int dma_ch)
-{
-	unsigned long flags;
-
-	if (!dma_channels[dma_ch].name) {
-		printk (KERN_CRIT
-			"%s: trying to free channel %d which is already freed\n",
-			__FUNCTION__, dma_ch);
-		return;
-	}
-
-	local_irq_save(flags);
-	DCSR(dma_ch) = DCSR_STARTINTR|DCSR_ENDINTR|DCSR_BUSERR;
-	dma_channels[dma_ch].name = NULL;
-	local_irq_restore(flags);
-}
-
-static irqreturn_t dma_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
-{
-	int i, dint = DINT;
-
-	for (i = 0; i < PXA_DMA_CHANNELS; i++) {
-		if (dint & (1 << i)) {
-			struct dma_channel *channel = &dma_channels[i];
-			if (channel->name && channel->irq_handler) {
-				channel->irq_handler(i, channel->data, regs);
-			} else {
-				/*
-				 * IRQ for an unregistered DMA channel:
-				 * let's clear the interrupts and disable it.
-				 */
-				printk (KERN_WARNING "spurious IRQ for DMA channel %d\n", i);
-				DCSR(i) = DCSR_STARTINTR|DCSR_ENDINTR|DCSR_BUSERR;
-			}
-		}
-	}
-	return IRQ_HANDLED;
-}
-
-static int __init pxa_dma_init (void)
-{
-	int ret;
-
-	ret = request_irq (IRQ_DMA, dma_irq_handler, 0, "DMA", NULL);
-	if (ret)
-		printk (KERN_CRIT "Wow!  Can't register IRQ for DMA\n");
-	return ret;
-}
-
-arch_initcall(pxa_dma_init);
-
-EXPORT_SYMBOL(pxa_request_dma);
-EXPORT_SYMBOL(pxa_free_dma);
-