Index: linux/drivers/acpi/resource.c
===================================================================
--- /dev/null
+++ linux/drivers/acpi/resource.c
@@ -0,0 +1,393 @@
+/*
+ * drivers/acpi/resource.c - ACPI device resources interpretation.
+ *
+ * Copyright (C) 2012, Intel Corp.
+ * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/ioport.h>
+
+#ifdef CONFIG_X86
+#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
+#else
+#define valid_IRQ(i) (true)
+#endif
+
+static unsigned long acpi_dev_memresource_flags(u64 len, u8 write_protect,
+						bool window)
+{
+	unsigned long flags = IORESOURCE_MEM;
+
+	if (len == 0)
+		flags |= IORESOURCE_DISABLED;
+
+	if (write_protect == ACPI_READ_WRITE_MEMORY)
+		flags |= IORESOURCE_MEM_WRITEABLE;
+
+	if (window)
+		flags |= IORESOURCE_WINDOW;
+
+	return flags;
+}
+
+static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len,
+				     u8 write_protect)
+{
+	res->start = start;
+	res->end = start + len - 1;
+	res->flags = acpi_dev_memresource_flags(len, write_protect, false);
+}
+
+/**
+ * acpi_dev_resource_memory - Extract ACPI memory resource information.
+ * @ares: Input ACPI resource object.
+ * @res: Output generic resource object.
+ *
+ * Check if the given ACPI resource object represents a memory resource and
+ * if that's the case, use the information in it to populate the generic
+ * resource object pointed to by @res.
+ */
+bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res)
+{
+	struct acpi_resource_memory24 *memory24;
+	struct acpi_resource_memory32 *memory32;
+	struct acpi_resource_fixed_memory32 *fixed_memory32;
+
+	switch (ares->type) {
+	case ACPI_RESOURCE_TYPE_MEMORY24:
+		memory24 = &ares->data.memory24;
+		acpi_dev_get_memresource(res, memory24->minimum,
+					 memory24->address_length,
+					 memory24->write_protect);
+		break;
+	case ACPI_RESOURCE_TYPE_MEMORY32:
+		memory32 = &ares->data.memory32;
+		acpi_dev_get_memresource(res, memory32->minimum,
+					 memory32->address_length,
+					 memory32->write_protect);
+		break;
+	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+		fixed_memory32 = &ares->data.fixed_memory32;
+		acpi_dev_get_memresource(res, fixed_memory32->address,
+					 fixed_memory32->address_length,
+					 fixed_memory32->write_protect);
+		break;
+	default:
+		return false;
+	}
+	return true;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_resource_memory);
+
+static unsigned int acpi_dev_ioresource_flags(u64 start, u64 end, u8 io_decode,
+					      bool window)
+{
+	int flags = IORESOURCE_IO;
+
+	if (io_decode == ACPI_DECODE_16)
+		flags |= IORESOURCE_IO_16BIT_ADDR;
+
+	if (start > end || end >= 0x10003)
+		flags |= IORESOURCE_DISABLED;
+
+	if (window)
+		flags |= IORESOURCE_WINDOW;
+
+	return flags;
+}
+
+static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len,
+				    u8 io_decode)
+{
+	u64 end = start + len - 1;
+
+	res->start = start;
+	res->end = end;
+	res->flags = acpi_dev_ioresource_flags(start, end, io_decode, false);
+}
+
+/**
+ * acpi_dev_resource_io - Extract ACPI I/O resource information.
+ * @ares: Input ACPI resource object.
+ * @res: Output generic resource object.
+ *
+ * Check if the given ACPI resource object represents an I/O resource and
+ * if that's the case, use the information in it to populate the generic
+ * resource object pointed to by @res.
+ */
+bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res)
+{
+	struct acpi_resource_io *io;
+	struct acpi_resource_fixed_io *fixed_io;
+
+	switch (ares->type) {
+	case ACPI_RESOURCE_TYPE_IO:
+		io = &ares->data.io;
+		acpi_dev_get_ioresource(res, io->minimum,
+					io->address_length,
+					io->io_decode);
+		break;
+	case ACPI_RESOURCE_TYPE_FIXED_IO:
+		fixed_io = &ares->data.fixed_io;
+		acpi_dev_get_ioresource(res, fixed_io->address,
+					fixed_io->address_length,
+					ACPI_DECODE_10);
+		break;
+	default:
+		return false;
+	}
+	return true;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_resource_io);
+
+/**
+ * acpi_dev_resource_address_space - Extract ACPI address space information.
+ * @ares: Input ACPI resource object.
+ * @res: Output generic resource object.
+ *
+ * Check if the given ACPI resource object represents an address space resource
+ * and if that's the case, use the information in it to populate the generic
+ * resource object pointed to by @res.
+ */
+bool acpi_dev_resource_address_space(struct acpi_resource *ares,
+				     struct resource *res)
+{
+	acpi_status status;
+	struct acpi_resource_address64 addr;
+	bool window;
+	u64 len;
+	u8 io_decode;
+
+	switch (ares->type) {
+	case ACPI_RESOURCE_TYPE_ADDRESS16:
+	case ACPI_RESOURCE_TYPE_ADDRESS32:
+	case ACPI_RESOURCE_TYPE_ADDRESS64:
+		break;
+	default:
+		return false;
+	}
+
+	status = acpi_resource_to_address64(ares, &addr);
+	if (ACPI_FAILURE(status))
+		return true;
+
+	res->start = addr.minimum;
+	res->end = addr.maximum;
+	window = addr.producer_consumer == ACPI_PRODUCER;
+
+	switch(addr.resource_type) {
+	case ACPI_MEMORY_RANGE:
+		len = addr.maximum - addr.minimum + 1;
+		res->flags = acpi_dev_memresource_flags(len,
+						addr.info.mem.write_protect,
+						window);
+		break;
+	case ACPI_IO_RANGE:
+		io_decode = addr.granularity == 0xfff ?
+				ACPI_DECODE_10 : ACPI_DECODE_16;
+		res->flags = acpi_dev_ioresource_flags(addr.minimum,
+						       addr.maximum,
+						       io_decode, window);
+		break;
+	case ACPI_BUS_NUMBER_RANGE:
+		res->flags = IORESOURCE_BUS;
+		break;
+	default:
+		res->flags = 0;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space);
+
+/**
+ * acpi_dev_resource_ext_address_space - Extract ACPI address space information.
+ * @ares: Input ACPI resource object.
+ * @res: Output generic resource object.
+ *
+ * Check if the given ACPI resource object represents an extended address space
+ * resource and if that's the case, use the information in it to populate the
+ * generic resource object pointed to by @res.
+ */
+bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
+					 struct resource *res)
+{
+	struct acpi_resource_extended_address64 *ext_addr;
+	bool window;
+	u64 len;
+	u8 io_decode;
+
+	if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64)
+		return false;
+
+	ext_addr = &ares->data.ext_address64;
+
+	res->start = ext_addr->minimum;
+	res->end = ext_addr->maximum;
+	window = ext_addr->producer_consumer == ACPI_PRODUCER;
+
+	switch(ext_addr->resource_type) {
+	case ACPI_MEMORY_RANGE:
+		len = ext_addr->maximum - ext_addr->minimum + 1;
+		res->flags = acpi_dev_memresource_flags(len,
+					ext_addr->info.mem.write_protect,
+					window);
+		break;
+	case ACPI_IO_RANGE:
+		io_decode = ext_addr->granularity == 0xfff ?
+				ACPI_DECODE_10 : ACPI_DECODE_16;
+		res->flags = acpi_dev_ioresource_flags(ext_addr->minimum,
+						       ext_addr->maximum,
+						       io_decode, window);
+		break;
+	case ACPI_BUS_NUMBER_RANGE:
+		res->flags = IORESOURCE_BUS;
+		break;
+	default:
+		res->flags = 0;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space);
+
+/**
+ * acpi_dev_irq_flags - Determine IRQ resource flags.
+ * @triggering: Triggering type as provided by ACPI.
+ * @polarity: Interrupt polarity as provided by ACPI.
+ * @shareable: Whether or not the interrupt is shareable.
+ */
+unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable)
+{
+	unsigned long flags = IORESOURCE_IRQ;
+
+	if (triggering == ACPI_LEVEL_SENSITIVE)
+		flags = polarity == ACPI_ACTIVE_LOW ?
+			IORESOURCE_IRQ_LOWLEVEL : IORESOURCE_IRQ_HIGHLEVEL;
+	else
+		flags = polarity == ACPI_ACTIVE_LOW ?
+			IORESOURCE_IRQ_LOWEDGE : IORESOURCE_IRQ_HIGHEDGE;
+
+	if (shareable == ACPI_SHARED)
+		flags |= IORESOURCE_IRQ_SHAREABLE;
+
+	return flags;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_irq_flags);
+
+static void acpi_dev_irqresource_disabled(struct resource *res, u32 gsi)
+{
+	res->start = gsi;
+	res->end = gsi;
+	res->flags = IORESOURCE_IRQ | IORESOURCE_DISABLED;
+}
+
+static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
+				     u8 triggering, u8 polarity, u8 shareable)
+{
+	int irq, p, t;
+
+	if (!valid_IRQ(gsi)) {
+		acpi_dev_irqresource_disabled(res, gsi);
+		return;
+	}
+
+	/*
+	 * In IO-APIC mode, use overrided attribute. Two reasons:
+	 * 1. BIOS bug in DSDT
+	 * 2. BIOS uses IO-APIC mode Interrupt Source Override
+	 */
+	if (!acpi_get_override_irq(gsi, &t, &p)) {
+		u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
+		u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
+
+		if (triggering != trig || polarity != pol) {
+			pr_warning("ACPI: IRQ %d override to %s, %s\n", gsi,
+				   t ? "edge" : "level", p ? "low" : "high");
+			triggering = trig;
+			polarity = pol;
+		}
+	}
+
+	res->flags = acpi_dev_irq_flags(triggering, polarity, shareable);
+	irq = acpi_register_gsi(NULL, gsi, triggering, polarity);
+	if (irq >= 0) {
+		res->start = irq;
+		res->end = irq;
+	} else {
+		acpi_dev_irqresource_disabled(res, gsi);
+	}
+}
+
+/**
+ * acpi_dev_resource_interrupt - Extract ACPI interrupt resource information.
+ * @ares: Input ACPI resource object.
+ * @index: Index into the array of GSIs represented by the resource.
+ * @res: Output generic resource object.
+ *
+ * Check if the given ACPI resource object represents an interrupt resource
+ * and @index does not exceed the resource's interrupt count (true is returned
+ * in that case regardless of the results of the other checks)).  If that's the
+ * case, register the GSI corresponding to @index from the array of interrupts
+ * represented by the resource and populate the generic resource object pointed
+ * to by @res accordingly.  If the registration of the GSI is not successful,
+ * IORESOURCE_DISABLED will be set it that object's flags.
+ */
+bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
+				 struct resource *res)
+{
+	struct acpi_resource_irq *irq;
+	struct acpi_resource_extended_irq *ext_irq;
+
+	switch (ares->type) {
+	case ACPI_RESOURCE_TYPE_IRQ:
+		/*
+		 * Per spec, only one interrupt per descriptor is allowed in
+		 * _CRS, but some firmware violates this, so parse them all.
+		 */
+		irq = &ares->data.irq;
+		if (index >= irq->interrupt_count) {
+			acpi_dev_irqresource_disabled(res, 0);
+			return false;
+		}
+		acpi_dev_get_irqresource(res, irq->interrupts[index],
+					 irq->triggering, irq->polarity,
+					 irq->sharable);
+		break;
+	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+		ext_irq = &ares->data.extended_irq;
+		if (index >= ext_irq->interrupt_count) {
+			acpi_dev_irqresource_disabled(res, 0);
+			return false;
+		}
+		acpi_dev_get_irqresource(res, ext_irq->interrupts[index],
+					 ext_irq->triggering, ext_irq->polarity,
+					 ext_irq->sharable);
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_resource_interrupt);
Index: linux/drivers/acpi/Makefile
===================================================================
--- linux.orig/drivers/acpi/Makefile
+++ linux/drivers/acpi/Makefile
@@ -33,6 +33,7 @@ acpi-$(CONFIG_ACPI_SLEEP)	+= proc.o
 #
 acpi-y				+= bus.o glue.o
 acpi-y				+= scan.o
+acpi-y				+= resource.o
 acpi-y				+= processor_core.o
 acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
Index: linux/drivers/pnp/pnpacpi/rsparser.c
===================================================================
--- linux.orig/drivers/pnp/pnpacpi/rsparser.c
+++ linux/drivers/pnp/pnpacpi/rsparser.c
@@ -28,37 +28,6 @@
 #include "../base.h"
 #include "pnpacpi.h"
 
-#ifdef CONFIG_IA64
-#define valid_IRQ(i) (1)
-#else
-#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
-#endif
-
-/*
- * Allocated Resources
- */
-static int irq_flags(int triggering, int polarity, int shareable)
-{
-	int flags;
-
-	if (triggering == ACPI_LEVEL_SENSITIVE) {
-		if (polarity == ACPI_ACTIVE_LOW)
-			flags = IORESOURCE_IRQ_LOWLEVEL;
-		else
-			flags = IORESOURCE_IRQ_HIGHLEVEL;
-	} else {
-		if (polarity == ACPI_ACTIVE_LOW)
-			flags = IORESOURCE_IRQ_LOWEDGE;
-		else
-			flags = IORESOURCE_IRQ_HIGHEDGE;
-	}
-
-	if (shareable == ACPI_SHARED)
-		flags |= IORESOURCE_IRQ_SHAREABLE;
-
-	return flags;
-}
-
 static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
 			     int *polarity, int *shareable)
 {
@@ -94,45 +63,6 @@ static void decode_irq_flags(struct pnp_
 		*shareable = ACPI_EXCLUSIVE;
 }
 
-static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
-						u32 gsi, int triggering,
-						int polarity, int shareable)
-{
-	int irq, flags;
-	int p, t;
-
-	if (!valid_IRQ(gsi)) {
-		pnp_add_irq_resource(dev, gsi, IORESOURCE_DISABLED);
-		return;
-	}
-
-	/*
-	 * in IO-APIC mode, use overrided attribute. Two reasons:
-	 * 1. BIOS bug in DSDT
-	 * 2. BIOS uses IO-APIC mode Interrupt Source Override
-	 */
-	if (!acpi_get_override_irq(gsi, &t, &p)) {
-		t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
-		p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
-
-		if (triggering != t || polarity != p) {
-			dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
-				gsi, t ? "edge":"level", p ? "low":"high");
-			triggering = t;
-			polarity = p;
-		}
-	}
-
-	flags = irq_flags(triggering, polarity, shareable);
-	irq = acpi_register_gsi(&dev->dev, gsi, triggering, polarity);
-	if (irq >= 0)
-		pcibios_penalize_isa_irq(irq, 1);
-	else
-		flags |= IORESOURCE_DISABLED;
-
-	pnp_add_irq_resource(dev, irq, flags);
-}
-
 static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
 		     int transfer)
 {
@@ -177,21 +107,16 @@ static int dma_flags(struct pnp_dev *dev
 	return flags;
 }
 
-static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
-					       u64 len, int io_decode,
-					       int window)
-{
-	int flags = 0;
-	u64 end = start + len - 1;
+/*
+ * Allocated Resources
+ */
 
-	if (io_decode == ACPI_DECODE_16)
-		flags |= IORESOURCE_IO_16BIT_ADDR;
-	if (len == 0 || end >= 0x10003)
-		flags |= IORESOURCE_DISABLED;
-	if (window)
-		flags |= IORESOURCE_WINDOW;
+static void pnpacpi_add_irqresource(struct pnp_dev *dev, struct resource *r)
+{
+	if (!(r->flags & IORESOURCE_DISABLED))
+		pcibios_penalize_isa_irq(r->start, 1);
 
-	pnp_add_io_resource(dev, start, end, flags);
+	pnp_add_resource(dev, r);
 }
 
 /*
@@ -249,130 +174,49 @@ static void pnpacpi_parse_allocated_vend
 	}
 }
 
-static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
-						u64 start, u64 len,
-						int write_protect, int window)
-{
-	int flags = 0;
-	u64 end = start + len - 1;
-
-	if (len == 0)
-		flags |= IORESOURCE_DISABLED;
-	if (write_protect == ACPI_READ_WRITE_MEMORY)
-		flags |= IORESOURCE_MEM_WRITEABLE;
-	if (window)
-		flags |= IORESOURCE_WINDOW;
-
-	pnp_add_mem_resource(dev, start, end, flags);
-}
-
-static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev,
-						u64 start, u64 len)
-{
-	u64 end = start + len - 1;
-
-	pnp_add_bus_resource(dev, start, end);
-}
-
-static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
-						  struct acpi_resource *res)
-{
-	struct acpi_resource_address64 addr, *p = &addr;
-	acpi_status status;
-	int window;
-	u64 len;
-
-	status = acpi_resource_to_address64(res, p);
-	if (!ACPI_SUCCESS(status)) {
-		dev_warn(&dev->dev, "failed to convert resource type %d\n",
-			 res->type);
-		return;
-	}
-
-	/* Windows apparently computes length rather than using _LEN */
-	len = p->maximum - p->minimum + 1;
-	window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
-
-	if (p->resource_type == ACPI_MEMORY_RANGE)
-		pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
-			p->info.mem.write_protect, window);
-	else if (p->resource_type == ACPI_IO_RANGE)
-		pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
-			p->granularity == 0xfff ? ACPI_DECODE_10 :
-				ACPI_DECODE_16, window);
-	else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
-		pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
-}
-
-static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
-						      struct acpi_resource *res)
-{
-	struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
-	int window;
-	u64 len;
-
-	/* Windows apparently computes length rather than using _LEN */
-	len = p->maximum - p->minimum + 1;
-	window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
-
-	if (p->resource_type == ACPI_MEMORY_RANGE)
-		pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
-			p->info.mem.write_protect, window);
-	else if (p->resource_type == ACPI_IO_RANGE)
-		pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
-			p->granularity == 0xfff ? ACPI_DECODE_10 :
-				ACPI_DECODE_16, window);
-	else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
-		pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
-}
-
 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
 					      void *data)
 {
 	struct pnp_dev *dev = data;
-	struct acpi_resource_irq *irq;
 	struct acpi_resource_dma *dma;
-	struct acpi_resource_io *io;
-	struct acpi_resource_fixed_io *fixed_io;
 	struct acpi_resource_vendor_typed *vendor_typed;
-	struct acpi_resource_memory24 *memory24;
-	struct acpi_resource_memory32 *memory32;
-	struct acpi_resource_fixed_memory32 *fixed_memory32;
-	struct acpi_resource_extended_irq *extended_irq;
+	struct resource r;
 	int i, flags;
 
-	switch (res->type) {
-	case ACPI_RESOURCE_TYPE_IRQ:
-		/*
-		 * Per spec, only one interrupt per descriptor is allowed in
-		 * _CRS, but some firmware violates this, so parse them all.
-		 */
-		irq = &res->data.irq;
-		if (irq->interrupt_count == 0)
-			pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
-		else {
-			for (i = 0; i < irq->interrupt_count; i++) {
-				pnpacpi_parse_allocated_irqresource(dev,
-					irq->interrupts[i],
-					irq->triggering,
-					irq->polarity,
-				    irq->sharable);
-			}
+	if (acpi_dev_resource_memory(res, &r)
+	    || acpi_dev_resource_io(res, &r)
+	    || acpi_dev_resource_address_space(res, &r)
+	    || acpi_dev_resource_ext_address_space(res, &r)) {
+		pnp_add_resource(dev, &r);
+		return AE_OK;
+	}
+
+	r.flags = 0;
+	if (acpi_dev_resource_interrupt(res, 0, &r)) {
+		pnpacpi_add_irqresource(dev, &r);
+		for (i = 1; acpi_dev_resource_interrupt(res, i, &r); i++)
+			pnpacpi_add_irqresource(dev, &r);
 
+		if (i > 1) {
 			/*
 			 * The IRQ encoder puts a single interrupt in each
 			 * descriptor, so if a _CRS descriptor has more than
 			 * one interrupt, we won't be able to re-encode it.
 			 */
-			if (pnp_can_write(dev) && irq->interrupt_count > 1) {
+			if (pnp_can_write(dev)) {
 				dev_warn(&dev->dev, "multiple interrupts in "
 					 "_CRS descriptor; configuration can't "
 					 "be changed\n");
 				dev->capabilities &= ~PNP_WRITE;
 			}
 		}
-		break;
+		return AE_OK;
+	} else if (r.flags & IORESOURCE_DISABLED) {
+		pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
+		return AE_OK;
+	}
 
+	switch (res->type) {
 	case ACPI_RESOURCE_TYPE_DMA:
 		dma = &res->data.dma;
 		if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
@@ -383,26 +227,10 @@ static acpi_status pnpacpi_allocated_res
 		pnp_add_dma_resource(dev, dma->channels[0], flags);
 		break;
 
-	case ACPI_RESOURCE_TYPE_IO:
-		io = &res->data.io;
-		pnpacpi_parse_allocated_ioresource(dev,
-			io->minimum,
-			io->address_length,
-			io->io_decode, 0);
-		break;
-
 	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 		break;
 
-	case ACPI_RESOURCE_TYPE_FIXED_IO:
-		fixed_io = &res->data.fixed_io;
-		pnpacpi_parse_allocated_ioresource(dev,
-			fixed_io->address,
-			fixed_io->address_length,
-			ACPI_DECODE_10, 0);
-		break;
-
 	case ACPI_RESOURCE_TYPE_VENDOR:
 		vendor_typed = &res->data.vendor_typed;
 		pnpacpi_parse_allocated_vendor(dev, vendor_typed);
@@ -411,66 +239,6 @@ static acpi_status pnpacpi_allocated_res
 	case ACPI_RESOURCE_TYPE_END_TAG:
 		break;
 
-	case ACPI_RESOURCE_TYPE_MEMORY24:
-		memory24 = &res->data.memory24;
-		pnpacpi_parse_allocated_memresource(dev,
-			memory24->minimum,
-			memory24->address_length,
-			memory24->write_protect, 0);
-		break;
-	case ACPI_RESOURCE_TYPE_MEMORY32:
-		memory32 = &res->data.memory32;
-		pnpacpi_parse_allocated_memresource(dev,
-			memory32->minimum,
-			memory32->address_length,
-			memory32->write_protect, 0);
-		break;
-	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
-		fixed_memory32 = &res->data.fixed_memory32;
-		pnpacpi_parse_allocated_memresource(dev,
-			fixed_memory32->address,
-			fixed_memory32->address_length,
-			fixed_memory32->write_protect, 0);
-		break;
-	case ACPI_RESOURCE_TYPE_ADDRESS16:
-	case ACPI_RESOURCE_TYPE_ADDRESS32:
-	case ACPI_RESOURCE_TYPE_ADDRESS64:
-		pnpacpi_parse_allocated_address_space(dev, res);
-		break;
-
-	case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
-		pnpacpi_parse_allocated_ext_address_space(dev, res);
-		break;
-
-	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
-		extended_irq = &res->data.extended_irq;
-
-		if (extended_irq->interrupt_count == 0)
-			pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
-		else {
-			for (i = 0; i < extended_irq->interrupt_count; i++) {
-				pnpacpi_parse_allocated_irqresource(dev,
-					extended_irq->interrupts[i],
-					extended_irq->triggering,
-					extended_irq->polarity,
-					extended_irq->sharable);
-			}
-
-			/*
-			 * The IRQ encoder puts a single interrupt in each
-			 * descriptor, so if a _CRS descriptor has more than
-			 * one interrupt, we won't be able to re-encode it.
-			 */
-			if (pnp_can_write(dev) &&
-			    extended_irq->interrupt_count > 1) {
-				dev_warn(&dev->dev, "multiple interrupts in "
-					 "_CRS descriptor; configuration can't "
-					 "be changed\n");
-				dev->capabilities &= ~PNP_WRITE;
-			}
-		}
-		break;
-
 	case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 		break;
 
@@ -531,7 +299,7 @@ static __init void pnpacpi_parse_irq_opt
 		if (p->interrupts[i])
 			__set_bit(p->interrupts[i], map.bits);
 
-	flags = irq_flags(p->triggering, p->polarity, p->sharable);
+	flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->sharable);
 	pnp_register_irq_resource(dev, option_flags, &map, flags);
 }
 
@@ -555,7 +323,7 @@ static __init void pnpacpi_parse_ext_irq
 		}
 	}
 
-	flags = irq_flags(p->triggering, p->polarity, p->sharable);
+	flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->sharable);
 	pnp_register_irq_resource(dev, option_flags, &map, flags);
 }
 
Index: linux/drivers/pnp/base.h
===================================================================
--- linux.orig/drivers/pnp/base.h
+++ linux/drivers/pnp/base.h
@@ -159,6 +159,8 @@ struct pnp_resource {
 
 void pnp_free_resource(struct pnp_resource *pnp_res);
 
+struct pnp_resource *pnp_add_resource(struct pnp_dev *dev,
+				      struct resource *res);
 struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
 					  int flags);
 struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
Index: linux/drivers/pnp/resource.c
===================================================================
--- linux.orig/drivers/pnp/resource.c
+++ linux/drivers/pnp/resource.c
@@ -503,6 +503,22 @@ static struct pnp_resource *pnp_new_reso
 	return pnp_res;
 }
 
+struct pnp_resource *pnp_add_resource(struct pnp_dev *dev,
+				      struct resource *res)
+{
+	struct pnp_resource *pnp_res;
+
+	pnp_res = pnp_new_resource(dev);
+	if (!pnp_res) {
+		dev_err(&dev->dev, "can't add resource %pR\n", res);
+		return NULL;
+	}
+
+	pnp_res->res = *res;
+	dev_dbg(&dev->dev, "%pR\n", res);
+	return pnp_res;
+}
+
 struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
 					  int flags)
 {
Index: linux/include/linux/acpi.h
===================================================================
--- linux.orig/include/linux/acpi.h
+++ linux/include/linux/acpi.h
@@ -251,6 +251,16 @@ extern int pnpacpi_disabled;
 
 #define PXM_INVAL	(-1)
 
+bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
+bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
+bool acpi_dev_resource_address_space(struct acpi_resource *ares,
+				     struct resource *res);
+bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
+					 struct resource *res);
+unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
+bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
+				 struct resource *res);
+
 int acpi_check_resource_conflict(const struct resource *res);
 
 int acpi_check_region(resource_size_t start, resource_size_t n,
