Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Add in PCI bus for DMA API debugging.
  sh: Pre-allocate a reasonable number of DMA debug entries.
  sh: sh7786: modify usb setup timeout judgment bug.
  MAINTAINERS: Update sh architecture file patterns.
  sh: ap325: use edge control for ov772x camera
  sh: Plug in support for ARCH=sh64 using sh SRCARCH.
  sh: urquell: Fix up address mapping in board comments.
  sh: Add support for DMA API debugging.
  sh: Provide cpumask_of_pcibus() to fix NUMA build.
  sh: urquell: Add board comment
  sh: wire up sys_preadv/sys_pwritev() syscalls.
  sh: sh7785lcr: fix PCI address map for 32-bit mode
  sh: intc: Added resume from hibernation support to the intc

18 files changed, 179 insertions, 35 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 29d74f47ba86..57969bf67b94 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5313,7 +5313,9 @@ L:	linux-sh@vger.kernel.org
 W:	http://www.linux-sh.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.git
 S:	Supported
+F:	Documentation/sh/
 F:	arch/sh/
+F:	drivers/sh/
 
 SUSPEND TO RAM
 P:	Len Brown
diff --git a/Makefile b/Makefile
index ad830bd45a4b..4f7e3ccde05b 100644
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,7 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 				  -e s/arm.*/arm/ -e s/sa110/arm/ \
 				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
 				  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-				  -e s/sh.*/sh/ )
+				  -e s/sh[234].*/sh/ )
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------
@@ -210,6 +210,11 @@ ifeq ($(ARCH),sparc64)
        SRCARCH := sparc
 endif
 
+# Additional ARCH settings for sh
+ifeq ($(ARCH),sh64)
+       SRCARCH := sh
+endif
+
 # Where to locate arch specific headers
 hdr-arch  := $(SRCARCH)
 
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5e4babecf934..e7390dd0283d 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -14,6 +14,7 @@ config SUPERH
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_IOREMAP_PROT if MMU
 	select HAVE_ARCH_TRACEHOOK
+	select HAVE_DMA_API_DEBUG
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
@@ -21,7 +22,7 @@ config SUPERH
 	  <http://www.linux-sh.org/>.
 
 config SUPERH32
-	def_bool !SUPERH64
+	def_bool ARCH = "sh"
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
 	select HAVE_FUNCTION_TRACER
@@ -31,7 +32,7 @@ config SUPERH32
 	select ARCH_HIBERNATION_POSSIBLE if MMU
 
 config SUPERH64
-	def_bool y if CPU_SH5
+	def_bool ARCH = "sh64"
 
 config ARCH_DEFCONFIG
 	string
@@ -187,6 +188,8 @@ config ARCH_SHMOBILE
 	bool
 	select ARCH_SUSPEND_POSSIBLE
 
+if SUPERH32
+
 choice
 	prompt "Processor sub-type selection"
 
@@ -408,6 +411,15 @@ config CPU_SUBTYPE_SH7366
 	select SYS_SUPPORTS_NUMA
 	select SYS_SUPPORTS_CMT
 
+endchoice
+
+endif
+
+if SUPERH64
+
+choice
+	prompt "Processor sub-type selection"
+
 # SH-5 Processor Support
 
 config CPU_SUBTYPE_SH5_101
@@ -420,6 +432,8 @@ config CPU_SUBTYPE_SH5_103
 
 endchoice
 
+endif
+
 source "arch/sh/mm/Kconfig"
  
 source "arch/sh/Kconfig.cpu"
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 912458f666eb..39e46919df14 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -349,6 +349,7 @@ static int ov7725_power(struct device *dev, int mode)
 static struct ov772x_camera_info ov7725_info = {
 	.buswidth  = SOCAM_DATAWIDTH_8,
 	.flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
+	.edgectrl = OV772X_AUTO_EDGECTRL(0xf, 0),
 	.link = {
 		.power  = ov7725_power,
 	},
diff --git a/arch/sh/boards/board-urquell.c b/arch/sh/boards/board-urquell.c
index 8367d1d789c3..beb88c4da2c1 100644
--- a/arch/sh/boards/board-urquell.c
+++ b/arch/sh/boards/board-urquell.c
@@ -2,6 +2,8 @@
  * Renesas Technology Corp. SH7786 Urquell Support.
  *
  * Copyright (C) 2008  Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * Based on board-sh7785lcr.c
  * Copyright (C) 2008  Yoshihiro Shimoda
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -21,6 +23,32 @@
 #include <asm/heartbeat.h>
 #include <asm/sizes.h>
 
+/*
+ * bit  1234 5678
+ *----------------------------
+ * SW1  0101 0010  -> Pck 33MHz version
+ *     (1101 0010)    Pck 66MHz version
+ * SW2  0x1x xxxx  -> little endian
+ *                    29bit mode
+ * SW47 0001 1000  -> CS0 : on-board flash
+ *                    CS1 : SRAM, registers, LAN, PCMCIA
+ *                    38400 bps for SCIF1
+ *
+ * Address
+ * 0x00000000 - 0x04000000  (CS0)     Nor Flash
+ * 0x04000000 - 0x04200000  (CS1)     SRAM
+ * 0x05000000 - 0x05800000  (CS1)     on board register
+ * 0x05800000 - 0x06000000  (CS1)     LAN91C111
+ * 0x06000000 - 0x06400000  (CS1)     PCMCIA
+ * 0x08000000 - 0x10000000  (CS2-CS3) DDR3
+ * 0x10000000 - 0x14000000  (CS4)     PCIe
+ * 0x14000000 - 0x14800000  (CS5)     Core0 LRAM/URAM
+ * 0x14800000 - 0x15000000  (CS5)     Core1 LRAM/URAM
+ * 0x18000000 - 0x1C000000  (CS6)     ATA/NAND-Flash
+ * 0x1C000000 -             (CS7)     SH7786 Control register
+ */
+
+/* HeartBeat */
 static struct resource heartbeat_resources[] = {
 	[0] = {
 		.start	= BOARDREG(SLEDR),
@@ -43,6 +71,7 @@ static struct platform_device heartbeat_device = {
 	.resource	= heartbeat_resources,
 };
 
+/* LAN91C111 */
 static struct smc91x_platdata smc91x_info = {
 	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 };
@@ -69,6 +98,7 @@ static struct platform_device smc91x_eth_device = {
 	},
 };
 
+/* Nor Flash */
 static struct mtd_partition nor_flash_partitions[] = {
 	{
 		.name		= "loader",
diff --git a/arch/sh/drivers/pci/ops-sh7785lcr.c b/arch/sh/drivers/pci/ops-sh7785lcr.c
index e8b7446a7c2b..fb0869f0bef8 100644
--- a/arch/sh/drivers/pci/ops-sh7785lcr.c
+++ b/arch/sh/drivers/pci/ops-sh7785lcr.c
@@ -48,8 +48,13 @@ EXPORT_SYMBOL(board_pci_channels);
 
 static struct sh4_pci_address_map sh7785_pci_map = {
 	.window0	= {
+#if defined(CONFIG_32BIT)
+		.base	= SH7780_32BIT_DDR_BASE_ADDR,
+		.size	= 0x40000000,
+#else
 		.base	= SH7780_CS0_BASE_ADDR,
 		.size	= 0x20000000,
+#endif
 	},
 
 	.flags	= SH4_PCIC_NO_RESET,
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 97b2c98f05c4..93adc7119b79 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -104,6 +104,8 @@
 #define SH7780_CS5_BASE_ADDR	(SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE)
 #define SH7780_CS6_BASE_ADDR	(SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE)
 
+#define SH7780_32BIT_DDR_BASE_ADDR	0x40000000
+
 struct sh4_pci_address_map;
 
 /* arch/sh/drivers/pci/pci-sh7780.c */
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index e36c7b870861..0d6ac7a1db49 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/dma-debug.h>
 #include <asm/io.h>
 
 static int __init pcibios_init(void)
@@ -43,6 +44,8 @@ static int __init pcibios_init(void)
 
 	pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
 
+	dma_debug_add_bus(&pci_bus_type);
+
 	return 0;
 }
 subsys_initcall(pcibios_init);
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 627315ecdb52..ea9d4f41c9d2 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -3,6 +3,7 @@
 
 #include <linux/mm.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
 #include <asm/cacheflush.h>
 #include <asm/io.h>
 #include <asm-generic/dma-coherent.h>
@@ -38,16 +39,26 @@ static inline dma_addr_t dma_map_single(struct device *dev,
 					void *ptr, size_t size,
 					enum dma_data_direction dir)
 {
+	dma_addr_t addr = virt_to_phys(ptr);
+
 #if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
 	if (dev->bus == &pci_bus_type)
-		return virt_to_phys(ptr);
+		return addr;
 #endif
 	dma_cache_sync(dev, ptr, size, dir);
 
-	return virt_to_phys(ptr);
+	debug_dma_map_page(dev, virt_to_page(ptr),
+			   (unsigned long)ptr & ~PAGE_MASK, size,
+			   dir, addr, true);
+
+	return addr;
 }
 
-#define dma_unmap_single(dev, addr, size, dir)	do { } while (0)
+static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
+				    size_t size, enum dma_data_direction dir)
+{
+	debug_dma_unmap_page(dev, addr, size, dir, true);
+}
 
 static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
 			     int nents, enum dma_data_direction dir)
@@ -59,12 +70,19 @@ static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
 		dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
 #endif
 		sg[i].dma_address = sg_phys(&sg[i]);
+		sg[i].dma_length = sg[i].length;
 	}
 
+	debug_dma_map_sg(dev, sg, nents, i, dir);
+
 	return nents;
 }
 
-#define dma_unmap_sg(dev, sg, nents, dir)	do { } while (0)
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+				int nents, enum dma_data_direction dir)
+{
+	debug_dma_unmap_sg(dev, sg, nents, dir);
+}
 
 static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
 				      unsigned long offset, size_t size,
@@ -111,6 +129,7 @@ static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
 		dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
 #endif
 		sg[i].dma_address = sg_phys(&sg[i]);
+		sg[i].dma_length = sg[i].length;
 	}
 }
 
@@ -119,6 +138,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev,
 					   enum dma_data_direction dir)
 {
 	dma_sync_single(dev, dma_handle, size, dir);
+	debug_dma_sync_single_for_cpu(dev, dma_handle, size, dir);
 }
 
 static inline void dma_sync_single_for_device(struct device *dev,
@@ -127,6 +147,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
 					      enum dma_data_direction dir)
 {
 	dma_sync_single(dev, dma_handle, size, dir);
+	debug_dma_sync_single_for_device(dev, dma_handle, size, dir);
 }
 
 static inline void dma_sync_single_range_for_cpu(struct device *dev,
@@ -136,6 +157,8 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev,
 						 enum dma_data_direction direction)
 {
 	dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+	debug_dma_sync_single_range_for_cpu(dev, dma_handle,
+					    offset, size, direction);
 }
 
 static inline void dma_sync_single_range_for_device(struct device *dev,
@@ -145,6 +168,8 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
 						    enum dma_data_direction direction)
 {
 	dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
+	debug_dma_sync_single_range_for_device(dev, dma_handle,
+					       offset, size, direction);
 }
 
 
@@ -153,6 +178,7 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
 				       enum dma_data_direction dir)
 {
 	dma_sync_sg(dev, sg, nelems, dir);
+	debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
 }
 
 static inline void dma_sync_sg_for_device(struct device *dev,
@@ -160,9 +186,9 @@ static inline void dma_sync_sg_for_device(struct device *dev,
 					  enum dma_data_direction dir)
 {
 	dma_sync_sg(dev, sg, nelems, dir);
+	debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
 }
 
-
 static inline int dma_get_cache_alignment(void)
 {
 	/*
diff --git a/arch/sh/include/asm/scatterlist.h b/arch/sh/include/asm/scatterlist.h
index 2084d0373693..c693d268a413 100644
--- a/arch/sh/include/asm/scatterlist.h
+++ b/arch/sh/include/asm/scatterlist.h
@@ -5,12 +5,13 @@
 
 struct scatterlist {
 #ifdef CONFIG_DEBUG_SG
-    unsigned long sg_magic;
+	unsigned long	sg_magic;
 #endif
-    unsigned long page_link;
-    unsigned int offset;/* for highmem, page offset */
-    dma_addr_t dma_address;
-    unsigned int length;
+	unsigned long	page_link;
+	unsigned int	offset;		/* for highmem, page offset */
+	unsigned int	length;
+	dma_addr_t	dma_address;
+	unsigned int	dma_length;
 };
 
 #define ISA_DMA_THRESHOLD	PHYS_ADDR_MASK
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index a3f239545897..8489a0905a87 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -37,8 +37,11 @@
 #define pcibus_to_node(bus)	((void)(bus), -1)
 #define pcibus_to_cpumask(bus)	(pcibus_to_node(bus) == -1 ? \
 					CPU_MASK_ALL : \
-					node_to_cpumask(pcibus_to_node(bus)) \
-				)
+					node_to_cpumask(pcibus_to_node(bus)))
+#define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ? \
+					CPU_MASK_ALL_PTR : \
+					cpumask_of_node(pcibus_to_node(bus)))
+
 #endif
 
 #include <asm-generic/topology.h>
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index d52c000cf924..2efb819e2db3 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -341,8 +341,10 @@
 #define __NR_dup3		330
 #define __NR_pipe2		331
 #define __NR_inotify_init1	332
+#define __NR_preadv		333
+#define __NR_pwritev		334
 
-#define NR_syscalls 333
+#define NR_syscalls 335
 
 #ifdef __KERNEL__
 
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index 7c54e91753c1..6eb9d2934c0f 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -381,10 +381,12 @@
 #define __NR_dup3		358
 #define __NR_pipe2		359
 #define __NR_inotify_init1	360
+#define __NR_preadv		361
+#define __NR_pwritev		362
 
 #ifdef __KERNEL__
 
-#define NR_syscalls 361
+#define NR_syscalls 363
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 5a47e1cf442e..90e8cfff55fd 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -143,14 +143,14 @@ static void __init sh7786_usb_setup(void)
 	 * Set the PHY and PLL enable bit
 	 */
 	__raw_writel(PHY_ENB | PLL_ENB, USBPCTL1);
-	while (i-- &&
-	       ((__raw_readl(USBST) & ACT_PLL_STATUS) != ACT_PLL_STATUS))
+	while (i--) {
+		if (ACT_PLL_STATUS == (__raw_readl(USBST) & ACT_PLL_STATUS)) {
+			/* Set the PHY RST bit */
+			__raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
+			printk(KERN_INFO "sh7786 usb setup done\n");
+			break;
+		}
 		cpu_relax();
-
-	if (i) {
-		/* Set the PHY RST bit */
-		__raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
-		printk(KERN_INFO "sh7786 usb setup done\n");
 	}
 }
 
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index e67c1733e1b9..05202edd8e21 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -349,3 +349,5 @@ ENTRY(sys_call_table)
 	.long sys_dup3			/* 330 */
 	.long sys_pipe2
 	.long sys_inotify_init1
+	.long sys_preadv
+	.long sys_writev
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index 557cb91f5caf..a083609f9284 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -387,3 +387,5 @@ sys_call_table:
 	.long sys_dup3
 	.long sys_pipe2
 	.long sys_inotify_init1		/* 360 */
+	.long sys_preadv
+	.long sys_pwritev
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index edcd5fbf9651..e098ec158ddb 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -10,11 +10,22 @@
  * for more details.
  */
 #include <linux/mm.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/dma-debug.h>
+#include <linux/io.h>
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
-#include <asm/io.h>
+
+#define PREALLOC_DMA_DEBUG_ENTRIES	4096
+
+static int __init dma_init(void)
+{
+	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+	return 0;
+}
+fs_initcall(dma_init);
 
 void *dma_alloc_coherent(struct device *dev, size_t size,
 			   dma_addr_t *dma_handle, gfp_t gfp)
@@ -45,6 +56,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
 
 	*dma_handle = virt_to_phys(ret);
+
+	debug_dma_alloc_coherent(dev, size, *dma_handle, ret_nocache);
+
 	return ret_nocache;
 }
 EXPORT_SYMBOL(dma_alloc_coherent);
@@ -56,12 +70,15 @@ void dma_free_coherent(struct device *dev, size_t size,
 	unsigned long pfn = dma_handle >> PAGE_SHIFT;
 	int k;
 
-	if (!dma_release_from_coherent(dev, order, vaddr)) {
-		WARN_ON(irqs_disabled());	/* for portability */
-		for (k = 0; k < (1 << order); k++)
-			__free_pages(pfn_to_page(pfn + k), 0);
-		iounmap(vaddr);
-	}
+	WARN_ON(irqs_disabled());	/* for portability */
+
+	if (dma_release_from_coherent(dev, order, vaddr))
+		return;
+
+	debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+	for (k = 0; k < (1 << order); k++)
+		__free_pages(pfn_to_page(pfn + k), 0);
+	iounmap(vaddr);
 }
 EXPORT_SYMBOL(dma_free_coherent);
 
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 7fb9b5c4669a..12d13d99b6f0 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -44,6 +44,7 @@ struct intc_handle_int {
 struct intc_desc_int {
 	struct list_head list;
 	struct sys_device sysdev;
+	pm_message_t state;
 	unsigned long *reg;
 #ifdef CONFIG_SMP
 	unsigned long *smp;
@@ -786,18 +787,44 @@ static int intc_suspend(struct sys_device *dev, pm_message_t state)
 	/* get intc controller associated with this sysdev */
 	d = container_of(dev, struct intc_desc_int, sysdev);
 
-	/* enable wakeup irqs belonging to this intc controller */
-	for_each_irq_desc(irq, desc) {
-		if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
-			intc_enable(irq);
+	switch (state.event) {
+	case PM_EVENT_ON:
+		if (d->state.event != PM_EVENT_FREEZE)
+			break;
+		for_each_irq_desc(irq, desc) {
+			if (desc->chip != &d->chip)
+				continue;
+			if (desc->status & IRQ_DISABLED)
+				intc_disable(irq);
+			else
+				intc_enable(irq);
+		}
+		break;
+	case PM_EVENT_FREEZE:
+		/* nothing has to be done */
+		break;
+	case PM_EVENT_SUSPEND:
+		/* enable wakeup irqs belonging to this intc controller */
+		for_each_irq_desc(irq, desc) {
+			if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
+				intc_enable(irq);
+		}
+		break;
 	}
+	d->state = state;
 
 	return 0;
 }
 
+static int intc_resume(struct sys_device *dev)
+{
+	return intc_suspend(dev, PMSG_ON);
+}
+
 static struct sysdev_class intc_sysdev_class = {
 	.name = "intc",
 	.suspend = intc_suspend,
+	.resume = intc_resume,
 };
 
 /* register this intc as sysdev to allow suspend/resume */