path: root/target/linux/mvebu/patches-3.10/0183-of-irq-Rename-of_irq_map_-functions-to-of_irq_parse_.patch

From fd33285b3dab183df0cea06de9f618886dc0f1c0 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 19 Dec 2013 09:30:54 -0300
Subject: [PATCH 183/203] of/irq: Rename of_irq_map_* functions to
 of_irq_parse_*

The OF irq handling code has been overloading the term 'map' to refer to
both parsing the data in the device tree and mapping it to the internal
linux irq system. This is probably because the device tree does have the
concept of an 'interrupt-map' function for translating interrupt
references from one node to another, but 'map' is still confusing when
the primary purpose of some of the functions are to parse the DT data.

This patch renames all the of_irq_map_* functions to of_irq_parse_*
which makes it clear that there is a difference between the parsing
phase and the mapping phase. Kernel code can make use of just the
parsing or just the mapping support as needed by the subsystem.

The patch was generated mechanically with a handful of sed commands.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Conflicts:
	arch/arm/mach-integrator/pci_v3.c
	arch/mips/pci/pci-rt3883.c
---
 arch/arm/mach-integrator/pci_v3.c              | 279 +++++++++++++++++++++++++
 arch/microblaze/pci/pci-common.c               |   2 +-
 arch/mips/pci/fixup-lantiq.c                   |   2 +-
 arch/powerpc/kernel/pci-common.c               |   2 +-
 arch/powerpc/platforms/cell/celleb_scc_pciex.c |   2 +-
 arch/powerpc/platforms/cell/celleb_scc_sio.c   |   2 +-
 arch/powerpc/platforms/cell/spider-pic.c       |   2 +-
 arch/powerpc/platforms/cell/spu_manage.c       |   2 +-
 arch/powerpc/platforms/fsl_uli1575.c           |   2 +-
 arch/powerpc/platforms/powermac/pic.c          |   2 +-
 arch/powerpc/platforms/pseries/event_sources.c |   2 +-
 arch/powerpc/sysdev/mpic_msi.c                 |   2 +-
 arch/x86/kernel/devicetree.c                   |   2 +-
 drivers/of/address.c                           |   4 +-
 drivers/of/irq.c                               |  28 +--
 drivers/of/of_pci_irq.c                        |  10 +-
 drivers/pci/host/pci-mvebu.c                   |   2 +-
 include/linux/of_irq.h                         |   8 +-
 include/linux/of_pci.h                         |   2 +-
 19 files changed, 318 insertions(+), 39 deletions(-)

--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -610,3 +610,282 @@ void __init pci_v3_postinit(void)
 
 	register_isa_ports(PHYS_PCI_MEM_BASE, PHYS_PCI_IO_BASE, 0);
 }
+
+/*
+ * A small note about bridges and interrupts.  The DECchip 21050 (and
+ * later) adheres to the PCI-PCI bridge specification.  This says that
+ * the interrupts on the other side of a bridge are swizzled in the
+ * following manner:
+ *
+ * Dev    Interrupt   Interrupt
+ *        Pin on      Pin on
+ *        Device      Connector
+ *
+ *   4    A           A
+ *        B           B
+ *        C           C
+ *        D           D
+ *
+ *   5    A           B
+ *        B           C
+ *        C           D
+ *        D           A
+ *
+ *   6    A           C
+ *        B           D
+ *        C           A
+ *        D           B
+ *
+ *   7    A           D
+ *        B           A
+ *        C           B
+ *        D           C
+ *
+ * Where A = pin 1, B = pin 2 and so on and pin=0 = default = A.
+ * Thus, each swizzle is ((pin-1) + (device#-4)) % 4
+ */
+
+/*
+ * This routine handles multiple bridges.
+ */
+static u8 __init pci_v3_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	if (*pinp == 0)
+		*pinp = 1;
+
+	return pci_common_swizzle(dev, pinp);
+}
+
+static int irq_tab[4] __initdata = {
+	IRQ_AP_PCIINT0,	IRQ_AP_PCIINT1,	IRQ_AP_PCIINT2,	IRQ_AP_PCIINT3
+};
+
+/*
+ * map the specified device/slot/pin to an IRQ.  This works out such
+ * that slot 9 pin 1 is INT0, pin 2 is INT1, and slot 10 pin 1 is INT1.
+ */
+static int __init pci_v3_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int intnr = ((slot - 9) + (pin - 1)) & 3;
+
+	return irq_tab[intnr];
+}
+
+static struct hw_pci pci_v3 __initdata = {
+	.swizzle		= pci_v3_swizzle,
+	.setup			= pci_v3_setup,
+	.nr_controllers		= 1,
+	.ops			= &pci_v3_ops,
+	.preinit		= pci_v3_preinit,
+	.postinit		= pci_v3_postinit,
+};
+
+#ifdef CONFIG_OF
+
+static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	struct of_irq oirq;
+	int ret;
+
+	ret = of_irq_parse_pci(dev, &oirq);
+	if (ret) {
+		dev_err(&dev->dev, "of_irq_parse_pci() %d\n", ret);
+		/* Proper return code 0 == NO_IRQ */
+		return 0;
+	}
+
+	return irq_create_of_mapping(oirq.controller, oirq.specifier,
+				     oirq.size);
+}
+
+static int __init pci_v3_dtprobe(struct platform_device *pdev,
+				struct device_node *np)
+{
+	struct of_pci_range_parser parser;
+	struct of_pci_range range;
+	struct resource *res;
+	int irq, ret;
+
+	if (of_pci_range_parser_init(&parser, np))
+		return -EINVAL;
+
+	/* Get base for bridge registers */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "unable to obtain PCIv3 base\n");
+		return -ENODEV;
+	}
+	pci_v3_base = devm_ioremap(&pdev->dev, res->start,
+				   resource_size(res));
+	if (!pci_v3_base) {
+		dev_err(&pdev->dev, "unable to remap PCIv3 base\n");
+		return -ENODEV;
+	}
+
+	/* Get and request error IRQ resource */
+	irq = platform_get_irq(pdev, 0);
+	if (irq <= 0) {
+		dev_err(&pdev->dev, "unable to obtain PCIv3 error IRQ\n");
+		return -ENODEV;
+	}
+	ret = devm_request_irq(&pdev->dev, irq, v3_irq, 0,
+			"PCIv3 error", NULL);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "unable to request PCIv3 error IRQ %d (%d)\n", irq, ret);
+		return ret;
+	}
+
+	for_each_of_pci_range(&parser, &range) {
+		if (!range.flags) {
+			of_pci_range_to_resource(&range, np, &conf_mem);
+			conf_mem.name = "PCIv3 config";
+		}
+		if (range.flags & IORESOURCE_IO) {
+			of_pci_range_to_resource(&range, np, &io_mem);
+			io_mem.name = "PCIv3 I/O";
+		}
+		if ((range.flags & IORESOURCE_MEM) &&
+			!(range.flags & IORESOURCE_PREFETCH)) {
+			non_mem_pci = range.pci_addr;
+			non_mem_pci_sz = range.size;
+			of_pci_range_to_resource(&range, np, &non_mem);
+			non_mem.name = "PCIv3 non-prefetched mem";
+		}
+		if ((range.flags & IORESOURCE_MEM) &&
+			(range.flags & IORESOURCE_PREFETCH)) {
+			pre_mem_pci = range.pci_addr;
+			pre_mem_pci_sz = range.size;
+			of_pci_range_to_resource(&range, np, &pre_mem);
+			pre_mem.name = "PCIv3 prefetched mem";
+		}
+	}
+
+	if (!conf_mem.start || !io_mem.start ||
+	    !non_mem.start || !pre_mem.start) {
+		dev_err(&pdev->dev, "missing ranges in device node\n");
+		return -EINVAL;
+	}
+
+	pci_v3.map_irq = pci_v3_map_irq_dt;
+	pci_common_init_dev(&pdev->dev, &pci_v3);
+
+	return 0;
+}
+
+#else
+
+static inline int pci_v3_dtprobe(struct platform_device *pdev,
+				  struct device_node *np)
+{
+	return -EINVAL;
+}
+
+#endif
+
+static int __init pci_v3_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	int ret;
+
+	/* Remap the Integrator system controller */
+	ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
+	if (!ap_syscon_base) {
+		dev_err(&pdev->dev, "unable to remap the AP syscon for PCIv3\n");
+		return -ENODEV;
+	}
+
+	/* Device tree probe path */
+	if (np)
+		return pci_v3_dtprobe(pdev, np);
+
+	pci_v3_base = devm_ioremap(&pdev->dev, PHYS_PCI_V3_BASE, SZ_64K);
+	if (!pci_v3_base) {
+		dev_err(&pdev->dev, "unable to remap PCIv3 base\n");
+		return -ENODEV;
+	}
+
+	ret = devm_request_irq(&pdev->dev, IRQ_AP_V3INT, v3_irq, 0, "V3", NULL);
+	if (ret) {
+		dev_err(&pdev->dev, "unable to grab PCI error interrupt: %d\n",
+			ret);
+		return -ENODEV;
+	}
+
+	conf_mem.name = "PCIv3 config";
+	conf_mem.start = PHYS_PCI_CONFIG_BASE;
+	conf_mem.end = PHYS_PCI_CONFIG_BASE + SZ_16M - 1;
+	conf_mem.flags = IORESOURCE_MEM;
+
+	io_mem.name = "PCIv3 I/O";
+	io_mem.start = PHYS_PCI_IO_BASE;
+	io_mem.end = PHYS_PCI_IO_BASE + SZ_16M - 1;
+	io_mem.flags = IORESOURCE_MEM;
+
+	non_mem_pci = 0x00000000;
+	non_mem_pci_sz = SZ_256M;
+	non_mem.name = "PCIv3 non-prefetched mem";
+	non_mem.start = PHYS_PCI_MEM_BASE;
+	non_mem.end = PHYS_PCI_MEM_BASE + SZ_256M - 1;
+	non_mem.flags = IORESOURCE_MEM;
+
+	pre_mem_pci = 0x10000000;
+	pre_mem_pci_sz = SZ_256M;
+	pre_mem.name = "PCIv3 prefetched mem";
+	pre_mem.start = PHYS_PCI_PRE_BASE + SZ_256M;
+	pre_mem.end = PHYS_PCI_PRE_BASE + SZ_256M - 1;
+	pre_mem.flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
+
+	pci_v3.map_irq = pci_v3_map_irq;
+
+	pci_common_init_dev(&pdev->dev, &pci_v3);
+
+	return 0;
+}
+
+static const struct of_device_id pci_ids[] = {
+	{ .compatible = "v3,v360epc-pci", },
+	{},
+};
+
+static struct platform_driver pci_v3_driver = {
+	.driver = {
+		.name = "pci-v3",
+		.of_match_table = pci_ids,
+	},
+};
+
+static int __init pci_v3_init(void)
+{
+	return platform_driver_probe(&pci_v3_driver, pci_v3_probe);
+}
+
+subsys_initcall(pci_v3_init);
+
+/*
+ * Static mappings for the PCIv3 bridge
+ *
+ * e8000000	40000000	PCI memory		PHYS_PCI_MEM_BASE	(max 512M)
+ * ec000000	61000000	PCI config space	PHYS_PCI_CONFIG_BASE	(max 16M)
+ * fee00000	60000000	PCI IO			PHYS_PCI_IO_BASE	(max 16M)
+ */
+static struct map_desc pci_v3_io_desc[] __initdata __maybe_unused = {
+	{
+		.virtual	= (unsigned long)PCI_MEMORY_VADDR,
+		.pfn		= __phys_to_pfn(PHYS_PCI_MEM_BASE),
+		.length		= SZ_16M,
+		.type		= MT_DEVICE
+	}, {
+		.virtual	= (unsigned long)PCI_CONFIG_VADDR,
+		.pfn		= __phys_to_pfn(PHYS_PCI_CONFIG_BASE),
+		.length		= SZ_16M,
+		.type		= MT_DEVICE
+	}
+};
+
+int __init pci_v3_early_init(void)
+{
+	iotable_init(pci_v3_io_desc, ARRAY_SIZE(pci_v3_io_desc));
+	vga_base = (unsigned long)PCI_MEMORY_VADDR;
+	pci_map_io_early(__phys_to_pfn(PHYS_PCI_IO_BASE));
+	return 0;
+}
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -217,7 +217,7 @@ int pci_read_irq_line(struct pci_dev *pc
 	memset(&oirq, 0xff, sizeof(oirq));
 #endif
 	/* Try to get a mapping from the device-tree */
-	if (of_irq_map_pci(pci_dev, &oirq)) {
+	if (of_irq_parse_pci(pci_dev, &oirq)) {
 		u8 line, pin;
 
 		/* If that fails, lets fallback to what is in the config
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -28,7 +28,7 @@ int __init pcibios_map_irq(const struct
 	struct of_irq dev_irq;
 	int irq;
 
-	if (of_irq_map_pci(dev, &dev_irq)) {
+	if (of_irq_parse_pci(dev, &dev_irq)) {
 		dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
 			slot, pin);
 		return 0;
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -237,7 +237,7 @@ static int pci_read_irq_line(struct pci_
 	memset(&oirq, 0xff, sizeof(oirq));
 #endif
 	/* Try to get a mapping from the device-tree */
-	if (of_irq_map_pci(pci_dev, &oirq)) {
+	if (of_irq_parse_pci(pci_dev, &oirq)) {
 		u8 line, pin;
 
 		/* If that fails, lets fallback to what is in the config
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -507,7 +507,7 @@ static __init int celleb_setup_pciex(str
 	phb->ops = &scc_pciex_pci_ops;
 
 	/* internal interrupt handler */
-	if (of_irq_map_one(node, 1, &oirq)) {
+	if (of_irq_parse_one(node, 1, &oirq)) {
 		pr_err("PCIEXC:Failed to map irq\n");
 		goto error;
 	}
--- a/arch/powerpc/platforms/cell/celleb_scc_sio.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_sio.c
@@ -53,7 +53,7 @@ static int __init txx9_serial_init(void)
 			if (!(txx9_serial_bitmap & (1<<i)))
 				continue;
 
-			if (of_irq_map_one(node, i, &irq))
+			if (of_irq_parse_one(node, i, &irq))
 				continue;
 			if (of_address_to_resource(node,
 				txx9_scc_tab[i].index, &res))
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -236,7 +236,7 @@ static unsigned int __init spider_find_c
 	 * tree in case the device-tree is ever fixed
 	 */
 	struct of_irq oirq;
-	if (of_irq_map_one(pic->host->of_node, 0, &oirq) == 0) {
+	if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0) {
 		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 					     oirq.size);
 		return virq;
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -182,7 +182,7 @@ static int __init spu_map_interrupts(str
 	int i;
 
 	for (i=0; i < 3; i++) {
-		ret = of_irq_map_one(np, i, &oirq);
+		ret = of_irq_parse_one(np, i, &oirq);
 		if (ret) {
 			pr_debug("spu_new: failed to get irq %d\n", i);
 			goto err;
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -333,7 +333,7 @@ static void hpcd_final_uli5288(struct pc
 
 	laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
 	laddr[1] = laddr[2] = 0;
-	of_irq_map_raw(hosenode, &pin, 1, laddr, &oirq);
+	of_irq_parse_raw(hosenode, &pin, 1, laddr, &oirq);
 	virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 				     oirq.size);
 	dev->irq = virq;
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -393,7 +393,7 @@ static void __init pmac_pic_probe_oldsty
 #endif
 }
 
-int of_irq_map_oldworld(struct device_node *device, int index,
+int of_irq_parse_oldworld(struct device_node *device, int index,
 			struct of_irq *out_irq)
 {
 	const u32 *ints = NULL;
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -55,7 +55,7 @@ void request_event_sources_irqs(struct d
 	/* Else use normal interrupt tree parsing */
 	else {
 		/* First try to do a proper OF tree parsing */
-		for (index = 0; of_irq_map_one(np, index, &oirq) == 0;
+		for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
 		     index++) {
 			if (count > 15)
 				break;
--- a/arch/powerpc/sysdev/mpic_msi.c
+++ b/arch/powerpc/sysdev/mpic_msi.c
@@ -63,7 +63,7 @@ static int mpic_msi_reserve_u3_hwirqs(st
 		pr_debug("mpic: mapping hwirqs for %s\n", np->full_name);
 
 		index = 0;
-		while (of_irq_map_one(np, index++, &oirq) == 0) {
+		while (of_irq_parse_one(np, index++, &oirq) == 0) {
 			ops->xlate(mpic->irqhost, NULL, oirq.specifier,
 						oirq.size, &hwirq, &flags);
 			msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, hwirq);
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -117,7 +117,7 @@ static int x86_of_pci_irq_enable(struct
 	if (!pin)
 		return 0;
 
-	ret = of_irq_map_pci(dev, &oirq);
+	ret = of_irq_parse_pci(dev, &oirq);
 	if (ret)
 		return ret;
 
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -524,12 +524,12 @@ static u64 __of_translate_address(struct
 		pbus->count_cells(dev, &pna, &pns);
 		if (!OF_CHECK_COUNTS(pna, pns)) {
 			printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
-			       dev->full_name);
+			       of_node_full_name(dev));
 			break;
 		}
 
 		pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
-		    pbus->name, pna, pns, parent->full_name);
+		    pbus->name, pna, pns, of_node_full_name(parent));
 
 		/* Apply bus translation */
 		if (of_translate_one(dev, bus, pbus, addr, na, ns, pna, rprop))
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -31,14 +31,14 @@
  * @dev: Device node of the device whose interrupt is to be mapped
  * @index: Index of the interrupt to map
  *
- * This function is a wrapper that chains of_irq_map_one() and
+ * This function is a wrapper that chains of_irq_parse_one() and
  * irq_create_of_mapping() to make things easier to callers
  */
 unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
 {
 	struct of_irq oirq;
 
-	if (of_irq_map_one(dev, index, &oirq))
+	if (of_irq_parse_one(dev, index, &oirq))
 		return 0;
 
 	return irq_create_of_mapping(oirq.controller, oirq.specifier,
@@ -79,7 +79,7 @@ struct device_node *of_irq_find_parent(s
 }
 
 /**
- * of_irq_map_raw - Low level interrupt tree parsing
+ * of_irq_parse_raw - Low level interrupt tree parsing
  * @parent:	the device interrupt parent
  * @intspec:	interrupt specifier ("interrupts" property of the device)
  * @ointsize:   size of the passed in interrupt specifier
@@ -93,7 +93,7 @@ struct device_node *of_irq_find_parent(s
  * properties, for example when resolving PCI interrupts when no device
  * node exist for the parent.
  */
-int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
+int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 		   u32 ointsize, const __be32 *addr, struct of_irq *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
@@ -101,7 +101,7 @@ int of_irq_map_raw(struct device_node *p
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
-	pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
+	pr_debug("of_irq_parse_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
 		 of_node_full_name(parent), be32_to_cpup(intspec),
 		 be32_to_cpup(intspec + 1), ointsize);
 
@@ -126,7 +126,7 @@ int of_irq_map_raw(struct device_node *p
 		goto fail;
 	}
 
-	pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
+	pr_debug("of_irq_parse_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
 
 	if (ointsize != intsize)
 		return -EINVAL;
@@ -269,29 +269,29 @@ int of_irq_map_raw(struct device_node *p
 
 	return -EINVAL;
 }
-EXPORT_SYMBOL_GPL(of_irq_map_raw);
+EXPORT_SYMBOL_GPL(of_irq_parse_raw);
 
 /**
- * of_irq_map_one - Resolve an interrupt for a device
+ * of_irq_parse_one - Resolve an interrupt for a device
  * @device: the device whose interrupt is to be resolved
  * @index: index of the interrupt to resolve
  * @out_irq: structure of_irq filled by this function
  *
  * This function resolves an interrupt, walking the tree, for a given
- * device-tree node. It's the high level pendant to of_irq_map_raw().
+ * device-tree node. It's the high level pendant to of_irq_parse_raw().
  */
-int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq)
+int of_irq_parse_one(struct device_node *device, int index, struct of_irq *out_irq)
 {
 	struct device_node *p;
 	const __be32 *intspec, *tmp, *addr;
 	u32 intsize, intlen;
 	int res = -EINVAL;
 
-	pr_debug("of_irq_map_one: dev=%s, index=%d\n", of_node_full_name(device), index);
+	pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
 
 	/* OldWorld mac stuff is "special", handle out of line */
 	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
-		return of_irq_map_oldworld(device, index, out_irq);
+		return of_irq_parse_oldworld(device, index, out_irq);
 
 	/* Get the reg property (if any) */
 	addr = of_get_property(device, "reg", NULL);
@@ -328,13 +328,13 @@ int of_irq_map_one(struct device_node *d
 		goto out;
 
 	/* Get new specifier and map it */
-	res = of_irq_map_raw(p, intspec + index * intsize, intsize,
+	res = of_irq_parse_raw(p, intspec + index * intsize, intsize,
 			     addr, out_irq);
  out:
 	of_node_put(p);
 	return res;
 }
-EXPORT_SYMBOL_GPL(of_irq_map_one);
+EXPORT_SYMBOL_GPL(of_irq_parse_one);
 
 /**
  * of_irq_to_resource - Decode a node's IRQ and return it as a resource
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -5,7 +5,7 @@
 #include <asm/prom.h>
 
 /**
- * of_irq_map_pci - Resolve the interrupt for a PCI device
+ * of_irq_parse_pci - Resolve the interrupt for a PCI device
  * @pdev:       the device whose interrupt is to be resolved
  * @out_irq:    structure of_irq filled by this function
  *
@@ -15,7 +15,7 @@
  * PCI tree until an device-node is found, at which point it will finish
  * resolving using the OF tree walking.
  */
-int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
 {
 	struct device_node *dn, *ppnode;
 	struct pci_dev *ppdev;
@@ -30,7 +30,7 @@ int of_irq_map_pci(const struct pci_dev
 	 */
 	dn = pci_device_to_OF_node(pdev);
 	if (dn) {
-		rc = of_irq_map_one(dn, 0, out_irq);
+		rc = of_irq_parse_one(dn, 0, out_irq);
 		if (!rc)
 			return rc;
 	}
@@ -88,6 +88,6 @@ int of_irq_map_pci(const struct pci_dev
 	lspec_be = cpu_to_be32(lspec);
 	laddr[0] = cpu_to_be32((pdev->bus->number << 16) | (pdev->devfn << 8));
 	laddr[1]  = laddr[2] = cpu_to_be32(0);
-	return of_irq_map_raw(ppnode, &lspec_be, 1, laddr, out_irq);
+	return of_irq_parse_raw(ppnode, &lspec_be, 1, laddr, out_irq);
 }
-EXPORT_SYMBOL_GPL(of_irq_map_pci);
+EXPORT_SYMBOL_GPL(of_irq_parse_pci);
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -652,7 +652,7 @@ static int __init mvebu_pcie_map_irq(con
 	struct of_irq oirq;
 	int ret;
 
-	ret = of_irq_map_pci(dev, &oirq);
+	ret = of_irq_parse_pci(dev, &oirq);
 	if (ret)
 		return ret;
 
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -35,12 +35,12 @@ typedef int (*of_irq_init_cb_t)(struct d
 #if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
 extern unsigned int of_irq_workarounds;
 extern struct device_node *of_irq_dflt_pic;
-extern int of_irq_map_oldworld(struct device_node *device, int index,
+extern int of_irq_parse_oldworld(struct device_node *device, int index,
 			       struct of_irq *out_irq);
 #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
 #define of_irq_workarounds (0)
 #define of_irq_dflt_pic (NULL)
-static inline int of_irq_map_oldworld(struct device_node *device, int index,
+static inline int of_irq_parse_oldworld(struct device_node *device, int index,
 				      struct of_irq *out_irq)
 {
 	return -EINVAL;
@@ -48,10 +48,10 @@ static inline int of_irq_map_oldworld(st
 #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
 
 
-extern int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
+extern int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 			  u32 ointsize, const __be32 *addr,
 			  struct of_irq *out_irq);
-extern int of_irq_map_one(struct device_node *device, int index,
+extern int of_irq_parse_one(struct device_node *device, int index,
 			  struct of_irq *out_irq);
 extern unsigned int irq_create_of_mapping(struct device_node *controller,
 					  const u32 *intspec,
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -6,7 +6,7 @@
 
 struct pci_dev;
 struct of_irq;
-int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
 
 struct device_node;
 struct device_node *of_pci_find_child_device(struct device_node *parent,