[PATCH] PowerMac: Ground work for new driver model

This provides the necessary infrastructure for PowerMac specific drivers
(and actually some Open Firmware platform drivers on non-PowerMacs as
well provided somebody port them) to be properly probed & referenced via
the new driver model and be part of sysfs.

As-is, this patch doesn't break anything nor change any driver.  I'll
send you individual driver patches as I clean them up & get them tested
on as many machines as possible, though I don't expect much problems.

arch/ppc/platforms/pmac_feature.c

@@ -38,7 +38,6 @@
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/machdep.h>
-#include <asm/macio_asic.h>
 #include <asm/pmac_feature.h>
 #include <asm/dbdma.h>
 #include <asm/pci-bridge.h>
@@ -2187,6 +2186,8 @@ probe_macios(void)
 		macio_chips[0] = macio_chips[1];
 		macio_chips[1] = temp;
 	}
+	macio_chips[0].lbus.index = 0;
+	macio_chips[1].lbus.index = 1;
 
 	return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
 }

arch/ppc/platforms/pmac_setup.c

@@ -69,6 +69,7 @@
 #include <asm/btext.h>
 #include <asm/pmac_feature.h>
 #include <asm/time.h>
+#include <asm/of_device.h>
 #include "pmac_pic.h"
 #include "mem_pieces.h"
 
@@ -670,3 +671,29 @@ pmac_progress(char *s, unsigned short hex)
 	}
 }
 #endif /* CONFIG_BOOTX_TEXT */
+
+static int __init
+pmac_declare_of_platform_devices(void)
+{
+	struct device_node *np;
+
+	np = find_devices("uni-n");
+	if (np) {
+		for (np = np->child; np != NULL; np = np->sibling)
+			if (strncmp(np->name, "i2c", 3) == 0) {
+				of_platform_device_create(np, "uni-n-i2c");
+				break;
+			}
+	}
+
+	np = find_devices("valkyrie");
+	if (np)
+		of_platform_device_create(np, "valkyrie");
+	np = find_devices("platinum");
+	if (np)
+		of_platform_device_create(np, "platinum");
+
+	return 0;
+}
+
+device_initcall(pmac_declare_of_platform_devices);

arch/ppc/syslib/Makefile

@@ -27,7 +27,7 @@ obj-$(CONFIG_8xx)		+= m8xx_setup.o ppc8xx_pic.o
 ifeq ($(CONFIG_8xx),y)
 obj-$(CONFIG_PCI)		+= qspan_pci.o i8259.o
 endif
-obj-$(CONFIG_PPC_OF)		+= prom_init.o prom.o
+obj-$(CONFIG_PPC_OF)		+= prom_init.o prom.o of_device.o
 obj-$(CONFIG_PPC_PMAC)		+= open_pic.o indirect_pci.o
 obj-$(CONFIG_PPC_CHRP)		+= open_pic.o indirect_pci.o i8259.o
 obj-$(CONFIG_PPC_PREP)		+= open_pic.o indirect_pci.o i8259.o

arch/ppc/syslib/of_device.c

+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <asm/errno.h>
+#include <asm/of_device.h>
+
+/**
+ * of_match_device - Tell if an of_device structure has a matching
+ * of_match structure
+ * @ids: array of of device match structures to search in
+ * @dev: the of device structure to match against
+ * 
+ * Used by a driver to check whether an of_device present in the
+ * system is in its list of supported devices. 
+ */
+const struct of_match *
+of_match_device(const struct of_match *matches, const struct of_device *dev)
+{
+	if (!dev->node)
+		return NULL;
+	while (matches->name || matches->type || matches->compatible) {
+		int match = 1;
+		if (matches->name && matches->name != OF_ANY_MATCH)
+			match &= dev->node->name
+				&& !strcmp(matches->name, dev->node->name);
+		if (matches->type && matches->type != OF_ANY_MATCH)
+			match &= dev->node->type
+				&& !strcmp(matches->type, dev->node->type);
+		if (matches->compatible && matches->compatible != OF_ANY_MATCH)
+			match &= device_is_compatible(dev->node,
+				matches->compatible);
+		if (match)
+			return matches;
+		matches++;
+	}
+	return NULL;
+}
+
+static int
+of_platform_bus_match(struct device *dev, struct device_driver *drv) 
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * of_drv = to_of_platform_driver(drv);
+	const struct of_match * matches = of_drv->match_table;
+
+	if (!matches) 
+		return 0;
+
+	return of_match_device(matches, of_dev) != NULL;
+}
+
+struct bus_type of_platform_bus_type = {
+       name:	"of_platform",
+       match:	of_platform_bus_match,
+};
+
+static int __init
+of_bus_driver_init(void)
+{
+	return bus_register(&of_platform_bus_type);
+}
+
+postcore_initcall(of_bus_driver_init);
+
+static int
+of_device_probe(struct device *dev)
+{
+	int error = -ENODEV;
+	struct of_platform_driver *drv;
+	struct of_device *of_dev;
+	const struct of_match *match;
+
+	drv = to_of_platform_driver(dev->driver);
+	of_dev = to_of_device(dev);
+
+	if (!drv->probe)
+		return error;
+
+/*	if (!try_module_get(driver->owner)) {
+		printk(KERN_ERR "Can't get a module reference for %s\n", driver->name);
+		return error;
+	}
+*/
+	match = of_match_device(drv->match_table, of_dev);
+	if (match)
+		error = drv->probe(of_dev, match);
+/*
+ 	module_put(driver->owner);
+*/	
+	return error;
+}
+
+static int
+of_device_remove(struct device *dev)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * drv = to_of_platform_driver(of_dev->dev.driver);
+
+	if (drv && drv->remove)
+		drv->remove(of_dev);
+	return 0;
+}
+
+static int
+of_device_suspend(struct device *dev, u32 state, u32 level)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * drv = to_of_platform_driver(of_dev->dev.driver);
+	int error = 0;
+
+	if (drv && drv->suspend)
+		error = drv->suspend(of_dev, state, level);
+	return error;
+}
+
+static int
+of_device_resume(struct device * dev, u32 level)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * drv = to_of_platform_driver(of_dev->dev.driver);
+	int error = 0;
+
+	if (drv && drv->resume)
+		error = drv->resume(of_dev, level);
+	return error;
+}
+
+int
+of_register_driver(struct of_platform_driver *drv)
+{
+	int count = 0;
+
+	/* initialize common driver fields */
+	drv->driver.name = drv->name;
+	drv->driver.bus = &of_platform_bus_type;
+	drv->driver.probe = of_device_probe;
+	drv->driver.resume = of_device_resume;
+	drv->driver.suspend = of_device_suspend;
+	drv->driver.remove = of_device_remove;
+
+	/* register with core */
+	count = driver_register(&drv->driver);
+	return count ? count : 1;
+}
+
+void
+of_unregister_driver(struct of_platform_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+
+
+static ssize_t
+dev_show_devspec(struct device *dev, char *buf)
+{
+	struct of_device *ofdev;
+
+	ofdev = to_of_device(dev);
+	return sprintf(buf, "%s", ofdev->node->full_name);
+}
+
+static DEVICE_ATTR(devspec, S_IRUGO, dev_show_devspec, NULL);
+
+int
+of_device_register(struct of_device *ofdev)
+{
+	int rc;
+	struct of_device **odprop;
+
+	BUG_ON(ofdev->node == NULL);
+	
+	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
+	if (!odprop) {
+		struct property *new_prop;
+		
+		new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *),
+			GFP_KERNEL);
+		if (new_prop == NULL)
+			return -ENOMEM;
+		new_prop->name = "linux,device";
+		new_prop->length = sizeof(sizeof(struct of_device *));
+		new_prop->value = (unsigned char *)&new_prop[1];
+		odprop = (struct of_device **)new_prop->value;
+		*odprop = NULL;
+		prom_add_property(ofdev->node, new_prop);
+	}
+	*odprop = ofdev;
+
+	rc = device_register(&ofdev->dev);
+	if (rc)
+		return rc;
+
+	device_create_file(&ofdev->dev, &dev_attr_devspec);
+
+	return 0;
+}
+
+void
+of_device_unregister(struct of_device *ofdev)
+{
+	struct of_device **odprop;
+
+	device_remove_file(&ofdev->dev, &dev_attr_devspec);
+	device_unregister(&ofdev->dev);
+
+	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
+	if (odprop)
+		*odprop = NULL;
+}
+
+struct of_device*
+of_platform_device_create(struct device_node *np, const char *bus_id)
+{
+	struct of_device *dev;
+	u32 *reg;
+	
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+	memset(dev, 0, sizeof(*dev));
+
+	dev->node = np;
+	dev->dma_mask = 0xffffffffUL;
+	dev->dev.dma_mask = &dev->dma_mask;
+	dev->dev.parent = NULL;
+	dev->dev.bus = &of_platform_bus_type;
+
+	/* XXX Make something better here ? */
+	snprintf(dev->dev.name, DEVICE_NAME_SIZE, "Platform device %s", np->name);
+	reg = (u32 *)get_property(np, "reg", NULL);
+	strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
+
+	if (of_device_register(dev) != 0) {
+		kfree(dev);
+		return NULL;
+	}
+
+	return dev;
+}
+
+EXPORT_SYMBOL(of_match_device);
+EXPORT_SYMBOL(of_platform_bus_type);
+EXPORT_SYMBOL(of_register_driver);
+EXPORT_SYMBOL(of_unregister_driver);
+EXPORT_SYMBOL(of_device_register);
+EXPORT_SYMBOL(of_device_unregister);
+EXPORT_SYMBOL(of_platform_device_create);

drivers/macintosh/Makefile

@@ -4,6 +4,8 @@
 
 # Each configuration option enables a list of files.
 
+obj-$(CONFIG_PPC_PMAC)		+= macio_asic.o
+
 obj-$(CONFIG_PMAC_PBOOK)	+= mediabay.o
 obj-$(CONFIG_MAC_SERIAL)	+= macserial.o
 ifneq ($(CONFIG_MAC),y)

drivers/macintosh/macio_asic.c

+/*
+ * Bus & driver management routines for devices within
+ * a MacIO ASIC. Interface to new driver model mostly
+ * stolen from the PCI version.
+ * 
+ * TODO:
+ * 
+ *  - Don't probe below media bay by default, but instead provide
+ *    some hooks for media bay to dynamically add/remove it's own
+ *    sub-devices.
+ */
+ 
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <asm/machdep.h>
+#include <asm/macio.h>
+#include <asm/pmac_feature.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+
+static int
+macio_bus_match(struct device *dev, struct device_driver *drv) 
+{
+	struct macio_dev * macio_dev = to_macio_device(dev);
+	struct macio_driver * macio_drv = to_macio_driver(drv);
+	const struct of_match * matches = macio_drv->match_table;
+
+	if (!matches) 
+		return 0;
+
+	return of_match_device(matches, &macio_dev->ofdev) != NULL;
+}
+
+struct bus_type macio_bus_type = {
+       name:	"macio",
+       match:	macio_bus_match,
+};
+
+static int __init
+macio_bus_driver_init(void)
+{
+	return bus_register(&macio_bus_type);
+}
+
+postcore_initcall(macio_bus_driver_init);
+
+static int
+macio_device_probe(struct device *dev)
+{
+	int error = -ENODEV;
+	struct macio_driver *drv;
+	struct macio_dev *macio_dev;
+	const struct of_match *match;
+
+	drv = to_macio_driver(dev->driver);
+	macio_dev = to_macio_device(dev);
+
+	if (!drv->probe)
+		return error;
+
+/*	if (!try_module_get(driver->owner)) {
+		printk(KERN_ERR "Can't get a module reference for %s\n", driver->name);
+		return error;
+	}
+*/
+	match = of_match_device(drv->match_table, &macio_dev->ofdev);
+	if (match)
+		error = drv->probe(macio_dev, match);
+/*
+ 	module_put(driver->owner);
+*/	
+	return error;
+}
+
+static int
+macio_device_remove(struct device *dev)
+{
+	struct macio_dev * macio_dev = to_macio_device(dev);
+	struct macio_driver * drv = to_macio_driver(macio_dev->ofdev.dev.driver);
+
+	if (drv && drv->remove)
+		drv->remove(macio_dev);
+	return 0;
+}
+
+static int
+macio_device_suspend(struct device *dev, u32 state, u32 level)
+{
+	struct macio_dev * macio_dev = to_macio_device(dev);
+	struct macio_driver * drv = to_macio_driver(macio_dev->ofdev.dev.driver);
+	int error = 0;
+
+	if (drv && drv->suspend)
+		error = drv->suspend(macio_dev, state, level);
+	return error;
+}
+
+static int
+macio_device_resume(struct device * dev, u32 level)
+{
+	struct macio_dev * macio_dev = to_macio_device(dev);
+	struct macio_driver * drv = to_macio_driver(macio_dev->ofdev.dev.driver);
+	int error = 0;
+
+	if (drv && drv->resume)
+		error = drv->resume(macio_dev, level);
+	return error;
+}
+
+/**
+ * macio_add_one_device - Add one device from OF node to the device tree
+ * @chip: pointer to the macio_chip holding the device
+ * @np: pointer to the device node in the OF tree
+ * @in_bay: set to 1 if device is part of a media-bay
+ *
+ * When media-bay is changed to hotswap drivers, this function will
+ * be exposed to the bay driver some way...
+ */
+static struct macio_dev *
+macio_add_one_device(struct macio_chip *chip, struct device *parent,
+		     struct device_node *np, struct macio_dev *in_bay)
+{
+	struct macio_dev *dev;
+	u32 *reg;
+	
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+	memset(dev, 0, sizeof(*dev));
+
+	dev->bus = &chip->lbus;
+	dev->media_bay = in_bay;
+	dev->ofdev.node = np;
+	dev->ofdev.dma_mask = 0xffffffffUL;
+	dev->ofdev.dev.dma_mask = &dev->ofdev.dma_mask;
+	dev->ofdev.dev.parent = parent;
+	dev->ofdev.dev.bus = &macio_bus_type;
+
+	/* XXX Make something better here ? */
+	snprintf(dev->ofdev.dev.name, DEVICE_NAME_SIZE, "MacIO device %s", np->name);
+
+	/* MacIO itself has a different reg, we use it's PCI base */
+	if (np == chip->of_node) {
+		sprintf(dev->ofdev.dev.bus_id, "%1d.%08lx:%.8s", chip->lbus.index,
+#ifdef CONFIG_PCI
+			pci_resource_start(chip->lbus.pdev, 0),
+#else
+			0, /* NuBus may want to do something better here */
+#endif
+			np->name);
+	} else {
+		reg = (u32 *)get_property(np, "reg", NULL);
+		sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.8s", chip->lbus.index,
+			reg ? *reg : 0, np->name);
+	}
+
+	if (of_device_register(&dev->ofdev) != 0) {
+		kfree(dev);
+		return NULL;
+	}
+
+	return dev;
+}
+
+static int
+macio_skip_device(struct device_node *np)
+{
+	if (strncmp(np->name, "battery", 7) == 0)
+		return 1;
+	if (strncmp(np->name, "escc-legacy", 11) == 0)
+		return 1;
+	return 0;
+}
+
+/**
+ * macio_pci_add_devices - Adds sub-devices of mac-io to the device tree
+ * @chip: pointer to the macio_chip holding the devices
+ * 
+ * This function will do the job of extracting devices from the
+ * Open Firmware device tree, build macio_dev structures and add
+ * them to the Linux device tree.
+ * 
+ * For now, childs of media-bay are added now as well. This will
+ * change rsn though.
+ */
+static void
+macio_pci_add_devices(struct macio_chip *chip)
+{
+	struct device_node *np;
+	struct macio_dev *rdev, *mdev, *mbdev = NULL, *sdev = NULL;
+	struct device *parent = NULL;
+	
+	/* Add a node for the macio bus itself */
+#ifdef CONFIG_PCI
+	if (chip->lbus.pdev)
+		parent = &chip->lbus.pdev->dev;
+#endif		
+	rdev = macio_add_one_device(chip, parent, chip->of_node, NULL);
+	if (rdev == NULL)
+		return;
+
+	/* First scan 1st level */
+	for (np = chip->of_node->child; np != NULL; np = np->sibling) {
+		if (!macio_skip_device(np)) {
+			mdev = macio_add_one_device(chip, &rdev->ofdev.dev, np, NULL);
+			if (strncmp(np->name, "media-bay", 9) == 0)
+				mbdev = mdev;
+			else if (strncmp(np->name, "escc", 4) == 0)
+				sdev = mdev;
+		}
+	}
+
+	/* Add media bay devices if any */
+	if (mbdev) {
+		for (np = mbdev->ofdev.node->child; np != NULL; np = np->sibling)
+			if (!macio_skip_device(np))
+				macio_add_one_device(chip, &mbdev->ofdev.dev, np, mbdev);
+	}
+	/* Add serial ports if any */
+	if (sdev) {
+		for (np = sdev->ofdev.node->child; np != NULL; np = np->sibling)
+			if (!macio_skip_device(np))
+				macio_add_one_device(chip, &sdev->ofdev.dev, np, NULL);
+	}
+}
+
+
+/**
+ * macio_register_driver - Registers a new MacIO device driver
+ * @drv: pointer to the driver definition structure
+ */
+int
+macio_register_driver(struct macio_driver *drv)
+{
+	int count = 0;
+
+	/* initialize common driver fields */
+	drv->driver.name = drv->name;
+	drv->driver.bus = &macio_bus_type;
+	drv->driver.probe = macio_device_probe;
+	drv->driver.resume = macio_device_resume;
+	drv->driver.suspend = macio_device_suspend;
+	drv->driver.remove = macio_device_remove;
+
+	/* register with core */
+	count = driver_register(&drv->driver);
+	return count ? count : 1;
+}
+
+/**
+ * macio_unregister_driver - Unregisters a new MacIO device driver
+ * @drv: pointer to the driver definition structure
+ */
+void
+macio_unregister_driver(struct macio_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+
+#ifdef CONFIG_PCI
+
+static int __devinit
+macio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct device_node* np;
+	struct macio_chip* chip;
+	
+	if (ent->vendor != PCI_VENDOR_ID_APPLE)
+		return -ENODEV;
+
+	np = pci_device_to_OF_node(pdev);
+	if (np == NULL)
+		return -ENODEV;
+
+	chip = macio_find(np, macio_unknown);
+	if (chip == NULL)
+		return -ENODEV;
+
+	/* XXX Need locking */
+	if (chip->lbus.pdev == NULL) {
+		chip->lbus.pdev = pdev;
+		chip->lbus.chip = chip;
+//		INIT_LIST_HEAD(&chip->lbus.devices);
+		pci_set_drvdata(pdev, &chip->lbus);
+		pci_set_master(pdev);
+	}
+
+	printk(KERN_INFO "MacIO PCI driver attached to %s chipset\n",
+		chip->name);
+
+	macio_pci_add_devices(chip);
+
+	return 0;
+}
+
+static void __devexit
+macio_pci_remove(struct pci_dev* pdev)
+{
+	panic("removing of macio-asic not supported !\n");
+}
+
+/*
+ * MacIO is matched against any Apple ID, it's probe() function
+ * will then decide wether it applies or not
+ */
+static const struct pci_device_id __devinitdata pci_ids [] = { {
+	.vendor =	PCI_VENDOR_ID_APPLE,
+	.device =	PCI_ANY_ID,
+	.subvendor =	PCI_ANY_ID,
+	.subdevice =	PCI_ANY_ID,
+
+	}, { /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE (pci, pci_ids);
+
+/* pci driver glue; this is a "new style" PCI driver module */
+static struct pci_driver macio_pci_driver = {
+	.name =		(char *) "macio",
+	.id_table =	pci_ids,
+
+	.probe =	macio_pci_probe,
+	.remove =	macio_pci_remove,
+};
+
+#endif /* CONFIG_PCI */
+
+static int __init
+macio_module_init (void) 
+{
+#ifdef CONFIG_PCI
+	int rc;
+
+	rc = pci_module_init(&macio_pci_driver);
+	if (rc)
+		return rc;
+#endif /* CONFIG_PCI */
+	return 0;
+}
+
+/*
+static void __exit
+macio_module_cleanup (void) 
+{	
+#ifdef CONFIG_PCI
+	pci_unregister_driver(&macio_pci_driver);
+#endif
+}
+module_exit(macio_module_cleanup);
+*/
+module_init(macio_module_init);
+
+EXPORT_SYMBOL(macio_register_driver);
+EXPORT_SYMBOL(macio_unregister_driver);

include/asm-ppc/macio_asic.h → include/asm-ppc/macio.h

 #ifndef __MACIO_ASIC_H__
 #define __MACIO_ASIC_H__
 
-#include <linux/device.h>
+#include <asm/of_device.h>
 
 extern struct bus_type macio_bus_type;
 
@@ -17,12 +17,16 @@ struct macio_chip;
  * within a MacIO ASIC. It's typically provided by a macio_pci_asic
  * PCI device, but could be provided differently as well (nubus
  * machines using a fake OF tree).
+ * 
+ * The pdev field can be NULL on non-PCI machines
  */
 struct macio_bus
 {
 	struct macio_chip	*chip;		/* macio_chip (private use) */
+	int			index;		/* macio chip index in system */
+#ifdef CONFIG_PCI
 	struct pci_dev		*pdev;		/* PCI device hosting this bus */
-	struct list_head	devices;	/* list of devices on this bus */
+#endif	
 };
 
 /*
@@ -31,39 +35,23 @@ struct macio_bus
  */
 struct macio_dev
 {
-	struct macio_bus	*bus;		/* virtual bus this device is on */
-
-	struct device_node	*node;		/* OF node */	
-	struct macio_driver	*driver;	/* which driver allocated this device */
-	void			*driver_data;	/* placeholder for driver specific stuffs */
-	struct resource		resources[MACIO_DEV_COUNT_RESOURCE]; /* I/O */
-	int			irqs[MACIO_DEV_COUNT_IRQS];
-	
-	struct device		dev;		/* Generic device interface */
-};
-#define	to_macio_device(d) container_of(d, struct macio_dev, dev)
-
-/*
- * Struct used for matching a device
- */
-struct macio_match
-{
-	char	*name;
-	char	*type;
-	char	*compatible;
+	struct macio_bus	*bus;		/* macio bus this device is on */
+	struct macio_dev	*media_bay;	/* Device is part of a media bay */
+	struct of_device	ofdev;
 };
-#define MACIO_ANY_MATCH		((char *)-1L)
+#define	to_macio_device(d) container_of(d, struct macio_dev, ofdev.dev)
+#define	of_to_macio_device(d) container_of(d, struct macio_dev, ofdev)
 
 /*
  * A driver for a mac-io chip based device
  */
 struct macio_driver
 {
-	struct list_head	node;
 	char			*name;
-	struct macio_match	*match_table;
+	struct of_match		*match_table;
+	struct module		*owner;
 
-	int	(*probe)(struct macio_dev* dev, const struct macio_match *match);
+	int	(*probe)(struct macio_dev* dev, const struct of_match *match);
 	int	(*remove)(struct macio_dev* dev);
 
 	int	(*suspend)(struct macio_dev* dev, u32 state, u32 level);

include/asm-ppc/of_device.h

+#ifndef __OF_DEVICE_H__
+#define __OF_DEVICE_H__
+
+#include <linux/device.h>
+#include <asm/prom.h>
+
+/* 
+ * The of_platform_bus_type is a bus type used by drivers that do not
+ * attach to a macio or similar bus but still use OF probing
+ * mecanism
+ */
+extern struct bus_type of_platform_bus_type;
+
+/* 
+ * The of_device is a kind of "base class" that is a superset of
+ * struct device for use by devices attached to an OF node and
+ * probed using OF properties
+ */
+struct of_device
+{
+	struct device_node	*node;		/* OF device node */
+	u64			dma_mask;	/* DMA mask */
+	struct device		dev;		/* Generic device interface */
+};
+#define	to_of_device(d) container_of(d, struct of_device, dev)
+
+/*
+ * Struct used for matching a device
+ */
+struct of_match
+{
+	char	*name;
+	char	*type;
+	char	*compatible;
+	void	*data;
+};
+#define OF_ANY_MATCH		((char *)-1L)
+
+extern const struct of_match *of_match_device(
+	const struct of_match *matches, const struct of_device *dev);
+
+/*
+ * An of_platform_driver driver is attached to a basic of_device on
+ * the "platform bus" (of_platform_bus_type)
+ */
+struct of_platform_driver
+{
+	char			*name;
+	struct of_match		*match_table;
+	struct module		*owner;
+
+	int	(*probe)(struct of_device* dev, const struct of_match *match);
+	int	(*remove)(struct of_device* dev);
+
+	int	(*suspend)(struct of_device* dev, u32 state, u32 level);
+	int	(*resume)(struct of_device* dev, u32 level);
+	int	(*shutdown)(struct of_device* dev);
+
+	struct device_driver	driver;
+};
+#define	to_of_platform_driver(drv) container_of(drv,struct of_platform_driver, driver)
+
+extern int of_register_driver(struct of_platform_driver *drv);
+extern void of_unregister_driver(struct of_platform_driver *drv);
+extern int of_device_register(struct of_device *ofdev);
+extern void of_device_unregister(struct of_device *ofdev);
+extern struct of_device *of_platform_device_create(struct device_node *np, const char *bus_id);
+
+#endif /* __OF_DEVICE_H__ */
+

include/asm-ppc/pmac_feature.h

@@ -31,7 +31,7 @@
 #ifndef __PPC_ASM_PMAC_FEATURE_H
 #define __PPC_ASM_PMAC_FEATURE_H
 
-#include <asm/macio_asic.h>
+#include <asm/macio.h>
 
 /*
  * Known Mac motherboard models