Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits)
  of/platform: Register of_platform_drivers with an "of:" prefix
  of/address: Clean up function declarations
  of/spi: call of_register_spi_devices() from spi core code
  of: Provide default of_node_to_nid() implementation.
  of/device: Make of_device_make_bus_id() usable by other code.
  of/irq: Fix endian issues in parsing interrupt specifiers
  of: Fix phandle endian issues
  of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string
  of: remove of_default_bus_ids
  of: make of_find_device_by_node generic
  microblaze: remove references to of_device and to_of_device
  sparc: remove references to of_device and to_of_device
  powerpc: remove references to of_device and to_of_device
  of/device: Replace of_device with platform_device in includes and core code
  of/device: Protect against binding of_platform_drivers to non-OF devices
  of: remove asm/of_device.h
  of: remove asm/of_platform.h
  of/platform: remove all of_bus_type and of_platform_bus_type references
  of: Merge of_platform_bus_type with platform_bus_type
  drivercore/of: Add OF style matching to platform bus
  ...

Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just
some obj-y removals by the devicetree branch, while the microblaze
updates added a new file.

9 files changed, 250 insertions, 62 deletions

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 4f3d75e1ad3..c7376bf80b0 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -31,6 +31,7 @@ static inline int gpio_is_valid(int number)
 struct device;
 struct seq_file;
 struct module;
+struct device_node;
 
 /**
  * struct gpio_chip - abstract a GPIO controller
@@ -106,6 +107,17 @@ struct gpio_chip {
         const char              *const *names;
         unsigned                can_sleep:1;
         unsigned                exported:1;
+
+#if defined(CONFIG_OF_GPIO)
+        /*
+         * If CONFIG_OF is enabled, then all GPIO controllers described in the
+         * device tree automatically may have an OF translation
+         */
+        struct device_node *of_node;
+        int of_gpio_n_cells;
+        int (*of_xlate)(struct gpio_chip *gc, struct device_node *np,
+                        const void *gpio_spec, u32 *flags);
+#endif
 };
 
 extern const char *gpiochip_is_requested(struct gpio_chip *chip,
@@ -115,6 +127,9 @@ extern int __must_check gpiochip_reserve(int start, int ngpio);
 /* add/remove chips */
 extern int gpiochip_add(struct gpio_chip *chip);
 extern int __must_check gpiochip_remove(struct gpio_chip *chip);
+extern struct gpio_chip *gpiochip_find(void *data,
+                                        int (*match)(struct gpio_chip *chip,
+                                                     void *data));
 
 
 /* Always use the library code for GPIO management calls,
diff --git a/include/linux/of.h b/include/linux/of.h
index a367e19bb3a..cad7cf0ab27 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -70,6 +70,11 @@ extern struct device_node *allnodes;
 extern struct device_node *of_chosen;
 extern rwlock_t devtree_lock;
 
+static inline bool of_node_is_root(const struct device_node *node)
+{
+        return node && (node->parent == NULL);
+}
+
 static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
 {
         return test_bit(flag, &n->_flags);
@@ -141,6 +146,11 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 
 #define OF_BAD_ADDR     ((u64)-1)
 
+#ifndef of_node_to_nid
+static inline int of_node_to_nid(struct device_node *np) { return -1; }
+#define of_node_to_nid of_node_to_nid
+#endif
+
 extern struct device_node *of_find_node_by_name(struct device_node *from,
         const char *name);
 #define for_each_node_by_name(dn, name) \
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
new file mode 100644
index 00000000000..8aea06f0564
--- /dev/null
+++ b/include/linux/of_address.h
@@ -0,0 +1,44 @@
+#ifndef __OF_ADDRESS_H
+#define __OF_ADDRESS_H
+#include <linux/ioport.h>
+#include <linux/of.h>
+
+extern u64 of_translate_address(struct device_node *np, const u32 *addr);
+extern int of_address_to_resource(struct device_node *dev, int index,
+                                  struct resource *r);
+extern void __iomem *of_iomap(struct device_node *device, int index);
+
+/* Extract an address from a device, returns the region size and
+ * the address space flags too. The PCI version uses a BAR number
+ * instead of an absolute index
+ */
+extern const u32 *of_get_address(struct device_node *dev, int index,
+                           u64 *size, unsigned int *flags);
+
+#ifndef pci_address_to_pio
+static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
+#define pci_address_to_pio pci_address_to_pio
+#endif
+
+#ifdef CONFIG_PCI
+extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+                               u64 *size, unsigned int *flags);
+extern int of_pci_address_to_resource(struct device_node *dev, int bar,
+                                      struct resource *r);
+#else /* CONFIG_PCI */
+static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
+                                             struct resource *r)
+{
+        return -ENOSYS;
+}
+
+static inline const u32 *of_get_pci_address(struct device_node *dev,
+                int bar_no, u64 *size, unsigned int *flags)
+{
+        return NULL;
+}
+#endif /* CONFIG_PCI */
+
+
+#endif /* __OF_ADDRESS_H */
+
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 11651facc5f..35aa44ad9f2 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -1,32 +1,77 @@
 #ifndef _LINUX_OF_DEVICE_H
 #define _LINUX_OF_DEVICE_H
 
+/*
+ * The of_device *was* a kind of "base class" that was a superset of
+ * struct device for use by devices attached to an OF node and probed
+ * using OF properties.  However, the important bit of OF-style
+ * probing, namely the device node pointer, has been moved into the
+ * common struct device when CONFIG_OF is set to make OF-style probing
+ * available to all bus types.  So now, just make of_device and
+ * platform_device equivalent so that current of_platform bus users
+ * can be transparently migrated over to using the platform bus.
+ *
+ * This line will go away once all references to of_device are removed
+ * from the kernel.
+ */
+#define of_device platform_device
+#include <linux/platform_device.h>
+#include <linux/of_platform.h> /* temporary until merge */
+
 #ifdef CONFIG_OF_DEVICE
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/mod_devicetable.h>
 
-#include <asm/of_device.h>
-
 #define to_of_device(d) container_of(d, struct of_device, dev)
 
 extern const struct of_device_id *of_match_device(
         const struct of_device_id *matches, const struct device *dev);
+extern void of_device_make_bus_id(struct device *dev);
+
+/**
+ * of_driver_match_device - Tell if a driver's of_match_table matches a device.
+ * @drv: the device_driver structure to test
+ * @dev: the device structure to match against
+ */
+static inline int of_driver_match_device(const struct device *dev,
+                                         const struct device_driver *drv)
+{
+        return of_match_device(drv->of_match_table, dev) != NULL;
+}
 
-extern struct of_device *of_dev_get(struct of_device *dev);
-extern void of_dev_put(struct of_device *dev);
+extern struct platform_device *of_dev_get(struct platform_device *dev);
+extern void of_dev_put(struct platform_device *dev);
 
-extern int of_device_register(struct of_device *ofdev);
-extern void of_device_unregister(struct of_device *ofdev);
+extern int of_device_register(struct platform_device *ofdev);
+extern void of_device_unregister(struct platform_device *ofdev);
 extern void of_release_dev(struct device *dev);
 
-static inline void of_device_free(struct of_device *dev)
+static inline void of_device_free(struct platform_device *dev)
 {
         of_release_dev(&dev->dev);
 }
 
-extern ssize_t of_device_get_modalias(struct of_device *ofdev,
+extern ssize_t of_device_get_modalias(struct device *dev,
                                         char *str, ssize_t len);
+
+extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
+
+
+#else /* CONFIG_OF_DEVICE */
+
+static inline int of_driver_match_device(struct device *dev,
+                                         struct device_driver *drv)
+{
+        return 0;
+}
+
+static inline int of_device_uevent(struct device *dev,
+                                   struct kobj_uevent_env *env)
+{
+        return -ENODEV;
+}
+
 #endif /* CONFIG_OF_DEVICE */
 
 #endif /* _LINUX_OF_DEVICE_H */
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index fc2472c3c25..6598c04dab0 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -33,34 +33,17 @@ enum of_gpio_flags {
 #ifdef CONFIG_OF_GPIO
 
 /*
- * Generic OF GPIO chip
- */
-struct of_gpio_chip {
-        struct gpio_chip gc;
-        int gpio_cells;
-        int (*xlate)(struct of_gpio_chip *of_gc, struct device_node *np,
-                     const void *gpio_spec, enum of_gpio_flags *flags);
-};
-
-static inline struct of_gpio_chip *to_of_gpio_chip(struct gpio_chip *gc)
-{
-        return container_of(gc, struct of_gpio_chip, gc);
-}
-
-/*
  * OF GPIO chip for memory mapped banks
  */
 struct of_mm_gpio_chip {
-        struct of_gpio_chip of_gc;
+        struct gpio_chip gc;
         void (*save_regs)(struct of_mm_gpio_chip *mm_gc);
         void __iomem *regs;
 };
 
 static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
 {
-        struct of_gpio_chip *of_gc = to_of_gpio_chip(gc);
-
-        return container_of(of_gc, struct of_mm_gpio_chip, of_gc);
+        return container_of(gc, struct of_mm_gpio_chip, gc);
 }
 
 extern int of_get_gpio_flags(struct device_node *np, int index,
@@ -69,11 +52,12 @@ extern unsigned int of_gpio_count(struct device_node *np);
 
 extern int of_mm_gpiochip_add(struct device_node *np,
                               struct of_mm_gpio_chip *mm_gc);
-extern int of_gpio_simple_xlate(struct of_gpio_chip *of_gc,
-                                struct device_node *np,
-                                const void *gpio_spec,
-                                enum of_gpio_flags *flags);
-#else
+
+extern void of_gpiochip_add(struct gpio_chip *gc);
+extern void of_gpiochip_remove(struct gpio_chip *gc);
+extern struct gpio_chip *of_node_to_gpiochip(struct device_node *np);
+
+#else /* CONFIG_OF_GPIO */
 
 /* Drivers may not strictly depend on the GPIO support, so let them link. */
 static inline int of_get_gpio_flags(struct device_node *np, int index,
@@ -87,6 +71,9 @@ static inline unsigned int of_gpio_count(struct device_node *np)
         return 0;
 }
 
+static inline void of_gpiochip_add(struct gpio_chip *gc) { }
+static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
+
 #endif /* CONFIG_OF_GPIO */
 
 /**
diff --git a/include/linux/of_i2c.h b/include/linux/of_i2c.h
index 34974b5a76f..0efe8d465f5 100644
--- a/include/linux/of_i2c.h
+++ b/include/linux/of_i2c.h
@@ -12,12 +12,19 @@
 #ifndef __LINUX_OF_I2C_H
 #define __LINUX_OF_I2C_H
 
+#if defined(CONFIG_OF_I2C) || defined(CONFIG_OF_I2C_MODULE)
 #include <linux/i2c.h>
 
-void of_register_i2c_devices(struct i2c_adapter *adap,
-                             struct device_node *adap_node);
+extern void of_i2c_register_devices(struct i2c_adapter *adap);
 
 /* must call put_device() when done with returned i2c_client device */
-struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
+extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
+
+#else
+static inline void of_i2c_register_devices(struct i2c_adapter *adap)
+{
+        return;
+}
+#endif /* CONFIG_OF_I2C */
 
 #endif /* __LINUX_OF_I2C_H */
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
new file mode 100644
index 00000000000..5929781c104
--- /dev/null
+++ b/include/linux/of_irq.h
@@ -0,0 +1,70 @@
+#ifndef __OF_IRQ_H
+#define __OF_IRQ_H
+
+#if defined(CONFIG_OF)
+struct of_irq;
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/of.h>
+
+/*
+ * irq_of_parse_and_map() is used ba all OF enabled platforms; but SPARC
+ * implements it differently.  However, the prototype is the same for all,
+ * so declare it here regardless of the CONFIG_OF_IRQ setting.
+ */
+extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
+
+#if defined(CONFIG_OF_IRQ)
+/**
+ * of_irq - container for device_node/irq_specifier pair for an irq controller
+ * @controller: pointer to interrupt controller device tree node
+ * @size: size of interrupt specifier
+ * @specifier: array of cells @size long specifing the specific interrupt
+ *
+ * This structure is returned when an interrupt is mapped. The controller
+ * field needs to be put() after use
+ */
+#define OF_MAX_IRQ_SPEC         4 /* We handle specifiers of at most 4 cells */
+struct of_irq {
+        struct device_node *controller; /* Interrupt controller node */
+        u32 size; /* Specifier size */
+        u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
+};
+
+/*
+ * Workarounds only applied to 32bit powermac machines
+ */
+#define OF_IMAP_OLDWORLD_MAC    0x00000001
+#define OF_IMAP_NO_PHANDLE      0x00000002
+
+#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,
+                               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,
+                                      struct of_irq *out_irq)
+{
+        return -EINVAL;
+}
+#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
+
+
+extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+                          u32 ointsize, const u32 *addr,
+                          struct of_irq *out_irq);
+extern int of_irq_map_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,
+                                          unsigned int intsize);
+extern int of_irq_to_resource(struct device_node *dev, int index,
+                              struct resource *r);
+
+#endif /* CONFIG_OF_IRQ */
+#endif /* CONFIG_OF */
+#endif /* __OF_IRQ_H */
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 1643d3761eb..4e6d989c06d 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -17,29 +17,24 @@
 #include <linux/mod_devicetable.h>
 #include <linux/pm.h>
 #include <linux/of_device.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
- * mechanism
- */
-extern struct bus_type of_platform_bus_type;
+#include <linux/platform_device.h>
 
 /*
  * An of_platform_driver driver is attached to a basic of_device on
- * the "platform bus" (of_platform_bus_type).
+ * the "platform bus" (platform_bus_type).
  */
 struct of_platform_driver
 {
-        int     (*probe)(struct of_device* dev,
+        int     (*probe)(struct platform_device* dev,
                          const struct of_device_id *match);
-        int     (*remove)(struct of_device* dev);
+        int     (*remove)(struct platform_device* dev);
 
-        int     (*suspend)(struct of_device* dev, pm_message_t state);
-        int     (*resume)(struct of_device* dev);
-        int     (*shutdown)(struct of_device* dev);
+        int     (*suspend)(struct platform_device* dev, pm_message_t state);
+        int     (*resume)(struct platform_device* dev);
+        int     (*shutdown)(struct platform_device* dev);
 
         struct device_driver    driver;
+        struct platform_driver  platform_driver;
 };
 #define to_of_platform_driver(drv) \
         container_of(drv,struct of_platform_driver, driver)
@@ -49,20 +44,30 @@ extern int of_register_driver(struct of_platform_driver *drv,
 extern void of_unregister_driver(struct of_platform_driver *drv);
 
 /* Platform drivers register/unregister */
-static inline int of_register_platform_driver(struct of_platform_driver *drv)
-{
-        return of_register_driver(drv, &of_platform_bus_type);
-}
-static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
-{
-        of_unregister_driver(drv);
-}
+extern int of_register_platform_driver(struct of_platform_driver *drv);
+extern void of_unregister_platform_driver(struct of_platform_driver *drv);
 
-#include <asm/of_platform.h>
-
-extern struct of_device *of_find_device_by_node(struct device_node *np);
+extern struct platform_device *of_device_alloc(struct device_node *np,
+                                         const char *bus_id,
+                                         struct device *parent);
+extern struct platform_device *of_find_device_by_node(struct device_node *np);
 
 extern int of_bus_type_init(struct bus_type *bus, const char *name);
+
+#if !defined(CONFIG_SPARC) /* SPARC has its own device registration method */
+/* Platform devices and busses creation */
+extern struct platform_device *of_platform_device_create(struct device_node *np,
+                                                   const char *bus_id,
+                                                   struct device *parent);
+
+/* pseudo "matches" value to not do deep probe */
+#define OF_NO_DEEP_PROBE ((struct of_device_id *)-1)
+
+extern int of_platform_bus_probe(struct device_node *root,
+                                 const struct of_device_id *matches,
+                                 struct device *parent);
+#endif /* !CONFIG_SPARC */
+
 #endif /* CONFIG_OF_DEVICE */
 
 #endif  /* _LINUX_OF_PLATFORM_H */
diff --git a/include/linux/of_spi.h b/include/linux/of_spi.h
index 5f71ee8c086..9e3e70f78ae 100644
--- a/include/linux/of_spi.h
+++ b/include/linux/of_spi.h
@@ -9,10 +9,15 @@
 #ifndef __LINUX_OF_SPI_H
 #define __LINUX_OF_SPI_H
 
-#include <linux/of.h>
 #include <linux/spi/spi.h>
 
-extern void of_register_spi_devices(struct spi_master *master,
-                                    struct device_node *np);
+#if defined(CONFIG_OF_SPI) || defined(CONFIG_OF_SPI_MODULE)
+extern void of_register_spi_devices(struct spi_master *master);
+#else
+static inline void of_register_spi_devices(struct spi_master *master)
+{
+        return;
+}
+#endif /* CONFIG_OF_SPI */
 
 #endif /* __LINUX_OF_SPI */