dt/powerpc: move of_bus_type infrastructure to ibmebus

arch/powerpc/kernel/ibmebus.c is the only remaining user of the
of_bus_type support code for initializing the bus and registering
drivers.  All others have either been switched to the vanilla platform
bus or already have their own infrastructure.

This patch moves the functionality that ibmebus is using out of
drivers/of/{platform,device}.c and into ibmebus.c where it is actually
used.  Also renames the moved symbols from of_platform_* to
ibmebus_bus_* to reflect the actual usage.

This patch is part of moving all of the of_platform_bus_type users
over to the platform_bus_type.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

2 files changed, 0 insertions, 427 deletions

diff --git a/drivers/of/device.c b/drivers/of/device.c
index 45d86530799f..62b4b32ac887 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -47,40 +47,6 @@ void of_dev_put(struct platform_device *dev)
 }
 EXPORT_SYMBOL(of_dev_put);
 
-static ssize_t devspec_show(struct device *dev,
-                                struct device_attribute *attr, char *buf)
-{
-        struct platform_device *ofdev;
-
-        ofdev = to_platform_device(dev);
-        return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
-}
-
-static ssize_t name_show(struct device *dev,
-                                struct device_attribute *attr, char *buf)
-{
-        struct platform_device *ofdev;
-
-        ofdev = to_platform_device(dev);
-        return sprintf(buf, "%s\n", ofdev->dev.of_node->name);
-}
-
-static ssize_t modalias_show(struct device *dev,
-                                struct device_attribute *attr, char *buf)
-{
-        ssize_t len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
-        buf[len] = '\n';
-        buf[len+1] = 0;
-        return len+1;
-}
-
-struct device_attribute of_platform_device_attrs[] = {
-        __ATTR_RO(devspec),
-        __ATTR_RO(name),
-        __ATTR_RO(modalias),
-        __ATTR_NULL
-};
-
 int of_device_add(struct platform_device *ofdev)
 {
         BUG_ON(ofdev->dev.of_node == NULL);
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index c01cd1ac7617..b71d0cdc4209 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -114,399 +114,6 @@ EXPORT_SYMBOL(of_unregister_platform_driver);
 #include <asm/dcr.h>
 #endif
 
-extern struct device_attribute of_platform_device_attrs[];
-
-static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
-{
-        const struct of_device_id *matches = drv->of_match_table;
-
-        if (!matches)
-                return 0;
-
-        return of_match_device(matches, dev) != NULL;
-}
-
-static int of_platform_device_probe(struct device *dev)
-{
-        int error = -ENODEV;
-        struct of_platform_driver *drv;
-        struct platform_device *of_dev;
-        const struct of_device_id *match;
-
-        drv = to_of_platform_driver(dev->driver);
-        of_dev = to_platform_device(dev);
-
-        if (!drv->probe)
-                return error;
-
-        of_dev_get(of_dev);
-
-        match = of_match_device(drv->driver.of_match_table, dev);
-        if (match)
-                error = drv->probe(of_dev, match);
-        if (error)
-                of_dev_put(of_dev);
-
-        return error;
-}
-
-static int of_platform_device_remove(struct device *dev)
-{
-        struct platform_device *of_dev = to_platform_device(dev);
-        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
-
-        if (dev->driver && drv->remove)
-                drv->remove(of_dev);
-        return 0;
-}
-
-static void of_platform_device_shutdown(struct device *dev)
-{
-        struct platform_device *of_dev = to_platform_device(dev);
-        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
-
-        if (dev->driver && drv->shutdown)
-                drv->shutdown(of_dev);
-}
-
-#ifdef CONFIG_PM_SLEEP
-
-static int of_platform_legacy_suspend(struct device *dev, pm_message_t mesg)
-{
-        struct platform_device *of_dev = to_platform_device(dev);
-        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
-        int ret = 0;
-
-        if (dev->driver && drv->suspend)
-                ret = drv->suspend(of_dev, mesg);
-        return ret;
-}
-
-static int of_platform_legacy_resume(struct device *dev)
-{
-        struct platform_device *of_dev = to_platform_device(dev);
-        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
-        int ret = 0;
-
-        if (dev->driver && drv->resume)
-                ret = drv->resume(of_dev);
-        return ret;
-}
-
-static int of_platform_pm_prepare(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (drv && drv->pm && drv->pm->prepare)
-                ret = drv->pm->prepare(dev);
-
-        return ret;
-}
-
-static void of_platform_pm_complete(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-
-        if (drv && drv->pm && drv->pm->complete)
-                drv->pm->complete(dev);
-}
-
-#ifdef CONFIG_SUSPEND
-
-static int of_platform_pm_suspend(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->suspend)
-                        ret = drv->pm->suspend(dev);
-        } else {
-                ret = of_platform_legacy_suspend(dev, PMSG_SUSPEND);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_suspend_noirq(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->suspend_noirq)
-                        ret = drv->pm->suspend_noirq(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_resume(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->resume)
-                        ret = drv->pm->resume(dev);
-        } else {
-                ret = of_platform_legacy_resume(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_resume_noirq(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->resume_noirq)
-                        ret = drv->pm->resume_noirq(dev);
-        }
-
-        return ret;
-}
-
-#else /* !CONFIG_SUSPEND */
-
-#define of_platform_pm_suspend          NULL
-#define of_platform_pm_resume           NULL
-#define of_platform_pm_suspend_noirq    NULL
-#define of_platform_pm_resume_noirq     NULL
-
-#endif /* !CONFIG_SUSPEND */
-
-#ifdef CONFIG_HIBERNATION
-
-static int of_platform_pm_freeze(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->freeze)
-                        ret = drv->pm->freeze(dev);
-        } else {
-                ret = of_platform_legacy_suspend(dev, PMSG_FREEZE);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_freeze_noirq(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->freeze_noirq)
-                        ret = drv->pm->freeze_noirq(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_thaw(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->thaw)
-                        ret = drv->pm->thaw(dev);
-        } else {
-                ret = of_platform_legacy_resume(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_thaw_noirq(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->thaw_noirq)
-                        ret = drv->pm->thaw_noirq(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_poweroff(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->poweroff)
-                        ret = drv->pm->poweroff(dev);
-        } else {
-                ret = of_platform_legacy_suspend(dev, PMSG_HIBERNATE);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_poweroff_noirq(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->poweroff_noirq)
-                        ret = drv->pm->poweroff_noirq(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_restore(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->restore)
-                        ret = drv->pm->restore(dev);
-        } else {
-                ret = of_platform_legacy_resume(dev);
-        }
-
-        return ret;
-}
-
-static int of_platform_pm_restore_noirq(struct device *dev)
-{
-        struct device_driver *drv = dev->driver;
-        int ret = 0;
-
-        if (!drv)
-                return 0;
-
-        if (drv->pm) {
-                if (drv->pm->restore_noirq)
-                        ret = drv->pm->restore_noirq(dev);
-        }
-
-        return ret;
-}
-
-#else /* !CONFIG_HIBERNATION */
-
-#define of_platform_pm_freeze           NULL
-#define of_platform_pm_thaw             NULL
-#define of_platform_pm_poweroff         NULL
-#define of_platform_pm_restore          NULL
-#define of_platform_pm_freeze_noirq     NULL
-#define of_platform_pm_thaw_noirq               NULL
-#define of_platform_pm_poweroff_noirq   NULL
-#define of_platform_pm_restore_noirq    NULL
-
-#endif /* !CONFIG_HIBERNATION */
-
-static struct dev_pm_ops of_platform_dev_pm_ops = {
-        .prepare = of_platform_pm_prepare,
-        .complete = of_platform_pm_complete,
-        .suspend = of_platform_pm_suspend,
-        .resume = of_platform_pm_resume,
-        .freeze = of_platform_pm_freeze,
-        .thaw = of_platform_pm_thaw,
-        .poweroff = of_platform_pm_poweroff,
-        .restore = of_platform_pm_restore,
-        .suspend_noirq = of_platform_pm_suspend_noirq,
-        .resume_noirq = of_platform_pm_resume_noirq,
-        .freeze_noirq = of_platform_pm_freeze_noirq,
-        .thaw_noirq = of_platform_pm_thaw_noirq,
-        .poweroff_noirq = of_platform_pm_poweroff_noirq,
-        .restore_noirq = of_platform_pm_restore_noirq,
-};
-
-#define OF_PLATFORM_PM_OPS_PTR  (&of_platform_dev_pm_ops)
-
-#else /* !CONFIG_PM_SLEEP */
-
-#define OF_PLATFORM_PM_OPS_PTR  NULL
-
-#endif /* !CONFIG_PM_SLEEP */
-
-int of_bus_type_init(struct bus_type *bus, const char *name)
-{
-        bus->name = name;
-        bus->match = of_platform_bus_match;
-        bus->probe = of_platform_device_probe;
-        bus->remove = of_platform_device_remove;
-        bus->shutdown = of_platform_device_shutdown;
-        bus->dev_attrs = of_platform_device_attrs;
-        bus->pm = OF_PLATFORM_PM_OPS_PTR;
-        return bus_register(bus);
-}
-
-int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
-{
-        /*
-         * Temporary: of_platform_bus used to be distinct from the platform
-         * bus.  It isn't anymore, and so drivers on the platform bus need
-         * to be registered in a special way.
-         *
-         * After all of_platform_bus_type drivers are converted to
-         * platform_drivers, this exception can be removed.
-         */
-        if (bus == &platform_bus_type)
-                return of_register_platform_driver(drv);
-
-        /* register with core */
-        drv->driver.bus = bus;
-        return driver_register(&drv->driver);
-}
-EXPORT_SYMBOL(of_register_driver);
-
-void of_unregister_driver(struct of_platform_driver *drv)
-{
-        if (drv->driver.bus == &platform_bus_type)
-                of_unregister_platform_driver(drv);
-        else
-                driver_unregister(&drv->driver);
-}
-EXPORT_SYMBOL(of_unregister_driver);
-
 #if !defined(CONFIG_SPARC)
 /*
  * The following routines scan a subtree and registers a device for