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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 17:28:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 17:28:10 -0700
commit4c5811bf463b0ef82fabbd1708f8bb2d753aeb18 (patch)
treeff37d31217c3804ca05de21a55a9b5ca1ca818b2 /arch/powerpc/kernel
parentf74b9444192c60603020c61d7915b72893137edc (diff)
parent9f15444fefdb33509132ff5c9be60cb315c44cb2 (diff)
downloadop-kernel-dev-4c5811bf463b0ef82fabbd1708f8bb2d753aeb18.zip
op-kernel-dev-4c5811bf463b0ef82fabbd1708f8bb2d753aeb18.tar.gz
Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: (21 commits) tty: serial: altera_jtaguart: Add device tree support tty: serial: altera_uart: Add devicetree support dt: eliminate of_platform_driver shim code dt: Eliminate of_platform_{,un}register_driver dt/serial: Eliminate users of of_platform_{,un}register_driver dt/usb: Eliminate users of of_platform_{,un}register_driver dt/video: Eliminate users of of_platform_{,un}register_driver dt/net: Eliminate users of of_platform_{,un}register_driver dt/sound: Eliminate users of of_platform_{,un}register_driver dt/spi: Eliminate users of of_platform_{,un}register_driver dt: uartlite: merge platform and of_platform driver bindings dt: xilinx_hwicap: merge platform and of_platform driver bindings ipmi: convert OF driver to platform driver leds/leds-gpio: merge platform_driver with of_platform_driver dt/sparc: Eliminate users of of_platform_{,un}register_driver dt/powerpc: Eliminate users of of_platform_{,un}register_driver dt/powerpc: move of_bus_type infrastructure to ibmebus drivercore/dt: add a match table pointer to struct device dt: Typo fix. altera_ps2: Add devicetree support ...
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/ibmebus.c404
-rw-r--r--arch/powerpc/kernel/of_platform.c9
-rw-r--r--arch/powerpc/kernel/pci-common.c11
-rw-r--r--arch/powerpc/kernel/pci_32.c2
-rw-r--r--arch/powerpc/kernel/pci_64.c6
-rw-r--r--arch/powerpc/kernel/pci_dn.c9
-rw-r--r--arch/powerpc/kernel/pci_of_scan.c4
7 files changed, 419 insertions, 26 deletions
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index f62efdf..c00d4ca 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -201,13 +201,14 @@ int ibmebus_register_driver(struct of_platform_driver *drv)
/* If the driver uses devices that ibmebus doesn't know, add them */
ibmebus_create_devices(drv->driver.of_match_table);
- return of_register_driver(drv, &ibmebus_bus_type);
+ drv->driver.bus = &ibmebus_bus_type;
+ return driver_register(&drv->driver);
}
EXPORT_SYMBOL(ibmebus_register_driver);
void ibmebus_unregister_driver(struct of_platform_driver *drv)
{
- of_unregister_driver(drv);
+ driver_unregister(&drv->driver);
}
EXPORT_SYMBOL(ibmebus_unregister_driver);
@@ -308,15 +309,410 @@ static ssize_t ibmebus_store_remove(struct bus_type *bus,
}
}
+
static struct bus_attribute ibmebus_bus_attrs[] = {
__ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe),
__ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove),
__ATTR_NULL
};
+static int ibmebus_bus_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 ibmebus_bus_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 ibmebus_bus_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 ibmebus_bus_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);
+}
+
+/*
+ * ibmebus_bus_device_attrs
+ */
+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 ibmebus_bus_device_attrs[] = {
+ __ATTR_RO(devspec),
+ __ATTR_RO(name),
+ __ATTR_RO(modalias),
+ __ATTR_NULL
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int ibmebus_bus_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 ibmebus_bus_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 ibmebus_bus_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 ibmebus_bus_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 ibmebus_bus_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 = ibmebus_bus_legacy_suspend(dev, PMSG_SUSPEND);
+ }
+
+ return ret;
+}
+
+static int ibmebus_bus_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 ibmebus_bus_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 = ibmebus_bus_legacy_resume(dev);
+ }
+
+ return ret;
+}
+
+static int ibmebus_bus_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 ibmebus_bus_pm_suspend NULL
+#define ibmebus_bus_pm_resume NULL
+#define ibmebus_bus_pm_suspend_noirq NULL
+#define ibmebus_bus_pm_resume_noirq NULL
+
+#endif /* !CONFIG_SUSPEND */
+
+#ifdef CONFIG_HIBERNATION
+
+static int ibmebus_bus_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 = ibmebus_bus_legacy_suspend(dev, PMSG_FREEZE);
+ }
+
+ return ret;
+}
+
+static int ibmebus_bus_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 ibmebus_bus_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 = ibmebus_bus_legacy_resume(dev);
+ }
+
+ return ret;
+}
+
+static int ibmebus_bus_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 ibmebus_bus_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 = ibmebus_bus_legacy_suspend(dev, PMSG_HIBERNATE);
+ }
+
+ return ret;
+}
+
+static int ibmebus_bus_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 ibmebus_bus_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 = ibmebus_bus_legacy_resume(dev);
+ }
+
+ return ret;
+}
+
+static int ibmebus_bus_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 ibmebus_bus_pm_freeze NULL
+#define ibmebus_bus_pm_thaw NULL
+#define ibmebus_bus_pm_poweroff NULL
+#define ibmebus_bus_pm_restore NULL
+#define ibmebus_bus_pm_freeze_noirq NULL
+#define ibmebus_bus_pm_thaw_noirq NULL
+#define ibmebus_bus_pm_poweroff_noirq NULL
+#define ibmebus_bus_pm_restore_noirq NULL
+
+#endif /* !CONFIG_HIBERNATION */
+
+static struct dev_pm_ops ibmebus_bus_dev_pm_ops = {
+ .prepare = ibmebus_bus_pm_prepare,
+ .complete = ibmebus_bus_pm_complete,
+ .suspend = ibmebus_bus_pm_suspend,
+ .resume = ibmebus_bus_pm_resume,
+ .freeze = ibmebus_bus_pm_freeze,
+ .thaw = ibmebus_bus_pm_thaw,
+ .poweroff = ibmebus_bus_pm_poweroff,
+ .restore = ibmebus_bus_pm_restore,
+ .suspend_noirq = ibmebus_bus_pm_suspend_noirq,
+ .resume_noirq = ibmebus_bus_pm_resume_noirq,
+ .freeze_noirq = ibmebus_bus_pm_freeze_noirq,
+ .thaw_noirq = ibmebus_bus_pm_thaw_noirq,
+ .poweroff_noirq = ibmebus_bus_pm_poweroff_noirq,
+ .restore_noirq = ibmebus_bus_pm_restore_noirq,
+};
+
+#define IBMEBUS_BUS_PM_OPS_PTR (&ibmebus_bus_dev_pm_ops)
+
+#else /* !CONFIG_PM_SLEEP */
+
+#define IBMEBUS_BUS_PM_OPS_PTR NULL
+
+#endif /* !CONFIG_PM_SLEEP */
+
struct bus_type ibmebus_bus_type = {
+ .name = "ibmebus",
.uevent = of_device_uevent,
- .bus_attrs = ibmebus_bus_attrs
+ .bus_attrs = ibmebus_bus_attrs,
+ .match = ibmebus_bus_bus_match,
+ .probe = ibmebus_bus_device_probe,
+ .remove = ibmebus_bus_device_remove,
+ .shutdown = ibmebus_bus_device_shutdown,
+ .dev_attrs = ibmebus_bus_device_attrs,
+ .pm = IBMEBUS_BUS_PM_OPS_PTR,
};
EXPORT_SYMBOL(ibmebus_bus_type);
@@ -326,7 +722,7 @@ static int __init ibmebus_bus_init(void)
printk(KERN_INFO "IBM eBus Device Driver\n");
- err = of_bus_type_init(&ibmebus_bus_type, "ibmebus");
+ err = bus_register(&ibmebus_bus_type);
if (err) {
printk(KERN_ERR "%s: failed to register IBM eBus.\n",
__func__);
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index b2c363e..2458218 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -36,8 +36,7 @@
* lacking some bits needed here.
*/
-static int __devinit of_pci_phb_probe(struct platform_device *dev,
- const struct of_device_id *match)
+static int __devinit of_pci_phb_probe(struct platform_device *dev)
{
struct pci_controller *phb;
@@ -74,7 +73,7 @@ static int __devinit of_pci_phb_probe(struct platform_device *dev,
#endif /* CONFIG_EEH */
/* Scan the bus */
- pcibios_scan_phb(phb, dev->dev.of_node);
+ pcibios_scan_phb(phb);
if (phb->bus == NULL)
return -ENXIO;
@@ -104,7 +103,7 @@ static struct of_device_id of_pci_phb_ids[] = {
{}
};
-static struct of_platform_driver of_pci_phb_driver = {
+static struct platform_driver of_pci_phb_driver = {
.probe = of_pci_phb_probe,
.driver = {
.name = "of-pci",
@@ -115,7 +114,7 @@ static struct of_platform_driver of_pci_phb_driver = {
static __init int of_pci_phb_init(void)
{
- return of_register_platform_driver(&of_pci_phb_driver);
+ return platform_driver_register(&of_pci_phb_driver);
}
device_initcall(of_pci_phb_init);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index eb341be..3cd85fa 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1688,13 +1688,8 @@ int early_find_capability(struct pci_controller *hose, int bus, int devfn,
/**
* pci_scan_phb - Given a pci_controller, setup and scan the PCI bus
* @hose: Pointer to the PCI host controller instance structure
- * @sysdata: value to use for sysdata pointer. ppc32 and ppc64 differ here
- *
- * Note: the 'data' pointer is a temporary measure. As 32 and 64 bit
- * pci code gets merged, this parameter should become unnecessary because
- * both will use the same value.
*/
-void __devinit pcibios_scan_phb(struct pci_controller *hose, void *sysdata)
+void __devinit pcibios_scan_phb(struct pci_controller *hose)
{
struct pci_bus *bus;
struct device_node *node = hose->dn;
@@ -1704,13 +1699,13 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose, void *sysdata)
node ? node->full_name : "<NO NAME>");
/* Create an empty bus for the toplevel */
- bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops,
- sysdata);
+ bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose);
if (bus == NULL) {
pr_err("Failed to create bus for PCI domain %04x\n",
hose->global_number);
return;
}
+ bus->dev.of_node = of_node_get(node);
bus->secondary = hose->first_busno;
hose->bus = bus;
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index e7db5b4..bedb370 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -381,7 +381,7 @@ static int __init pcibios_init(void)
if (pci_assign_all_buses)
hose->first_busno = next_busno;
hose->last_busno = 0xff;
- pcibios_scan_phb(hose, hose);
+ pcibios_scan_phb(hose);
pci_bus_add_devices(hose->bus);
if (pci_assign_all_buses || next_busno <= hose->last_busno)
next_busno = hose->last_busno + pcibios_assign_bus_offset;
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 8515776..fc6452b 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -64,7 +64,7 @@ static int __init pcibios_init(void)
/* Scan all of the recorded PCI controllers. */
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
- pcibios_scan_phb(hose, hose->dn);
+ pcibios_scan_phb(hose);
pci_bus_add_devices(hose->bus);
}
@@ -242,10 +242,10 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
break;
bus = NULL;
}
- if (bus == NULL || bus->sysdata == NULL)
+ if (bus == NULL || bus->dev.of_node == NULL)
return -ENODEV;
- hose_node = (struct device_node *)bus->sysdata;
+ hose_node = bus->dev.of_node;
hose = PCI_DN(hose_node)->phb;
switch (which) {
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index d56b35e..2985268 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -161,7 +161,7 @@ static void *is_devfn_node(struct device_node *dn, void *data)
/*
* This is the "slow" path for looking up a device_node from a
* pci_dev. It will hunt for the device under its parent's
- * phb and then update sysdata for a future fastpath.
+ * phb and then update of_node pointer.
*
* It may also do fixups on the actual device since this happens
* on the first read/write.
@@ -170,16 +170,19 @@ static void *is_devfn_node(struct device_node *dn, void *data)
* In this case it may probe for real hardware ("just in case")
* and add a device_node to the device tree if necessary.
*
+ * Is this function necessary anymore now that dev->dev.of_node is
+ * used to store the node pointer?
+ *
*/
struct device_node *fetch_dev_dn(struct pci_dev *dev)
{
- struct device_node *orig_dn = dev->sysdata;
+ struct device_node *orig_dn = dev->dev.of_node;
struct device_node *dn;
unsigned long searchval = (dev->bus->number << 8) | dev->devfn;
dn = traverse_pci_devices(orig_dn, is_devfn_node, (void *)searchval);
if (dn)
- dev->sysdata = dn;
+ dev->dev.of_node = dn;
return dn;
}
EXPORT_SYMBOL(fetch_dev_dn);
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index e7515063..1e89a72 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -135,7 +135,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
pr_debug(" create device, devfn: %x, type: %s\n", devfn, type);
dev->bus = bus;
- dev->sysdata = node;
+ dev->dev.of_node = of_node_get(node);
dev->dev.parent = bus->bridge;
dev->dev.bus = &pci_bus_type;
dev->devfn = devfn;
@@ -238,7 +238,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node,
bus->primary = dev->bus->number;
bus->subordinate = busrange[1];
bus->bridge_ctl = 0;
- bus->sysdata = node;
+ bus->dev.of_node = of_node_get(node);
/* parse ranges property */
/* PCI #address-cells == 3 and #size-cells == 2 always */
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