[POWERPC] Move of_device allocation into of_device.[ch]
Extract generic of_device allocation code from of_platform_device_create()
and move it into of_device.[ch], called of_device_alloc(). Also, there's now
of_device_free() which puts the device node.
This way, bus drivers that build on of_platform (like ibmebus will) can
build upon this code instead of reinventing the wheel.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index eca8ccc..aeaa202 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -23,7 +23,6 @@
#include <linux/of_platform.h>
#include <asm/errno.h>
-#include <asm/dcr.h>
#include <asm/topology.h>
#include <asm/pci-bridge.h>
#include <asm/ppc-pci.h>
@@ -53,8 +52,6 @@
{},
};
-static atomic_t bus_no_reg_magic;
-
struct bus_type of_platform_bus_type = {
.uevent = of_device_uevent,
};
@@ -87,89 +84,26 @@
}
EXPORT_SYMBOL(of_unregister_platform_driver);
-static void of_platform_make_bus_id(struct of_device *dev)
-{
- struct device_node *node = dev->node;
- char *name = dev->dev.bus_id;
- const u32 *reg;
- u64 addr;
- int magic;
-
- /*
- * If it's a DCR based device, use 'd' for native DCRs
- * and 'D' for MMIO DCRs.
- */
-#ifdef CONFIG_PPC_DCR
- reg = of_get_property(node, "dcr-reg", NULL);
- if (reg) {
-#ifdef CONFIG_PPC_DCR_NATIVE
- snprintf(name, BUS_ID_SIZE, "d%x.%s",
- *reg, node->name);
-#else /* CONFIG_PPC_DCR_NATIVE */
- addr = of_translate_dcr_address(node, *reg, NULL);
- if (addr != OF_BAD_ADDR) {
- snprintf(name, BUS_ID_SIZE,
- "D%llx.%s", (unsigned long long)addr,
- node->name);
- return;
- }
-#endif /* !CONFIG_PPC_DCR_NATIVE */
- }
-#endif /* CONFIG_PPC_DCR */
-
- /*
- * For MMIO, get the physical address
- */
- reg = of_get_property(node, "reg", NULL);
- if (reg) {
- addr = of_translate_address(node, reg);
- if (addr != OF_BAD_ADDR) {
- snprintf(name, BUS_ID_SIZE,
- "%llx.%s", (unsigned long long)addr,
- node->name);
- return;
- }
- }
-
- /*
- * No BusID, use the node name and add a globally incremented
- * counter (and pray...)
- */
- magic = atomic_add_return(1, &bus_no_reg_magic);
- snprintf(name, BUS_ID_SIZE, "%s.%d", node->name, magic - 1);
-}
-
struct of_device* of_platform_device_create(struct device_node *np,
const char *bus_id,
struct device *parent)
{
struct of_device *dev;
- dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ dev = of_device_alloc(np, bus_id, parent);
if (!dev)
return NULL;
- dev->node = of_node_get(np);
dev->dma_mask = 0xffffffffUL;
- dev->dev.dma_mask = &dev->dma_mask;
- dev->dev.parent = parent;
dev->dev.bus = &of_platform_bus_type;
- dev->dev.release = of_release_dev;
- dev->dev.archdata.of_node = np;
- dev->dev.archdata.numa_node = of_node_to_nid(np);
/* We do not fill the DMA ops for platform devices by default.
* This is currently the responsibility of the platform code
* to do such, possibly using a device notifier
*/
- if (bus_id)
- strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
- else
- of_platform_make_bus_id(dev);
-
if (of_device_register(dev) != 0) {
- kfree(dev);
+ of_device_free(dev);
return NULL;
}