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of: kill struct of_device 

Now that the device tree node pointer has been moved out of struct
of_device and into the common struct device, there isn't anything
unique about of_device anymore.  In fact, there isn't much need
for a separate of_bus when all busses have access to OF style
probing.

arch/powerpc and arch/microblaze are moving away from using the of_bus
and using the regular platform bus instead for mmio devices.  This
patch makes of_device the same as platform_device as a stepping stone
in migrating of_platform_drivers over to the platform bus.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
This commit is contained in:
Grant Likely 2010-06-18 11:09:59 -06:00
parent 1636f8ac2b
commit b505ff5e72
7 changed files with 23 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/microblaze/include/asm/of_device.h
View File

@ -15,16 +15,6 @@
#include <linux/device.h>
#include <linux/of.h>
/*
* 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 dev; /* Generic device interface */
struct pdev_archdata archdata;
};
extern ssize_t of_device_get_modalias(struct of_device *ofdev,
char *str, ssize_t len);

11
arch/powerpc/include/asm/of_device.h
View File

@ -5,17 +5,6 @@
#include <linux/device.h>
#include <linux/of.h>
/*
* 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 dev; /* Generic device interface */
struct pdev_archdata archdata;
};
extern struct of_device *of_device_alloc(struct device_node *np,
const char *bus_id,
struct device *parent);

4
arch/powerpc/include/asm/smu.h
View File

@ -457,8 +457,8 @@ extern void smu_poll(void);
*/
extern int smu_init(void);
extern int smu_present(void);
struct of_device;
extern struct of_device *smu_get_ofdev(void);
struct platform_device;
extern struct platform_device *smu_get_ofdev(void);
/*

4
arch/sparc/include/asm/device.h
View File

@ -9,13 +9,13 @@
#include <asm/openprom.h>
struct device_node;
struct of_device;
struct platform_device;
struct dev_archdata {
void *iommu;
void *stc;
void *host_controller;
struct of_device *op;
struct platform_device *op;
int numa_node;
};

14
arch/sparc/include/asm/of_device.h
View File

@ -7,20 +7,6 @@
#include <linux/mod_devicetable.h>
#include <asm/openprom.h>
/*
* 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 dev;
u32 num_resources;
struct resource *resource;
struct pdev_archdata archdata;
};
extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);

4
drivers/net/niu.h
View File

@ -3236,7 +3236,7 @@ struct niu_phy_ops {
int (*link_status)(struct niu *np, int *);
};
struct of_device;
struct platform_device;
struct niu {
void __iomem *regs;
struct net_device *dev;
@ -3297,7 +3297,7 @@ struct niu {
struct niu_vpd vpd;
u32 eeprom_len;
struct of_device *op;
struct platform_device *op;
void __iomem *vir_regs_1;
void __iomem *vir_regs_2;
};

17
include/linux/of_device.h
View File

@ -3,9 +3,26 @@
#ifdef CONFIG_OF_DEVICE
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/mod_devicetable.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 <asm/of_device.h>
#define to_of_device(d) container_of(d, struct of_device, dev)