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devicetree: Add empty of_platform_populate() for !CONFIG_OF_ADDRESS (sparc) 

Sparc has its own helpers for translating address ranges when the device
tree is parsed at boot time, and it isn't able to use of_platform_populate().
However, there are some device drivers that want to use that function on
other DT enabled platforms (ie. TWL4030).  This patch adds an empty
of_platform_populate() implementation that returns an error when
CONFIG_OF_ADDRESS is not selected.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Grant Likely 2012-02-24 14:58:34 -07:00
parent d593f25ff2
commit 964dba2834
3 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/mfd/twl-core.c
View File

@ -1305,11 +1305,10 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
}
#ifdef CONFIG_OF_DEVICE
status = -ENODEV;
if (node)
status = of_platform_populate(node, NULL, NULL, &client->dev);
else
#endif
if (status)
status = add_children(pdata, id->driver_data);
fail:

4
drivers/of/platform.c
View File

@ -55,7 +55,7 @@ EXPORT_SYMBOL(of_find_device_by_node);
#include <asm/dcr.h>
#endif
#if !defined(CONFIG_SPARC)
#ifdef CONFIG_OF_ADDRESS
/*
* The following routines scan a subtree and registers a device for
* each applicable node.
@ -462,4 +462,4 @@ int of_platform_populate(struct device_node *root,
of_node_put(root);
return rc;
}
#endif /* !CONFIG_SPARC */
#endif /* CONFIG_OF_ADDRESS */

12
include/linux/of_platform.h
View File

@ -81,7 +81,7 @@ extern struct platform_device *of_device_alloc(struct device_node *np,
struct device *parent);
extern struct platform_device *of_find_device_by_node(struct device_node *np);
#if !defined(CONFIG_SPARC) /* SPARC has its own device registration method */
#ifdef CONFIG_OF_ADDRESS /* device reg helpers depend on OF_ADDRESS */
/* Platform devices and busses creation */
extern struct platform_device *of_platform_device_create(struct device_node *np,
const char *bus_id,
@ -94,7 +94,15 @@ extern int of_platform_populate(struct device_node *root,
const struct of_device_id *matches,
const struct of_dev_auxdata *lookup,
struct device *parent);
#endif /* !CONFIG_SPARC */
#else
static inline int of_platform_populate(struct device_node *root,
const struct of_device_id *matches,
const struct of_dev_auxdata *lookup,
struct device *parent)
{
return -ENODEV;
}
#endif /* !CONFIG_OF_ADDRESS */
#endif /* CONFIG_OF_DEVICE */