diff options
| author | Jonas Bonn <jonas@southpole.se> | 2010-07-23 19:19:35 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-07-24 09:58:22 -0600 |
| commit | c608558407aa64d2b98d58bfc116e95c0afb357e (patch) | |
| tree | 1dba985555b1fff5ce587c6368f47383ba00ebd4 /drivers/of/platform.c | |
| parent | de48e369e8ea3a773cb2f959b76fcfad9966f4a0 (diff) | |
of: make of_find_device_by_node generic
There's no need for this function to be architecture specific and all four
architectures defining it had the same definition. The function has been
moved to drivers/of/platform.c.
Signed-off-by: Jonas Bonn <jonas@southpole.se>
[grant.likely@secretlab.ca: moved to drivers/of/platform.c, simplified code, and added kerneldoc comment]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of/platform.c')
| -rw-r--r-- | drivers/of/platform.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 9f3840cdcde5..f79f40b516c6 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -22,6 +22,26 @@ #include <linux/of_platform.h> #include <linux/platform_device.h> +static int of_dev_node_match(struct device *dev, void *data) +{ + return dev->of_node == data; +} + +/** + * of_find_device_by_node - Find the platform_device associated with a node + * @np: Pointer to device tree node + * + * Returns platform_device pointer, or NULL if not found + */ +struct platform_device *of_find_device_by_node(struct device_node *np) +{ + struct device *dev; + + dev = bus_find_device(&platform_bus_type, NULL, np, of_dev_node_match); + return dev ? to_platform_device(dev) : NULL; +} +EXPORT_SYMBOL(of_find_device_by_node); + static int platform_driver_probe_shim(struct platform_device *pdev) { struct platform_driver *pdrv; |