diff options
Diffstat (limited to 'drivers/of')
-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 @@ | |||
22 | #include <linux/of_platform.h> | 22 | #include <linux/of_platform.h> |
23 | #include <linux/platform_device.h> | 23 | #include <linux/platform_device.h> |
24 | 24 | ||
25 | static int of_dev_node_match(struct device *dev, void *data) | ||
26 | { | ||
27 | return dev->of_node == data; | ||
28 | } | ||
29 | |||
30 | /** | ||
31 | * of_find_device_by_node - Find the platform_device associated with a node | ||
32 | * @np: Pointer to device tree node | ||
33 | * | ||
34 | * Returns platform_device pointer, or NULL if not found | ||
35 | */ | ||
36 | struct platform_device *of_find_device_by_node(struct device_node *np) | ||
37 | { | ||
38 | struct device *dev; | ||
39 | |||
40 | dev = bus_find_device(&platform_bus_type, NULL, np, of_dev_node_match); | ||
41 | return dev ? to_platform_device(dev) : NULL; | ||
42 | } | ||
43 | EXPORT_SYMBOL(of_find_device_by_node); | ||
44 | |||
25 | static int platform_driver_probe_shim(struct platform_device *pdev) | 45 | static int platform_driver_probe_shim(struct platform_device *pdev) |
26 | { | 46 | { |
27 | struct platform_driver *pdrv; | 47 | struct platform_driver *pdrv; |