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 9f3840cdcde..f79f40b516c 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; |