dt: Add default match table for bus ids

No need for most platforms to define their own bus table when calling
of_platform_populate().  Supply a stock one.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 63d3cb7..bb483ef 100644 (file)
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -22,6 +22,14 @@
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 
+const struct of_device_id of_default_bus_match_table[] = {
+       { .compatible = "simple-bus", },
+#ifdef CONFIG_ARM_AMBA
+       { .compatible = "arm,amba-bus", },
+#endif /* CONFIG_ARM_AMBA */
+       {} /* Empty terminated list */
+};
+
 static int of_dev_node_match(struct device *dev, void *data)
 {
        return dev->of_node == data;

diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index fb51ae3..8f023f8 100644 (file)
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -40,6 +40,8 @@ struct of_platform_driver
 #define        to_of_platform_driver(drv) \
        container_of(drv,struct of_platform_driver, driver)
 
+extern const struct of_device_id of_default_bus_match_table[];
+
 /* Platform drivers register/unregister */
 extern struct platform_device *of_device_alloc(struct device_node *np,
                                         const char *bus_id,