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-rw-r--r--include/dm/device.h4
-rw-r--r--include/dm/uclass.h18
2 files changed, 22 insertions, 0 deletions
diff --git a/include/dm/device.h b/include/dm/device.h
index c825d47..705849b 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -207,6 +207,10 @@ struct driver {
#define U_BOOT_DRIVER(__name) \
ll_entry_declare(struct driver, __name, driver)
+/* Get a pointer to a given driver */
+#define DM_GET_DRIVER(__name) \
+ ll_entry_get(struct driver, __name, driver)
+
/**
* dev_get_platdata() - Get the platform data for a device
*
diff --git a/include/dm/uclass.h b/include/dm/uclass.h
index fd368b6..84f05bc 100644
--- a/include/dm/uclass.h
+++ b/include/dm/uclass.h
@@ -38,6 +38,7 @@ struct uclass {
struct list_head sibling_node;
};
+struct driver;
struct udevice;
/* Members of this uclass sequence themselves with aliases */
@@ -194,6 +195,23 @@ int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent,
const char *name, struct udevice **devp);
/**
+ * uclass_get_device_by_driver() - Get a uclass device for a driver
+ *
+ * This searches the devices in the uclass for one that uses the given
+ * driver. Use DM_GET_DRIVER(name) for the @drv argument, where 'name' is
+ * the driver name - as used in U_BOOT_DRIVER(name).
+ *
+ * The device is probed to activate it ready for use.
+ *
+ * @id: ID to look up
+ * @drv: Driver to look for
+ * @devp: Returns pointer to the first device with that driver
+ * @return 0 if OK, -ve on error
+ */
+int uclass_get_device_by_driver(enum uclass_id id, const struct driver *drv,
+ struct udevice **devp);
+
+/**
* uclass_first_device() - Get the first device in a uclass
*
* The device returned is probed if necessary, and ready for use