[U-Boot] [PATCH v2 05/17] dm: Add a function to bind a device by driver name

Simon Glass
2014-11-11T17:46:21Z

In some cases we need to manually bind a device to a particular driver.
Add a function to do this.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2:
- Add new patch to add a function to bind a device by driver name

drivers/core/lists.c | 21 +++++++++++++++++++++
include/dm/lists.h | 13 +++++++++++++
2 files changed, 34 insertions(+)

diff --git a/drivers/core/lists.c b/drivers/core/lists.c
index 9f33dde..32f2242 100644
--- a/drivers/core/lists.c
+++ b/drivers/core/lists.c
@@ -77,6 +77,27 @@ int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only)
return result;
}

+int device_bind_driver(struct udevice *parent, const char *drv_name,
+ const char *dev_name, struct udevice **devp)
+{
+ struct driver *drv;
+ int ret;
+
+ drv = lists_driver_lookup_name(drv_name);
+ if (!drv) {
+ printf("Cannot find driver '%s'\n", drv_name);
+ return -ENOENT;
+ }
+ ret = device_bind(parent, drv, dev_name, NULL, -1, devp);
+ if (ret) {
+ printf("Cannot create device named '%s' (err=%d)\n",
+ dev_name, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
#ifdef CONFIG_OF_CONTROL
/**
* driver_check_compatible() - Check if a driver is compatible with this node
diff --git a/include/dm/lists.h b/include/dm/lists.h
index 704e33e..1b50af9 100644
--- a/include/dm/lists.h
+++ b/include/dm/lists.h
@@ -60,4 +60,17 @@ int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only);
int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
struct udevice **devp);

+/**
+ * device_bind_driver() - bind a device to a driver
+ *
+ * This binds a new device to a driver.
+ *
+ * @parent: Parent device
+ * @drv_name: Name of driver to attach to this parent
+ * @dev_name: Name of the new device thus created
+ * @devp: Returns the newly bound device
+ */
+int device_bind_driver(struct udevice *parent, const char *drv_name,
+ const char *dev_name, struct udevice **devp);
+
#endif
--
2.1.0.rc2.206.gedb03e5