Some device tree nodes do not have compatible strings but do require drivers. This is pretty rare, and somewhat unfortunate. Add a function to permit creation of a driver for any device tree node.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/core/lists.c | 9 ++++++++- include/dm/lists.h | 16 ++++++++++++++++ 2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/drivers/core/lists.c b/drivers/core/lists.c index 647e390..0c49d99 100644 --- a/drivers/core/lists.c +++ b/drivers/core/lists.c @@ -74,6 +74,13 @@ int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only) int device_bind_driver(struct udevice *parent, const char *drv_name, const char *dev_name, struct udevice **devp) { + return device_bind_driver_to_node(parent, drv_name, dev_name, -1, devp); +} + +int device_bind_driver_to_node(struct udevice *parent, const char *drv_name, + const char *dev_name, int node, + struct udevice **devp) +{ struct driver *drv; int ret;
@@ -82,7 +89,7 @@ int device_bind_driver(struct udevice *parent, const char *drv_name, printf("Cannot find driver '%s'\n", drv_name); return -ENOENT; } - ret = device_bind(parent, drv, dev_name, NULL, -1, devp); + ret = device_bind(parent, drv, dev_name, NULL, node, devp); if (ret) { printf("Cannot create device named '%s' (err=%d)\n", dev_name, ret); diff --git a/include/dm/lists.h b/include/dm/lists.h index 1b50af9..61610e6 100644 --- a/include/dm/lists.h +++ b/include/dm/lists.h @@ -73,4 +73,20 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset, int device_bind_driver(struct udevice *parent, const char *drv_name, const char *dev_name, struct udevice **devp);
+/** + * device_bind_driver_to_node() - bind a device to a driver for a node + * + * This binds a new device to a driver for a given device tree node. This + * should only be needed if the node lacks a compatible strings. + * + * @parent: Parent device + * @drv_name: Name of driver to attach to this parent + * @dev_name: Name of the new device thus created + * @node: Device tree node + * @devp: Returns the newly bound device + */ +int device_bind_driver_to_node(struct udevice *parent, const char *drv_name, + const char *dev_name, int node, + struct udevice **devp); + #endif