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dm: Add a function to bind a device by driver name

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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>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Acked-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Simon Glass 2014-11-11 10:46:21 -07:00
parent a88340dfcf
commit e33dc221f4
2 changed files with 34 additions and 0 deletions
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21
drivers/core/lists.c
View File

@ -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

13
include/dm/lists.h
View File

@ -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