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dm: core: Add a post_bind method for parents

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Allow parent drivers to be called when a new child is bound to them. This
allows a bus to set up information it needs for that child.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
This commit is contained in:
Simon Glass
2015-01-25 08:27:03 -07:00
parent ba8da9dc43
commit 0118ce7957
3 changed files with 49 additions and 0 deletions
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12
drivers/core/device.c
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@@ -111,12 +111,24 @@ int device_bind(struct udevice *parent, struct driver *drv, const char *name,
if (ret)
goto fail_bind;
}
if (parent && parent->driver->child_post_bind) {
ret = parent->driver->child_post_bind(dev);
if (ret)
goto fail_child_post_bind;
}
if (parent)
dm_dbg("Bound device %s to %s\n", dev->name, parent->name);
*devp = dev;
return 0;
fail_child_post_bind:
if (drv->unbind && drv->unbind(dev)) {
dm_warn("unbind() method failed on dev '%s' on error path\n",
dev->name);
}
fail_bind:
if (uclass_unbind_device(dev)) {
dm_warn("Failed to unbind dev '%s' on error path\n",