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dm: Provide better debugging when a device fails to bind

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All devices should bind without error. But when they don't, they can cause
driver model init to fail. A real situation where this can happen is when
there is a missing uclass.

Add a debug() call to dm_scan_fdt_node to make this easier to track.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-08-30 16:55:17 -06:00
parent 3346c87625
commit bc7b2f431d
1 changed files with 4 additions and 1 deletions
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5
drivers/core/root.c
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@ -162,8 +162,11 @@ int dm_scan_fdt_node(struct udevice *parent, const void *blob, int offset,
continue; continue;
} }
err = lists_bind_fdt(parent, blob, offset, NULL); err = lists_bind_fdt(parent, blob, offset, NULL);
if (err && !ret) if (err && !ret) {
ret = err; ret = err;
debug("%s: ret=%d\n", fdt_get_name(blob, offset, NULL),
ret);
}
} }
if (ret) if (ret)