On Wed, 27 Jul 2016 09:40:20 +0200
Maxime Ripard [off-list ref] wrote:

quoted

quoted

Parenting functions would also not work as expected,
clk_hw_get_parent_by_index being the obvious example, in that case
returning the empty string for an invalid parent, while it should
really return NULL.

I don't see why the clock should be orphan.
Then, when a parent is "", clk_hw_get_parent_by_index() returns NULL.

Why? It should return NULL when there's no parent, while you
explicitly registered a parent.

"" is not an existing parent. It could be "none" / "dum" / "toto" / ...
with the same result: 'this index cannot be used in mux'.

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