Re: [PATCH v2] clk: walk orphan list on clock provider registration

From: Stephen Boyd
Date: Thu Dec 12 2019 - 21:54:37 EST

Quoting Jerome Brunet (2019-12-03 00:08:05)
> So far, we walked the orphan list every time a new clock was registered
> in CCF. This was fine since the clocks were only referenced by name.
> Now that the clock can be referenced through DT, it is not enough:
> * Controller A register first a reference clocks from controller B
> through DT.
> * Controller B register all its clocks then register the provider.
> Each time controller B registers a new clock, the orphan list is walked
> but it can't match since the provider is registered yet. When the
> provider is finally registered, the orphan list is not walked unless
> another clock is registered afterward.
> This can lead to situation where some clocks remain orphaned even if
> the parent is available.
> Walking the orphan list on provider registration solves the problem.
> Reported-by: Jian Hu <>
> Fixes: fc0c209c147f ("clk: Allow parents to be specified without string names")
> Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
> ---

Applied to clk-fixes