Re: [PATCH v6 0/4] clk: Provide support for always-on clocks

From: Stephen Boyd
Date: Wed Apr 08 2015 - 01:28:32 EST

On 04/07, Lee Jones wrote:
> Lots of platforms contain clocks which if turned off would prove fatal.
> The only way to recover from these catastrophic failures is to restart
> the board(s). Now, when a clock provider is registered with the
> framework it is possible for a list of always-on clocks to be supplied
> which must be kept ungated. Each clock mentioned in the newly
> introduced 'clock-always-on' will be clk_prepare_enable()d where the
> normal references will be taken. This will prevent the common clk
> framework from attempting to gate them during the clk_disable_unused()
> and disable_clock() procedures.

Ah I see now. The disable_clock() part is from the PM core not
the common clock framework. This paragraph could be the commit
text for the binding patch.

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