Messages in this thread | | | Date | Sun, 7 Feb 2010 23:56:50 +0000 | From | Mark Brown <> | Subject | Re: [PATCH] regulator: Add enable_time on probe of WM8994 |
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On Sun, Feb 07, 2010 at 09:41:26AM +0900, Joonyoung Shim wrote: > WM8994 regulator needs some delay to enable when it is probed too.
What is the problem that's fixed by this change?
The only case I can think of where it would help is if the regulator constraints are used to enable the regulators and run them at a non-default voltage. (which is not a recommended configuration since this would mean raising the voltage and therefore increasing power consumption). For that case this is not quite enough of a change since the LDO that is being controlled may not be the one that brings the device out of power on reset. More extensive rearrangement of the core regulator code would be required to deal with that, reordering the application of constraints.
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