Re: [PATCH] regulator: Support voltage offsets to compensate fordrops in system
From: Liam Girdwood
Date: Mon May 09 2011 - 12:01:43 EST
On Sun, 2011-05-08 at 22:13 +0100, Mark Brown wrote:
> Some systems, particularly physically large systems used for early
> prototyping, may experience substantial voltage drops between the regulator
> and the consumers as a result of long traces in the system. With these
> systems voltages may need to be set higher than requested in order to
> ensure reliable system operation.
>
> Allow systems to work around such hardware issues by allowing constraints
> to supply an offset to be applied to any requested and reported voltages.
> This is not ideal, especially since the voltage drop may be load dependant,
> but is sufficient for most affected systems, it is not expected to be used
> in production hardware. The offset is applied after all constraint
> processing so constraints should be specified in terms of consumer values
> not physically configured values.
>
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
Applied.
Thanks
Liam
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