On Tue, Jun 19, 2012 at 17:17:19, Mark Brown wrote:

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On Tue, Jun 19, 2012 at 12:25:58PM +0800, Wei Ni wrote:

As Stephen previously said please fix your mail formatting - word 
wrapping within paragraphs is important!

quoted

On Tue, Jun 19, 2012 at 09:23:35, Philip Rakity wrote:

quoted

Why can't you use the regulator notify to get called back on power 
or voltage change options to plumb in the manipulation of the gpio. 
I can imagine you might need to add a notify call in core.c if you 
need to assert the gpio before power is applied

Yes, we can use the regulator notify, but the Tegra30 support is via 
device tree, I think there have no special board file to run the call 
back.

You can mix board files with device tree for cases where device tree is 
not yet up to the job, though the goal should be to come up with a way of expressing things in device tree.

I think we wish to use the device tree to handle these gpios, pass them to the related driver to assert them.
If we mix the board files, we even can set these gpio directly, not use the notify. But I think this is not a goog way.

Wei.
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