On 4/8/14 1:40 PM, "Christopher Freeman" cfreeman@nvidia.com wrote:
On 4/3/14 3:07 PM, "Mark Brown" broonie@kernel.org wrote:
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On Thu, Apr 03, 2014 at 03:03:55PM -0700, cfreeman@nvidia.com wrote:
From: Christopher Freeman cfreeman@nvidia.com
Export the gpio detect function so machine drivers may call it. Interrupts for the jack may be disabled during sleep, so this allows a machine driver to have the jack status updated during resume.
It seems better to have explicit callbacks for this doesn't it, ideally ones that get triggered by the core without the machine driver having to do anything? This is a common need so having to open code it would be a bit depressing.
Mark, do you have a suggestion on how to plumb this up? The way I see it, the machine drivers own the context for the gpios and soc-jack acts as a helper library. I don't see a way to do this from the core.
Any thoughts? One idea would be to change things such that jacks are registered with the core and the core is then allowed access to the gpio detect functionĊ This would make things common, but we're still opening up a function in the jack code. I don't see another way. (using the existing interface, we could free and add gpios on suspend/resumeĊ :-P)
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