Re: GPIO: Performance sensitive applications, gpiochip-level locking

[Mark Brown]

On Mon, Sep 30, 2013 at 10:29:26AM -0700, Darren Hart wrote:

> Is there a best practice for dealing with this kind of configuration?

> If not, would it make sense to add optional gpiochip-level lock/unlock
> and lockless direction and value operations to the gpiochip function
> block?

Another thing people keep suggesting for this is a block GPIO set
operation - something that will let you configure multiple GPIOs with a
single call.  That maps nicely onto hardware which has a single register
for multiple GPIOs but there's been abstraction problems implementing
it.

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