[PATCH] genirq: Introduce irq_read_line()

[Thomas Gleixner]

On Thu, 4 Sep 2014, Bjorn Andersson wrote:

> On Tue, Aug 19, 2014 at 1:23 PM, Bjorn Andersson
> <bjorn.andersson at sonymobile.com> wrote:
> > Introduce the irq_read_line() function to allow device drivers to read
> > the current logical state of an input when the hardware only exposes
> > this through status bits in the interrupt controller.
> >
> > The new function is backed by a new callback function in the irq_chip -
> > irq_read_line() - that can be implemented by irq_chips that owns such
> > status bits.
> >
> > Based on rfc patch from April 2011 by Abhijeet.
> >
> > Cc: Abhijeet Dharmapurikar <adharmap at codeaurora.org>
> > Signed-off-by: Bjorn Andersson <bjorn.andersson at sonymobile.com>
> 
> ping?

Sorry, slipped through the cracks. I was talking about this to Marc
last week and he needs it for yet another reason. He had some thoughts
about the state representation, so I wait for him to comment.

Thanks,

	tglx