[PATCH] genirq: Introduce irq_read_line()

[Bjorn Andersson]

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?