On Wed, May 11, 2016 at 7:40 PM, Sylvain Lemieux
[off-list ref] wrote:

From: Sylvain Lemieux <redacted>

The "to_irq" functionality is broken inside this driver since commit
76ba59f8366f ("genirq: Add irq_domain-aware core IRQ handler").

The addition of the new lpc32xx irqchip driver in 4.7, fixed the
lpc32xx platform interrupt issue.

When switching to the new lpc32xx irqchip driver, a warning appear
in the lpc32xx gpio driver: warning: "NR_IRQS" redefined.

To remove this warning (temporary solution), this patch
disables the broken "to_irq" mapping functionality support.

Signed-off-by: Sylvain Lemieux <redacted>

Patch applied for fixes with Vladimir's ACK.

* The final solution is to replace the existing lpc32xx gpio driver.
  This work is currently in progress; refer to the following URL:
  http://thread.gmane.org/gmane.linux.drivers.devicetree/144696

Hm, I see that the ambition was to merge the new irqchip
driver and the new GPIO driver in the same merge window.
Sorry if I was being too lazy/picky/whatever about the patch(es)
I guess I didn't quite get the scope of this change. :(

I should say that as long as we can agree that the new code
makes the kernel as a whole a better place, I am happy to
merge it. Sometimes also I need to zoom out from the GPIO
and pin control subsystem(s) and see the big picture.

Yours,
Linus Walleij