mfd: stmpe: Document DT binding for irq_over_gpio

STMPE now supports using a GPIO as an IRQ source.  Document the device
tree binding for this option.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Sean Cross 2014-09-12 11:18:34 +08:00 • committed by Lee Jones
commit 0bf1f0cda1