dt: bindings: i2c-mux-pca954x: Add documentation for interrupt controller

Various muxes can aggregate multiple irq lines and provide a control
register to determine the active line. Add bindings for interrupt
controller support.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Peter Rosin <peda@axentia.se>
This commit is contained in:
Phil Reid 2017-01-25 09:31:07 +08:00 • committed by Peter Rosin
commit 9aedcc61ed