Hi, On Wed, Dec 19, 2018 at 2:12 PM Lina Iyer <ilina@xxxxxxxxxxxxxx> wrote: > > From: Thierry Reding <treding@xxxxxxxxxx> > > Hierarchical IRQ domains can be used to stack different IRQ controllers > on top of each other. One specific use-case where this can be useful is > if a power management controller has top-level controls for wakeup > interrupts. In such cases, the power management controller can be a > parent to other interrupt controllers and program additional registers > when an IRQ has its wake capability enabled or disabled. > > Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> > --- Drive-by-nit: If you are re-posting someone else's patch you need to add your Signed-off-by. -Doug