From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doug Anderson Subject: Re: [PATCH 1/7] gpio: Add support for hierarchical IRQ domains Date: Fri, 18 Jan 2019 10:12:05 -0800 Message-ID: References: <20181219221105.3004-1-ilina@codeaurora.org> <20181219221105.3004-2-ilina@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20181219221105.3004-2-ilina@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: Lina Iyer Cc: Stephen Boyd , Evan Green , Marc Zyngier , LKML , Raju P L S S S N , linux-arm-msm , Thierry Reding , Bjorn Andersson , Thierry Reding List-Id: linux-arm-msm@vger.kernel.org Hi, On Wed, Dec 19, 2018 at 2:12 PM Lina Iyer wrote: > > From: Thierry Reding > > 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 > --- Drive-by-nit: If you are re-posting someone else's patch you need to add your Signed-off-by. -Doug