linux-kernel - Re: [PATCH v6 00/15] qcom: spmi: add support for hierarchical IRQ chip

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Message-ID: <86h8e3a7cx.wl-marc.zyngier@arm.com>
Date:   Sun, 20 Jan 2019 11:36:30 +0000
From:   Marc Zyngier <marc.zyngier@....com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Brian Masney <masneyb@...tation.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <andy.gross@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Doug Anderson <dianders@...omium.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Nicolas Dechesne <nicolas.dechesne@...aro.org>,
        Niklas Cassel <niklas.cassel@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        linux-arm-msm@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v6 00/15] qcom: spmi: add support for hierarchical IRQ chip

On Sat, 19 Jan 2019 23:13:45 +0000,
Linus Walleij <linus.walleij@...aro.org> wrote:
> 
> On Sat, Jan 19, 2019 at 9:43 PM Brian Masney <masneyb@...tation.org> wrote:
> 
> > This patch series adds hierarchical IRQ chip support to spmi-gpio so
> > that device tree consumers can request an IRQ directly from the GPIO
> > block rather than having to request an IRQ from the underlying PMIC.
> >
> > For more background information, see the email thread with Linus
> > Walleij's excellent description of the problem at
> > https://www.spinics.net/lists/linux-gpio/msg34655.html.
> >
> > This work was tested on a LG Nexus 5 (hammerhead) phone. My status page
> > at https://masneyb.github.io/nexus-5-upstream/ describes what is working
> > so far with the upstream kernel.
> >
> > Changes since v5:
> > - Patch 4: Set handler to edge or level when the IRQ is mapped.
> > - Patch 7: Change IRQ_TYPE_NONE to IRQ_TYPE_EDGE_RISING
> > - Patch 14: New patch to validate type when mapping IRQ
> 
> If Marc Z is happy I think I will apply all patches on an immutable branch in

As a matter of fact, I am!

> the pin control tree, so that ARM SoC and GPIO can pull it in later if need
> be. (E.g. if they get conflicts.)
> 
> I was thinking to also include the DTS changes as it all is so neatly
> coupled, then offer the branch to ARM SoC.
> 
> Anyone against?

No objection from me whatsoever.

Thanks,

	M.

-- 
Jazz is not dead, it just smell funny.