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Message-ID: <alpine.DEB.2.11.1501261115300.5526@nanos>
Date: Mon, 26 Jan 2015 11:16:45 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: Stefan Agner <stefan@...er.ch>
cc: jason@...edaemon.net, marc.zyngier@....com,
u.kleine-koenig@...gutronix.de, shawn.guo@...aro.org,
kernel@...gutronix.de, arnd@...db.de, robh+dt@...nel.org,
pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
linux@....linux.org.uk, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3 0/3] irqchip: vf610-mscm: add support for MSCM
interrupt router
On Thu, 15 Jan 2015, Stefan Agner wrote:
> Splitted out version of the MSCM driver. My first driver based on the
> routeable domain support and was part of the Vybrid Cortex-M4 support
> patchset.
>
> So far the MSCM interrupt router was initialized by the boot loader
> and configured all interrupts for the Cortex-A5 CPU. There are two
> use cases where a proper driver is necessary:
> - To run Linux on the Cortex-M4. When the kernel is running on the
> non-preconfigured CPU, the interrupt router need to be configured
> properly.
> - To support deeper sleep modes: LPSTOP clears the interrupt router
> configuration, hence a driver needs to restore the configuration
> on resume.
> I created a seperate patchset for that driver which hopefully makes
> it easier to get it into mergeable state.
>
> Since I identified some registers likely to be used by other drivers
> (e.g. CPU ID or the CPU Generate Interrupt Register) I also added
> the "syscon" compatible string to make the registers available for
> other drivers in case needed.
>
> This resend version of this patchset is rebased on v3.19-rc4.
Has the discussion with Marc on the original V3 set been resolved?
What about the DT bindings? I'm relucant to pick that up w/o acks from
the DT folks.
Thanks,
tglx
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