linux-kernel - Re: [RFC PATCH 00/10] ARM: dts: exynos: Fix invalid GIC interrupt flags

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Message-ID: <20160918103436.6af07ee9@arm.com>
Date:   Sun, 18 Sep 2016 10:34:36 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Alim Akhtar <alim.akhtar@...il.com>, Kukjin Kim <kgene@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-samsung-soc@...r.kernel.org" 
        <linux-samsung-soc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Alban Browaeys <alban.browaeys@...il.com>
Subject: Re: [RFC PATCH 00/10] ARM: dts: exynos: Fix invalid GIC interrupt
 flags

On Sat, 17 Sep 2016 19:55:53 +0200
Krzysztof Kozlowski <krzk@...nel.org> wrote:

> On Sat, Sep 17, 2016 at 11:05:39PM +0530, Alim Akhtar wrote:
> > Hi Krzysztof,
> > 
> > On Sat, Sep 17, 2016 at 1:12 AM, Krzysztof Kozlowski <krzk@...nel.org> wrote:  
> > > Hi,
> > >
> > > Marek (internally), Geert and Alban reported errors like:
> > >         genirq: Setting trigger mode 0 for irq 16 failed (gic_set_type+0x0/0x68)
> > > The patchset fixes this issue.
> > >
> > > Tested on:
> > > 1. Exynos4412: Odroid U3,
> > > 2. Exynos5410: Odroid XU,
> > > 3. Exynos5422: Odroid XU3.
> > >  
> > 
> > Tested on Exynos5800 based peach-pi board, so fpr patch 06/10
> > 
> > Tested-by: Alim Akhtar <alim.akhtar@...sung.com>
> > 
> >   
> > > Other platforms not tested so testing would be highly appreciated.
> > >
> > > Best regards,
> > > Krzysztof
> > >
> > > Krzysztof Kozlowski (10):
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos4
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos4210
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos4x12
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos4415
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos3250
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos5
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos5250
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in
> > >     exynos5410/exynos542x
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos5260
> > >   ARM: dts: exynos: Fix invalid GIC interrupt flags in exynos5440
> > >  
> > 
> > In general these patches looks good, feel free to add my review-by tag
> > for this series.
> > 
> > Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
> >   
> 
> Thanks, I'll add your reviewed-by to all patches.

There is a couple of things that I don't like about these patches:

- Are you sure that all your interrupts are level? I appreciate that's
  a very common setting, but you seem to have simply decided that there
  wasn't any edge interrupt. Is that a "Let's see what breaks"
  situation? If so, It'd be good to state it.

- You've used the IRQ_TYPE_LEVEL_HIGH macro everywhere, but didn't use
  the GIC_SPI macro as the first argument of each interrupt specifier.
  I'm by no mean a fan of these macros, but you should at least have
  some consistency inside an interrupt specifier.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny.