linux-kernel - Re: [PATCH V6 3/9] irqdomain: Don't set type when mapping an IRQ

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Message-ID: <CAK7LNARR3WmaPbri3xWmFLJw3gpwgdEPKZw9GvXyVzoiub8Wew@mail.gmail.com>
Date:	Mon, 1 Aug 2016 10:28:44 +0900
From:	Masahiro Yamada <yamada.masahiro@...ionext.com>
To:	Marc Zyngier <marc.zyngier@....com>
Cc:	Jon Hunter <jonathanh@...dia.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Kevin Hilman <khilman@...nel.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-tegra@...r.kernel.org, devicetree@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V6 3/9] irqdomain: Don't set type when mapping an IRQ

2016-07-29 17:10 GMT+09:00 Marc Zyngier <marc.zyngier@....com>:
> On 29/07/16 04:53, Masahiro Yamada wrote:
>> Hi.
>>
>>
>> I noticed my board would not work any more
>> when pulling recent updates.
>>
>>
>> I did "git-bisect" and I found the following commit is it.
>
> It would help if you did post the log showing the failure.
>
> What if you apply the following patch:
>
> https://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/diff/arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi?h=timers/level-trigger&id=95e1fd920fcadce81626cfa9bd6af1a361f17e58
>

Hi Mark,

Yes, it worked.

But I did not understand why you changed the 3rd cell to 0xf08.


The binding of arm,gic-v3.txt says as follows:


  The 3rd cell is the flags, encoded as follows:
        bits[3:0] trigger type and level flags.
                1 = edge triggered
                4 = level triggered


Only 1 and 4 are defined for the bits[3:0].




0xf04 worked, too.

Which is correct?






Best Regards
Masahiro Yamada