From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hanjun Guo <hanjun.guo@linaro.org>
Subject: Re: [PATCH 0/5] ACPI probing infrastructure
Date: Thu, 10 Sep 2015 17:03:15 +0800
Message-ID: <55F14753.5070703@linaro.org>
References: <1441386412-8139-1-git-send-email-marc.zyngier@arm.com> <55EEE071.7040506@linaro.org>
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To: Marc Zyngier <marc.zyngier@arm.com>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Len Brown <lenb@kernel.org>, Tomasz Nowicki <tn@semihalf.com>, Thomas Gleixner <tglx@linutronix.de>, Jason Cooper <jason@lakedaemon.net>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Sudeep Holla <sudeep.holla@arm.com>, Will Deacon <will.deacon@arm.com>, Catalin Marinas <catalin.marinas@arm.com>
Cc: linaro-acpi@lists.linaro.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
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On 09/08/2015 09:19 PM, Hanjun Guo wrote:
> Hi Marc,
>
> Sorry for the late response for quite a while...
>
> On 09/05/2015 01:06 AM, Marc Zyngier wrote:
>> IRQ controllers and timers are the two types of device the kernel
>> requires before being able to use the device driver model.
>>
>> ACPI so far lacks a proper probing infrastructure similar to the one
>> we have with DT, where we're able to declare IRQ chips and
>> clocksources inside the driver code, and let the core code pick it up
>> and call us back on a match. This leads to all kind of really ugly
>> hacks all over the arm64 code and even in the ACPI layer.
>>
>> It turns out that providing such a probing infrastructure is rather
>> easy, and provides a much deserved cleanup in both the arch code, the
>> GIC driver, and the architected timer driver.
>>
>> I'm sure there is some more code to be deleted, and one can only
>> wonder why this wasn't done before the arm64 code was initially merged
>> (the diffstat says it all...).
>>
>> Patches are against v4.2, and a branch is available at
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
>> acpi/device-probing

I pulled, and noticed that there is v2, it's cleaner than v1 for the
patch 1/5 to me :)

>
> Great thanks to cleanup these stuff, I will test
> this patch set and review it, will get back to you
> if I get anything.

I tested the v2 and it boots pretty happy as before, if
you post to maillist,

Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

Thanks
Hanjun