linux-kernel - Re: [PATCH 1/4] ARM: mmp: add wakeup function for ICU

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Message-ID: <CAN1soZxWkXn4CxJEgZFQHc0MY6Arq2UfpvOEhJ5ZrTKOT=rw4g@mail.gmail.com>
Date:	Tue, 16 Apr 2013 23:13:41 +0800
From:	Haojian Zhuang <haojian.zhuang@...il.com>
To:	Neil Zhang <zhangwm@...vell.com>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Chao Xie <cxie4@...vell.com>
Subject: Re: [PATCH 1/4] ARM: mmp: add wakeup function for ICU

>> > From: Haojian Zhuang [mailto:haojian.zhuang@...il.com]
>> > Sent: 2013年4月13日 20:50
>> > To: Neil Zhang
>> > Cc: Grant Likely; linux-arm-kernel@...ts.infradead.org;
>> > linux-kernel@...r.kernel.org; Chao Xie
>> > Subject: Re: [PATCH 1/4] ARM: mmp: add wakeup function for ICU
>> >
>> > On Thu, Apr 11, 2013 at 11:37 AM, Neil Zhang <zhangwm@...vell.com>
>> > wrote:
>> > > From: Chao Xie <chao.xie@...vell.com>
>> > >
>> > > PXA988 will use GIC as its interrupt controller, and ICU is used as
>> > > wakeup logic. When AP subsystem is powered off, GIC will lose its
>> > > context, the PMU will need ICU to wakeup the AP subsystem.
>> > > When ICU works as wakeup logic, there is no need to know
>> > > intc-nr-irqs, change the corresponding code.
>> > >
>> > > Signed-off-by: Chao Xie <chao.xie@...vell.com>
>> > > Signed-off-by: Neil Zhang <zhangwm@...vell.com>
>> > > ---
>> >
>> > Since it's totally different from original ICU irq initialization, I
>> > suggest to create a new entry to handle this kind of wakeup event. And
>> > we could create a new mask/unmask function.
>>
>> Ok, I'll update it.
> Are you OK if use icu_mask_irq_wakeup / icu_unmask_irq_wakeup for the new functions.

Yes, it's ok to me.
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