linux-kernel - Re: [PATCH v2 3/4] ARM: mvebu: Allow using the GIC for wakeup in standby mode

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Message-ID: <55B60FBE.7060606@arm.com>
Date:	Mon, 27 Jul 2015 12:02:22 +0100
From:	Sudeep Holla <sudeep.holla@....com>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>
CC:	Sudeep Holla <sudeep.holla@....com>,
	Lior Amsalem <alior@...vell.com>, Andrew Lunn <andrew@...n.ch>,
	Jason Cooper <jason@...edaemon.net>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Nadav Haklai <nadavh@...vell.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [PATCH v2 3/4] ARM: mvebu: Allow using the GIC for wakeup in
 standby mode

Hi Thomas/Gregory,

On 01/07/15 16:54, Thomas Petazzoni wrote:
> Dear Gregory CLEMENT,
>
> On Tue, 30 Jun 2015 19:18:59 +0200, Gregory CLEMENT wrote:
>
>>   static void __init mvebu_init_irq(void)
>>   {
>> +	if (of_machine_is_compatible("marvell,armada375") ||
>> +	    of_machine_is_compatible("marvell,armada380") ||
>> +	    of_machine_is_compatible("marvell,armada390"))
>
> What we really want to know is if we're using the GIC, so what about
> instead:
>
> 	np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-gic");
> 	if (np)
> 		gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE |
> 				      IRQCHIP_MASK_ON_SUSPEND);

As I had mentioned before, this function was planned to be removed. tglx
has now pulled in the patch into tip/core[1]. If this patch is already
pulled in, it's better to revert so that it won't break the build in
linux-next. Since the flags are now moved to GIC driver, this patch is
no longer required. Sorry for the trouble.

Regards,
Sudeep

[1] 
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=irq/core&id=0d3f2c92e004c67404fabea19728c1962b777bd6
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