From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shawn Guo <shawn.guo@linaro.org>
Subject: Re: [PATCH v4 14/21] ARM: imx6: convert GPC to stacked domains
Date: Tue, 20 Jan 2015 19:19:01 +0800
Message-ID: <20150120111900.GB2766@dragon>
References: <1421660655-21394-1-git-send-email-marc.zyngier@arm.com>
 <1421660655-21394-15-git-send-email-marc.zyngier@arm.com>
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To: Marc Zyngier <marc.zyngier@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>, Thierry Reding <thierry.reding@gmail.com>, Alexandre Courbot <gnurou@gmail.com>, Benoit Cousson <bcousson@baylibre.com>, Tony Lindgren <tony@atomide.com>, Nishanth Menon <nm@ti.com>, Santosh Shilimkar <ssantosh@kernel.org>, Sascha Hauer <kernel@pengutronix.de>, Kukjin Kim <kgene.kim@samsung.com>, Pankaj Dubey <pankaj.dubey@samsung.com>, Simon Horman <horms@verge.net.au>, Magnus Damm <magnus.damm@gmail.com>, Linus Walleij <linus.walleij@linaro.org>, Michal Simek <michal.simek@xilinx.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Jason Cooper <jason@lakedaemon.net>, Thomas Gleixner <tglx@linutronix.de>, Stefan Agner <stefan@agner.ch>, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org

On Mon, Jan 19, 2015 at 09:44:08AM +0000, Marc Zyngier wrote:
> IMX6 has been (ab)using the gic_arch_extn to provide
> wakeup from suspend, and it makes a lot of sense to convert
> this code to use stacked domains instead.
> 
> This patch does just this, updating the DT files to actually
> reflect what the HW provides.
> 
> BIG FAT WARNING: because the DTs were so far lying by not
> exposing the fact that the GPC block is actually the first
> interrupt controller in the chain, kernels with this patch
> applied wont have any suspend-resume facility when booted
> with old DTs, and old kernels with updated DTs won't even boot.
> 
> Tested-by: Stefan Agner <stefan@agner.ch>
> Acked-by: Stefan Agner <stefan@agner.ch>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

Acked-by: Shawn Guo <shawn.guo@linaro.org>

From mboxrd@z Thu Jan  1 00:00:00 1970
From: shawn.guo@linaro.org (Shawn Guo)
Date: Tue, 20 Jan 2015 19:19:01 +0800
Subject: [PATCH v4 14/21] ARM: imx6: convert GPC to stacked domains
In-Reply-To: <1421660655-21394-15-git-send-email-marc.zyngier@arm.com>
References: <1421660655-21394-1-git-send-email-marc.zyngier@arm.com>
 <1421660655-21394-15-git-send-email-marc.zyngier@arm.com>
Message-ID: <20150120111900.GB2766@dragon>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Mon, Jan 19, 2015 at 09:44:08AM +0000, Marc Zyngier wrote:
> IMX6 has been (ab)using the gic_arch_extn to provide
> wakeup from suspend, and it makes a lot of sense to convert
> this code to use stacked domains instead.
> 
> This patch does just this, updating the DT files to actually
> reflect what the HW provides.
> 
> BIG FAT WARNING: because the DTs were so far lying by not
> exposing the fact that the GPC block is actually the first
> interrupt controller in the chain, kernels with this patch
> applied wont have any suspend-resume facility when booted
> with old DTs, and old kernels with updated DTs won't even boot.
> 
> Tested-by: Stefan Agner <stefan@agner.ch>
> Acked-by: Stefan Agner <stefan@agner.ch>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

Acked-by: Shawn Guo <shawn.guo@linaro.org>