From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: mvebu: fix ordering in Armada 370 .dtsi
Date: Mon, 17 Nov 2014 10:49:15 +0100 [thread overview]
Message-ID: <20141117104915.0c16e554@free-electrons.com> (raw)
In-Reply-To: <20141114202200.GI2001@lunn.ch>
Dear Andrew Lunn,
On Fri, 14 Nov 2014 21:22:00 +0100, Andrew Lunn wrote:
> Humm.
>
> Now we have things in the right order, we see that the
> system-controller and the clock-gating-controller overlap.
>
> I know the HW engineers have gone a bit crazy around here, so maybe we
> have no choice?
Not nice indeed. All those "system-level" registers that do not belong
to clearly identified hardware blocks are really a mess. Maybe it's
time to use the 'syscon' infrastructure to deal with those registers?
Unfortunately, due to the major pain caused by DT backward
compatibility, switching completely and properly to syscon is probably
going to be difficult if we don't want to break old Device Tree files.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Petazzoni <thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>
Cc: "Uwe Kleine-König"
<u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
"Jason Cooper" <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
"Gregory Clement"
<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
"Sebastian Hesselbarth"
<sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH] ARM: mvebu: fix ordering in Armada 370 .dtsi
Date: Mon, 17 Nov 2014 10:49:15 +0100 [thread overview]
Message-ID: <20141117104915.0c16e554@free-electrons.com> (raw)
In-Reply-To: <20141114202200.GI2001-g2DYL2Zd6BY@public.gmane.org>
Dear Andrew Lunn,
On Fri, 14 Nov 2014 21:22:00 +0100, Andrew Lunn wrote:
> Humm.
>
> Now we have things in the right order, we see that the
> system-controller and the clock-gating-controller overlap.
>
> I know the HW engineers have gone a bit crazy around here, so maybe we
> have no choice?
Not nice indeed. All those "system-level" registers that do not belong
to clearly identified hardware blocks are really a mess. Maybe it's
time to use the 'syscon' infrastructure to deal with those registers?
Unfortunately, due to the major pain caused by DT backward
compatibility, switching completely and properly to syscon is probably
going to be difficult if we don't want to break old Device Tree files.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
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next prev parent reply other threads:[~2014-11-17 9:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 19:36 [PATCH] ARM: mvebu: fix ordering in Armada 370 .dtsi Uwe Kleine-König
2014-11-14 19:36 ` Uwe Kleine-König
2014-11-14 20:22 ` Andrew Lunn
2014-11-14 20:22 ` Andrew Lunn
2014-11-17 9:49 ` Thomas Petazzoni [this message]
2014-11-17 9:49 ` Thomas Petazzoni
2014-11-14 20:43 ` [PATCH v2] " Uwe Kleine-König
2014-11-14 20:43 ` Uwe Kleine-König
2014-11-14 20:50 ` Andrew Lunn
2014-11-14 20:50 ` Andrew Lunn
2014-11-22 3:37 ` Jason Cooper
2014-11-22 3:37 ` Jason Cooper
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