From mboxrd@z Thu Jan  1 00:00:00 1970
From: tony@atomide.com (Tony Lindgren)
Date: Tue, 5 Jul 2011 23:43:26 -0700
Subject: [PATCH] OMAP: hwmod: add kernel cmdline flag to avoid
	resetting IP blocks during init
In-Reply-To: <alpine.DEB.2.00.1107051955450.4217@utopia.booyaka.com>
References: <20110703010204.19046.85186.stgit@dusk>
	<20110703010206.19046.85293.stgit@dusk>
	<20110704085503.GQ23145@atomide.com>
	<alpine.DEB.2.00.1107051936250.4217@utopia.booyaka.com>
	<alpine.DEB.2.00.1107051955450.4217@utopia.booyaka.com>
Message-ID: <20110706064326.GI5783@atomide.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

* Paul Walmsley <paul@pwsan.com> [110705 18:55]:
> On Tue, 5 Jul 2011, Paul Walmsley wrote:
> 
> > For this case, we probably need some board file function to tell the 
> > hwmod code to disregard a device completely, to tell the kernel to 
> > pretend that the device does not exist.
> 
> ... and the other problem here is that we currently probe devices via an 
> arch_initcall(), and the board file init_machine is also an arch_initcall.
> Either we'll need to be very careful about Makefile ordering, or we should 
> just call omap2_init_devices() from the board file init_machine directly.
> The latter makes the most sense to me.

And that can then be passed the list of devices with the special flags
for noreset, disabled and reserved. Then the late_initcall can optionally
reset the rest of the devices.

Regards,

Tony