Thread (40 messages) 40 messages, 7 authors, 2014-01-08

[PATCH] driver-core: platform: Resolve DT interrupt references late

From: tony@atomide.com (Tony Lindgren)
Date: 2014-01-08 21:44:05
Also in: linux-devicetree, linux-omap, lkml

* Thierry Reding [off-list ref] [140108 11:32]:
On Wed, Jan 08, 2014 at 08:40:41AM -0800, Tony Lindgren wrote:
quoted
There's nothing wrong with the interrupt related code paths, we're just
trying to call the functions at a wrong time when thing are not yet
initialized.
The patch won't get rid of that warning, but it should at least restore
things to a working state at runtime. At least for well-behaved drivers
that use platform_get_irq() rather than those that try to access the
resources directly.
Well the problem I'm seeing is these nasty warnings.

BTW, I think the issue you're talking about regarding platform_get_irq()
got fixed by 4a43d686fe33 (of/irq: Pass trigger type in IRQ resource flags).
 
quoted
Below is a repost of what works for me without using notifiers. Anybody
got any better ideas for a minimal fix?
That patch is somewhat big for something that should be a minimal fix.
Being the size that it is it might have undesired side-effects that may
not get noticed until it's way too late, so I'm hesitant to have
something like this merged at this point in the release cycle.
Yes I agree it's rather invasive, but we also do have things pretty
badly broken in the kernel for device tree based booting. And it seems
that nobody has a smaller patch that would fix it.

Regards,

Tony
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