From mboxrd@z Thu Jan  1 00:00:00 1970
From: mbizon@freebox.fr (Maxime Bizon)
Date: Thu, 24 Oct 2013 14:13:21 +0200
Subject: [Ksummit-2013-discuss] ARM topic: Is DT on ARM the solution, or
 is there something better?
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To: linux-arm-kernel@lists.infradead.org
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On Thu, 2013-10-24 at 12:47 +0100, David Woodhouse wrote:

> If you can automatically infer the correct clock/interrupt/etc in order
> to do DMA correctly, despite the fact that it wasn't explicitly spelled
> out in the old DT, then the property is *not* a "required" property.
> It's optional, and you have a default behaviour for when it's not
> present.

so inside the new version of driver-hwcrypto.c:

if (irq_of_parse_and_map(...) == NO_IRQ) {
	switch (get_soc_model()) {
		case SOC1:
			irq = 51;
			break;

		case SOC2:
			irq = 62;
			break;

		[...]
	}
}

?

-- 
Maxime