linux-kernel - Re: SOC-specific action for irq_set

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Message-ID: <alpine.DEB.2.11.1607200836590.3564@nanos>
Date:	Wed, 20 Jul 2016 08:38:22 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andy Gross <andy.gross@...aro.org>
cc:	Sören Brinkmann <soren.brinkmann@...inx.com>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	linux-arm-kernel@...ts.infradead.org,
	Michal Simek <michal.simek@...inx.com>,
	linux-kernel@...r.kernel.org
Subject: Re: SOC-specific action for irq_set_wake

On Tue, 19 Jul 2016, Andy Gross wrote:

> So not too long ago there were irq extensions that you could add in to an
> irq controller that would allow for intercepting the set wake calls.  This
> went away and was replaced by the hierarchical irq design.

For a very good reason. The 'extensions' were a horrible hack and an
unmaintainable mess. This problem is not that hard to solve w/o these hacks.

Thanks,

	tglx