linux-kernel - Re: [PATCH 03/12] mtd: nand: omap: Move IRQ handling from GPMC to NAND driver

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Message-ID: <20150713071008.GC26485@atomide.com>
Date:	Mon, 13 Jul 2015 00:10:09 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Roger Quadros <rogerq@...com>
Cc:	dwmw2@...radead.org, computersforpeace@...il.com,
	bcousson@...libre.com, ezequiel@...guardiasur.com.ar,
	linux-mtd@...ts.infradead.org, linux-omap@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/12] mtd: nand: omap: Move IRQ handling from GPMC to
 NAND driver

* Roger Quadros <rogerq@...com> [150710 05:26]:
> Since the Interrupt Events are used only by the NAND driver,
> there is no point in managing the Interrupt registers
> in the GPMC driver and complicating it with irqchip modeling.

I don't think it's a good idea to allow external drivers to
tinker directly with GPMC registers. How about just set up GPMC
as an irqchip for the edge detection interrupts?

I think we already have devices with multiple NAND chips. And
there's nothing stopping other drivers from using the edge
detection interrupts.

Regards,

Tony
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