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From: Arnd Bergmann <arnd@arndb.de>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Fabio Estevam <festevam@gmail.com>,
	sameo@linux.intel.com, ashish.jangam@kpitcummins.com,
	dchen@diasemi.com, kernel@pengutronix.de,
	linux-kernel@vger.kernel.org,
	Fabio Estevam <fabio.estevam@freescale.com>
Subject: Re: [PATCH 2/6] mfd: da9052: Introduce da9052-irq.c
Date: Thu, 4 Oct 2012 12:17:28 +0000	[thread overview]
Message-ID: <201210041217.28343.arnd@arndb.de> (raw)
In-Reply-To: <20121004111412.GJ4360@opensource.wolfsonmicro.com>

On Thursday 04 October 2012, Mark Brown wrote:
> Aside from hiding the lookup of the irqdomian a bit there's a couple of
> reasons for existing devices having them:
> 
>  - With some devices like WM8994 the interrupts are optional so it's
>    useful to eat errors due to the interrupts not existing.  With the
>    ability to use linear domains this doesn't matter terribly much as we
>    can just allocate the interrupts even if there's no way they can
>    fire, it was more of an issue when irqdomain wasn't available.
> 
>  - With Arizona we've actually got a bunch of interrupt controllers the
>    interrupts might be allocated to and these functions allow us to hide
>    this mapping from the subdrivers.  This is pretty specialist though.
> 
> but if the interrupts are always requestable it really makes little
> odds, just a matter of taste.

Ok, thanks for the explanation. Since this was my only concern on this
version of the series:

Acked-by: Arnd Bergmann <arnd@arndb.de>

  reply	other threads:[~2012-10-04 12:17 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-04  3:15 [PATCH 1/6] mfd: da9052-core: Use regmap_irq_get_virq() and fix the probe Fabio Estevam
2012-10-04  3:15 ` [PATCH 2/6] mfd: da9052: Introduce da9052-irq.c Fabio Estevam
2012-10-04  7:12   ` Arnd Bergmann
2012-10-04 11:14     ` Mark Brown
2012-10-04 12:17       ` Arnd Bergmann [this message]
2012-10-04 11:25   ` Mark Brown
2012-10-04  3:15 ` [PATCH 3/6] Input: da9052_tsi.c: Fix interrupt handling Fabio Estevam
2012-10-04  3:15 ` [PATCH 4/6] Input: da9052_onkey.c: Convert to the new da9052 interrupt functions Fabio Estevam
2012-10-05 18:57   ` Mark Brown
2012-10-04  3:15 ` [PATCH 5/6] power: da9052-battery: " Fabio Estevam
2012-10-05 18:58   ` Mark Brown
2012-11-18  4:20   ` Anton Vorontsov
2012-11-18 12:30     ` Fabio Estevam
2012-10-04  3:15 ` [PATCH 6/6] gpio: gpio-da9052: " Fabio Estevam
2012-10-04 11:26   ` Mark Brown
2012-10-08  6:20   ` Linus Walleij
2012-10-08 10:40     ` Fabio Estevam
2012-10-09 12:04       ` Linus Walleij
2012-10-09 12:19         ` Fabio Estevam
2012-10-04 11:26 ` [PATCH 1/6] mfd: da9052-core: Use regmap_irq_get_virq() and fix the probe Mark Brown
2012-11-12 16:22   ` Fabio Estevam
2012-11-18 23:44 ` Samuel Ortiz

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