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>
next prev parent 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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