From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>,
linux-kernel@vger.kernel.org,
Misael Lopez Cruz <misael.lopez@ti.com>,
Benoit Cousson <b-cousson@ti.com>,
devicetree-discuss@lists.ozlabs.org, Liam Girdwood <lrg@ti.com>
Subject: Re: [PATCH 2/3] MFD: twl6040: Allocate IRQ numbers dynamically
Date: Fri, 4 May 2012 13:17:30 +0100 [thread overview]
Message-ID: <20120504121730.GG14230@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <4FA3C3B9.3030009@ti.com>
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On Fri, May 04, 2012 at 02:55:37PM +0300, Peter Ujfalusi wrote:
> On 05/04/2012 02:22 PM, Mark Brown wrote:
> >> The OMAP platform related drives has been already converted to use
> >> irq_alloc_descs(-1, 0, nr_irqs, 0); to map their range (including GPIO,
> >> twl6030, etc).
> > How does this work for interrupts on things like SPI and I2C devices?
> You mean on devices like twl6040, twl6030, twl4030 (I2C MFD devices)?
> Or "irq expander" type of devices?
The latter, and also just any driver that delivers an interrupt via a
GPIO on OMAP - if the GPIO IRQ numbers are all dynamically allocated
then it gets hard to register an off-chip device and tell it which
interrupt to request.
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next prev parent reply other threads:[~2012-05-04 12:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-03 12:54 [PATCH 0/3] MFD: twl6040: Device tree support Peter Ujfalusi
2012-05-03 12:54 ` [PATCH 1/3] MFD: twl6040: Code cleanup in interrupt initialization part Peter Ujfalusi
2012-05-03 12:54 ` [PATCH 2/3] MFD: twl6040: Allocate IRQ numbers dynamically Peter Ujfalusi
2012-05-03 13:20 ` Mark Brown
2012-05-03 13:28 ` Peter Ujfalusi
2012-05-03 14:52 ` Mark Brown
2012-05-03 15:13 ` Peter Ujfalusi
2012-05-03 15:26 ` Mark Brown
2012-05-04 8:38 ` Peter Ujfalusi
2012-05-04 9:08 ` Mark Brown
2012-05-04 10:37 ` Peter Ujfalusi
2012-05-04 11:22 ` Mark Brown
2012-05-04 11:55 ` Peter Ujfalusi
2012-05-04 12:17 ` Mark Brown [this message]
2012-05-04 12:33 ` Peter Ujfalusi
2012-05-04 12:47 ` Mark Brown
2012-05-07 6:49 ` Peter Ujfalusi
2012-05-07 9:49 ` Mark Brown
2012-05-03 12:54 ` [PATCH 3/3] MFD: twl6040: Support for DT Peter Ujfalusi
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