linux-kernel - Re: [PATCH 2/3] gpio: langwell: allocate IRQ descriptors dynamically for SPARSE

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Date:	Tue, 10 Apr 2012 10:18:59 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org, linus.walleij@...ricsson.com
Subject: Re: [PATCH 2/3] gpio: langwell: allocate IRQ descriptors dynamically
 for SPARSE_IRQ

On Thu, Apr 05, 2012 at 09:34:14PM -0700, Grant Likely wrote:
> On Thu,  5 Apr 2012 12:15:16 +0300, Mika Westerberg <mika.westerberg@...ux.intel.com> wrote:
> > Since x86 is using SPARSE_IRQ by default nowadays it means that we need to
> > allocate IRQ descriptors dynamically using irq_alloc_descs() otherwise the
> > genirq code fails to convert our irq numbers to suitable descriptors.
> > 
> > Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> 
> Applied, thakns.
> 
> While you're in this driver, you should look at converting to using an
> irq_domain for irq <==> hwirq mapping.  At the very least,
> irq_data->hwirq should be used instead of abusing irq_set_chip_data().

Ok, will do. Thanks.
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