From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv3 4/4] ARM: OMAP3+: add prcm chain interrupts to the interrupt list
Date: Thu, 1 Mar 2012 09:46:53 +0000 [thread overview]
Message-ID: <20120301094653.GA7413@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1330529106-10423-5-git-send-email-t-kristo@ti.com>
On Wed, Feb 29, 2012 at 05:25:06PM +0200, Tero Kristo wrote:
> Currently PRCM chain handler for OMAP4 requires SPARSE_IRQ to be enabled
> from kernel config, however enabling this option breaks the OMAP kernel
> completely and it can't be used.
No it does not. Look:
irq_alloc_descs(start, from, num, -1)
will allocate num interrupt descriptors from within from..NR_IRQS if
sparse IRQ is disabled. So, provided there is sufficient space within
the available NR_IRQS, irq_alloc_descs() works for non-sparse IRQ.
There is no need to get rid of it at all.
If start is -1, then it will allocate from where-ever it can in the
range from..NR_IRQS. Otherwise, it will fail if it can't get an
allocation starting at 'start'.
If sparse IRQ is enabled, then it will start allocating from whatever
the last figure output from the:
NR_IRQS:%d nr_irqs:%d %d
line.
next prev parent reply other threads:[~2012-03-01 9:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-29 15:25 [PATCHv3 0/4] ARM: OMAP4: core retention support Tero Kristo
2012-02-29 15:25 ` [PATCHv3 1/4] ARM: OMAP4: suspend: Program all domains to retention Tero Kristo
2012-03-06 0:33 ` Kevin Hilman
2012-03-06 8:31 ` Tero Kristo
2012-03-06 8:43 ` Rajendra Nayak
2012-03-06 8:54 ` Tero Kristo
2012-03-06 8:59 ` Rajendra Nayak
2012-03-06 9:23 ` Tero Kristo
2012-02-29 15:25 ` [PATCHv3 2/4] ARM: OMAP4: prm: fix interrupt register offsets Tero Kristo
2012-02-29 16:51 ` Paul Walmsley
2012-02-29 15:25 ` [PATCHv3 3/4] TEMP: ARM: OMAP4: hwmod_data: Do not get DSP out of reset at boot time Tero Kristo
2012-02-29 15:25 ` [PATCHv3 4/4] ARM: OMAP3+: add prcm chain interrupts to the interrupt list Tero Kristo
2012-03-01 7:01 ` Rajendra Nayak
2012-03-01 8:23 ` Tero Kristo
2012-03-01 9:46 ` Russell King - ARM Linux [this message]
2012-03-01 10:03 ` Tero Kristo
2012-02-29 15:34 ` [PATCHv3 0/4] ARM: OMAP4: core retention support Shilimkar, Santosh
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