From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 8/9] dma IPU: rework irq handling
Date: Fri, 20 May 2011 15:30:22 +0200 [thread overview]
Message-ID: <20110520133022.GE10403@pengutronix.de> (raw)
In-Reply-To: <alpine.LFD.2.02.1105201507250.3078@ionos>
On Fri, May 20, 2011 at 03:16:42PM +0200, Thomas Gleixner wrote:
> On Fri, 20 May 2011, Sascha Hauer wrote:
> > @@ -354,48 +139,41 @@ static struct irq_chip ipu_irq_chip = {
> > /* Install the IRQ handler */
> > int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
> > {
> > - struct ipu_platform_data *pdata = dev->dev.platform_data;
> > - unsigned int irq, irq_base, i;
> > + unsigned int irq, irq_base;
> >
> > - irq_base = pdata->irq_base;
> > + irq_base = irq_alloc_descs(-1, 0, IPU_IRQ_NR_BANKS * 32, 0);
>
> IPU_NUM_IRQS perhaps ?
>
> > + if (irq_base < 0)
> > + return irq_base;
>
> So this allocates 160 interrupts. How many of them are actually going
> to be used ?
One for the framebuffer and another one for the camera...
BTW often enough it's the same for the gpio interrupts. I have plenty of
boards ending up with a single gpio interrupt out of 160 used for a
external network controller.
Sascha
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next prev parent reply other threads:[~2011-05-20 13:30 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-20 7:59 i.MX: switch to sparse irqs Sascha Hauer
2011-05-20 7:59 ` [PATCH 1/9] ARM i.MX tzic: do not depend on MXC_INTERNAL_IRQS Sascha Hauer
2011-05-20 7:59 ` [PATCH] mfd wm8350: allocate irq descs dynamically Sascha Hauer
2011-05-20 12:52 ` Thomas Gleixner
2011-05-20 13:07 ` Sascha Hauer
2011-05-20 13:19 ` Thomas Gleixner
2011-05-21 11:29 ` Mark Brown
2011-05-23 6:25 ` Sascha Hauer
2011-05-23 10:44 ` Mark Brown
2011-05-23 14:41 ` Sascha Hauer
2011-05-23 15:22 ` Mark Brown
2011-05-23 16:46 ` Sascha Hauer
2011-05-23 22:41 ` Mark Brown
2011-05-24 7:28 ` Sascha Hauer
2011-05-24 9:46 ` Mark Brown
2011-05-24 11:52 ` Sascha Hauer
2011-05-24 15:35 ` Mark Brown
2011-05-25 8:13 ` Sascha Hauer
2011-05-25 9:23 ` Mark Brown
2011-05-25 19:10 ` Sascha Hauer
2011-05-20 7:59 ` [PATCH 2/9] ARM i.MX avic: do not depend on MXC_INTERNAL_IRQS Sascha Hauer
2011-05-20 7:59 ` [PATCH 3/9] ARM i.MX: get rid of wrong MXC_INTERNAL_IRQ usage Sascha Hauer
2011-05-20 7:59 ` [PATCH 4/9] mfd wm8350: allocate irq descs dynamically Sascha Hauer
2011-05-20 7:59 ` [PATCH 5/9] ARM i.MX mx31ads: allocate irqs for expio dynamically Sascha Hauer
2011-05-20 7:59 ` [PATCH 6/9] ARM i.MX 3ds debugboard: allocate irqs dynamically Sascha Hauer
2011-05-20 7:59 ` [PATCH 7/9] ARM i.MX: use sparse irqs Sascha Hauer
2011-05-20 7:59 ` [PATCH 8/9] dma IPU: rework irq handling Sascha Hauer
2011-05-20 13:16 ` Thomas Gleixner
2011-05-20 13:30 ` Sascha Hauer [this message]
2011-05-20 16:46 ` Thomas Gleixner
2011-05-20 22:11 ` Benjamin Herrenschmidt
2011-05-20 7:59 ` [PATCH 9/9] ARM i.MX3: remove now useless ipu platform data from boards Sascha Hauer
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