Hi,
On Mon, Jan 05, 2015 at 08:01:22PM -0600, Felipe Balbi wrote:
> On Tue, Jan 06, 2015 at 01:16:21AM +0200, Aaro Koskinen wrote:
> > I did some debugging and it seems the "In-band Error"
> > occurs when omap_system_dma_probe() is being run, specifically when
> > the interrupt is enabled. I believe the "DMA" interrupt it's trying
> > set up is completely wrong:
> >
> > 28: 0 GPIO 2 DMA
> >
> > GPIO 2?! Where is that coming from?
>
> heh, it's probably the linux number used ended up mapping to another irq
> domain. Can you add this debugging patch and report dmesg ?
Post-commit:
[ 0.208251] omap_dma_system omap_dma_system.0: legacy DMA IRQ 28
[ 0.216125] omap-dma-engine 48056000.dma-controller: dmaengine IRQ 22
22: 5 INTC 13 omap-dma-engine
28: 0 GPIO 2 DMA
Pre-commit:
[ 0.208557] omap_dma_system omap_dma_system.0: legacy DMA IRQ 28
[ 0.216461] omap-dma-engine 48056000.dma-controller: dmaengine IRQ 29
28: 0 INTC 12 DMA
29: 5 INTC 13 omap-dma-engine
> Note that I need one log post commit and another log pre commit. If any
> of the IRQ numbers change, if means that irq_domain_add_linear() ended
> up changing IRQ start and we would need some trick to grab the correct
> IRQ number again.
So looks like static OMAP_INTC_START cannot be used anymore, but hwmod
data is full of these?
mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c: { .name = "0", .irq = 12 + OMAP_INTC_START, }, /* INT_24XX_SDMA_IRQ0 */
A.
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