Messages in this thread | | | Subject | Re: [PATCH 0/4] serial: omap: robustify for high speed transfers | From | Sebastian Andrzej Siewior <> | Date | Wed, 24 Feb 2016 16:46:34 +0100 |
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On 02/24/2016 04:37 PM, Sekhar Nori wrote: > I don't see the error interrupt count in /proc/interrupts go up although > the code is returning IRQ_NONE when this happens. I initially thought > that must be because of the interrupt being IRQF_SHARED. But getting rid > of IRQF_SHARED still does not lead to error count going up. I need to > spend some more time to see what is going on.
that error counter goes up if the interrupt controller can not find an interrupt number. That means a HW interrupt was raised but after checking the interrupt source (by the GIC) there is none. In this case we have one: the UART.
> Regards, > Sekhar
Sebastian
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