Re: [PATCH 0/4] serial: omap: robustify for high speed transfers

[Sebastian Andrzej Siewior]

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