Re: [PATCH v3 2/3] spi: pxa2xx: Prepare for edge-triggered interrupts

[Robert Jarzmik <robert.jarzmik@xxxxxxx>]

Jan Kiszka <jan.kiszka@xxxxxxxxxxx> writes:

> When using the a device with edge-triggered interrupts, such as MSIs,
> the interrupt handler has to ensure that there is a point in time during
> its execution where all interrupts sources are silent so that a new
> event can trigger a new interrupt again.
>
> This is achieved here by disabling all interrupt sources for a moment
> before processing them according to the status register. If a new
> interrupt should have arrived after we read the status, it will now
> re-trigger the interrupt, even in edge mode.
>
> Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Acked-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>

Cheers.

--
Robert
 
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