Messages in this thread | | | From | Robert Jarzmik <> | Subject | Re: [PATCH v3 2/3] spi: pxa2xx: Prepare for edge-triggered interrupts | Date | Fri, 20 Jan 2017 08:42:11 +0100 |
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Jan Kiszka <jan.kiszka@siemens.com> 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@siemens.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cheers.
-- Robert
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