staging: wfx: introduce a way to poll IRQ

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It is possible to check if an IRQ is ending by polling the control
register. This function must used with care: if an IRQ fires while the
host reads control register, the IRQ can be lost. However, it could be
useful in some cases.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200505123757.39506-8-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jérôme Pouiller 2020-05-05 14:37:49 +02:00 • committed by Greg Kroah-Hartman

parent a7efb62509

commit 57aa557f11

2 changed files with 29 additions and 0 deletions

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28

drivers/staging/wfx/bh.c

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1

drivers/staging/wfx/bh.h

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