greybus: power_supply: invalidate cache at update request

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When we receive a update request we shall not trust the cache mechanism
and for that we need a way to invalidate the cache. Add a field that
will control the cache status and refactor the code to check if cache is
valid in a helper function.

This will fix the scenario where an update request is received within
the cache expiration time after a previous update as happened and would
be ignored.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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Rui Miguel Silva 2016-08-16 22:31:57 +01:00 • committed by Greg Kroah-Hartman

parent 5f66d62e83

commit b5fbe819af

1 changed files with 26 additions and 5 deletions

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drivers/staging/greybus/power_supply.c

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