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由 Dmitry Torokhov 提交于
We are reading GPIO state in a non-atomic context (workqueue), so we can use "cansleep" variant, and thus make the driver available on systems where GPIO controllers require sleeping when reading GPIO state. Reviewed-by: NDaniel Mack <daniel@zonque.org> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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