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Commit 016e2be9 authored by This contributor prefers not to receive mails's avatar This contributor prefers not to receive mails Committed by Tom Rini
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serial: Implement flush callback



UART drivers have putc/puts functions which just put characters into HW
transmit queue and do not wait until all data are transmitted.

Implement flush callback via serial driver's pending(false) callback which
waits until HW transmit all characters from the queue.

Signed-off-by: default avatarPali Rohár <pali@kernel.org>
Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
parent 974f4836
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