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| /openbmc/linux/drivers/tty/serial/ |
| H A D | imx.c | 982ae337 Thu Apr 11 07:19:23 CDT 2024 Esben Haabendal <esben@geanix.com> serial: imx: Introduce timeout when waiting on transmitter empty
[ Upstream commit e533e4c62e9993e62e947ae9bbec34e4c7ae81c2 ]
By waiting at most 1 second for USR2_TXDC to be set, we avoid a potential
deadlock.
In case of the timeout, there is not much we can do, so we simply ignore
the transmitter state and optimistically try to continue.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/919647898c337a46604edcabaf13d42d80c0915d.1712837613.git.esben@geanix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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