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Commit f6a41034 authored by Ryan Case's avatar Ryan Case Committed by Bruce Ashfield
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tty: serial: qcom_geni_serial: Fix UART hang



[ Upstream commit 663abb1a ]

If a serial console write occured while a UART transmit command was
waiting for a done signal then no further data would be sent until
something new kicked the system into gear. If there is already data
waiting in the circular buffer we must re-enable the tx watermark so we
receive the expected interrupts.

Signed-off-by: default avatarRyan Case <ryandcase@chromium.org>
Reviewed-by: default avatarEvan Green <evgreen@chromium.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent eca686df
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