serial: 8250: 8250_omap: Account for data in flight during DMA teardown

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Take into account data stuck in DMA internal buffers before pushing data
to higher layer. dma_tx_state has "in_flight_bytes" member that provides
this information.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20200319110344.21348-3-vigneshr@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Vignesh Raghavendra 2020-03-19 16:33:40 +05:30 • committed by Greg Kroah-Hartman

parent 7cf4df30a9

commit 4bcf59a5de

1 changed files with 23 additions and 4 deletions

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drivers/tty/serial/8250/8250_omap.c

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