serial: imx: call imx_dma_tx() again in dma_tx_callback

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Currently in dma_tx_callback(), no matter if there is still
remaining data pending in circle buffer or not, DMA transmit
will be terminated.

This will result in some data never get transmitted.
In order to fix this issue, call imx_dma_tx() again in
dma_tx_callback, when there is pending data and uart hasn't
been stopped.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Jiada Wang 2014-12-09 18:11:30 +09:00 • committed by Greg Kroah-Hartman

parent d64b8607ac

commit 0bbc9b81c1

1 changed files with 6 additions and 0 deletions

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drivers/tty/serial/imx.c

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