SH: extend SCI DMA support to work on SCIFA ports

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SCIFA ports have additional bits to control DMA requests and they must have
respective interrupt sources enabled, as the datasheet suggests, the only way
to avoid actually taking interrupts in addition to DMA events is by masking the
IRQ on the CPU.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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Guennadi Liakhovetski 2010-03-19 13:53:04 +00:00 • committed by Paul Mundt

parent b2623a61cf

commit 3089f381fb

1 changed files with 81 additions and 33 deletions

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114

drivers/serial/sh-sci.c

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