serial: sh-sci: Support for variable HSCIF hardware RX timeout

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HSCIF has facilities that allow changing the timeout after which an RX
interrupt is triggered even if the FIFO is not filled. This patch allows
changing the default (15 bits of silence) using the existing sysfs
attribute "rx_fifo_timeout".

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ulrich Hecht 2017-09-29 15:08:53 +02:00 • committed by Greg Kroah-Hartman

parent 62fadbd8f7

commit fa2abb0363

2 changed files with 40 additions and 15 deletions

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52

drivers/tty/serial/sh-sci.c

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3

drivers/tty/serial/sh-sci.h

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