serial: imx: Also enable the aging timer in PIO mode

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This allows to increase the RX waterlevel which allows to delay the RRDY
irq. The desired effect is that less irqs are needed to handle
characters and so reduce irq count of the system.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Uwe Kleine-König 2018-03-02 11:07:27 +01:00 • committed by Greg Kroah-Hartman

parent 76821e222c

commit 81ca8e8286

1 changed files with 12 additions and 3 deletions

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15

drivers/tty/serial/imx.c

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