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(parent: dedc64e) | patch
serial: imx: ensure that RX irqs are off if RX is off
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fri, 2 Mar 2018 10:07:26 +0000 (11:07 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 9 Mar 2018 18:21:01 +0000 (10:21 -0800)
commit76821e222c189b81d553b855ee7054340607eb46
treeb66c935f27e7efc45d8f939d84f3e34b97e41890tree | snapshot
parentdedc64e02f5da1c7bd0b4ec232341047a8b0142bcommit | diff
serial: imx: ensure that RX irqs are off if RX is off

Make sure that UCR1.RXDMAEN and UCR1.ATDMAEN (for the DMA case) and
UCR1.RRDYEN (for the PIO case) are off iff UCR1.RXEN is disabled. This
ensures that the fifo isn't read with RX disabled which results in an
exception.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/imx.c diff | blob | history
kernel
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