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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-08-05 11:57:01 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 12:43:51 +0200 |
| commit | 6798e901ab237ae51a3d192d571ec1e462e962b5 (patch) | |
| tree | 6546f751105246d01130795a80020a5ef2ec21fd /samples | |
| parent | f7ec1721b38c82089b1bbd92f828cb615557cbc5 (diff) | |
| download | linux-6798e901ab237ae51a3d192d571ec1e462e962b5.tar.bz2 | |
tty: serial: fsl_lpuart: Ignore TX/RX interrupts if DMA is enabled
In a mixed DMA/IRQ use-case (e.g.: DMA for TX, IRQ for RX), interrupt
handler might try to handle Rx/Tx condition it shouldn't. Change the
code to only handle TX/RX event if corresponding path isn't being
handled by DMA.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-imx@nxp.com
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20190805185701.22863-7-andrew.smirnov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions