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| author | Dimitris Lampridis <dlampridis@logikonlabs.com> | 2014-03-13 15:11:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-17 16:23:07 -0700 |
| commit | cab53dc9e20f74fbd4776ea584ba3b21c957b1a8 (patch) | |
| tree | 2779cee8bbdd970bbafaa7d979b8e3eb7488e889 /Documentation/VGA-softcursor.txt | |
| parent | 9b971cd206c019fc6aeeb7e04136a49f9312df4a (diff) | |
| download | linux-cab53dc9e20f74fbd4776ea584ba3b21c957b1a8.tar.bz2 | |
tty/serial: omap: fix RX interrupt enable/disable in half-duplex TX
Make sure that serial_omap_stop_rx() also disables RDI (Receiver Data Interrupt),
otherwise the interrupt handler will call serial_omap_rdi() to read the new data,
resulting in the transmission being echoed back.
When the half-duplex transmission is complete, in order to reverse the effects of
serial_omap_stop_rx(), we should re-enable:
* the RX interrupts _without_ overwriting up->ier
* the UART_LSR_DR bit of the up->port.read_status_mask
Signed-off-by: Dimitris Lampridis <dlampridis@logikonlabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/VGA-softcursor.txt')
0 files changed, 0 insertions, 0 deletions