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| author | Hui Wang <hui.wang@canonical.com> | 2022-04-18 17:43:39 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-22 16:37:00 +0200 |
| commit | 41c606879f89623dd5269eaffea640b915e9e17c (patch) | |
| tree | dcc746b1437783544df9bac3e0e82f2d13ab0123 /mm/ioremap.c | |
| parent | 48473802506d2d6151f59e0e764932b33b53cb3b (diff) | |
| download | linux-stable-41c606879f89623dd5269eaffea640b915e9e17c.tar.gz linux-stable-41c606879f89623dd5269eaffea640b915e9e17c.tar.bz2 linux-stable-41c606879f89623dd5269eaffea640b915e9e17c.zip | |
Revert "serial: sc16is7xx: Clear RS485 bits in the shutdown"
This reverts commit 927728a34f11b5a27f4610bdb7068317d6fdc72a.
Once the uart_port->rs485->flag is set to SER_RS485_ENABLED, the port
should always work in RS485 mode. If users want the port to leave
RS485 mode, they need to call ioctl() to clear SER_RS485_ENABLED.
So here we shouldn't clear the RS485 bits in the shutdown().
Fixes: 927728a34f11 ("serial: sc16is7xx: Clear RS485 bits in the shutdown")
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20220418094339.678144-1-hui.wang@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/ioremap.c')
0 files changed, 0 insertions, 0 deletions