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| author | Yin Kangkai <kangkai.yin@linux.intel.com> | 2011-02-09 11:34:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 11:23:49 -0800 |
| commit | 95926d2db6256e08d06b753752a0d903a0580acc (patch) | |
| tree | c1ac11f747459546100af15ff1ed7bc2a6ea3876 /drivers/tty | |
| parent | 8115be01462f8af2dc22dd65dd28268bb9b8bff6 (diff) | |
| download | linux-stable-95926d2db6256e08d06b753752a0d903a0580acc.tar.gz linux-stable-95926d2db6256e08d06b753752a0d903a0580acc.tar.bz2 linux-stable-95926d2db6256e08d06b753752a0d903a0580acc.zip | |
serial: also set the uartclk value in resume after goes to highspeed
For any reason if the NS16550A was not work in high speed mode (e.g. we hold
NS16550A from going to high speed mode in autoconfig_16550a()), now we are
resume from suspend, we should also set the uartclk to the correct
value. Otherwise it is still the old 1843200 and that will bring issues.
CC: Greg Kroah-Hartman <greg@kroah.com>
CC: David Woodhouse <dwmw2@infradead.org>
CC: linux-kernel@vger.kernel.org
CC: stable@kernel.org
Signed-off-by: Yin Kangkai <kangkai.yin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c index 3975df6f7fdb..c10a6a909c76 100644 --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -3036,6 +3036,7 @@ void serial8250_resume_port(int line) serial_outp(up, 0x04, tmp); serial_outp(up, UART_LCR, 0); + up->port.uartclk = 921600*16; } uart_resume_port(&serial8250_reg, &up->port); } |