serial: also set the uartclk value in resume after goes to highspeed
authorYin Kangkai <kangkai.yin@linux.intel.com>
Wed, 9 Feb 2011 03:34:20 +0000 (11:34 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 17 Feb 2011 19:23:49 +0000 (11:23 -0800)
commit95926d2db6256e08d06b753752a0d903a0580acc
treec1ac11f747459546100af15ff1ed7bc2a6ea3876
parent8115be01462f8af2dc22dd65dd28268bb9b8bff6
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>
drivers/tty/serial/8250.c