commit: 95926d2db6256e08d06b753752a0d903a0580acc From: Yin Kangkai <[email protected]> Date: Wed, 9 Feb 2011 11:34:20 +0800 Subject: [PATCH] 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 <[email protected]> CC: David Woodhouse <[email protected]> CC: [email protected] CC: [email protected] Signed-off-by: Yin Kangkai <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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 3975df6..c10a6a9 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); } _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
