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serial/core: Initialize the console pm state 

For console devices having UART_CAP_SLEEP capability, the uart_pm_state has
to be initialized to UART_PM_STATE_ON. Otherwise the LCR regiser values
are reinitialized when uart_change_pm is called from uart_configure_port.

Signed-off-by: Sudhir Sreedharan <ssreedharan@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudhir Sreedharan 2014-09-22 12:00:22 +05:30 committed by Greg Kroah-Hartman
parent daea65a7be
commit a86713b153
1 changed files with 3 additions and 0 deletions
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3
drivers/tty/serial/serial_core.c
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@ -2606,6 +2606,9 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport)
if (uport->cons && uport->dev)
of_console_check(uport->dev->of_node, uport->cons->name, uport->line);
if (uart_console(uport))
state->pm_state = UART_PM_STATE_ON;
uart_configure_port(drv, state, uport);
num_groups = 2;