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@xxxxxxxxxx> --- drivers/tty/serial/serial_core.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 29a7be4..91bfd52 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -2615,6 +2615,9 @@ 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; -- 1.7.0.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
