From a86713b1536c818972675e6dd8c6e738f0379f1d Mon Sep 17 00:00:00 2001 From: Sudhir Sreedharan Date: Mon, 22 Sep 2014 12:00:22 +0530 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/serial_core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index df3a8c74358e..e7d9d65095da 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -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; -- 2.39.2