[PATCH] serial/core: Initialize the console pm state

From: Sudhir Sreedharan
Date: Mon Sep 22 2014 - 02:31:12 EST

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;

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