1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 75085795528e..61b7fd2729cd 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1710,6 +1710,8 @@ static int sci_startup(struct uart_port *port)
 
         dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
 
+        pm_runtime_put_noidle(port->dev);
+
         sci_port_enable(s);
 
         ret = sci_request_irq(s);
@@ -1737,6 +1739,8 @@ static void sci_shutdown(struct uart_port *port)
         sci_free_irq(s);
 
         sci_port_disable(s);
+
+        pm_runtime_get_noresume(port->dev);
 }
 
 static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
@@ -2075,6 +2079,7 @@ static int __devinit sci_init_single(struct platform_device *dev,
                 sci_init_gpios(sci_port);
 
                 pm_runtime_irq_safe(&dev->dev);
+                pm_runtime_get_noresume(&dev->dev);
                 pm_runtime_enable(&dev->dev);
         }