serial: sh-sci: Fix module clock refcount for serial console.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index e5cf57f482cf..1f89496d530e 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -78,8 +78,10 @@ struct sci_port {
         struct timer_list       break_timer;
         int                     break_flag;
 
+#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
         /* Port clock */
         struct clk              *clk;
+#endif
 };
 
 #ifdef CONFIG_SH_KGDB
@@ -958,7 +960,9 @@ static int sci_startup(struct uart_port *port)
         if (s->enable)
                 s->enable(port);
 
+#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
         s->clk = clk_get(NULL, "module_clk");
+#endif
 
         sci_request_irq(s);
         sci_start_tx(port);
@@ -978,8 +982,10 @@ static void sci_shutdown(struct uart_port *port)
         if (s->disable)
                 s->disable(port);
 
+#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
         clk_put(s->clk);
         s->clk = NULL;
+#endif
 }
 
 static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
@@ -1231,6 +1237,11 @@ static int __init serial_console_setup(struct console *co, char *options)
 
         port->type = serial_console_port->type;
 
+#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
+        if (!serial_console_port->clk)
+                serial_console_port->clk = clk_get(NULL, "module_clk");
+#endif
+
         if (port->flags & UPF_IOREMAP)
                 sci_config_port(port, 0);