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Commit 1534a3b3 authored by dmitry pervushin's avatar dmitry pervushin Committed by Paul Mundt
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serial: sh-sci: Fix module clock refcounting. 



This adds the enable/disable hooks for the port clock to sh-sci.

Signed-off-by: default avatardmitry pervushin <dimka@nomadgs.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 1929cb34

drivers/serial/sh-sci.c

+9 −3
Original line number Diff line number Diff line
@@ -77,6 +77,9 @@ struct sci_port { 
	/* Break timer */

	struct timer_list	break_timer;

	int			break_flag;



	/* Port clock */

	struct clk		*clk;

};



#ifdef CONFIG_SH_KGDB
@@ -955,6 +958,8 @@ static int sci_startup(struct uart_port *port) 
	if (s->enable)

		s->enable(port);



	s->clk = clk_get(NULL, "module_clk");



	sci_request_irq(s);

	sci_start_tx(port);

	sci_start_rx(port, 1);
@@ -972,6 +977,9 @@ static void sci_shutdown(struct uart_port *port) 


	if (s->disable)

		s->disable(port);



	clk_put(s->clk);

	s->clk = NULL;

}



static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
@@ -990,9 +998,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, 
		default:

		{

#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)

			struct clk *clk = clk_get(NULL, "module_clk");

			t = SCBRR_VALUE(baud, clk_get_rate(clk));

			clk_put(clk);

			t = SCBRR_VALUE(baud, clk_get_rate(s->clk));

#else

			t = SCBRR_VALUE(baud);

#endif