diff options
| author | Huang Shijie <b32955@freescale.com> | 2012-05-02 15:48:45 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-07-20 13:36:58 +0800 |
| commit | 1028fee6ef1f2dc137d563760f8ebf5cb024444f (patch) | |
| tree | cdb48f8bfde5c0e1e34272d16d085950b4f47411 /drivers/tty | |
| parent | e06bd223b1f5b8590cd5dcb741ba4c8b4a88c0f2 (diff) | |
ENGR00175578 serial/imx : disable the clock when the uart is not used
Disable the clock when the uart port is not used.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/imx.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index a2a33fb815ca..9a6e8b60223d 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -932,6 +932,8 @@ static int imx_startup(struct uart_port *port) unsigned long flags, temp; struct tty_struct *tty; + clk_enable(sport->clk); + #ifndef CONFIG_SERIAL_CORE_CONSOLE imx_setup_ufcr(sport, 0); #endif @@ -1162,6 +1164,7 @@ static void imx_shutdown(struct uart_port *port) writel(temp, sport->port.membase + UCR4); } spin_unlock_irqrestore(&sport->port.lock, flags); + clk_disable(sport->clk); } static void @@ -1708,6 +1711,7 @@ static int serial_imx_probe(struct platform_device *pdev) goto deinit; platform_set_drvdata(pdev, &sport->port); + clk_disable(sport->clk); return 0; deinit: if (pdata && pdata->exit) @@ -1737,8 +1741,6 @@ static int serial_imx_remove(struct platform_device *pdev) clk_put(sport->clk); } - clk_disable(sport->clk); - if (pdata && pdata->exit) pdata->exit(pdev); |