diff options
| author | Huang Shijie <b32955@freescale.com> | 2012-05-02 15:48:45 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2012-06-07 12:37:58 -0500 |
| commit | 6ca84c532be3be8c1f7c0cab03c62004c102fc51 (patch) | |
| tree | be4adae85845ada77ec55737363f4698fd0b1c7a /drivers | |
| parent | cd47338f98d9a6e779ae54824e33d05a96463b0e (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')
| -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 4cb727056a55..f376458ae3bc 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); |