diff options
| author | Huang Shijie <b32955@freescale.com> | 2012-05-09 11:36:29 +0800 |
|---|---|---|
| committer | Xinyu Chen <xinyu.chen@freescale.com> | 2012-05-21 15:11:24 +0800 |
| commit | 5978ebd2aaf42600253caffa392d53c74e9e8f2e (patch) | |
| tree | e00c28decad6118b4687c2bef635fc30b44fb090 | |
| parent | c3faf51d80911d8b4e2a27d95fe58b9f3ce30817 (diff) | |
ENGR00182346-1 serial/imx : disable the clock when the uart is not used
This patch is just the re-revert of the commit:ENGR00182048
Disable the clock when the uart port is not used.
Signed-off-by: Huang Shijie <b32955@freescale.com>
| -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 d65c589cef60..781e11f5cf34 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -934,6 +934,8 @@ 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 @@ -1164,6 +1166,7 @@ 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 @@ -1701,6 +1704,7 @@ 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) @@ -1730,8 +1734,6 @@ static int serial_imx_remove(struct platform_device *pdev) clk_put(sport->clk); } - clk_disable(sport->clk); - if (pdata && pdata->exit) pdata->exit(pdev); |