diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-09-22 12:35:09 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-09-27 10:25:52 +0200 |
| commit | 36b8f1e2dc8d0da4571788053af70f1f45d96ecf (patch) | |
| tree | 214a7e1304e8065a6a7b486480b97e60ed5742df /drivers/tty | |
| parent | clk: amba-clcd: convert to clk_prepare()/clk_unprepare() (diff) | |
| download | linux-36b8f1e2dc8d0da4571788053af70f1f45d96ecf.tar.xz linux-36b8f1e2dc8d0da4571788053af70f1f45d96ecf.zip | |
clk: amba-pl010: convert to clk_prepare()/clk_unprepare()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/amba-pl010.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c index c0d10c4ddb73..efdf92c3a352 100644 --- a/drivers/tty/serial/amba-pl010.c +++ b/drivers/tty/serial/amba-pl010.c @@ -312,12 +312,16 @@ static int pl010_startup(struct uart_port *port) struct uart_amba_port *uap = (struct uart_amba_port *)port; int retval; + retval = clk_prepare(uap->clk); + if (retval) + goto out; + /* * Try to enable the clock producer. */ retval = clk_enable(uap->clk); if (retval) - goto out; + goto clk_unprep; uap->port.uartclk = clk_get_rate(uap->clk); @@ -343,6 +347,8 @@ static int pl010_startup(struct uart_port *port) clk_dis: clk_disable(uap->clk); + clk_unprep: + clk_unprepare(uap->clk); out: return retval; } @@ -370,6 +376,7 @@ static void pl010_shutdown(struct uart_port *port) * Shut down the clock producer */ clk_disable(uap->clk); + clk_unprepare(uap->clk); } static void @@ -626,6 +633,7 @@ static int __init pl010_console_setup(struct console *co, char *options) int bits = 8; int parity = 'n'; int flow = 'n'; + int ret; /* * Check whether an invalid uart number has been specified, and @@ -638,6 +646,10 @@ static int __init pl010_console_setup(struct console *co, char *options) if (!uap) return -ENODEV; + ret = clk_prepare(uap->clk); + if (ret) + return ret; + uap->port.uartclk = clk_get_rate(uap->clk); if (options) |