serial: mxs-auart: convert to clk_prepare/clk_unprepare

The patch converts mxs-auart driver to clk_prepare/clk_unprepare by
using helper functions clk_prepare_enable/clk_disable_unprepare.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Alan Cox <alan@linux.intel.com>

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 7e02c9c344fee3496814ebc8b55bbe21280f618b..c33500a5e0328c5979dd44fcfefb63312dc4a357 100644 (file)
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -424,7 +424,7 @@ static int mxs_auart_startup(struct uart_port *u)
 {
        struct mxs_auart_port *s = to_auart_port(u);
 
-       clk_enable(s->clk);
+       clk_prepare_enable(s->clk);
 
        writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_CLR);
 
@@ -453,7 +453,7 @@ static void mxs_auart_shutdown(struct uart_port *u)
        writel(AUART_INTR_RXIEN | AUART_INTR_RTIEN | AUART_INTR_CTSMIEN,
                        u->membase + AUART_INTR_CLR);
 
-       clk_disable(s->clk);
+       clk_disable_unprepare(s->clk);
 }
 
 static unsigned int mxs_auart_tx_empty(struct uart_port *u)
@@ -634,7 +634,7 @@ auart_console_setup(struct console *co, char *options)
        if (!s)
                return -ENODEV;
 
-       clk_enable(s->clk);
+       clk_prepare_enable(s->clk);
 
        if (options)
                uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -643,7 +643,7 @@ auart_console_setup(struct console *co, char *options)
 
        ret = uart_set_options(&s->port, co, baud, parity, bits, flow);
 
-       clk_disable(s->clk);
+       clk_disable_unprepare(s->clk);
 
        return ret;
 }