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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>
This commit is contained in:
Shawn Guo 2011-12-20 14:10:29 +08:00
parent e735489976
commit a481377013
1 changed files with 4 additions and 4 deletions
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8
drivers/tty/serial/mxs-auart.c
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@ -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;
}