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serial: auart: Use clk support 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2013-04-16 08:53:11 +02:00
parent 779caca4e6
commit aee8a91bed
1 changed files with 7 additions and 1 deletions
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8
drivers/serial/serial_auart.c
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@ -42,6 +42,8 @@
#include <io.h>
#include <malloc.h>
#include <notifier.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <mach/clock.h>
#include <mach/mxs.h>
@ -92,6 +94,7 @@ struct auart_priv {
int baudrate;
struct notifier_block notify;
void __iomem *base;
struct clk *clk;
};
static void auart_serial_putc(struct console_device *cdev, char c)
@ -143,7 +146,7 @@ static int auart_serial_setbaudrate(struct console_device *cdev, int new_baudrat
writel(0x0, priv->base + HW_UARTAPP_CTRL2);
/* Calculate and set baudrate */
quot = (imx_get_xclk() * 32) / new_baudrate;
quot = (clk_get_rate(priv->clk) * 32) / new_baudrate;
reg = BF_UARTAPP_LINECTRL_BAUD_DIVFRAC(quot & 0x3F) |
BF_UARTAPP_LINECTRL_BAUD_DIVINT(quot >> 6) |
BF_UARTAPP_LINECTRL_WLEN(3) |
@ -194,6 +197,9 @@ static int auart_serial_probe(struct device_d *dev)
dev->priv = priv;
priv->base = dev_request_mem_region(dev, 0);
priv->clk = clk_get(dev, NULL);
if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk);
auart_serial_init_port(priv);
auart_serial_setbaudrate(cdev, CONFIG_BAUDRATE);