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path: root/drivers/tty/serial/pch_uart.c
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Diffstat (limited to 'drivers/tty/serial/pch_uart.c')
-rw-r--r--drivers/tty/serial/pch_uart.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 46521093089..846dfcd3ce0 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -14,6 +14,7 @@
*along with this program; if not, write to the Free Software
*Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <linux/kernel.h>
#include <linux/serial_reg.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -44,6 +45,7 @@ enum {
/* Set the max number of UART port
* Intel EG20T PCH: 4 port
* OKI SEMICONDUCTOR ML7213 IOH: 3 port
+ * OKI SEMICONDUCTOR ML7223 IOH: 2 port
*/
#define PCH_UART_NR 4
@@ -137,8 +139,6 @@ enum {
#define PCH_UART_DLL 0x00
#define PCH_UART_DLM 0x01
-#define DIV_ROUND(a, b) (((a) + ((b)/2)) / (b))
-
#define PCH_UART_IID_RLS (PCH_UART_IIR_REI)
#define PCH_UART_IID_RDR (PCH_UART_IIR_RRI)
#define PCH_UART_IID_RDR_TO (PCH_UART_IIR_RRI | PCH_UART_IIR_TOI)
@@ -316,7 +316,7 @@ static int pch_uart_hal_set_line(struct eg20t_port *priv, int baud,
unsigned int dll, dlm, lcr;
int div;
- div = DIV_ROUND(priv->base_baud / 16, baud);
+ div = DIV_ROUND_CLOSEST(priv->base_baud / 16, baud);
if (div < 0 || USHRT_MAX <= div) {
dev_err(priv->port.dev, "Invalid Baud(div=0x%x)\n", div);
return -EINVAL;
@@ -1429,6 +1429,8 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
goto init_port_hal_free;
}
+ pci_enable_msi(pdev);
+
iobase = pci_resource_start(pdev, 0);
mapbase = pci_resource_start(pdev, 1);
priv->mapbase = mapbase;
@@ -1485,6 +1487,8 @@ static void pch_uart_pci_remove(struct pci_dev *pdev)
struct eg20t_port *priv;
priv = (struct eg20t_port *)pci_get_drvdata(pdev);
+
+ pci_disable_msi(pdev);
pch_uart_exit_port(priv);
pci_disable_device(pdev);
kfree(priv);
@@ -1568,6 +1572,7 @@ static int __devinit pch_uart_pci_probe(struct pci_dev *pdev,
return ret;
probe_disable_device:
+ pci_disable_msi(pdev);
pci_disable_device(pdev);
probe_error:
return ret;