Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (26 commits)
  amba pl011: workaround for uart registers lockup
  n_gsm: fix the wrong FCS handling
  pch_uart: add missing comment about OKI ML7223
  pch_uart: Add MSI support
  tty: fix "IRQ45: nobody cared"
  PTI feature to allow user to name and mark masterchannel request.
  0 for o PTI Makefile bug.
  tty: serial: samsung.c remove legacy PM code.
  SERIAL: SC26xx: Fix link error.
  serial: mrst_max3110: initialize waitqueue earlier
  mrst_max3110: Change max missing message priority.
  tty: s5pv210: Add delay loop on fifo reset function for UART
  tty/serial: Fix XSCALE serial ports, e.g. ce4100
  serial: bfin_5xx: fix off-by-one with resource size
  drivers/tty: use printk_ratelimited() instead of printk_ratelimit()
  tty: n_gsm: Added refcount usage to gsm_mux and gsm_dlci structs
  tty: n_gsm: Add raw-ip support
  tty: n_gsm: expose gsmtty device nodes at ldisc open time
  pch_phub: Fix register miss-setting issue
  serial: 8250, increase PASS_LIMIT
  ...

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;