pch_uart: Add MSI support

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index ae28250b0be0..35cb9af893ba 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1426,6 +1426,8 @@ 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;
@@ -1482,6 +1484,8 @@ 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);
@@ -1565,6 +1569,7 @@ 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;