pch_uart: Add MSI support

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

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index ae28250b0be0ee15be5df8b1633d1522760f640c..35cb9af893babe8e76096a9fc525c5e4710b6426 100644 (file)
--- 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;