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pch_uart: Fix MSI setting issue 

The following patch (MSI setting) is not enough.

commit e463595fd9
Author: Alexander Stein <alexander.stein@systec-electronic.com>
Date:   Mon Jul 4 08:58:31 2011 +0200

    pch_uart: Add MSI support

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

To enable MSI mode, PCI bus-mastering must be enabled.
This patch enables the setting.

cc: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomoya MORINAGA 2012-04-02 14:36:22 +09:00 committed by Greg Kroah-Hartman
parent bc02d15a34
commit 867c902e07
1 changed files with 1 additions and 0 deletions
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1
drivers/tty/serial/pch_uart.c
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@ -1655,6 +1655,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
}
pci_enable_msi(pdev);
pci_set_master(pdev);
iobase = pci_resource_start(pdev, 0);
mapbase = pci_resource_start(pdev, 1);