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authorTomoya MORINAGA <tomoya.rohm@gmail.com>2012-04-02 14:36:22 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-22 15:38:59 -0700
commita10c8741cf87142f6eb835c0adac649ffa34767e (patch)
tree649e407d1602f2a43c80c2a170b5b686cab3e917
parent177b07ddae959f9454f4f4f1d14ab3365be58d84 (diff)
pch_uart: Fix MSI setting issue
commit 867c902e07d5677e2a5b54c0435e589513abde48 upstream. The following patch (MSI setting) is not enough. commit e463595fd9c752fa4bf06b47df93ef9ade3c7cf0 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/serial/pch_uart.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 17ae65762d1a..525951f9b6fa 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1586,6 +1586,7 @@ 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);