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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-22 13:42:19 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-22 13:42:19 -0800
commit4fbd269f1f9f8020dd9474b60e55c4f34d267b08 (patch)
tree61f6b7e35ea8f427f0c2c5c6e5f5e3244c311818 /drivers/tty/serial/pch_uart.c
parent8bc661bfc0c2d221e209f4205bdaaf574d50100c (diff)
parent39669f3ae1d8a82d407a00e9e0058050997328da (diff)
downloadop-kernel-dev-4fbd269f1f9f8020dd9474b60e55c4f34d267b08.zip
op-kernel-dev-4fbd269f1f9f8020dd9474b60e55c4f34d267b08.tar.gz
Merge branch 'fixes' into tty-next
This was a "forgotten" branch of tty fixes that somehow didn't make it into my "main" branches, my fault. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/pch_uart.c')
-rw-r--r--drivers/tty/serial/pch_uart.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 9cbd3ac..8fa1134 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1508,10 +1508,14 @@ static int pch_uart_verify_port(struct uart_port *port,
__func__);
return -EOPNOTSUPP;
#endif
- dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n");
- if (!priv->use_dma)
+ if (!priv->use_dma) {
pch_request_dma(port);
- priv->use_dma = 1;
+ if (priv->chan_rx)
+ priv->use_dma = 1;
+ }
+ dev_info(priv->port.dev, "PCH UART: %s\n",
+ priv->use_dma ?
+ "Use DMA Mode" : "No DMA");
}
return 0;
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