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path: root/drivers/tty/serial/pch_uart.c
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Diffstat (limited to 'drivers/tty/serial/pch_uart.c')
-rw-r--r--drivers/tty/serial/pch_uart.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index ea4ffc2ebb2f..23672f8a343e 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -31,6 +31,7 @@
#include <linux/dmi.h>
#include <linux/nmi.h>
#include <linux/delay.h>
+#include <linux/of.h>
#include <linux/debugfs.h>
#include <linux/dmaengine.h>
@@ -1826,6 +1827,10 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
priv->trigger_level = 1;
priv->fcr = 0;
+ if (pdev->dev.of_node)
+ of_property_read_u32(pdev->dev.of_node, "clock-frequency"
+ , &user_uartclk);
+
#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
pch_uart_ports[board->line_no] = priv;
#endif