Hardcoded FIFO size can cause hardware performance limitation.
Using real size value provides better FIFO usage.

Signed-off-by: Robert Baldyga <r.bald...@samsung.com>
---
 drivers/tty/serial/samsung.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 8808490..c622cf1 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -239,7 +239,7 @@ s3c24xx_serial_rx_chars(int irq, void *dev_id)
        struct uart_port *port = &ourport->port;
        unsigned int ufcon, ch, flag, ufstat, uerstat;
        unsigned long flags;
-       int max_count = 64;
+       int max_count = port->fifosize;
 
        spin_lock_irqsave(&port->lock, flags);
 
@@ -330,7 +330,7 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void 
*id)
        struct uart_port *port = &ourport->port;
        struct circ_buf *xmit = &port->state->xmit;
        unsigned long flags;
-       int count = 256;
+       int count = port->fifosize;
 
        spin_lock_irqsave(&port->lock, flags);
 
-- 
1.9.1

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