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serial: samsung: use port->fifosize instead of hardcoded values

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

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robert Baldyga 2014-11-24 07:56:24 +01:00 committed by Greg Kroah-Hartman
parent 2f1ba72d23
commit 57850a50c1
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/samsung.c
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@ -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);