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serial: sh-sci: Use SCIF_DR instead of hardcoded literal 1 

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2015-08-21 20:02:28 +02:00 committed by Greg Kroah-Hartman
parent 5da0f46874
commit 54af5001e1
1 changed files with 2 additions and 1 deletions
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3
drivers/tty/serial/sh-sci.c
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@ -960,7 +960,8 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr)
}
serial_port_out(port, SCSCR, scr);
/* Clear current interrupt */
serial_port_out(port, SCxSR, ssr & ~(1 | SCxSR_RDxF(port)));
serial_port_out(port, SCxSR,
ssr & ~(SCIF_DR | SCxSR_RDxF(port)));
dev_dbg(port->dev, "Rx IRQ %lu: setup t-out in %u jiffies\n",
jiffies, s->rx_timeout);
mod_timer(&s->rx_timer, jiffies + s->rx_timeout);