Commit 85878399 authored May 23, 2014 by Huang Shijie Committed by Greg Kroah-Hartman May 28, 2014

serial: imx: disable the receiver ready interrupt for imx_stop_rx



This patch disables the receiver ready interrupt for imx_stop_rx.
It reduces the interrupt numbers when the uart is going to close
or suspend.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent e2f27866

drivers/tty/serial/imx.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -439,6 +439,10 @@ static void imx_stop_rx(struct uart_port *port)

		temp = readl(sport->port.membase + UCR2);
		writel(temp & ~UCR2_RXEN, sport->port.membase + UCR2);

		/* disable the `Receiver Ready Interrrupt` */
		temp = readl(sport->port.membase + UCR1);
		writel(temp & ~UCR1_RRDYEN, sport->port.membase + UCR1);
		}

		/*