From a3882b7814fb3a5b7ea211e421451b1c4685f8f9 Mon Sep 17 00:00:00 2001 From: Samuel Iglesias Gonsalvez Date: Mon, 10 Dec 2012 11:50:03 +0100 Subject: [PATCH] ipack/devices/ipoctal: avoid re-enable RX two times. RX is enabled when the tty port is open, so no need to do it in initialization time: it can allow the device to receive characters but no TTY client is listening to them. It produced an infinite number of IRQ as RxFIFO is not read to clear that IRQ in the device, so it is still pending. Signed-off-by: Samuel Iglesias Gonsalvez Signed-off-by: Greg Kroah-Hartman --- drivers/ipack/devices/ipoctal.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index f2875f0..09e3a8e 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -60,6 +60,10 @@ static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty) channel = dev_get_drvdata(tty->dev); + /* + * Enable RX. TX will be enabled when + * there is something to send + */ iowrite8(CR_ENABLE_RX, &channel->regs->w.cr); return 0; } @@ -385,12 +389,6 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr, continue; } dev_set_drvdata(tty_dev, channel); - - /* - * Enable again the RX. TX will be enabled when - * there is something to send - */ - iowrite8(CR_ENABLE_RX, &channel->regs->w.cr); } return 0; -- 2.7.4