diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2011-03-24 02:34:32 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-27 23:35:00 -0700 |
| commit | ee6f0988a69b3a81bcea0871418ecf5db332149c (patch) | |
| tree | d21f294ba512ea20fbbee4ab02caa4f9a04bbedc /drivers/net/can | |
| parent | 53914b67993c724cec585863755c9ebc8446e83b (diff) | |
| download | blackbird-obmc-linux-ee6f0988a69b3a81bcea0871418ecf5db332149c.tar.gz blackbird-obmc-linux-ee6f0988a69b3a81bcea0871418ecf5db332149c.zip | |
can: c_can: disable one shot mode until driver is fixed
This patch disables the one shot mode, until the driver has been fixed and
tested to support it.
> I'm quite sure I've seen a situation where msg_obj 17 "seemed" to be
> pending, while msg_obj 18 and 19 already have been transmitted. But
> in that case, I enabled ONESHOT for the can interface, which enables
> the DA mode (automatic retransmission is disabled).
Reported-by: Jan Altenberg <jan@linutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/c_can/c_can.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 110eda01843c..d0bffb08aef5 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -588,14 +588,9 @@ static void c_can_chip_config(struct net_device *dev) { struct c_can_priv *priv = netdev_priv(dev); - if (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT) - /* disable automatic retransmission */ - priv->write_reg(priv, &priv->regs->control, - CONTROL_DISABLE_AR); - else - /* enable automatic retransmission */ - priv->write_reg(priv, &priv->regs->control, - CONTROL_ENABLE_AR); + /* enable automatic retransmission */ + priv->write_reg(priv, &priv->regs->control, + CONTROL_ENABLE_AR); if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY & CAN_CTRLMODE_LOOPBACK)) { @@ -1112,8 +1107,7 @@ struct net_device *alloc_c_can_dev(void) priv->can.bittiming_const = &c_can_bittiming_const; priv->can.do_set_mode = c_can_set_mode; priv->can.do_get_berr_counter = c_can_get_berr_counter; - priv->can.ctrlmode_supported = CAN_CTRLMODE_ONE_SHOT | - CAN_CTRLMODE_LOOPBACK | + priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK | CAN_CTRLMODE_LISTENONLY | CAN_CTRLMODE_BERR_REPORTING; |
