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| author | Jan Altenberg <jan@linutronix.de> | 2011-03-21 18:19:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-21 18:19:26 -0700 |
| commit | 4f2d56c45fec7c15169599cab05e9f6df18769d0 (patch) | |
| tree | e6ef8a3050e4a893e9e58c789dfe9289867ee9aa /drivers/net/can/c_can/c_can.c | |
| parent | b20e7bbfc7a15a4182730f0936433145992b4b06 (diff) | |
| download | kernel_samsung_smdk4412-4f2d56c45fec7c15169599cab05e9f6df18769d0.zip kernel_samsung_smdk4412-4f2d56c45fec7c15169599cab05e9f6df18769d0.tar.gz kernel_samsung_smdk4412-4f2d56c45fec7c15169599cab05e9f6df18769d0.tar.bz2 | |
can: c_can: Do basic c_can configuration _before_ enabling the interrupts
I ran into some trouble while testing the SocketCAN driver for the BOSCH
C_CAN controller. The interface is not correctly initialized, if I put
some CAN traffic on the line, _while_ the interface is being started
(which means: the interface doesn't come up correcty, if there's some RX
traffic while doing 'ifconfig can0 up').
The current implementation enables the controller interrupts _before_
doing the basic c_can configuration. I think, this should be done the
other way round.
The patch below fixes things for me.
Signed-off-by: Jan Altenberg <jan@linutronix.de>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can/c_can/c_can.c')
| -rw-r--r-- | drivers/net/can/c_can/c_can.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 1405078..110eda0 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -633,9 +633,6 @@ static void c_can_start(struct net_device *dev) { struct c_can_priv *priv = netdev_priv(dev); - /* enable status change, error and module interrupts */ - c_can_enable_all_interrupts(priv, ENABLE_ALL_INTERRUPTS); - /* basic c_can configuration */ c_can_chip_config(dev); @@ -643,6 +640,9 @@ static void c_can_start(struct net_device *dev) /* reset tx helper pointers */ priv->tx_next = priv->tx_echo = 0; + + /* enable status change, error and module interrupts */ + c_can_enable_all_interrupts(priv, ENABLE_ALL_INTERRUPTS); } static void c_can_stop(struct net_device *dev) |