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path: root/drivers/net/can
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Diffstat (limited to 'drivers/net/can')
-rw-r--r--drivers/net/can/sja1000/sja1000.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 45400d9..d169215 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -141,6 +141,7 @@ static void set_normal_mode(struct net_device *dev)
{
struct sja1000_priv *priv = netdev_priv(dev);
unsigned char status = priv->read_reg(priv, SJA1000_MOD);
+ u8 mod_reg_val = 0x00;
int i;
for (i = 0; i < 100; i++) {
@@ -158,9 +159,10 @@ static void set_normal_mode(struct net_device *dev)
/* set chip to normal mode */
if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
- priv->write_reg(priv, SJA1000_MOD, MOD_LOM);
- else
- priv->write_reg(priv, SJA1000_MOD, 0x00);
+ mod_reg_val |= MOD_LOM;
+ if (priv->can.ctrlmode & CAN_CTRLMODE_PRESUME_ACK)
+ mod_reg_val |= MOD_STM;
+ priv->write_reg(priv, SJA1000_MOD, mod_reg_val);
udelay(10);
@@ -632,7 +634,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv)
CAN_CTRLMODE_LISTENONLY |
CAN_CTRLMODE_3_SAMPLES |
CAN_CTRLMODE_ONE_SHOT |
- CAN_CTRLMODE_BERR_REPORTING;
+ CAN_CTRLMODE_BERR_REPORTING |
+ CAN_CTRLMODE_PRESUME_ACK;
spin_lock_init(&priv->cmdreg_lock);