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can: flexcan: Disable error interrupt when bus error reporting is disabled 

In case we don't have FLEXCAN_HAS_BROKEN_ERR_STATE and the user set
CAN_CTRLMODE_BERR_REPORTING once it can not be unset again until reboot.
So in case neither hardware nor user wants the error interrupt disable
the bit.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Alexander Stein 2014-08-12 10:47:21 +02:00 committed by Marc Kleine-Budde
parent 37b75a3aa8
commit bc03a54139
1 changed files with 2 additions and 0 deletions
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2
drivers/net/can/flexcan.c
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@ -852,6 +852,8 @@ static int flexcan_chip_start(struct net_device *dev)
if (priv->devtype_data->features & FLEXCAN_HAS_BROKEN_ERR_STATE || if (priv->devtype_data->features & FLEXCAN_HAS_BROKEN_ERR_STATE ||
priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
reg_ctrl |= FLEXCAN_CTRL_ERR_MSK; reg_ctrl |= FLEXCAN_CTRL_ERR_MSK;
else
reg_ctrl &= ~FLEXCAN_CTRL_ERR_MSK;
/* save for later use */ /* save for later use */
priv->reg_ctrl_default = reg_ctrl; priv->reg_ctrl_default = reg_ctrl;