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can: at91_can: add listen only mode 

This patch adds listen only mode support to the at91_can driver.

Signed-off-by: Yoann DI-RUZZA <ydiruzza@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Yoann DI RUZZA 2014-02-11 09:46:59 +01:00 committed by Marc Kleine-Budde
parent b18ec27c65
commit 17a50ee4bd
1 changed files with 7 additions and 2 deletions
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9
drivers/net/can/at91_can.c
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@ -420,7 +420,11 @@ static void at91_chip_start(struct net_device *dev)
at91_transceiver_switch(priv, 1);
/* enable chip */
at91_write(priv, AT91_MR, AT91_MR_CANEN);
if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
reg_mr = AT91_MR_CANEN | AT91_MR_ABM;
else
reg_mr = AT91_MR_CANEN;
at91_write(priv, AT91_MR, reg_mr);
priv->can.state = CAN_STATE_ERROR_ACTIVE;
@ -1341,7 +1345,8 @@ static int at91_can_probe(struct platform_device *pdev)
priv->can.bittiming_const = &at91_bittiming_const;
priv->can.do_set_mode = at91_set_mode;
priv->can.do_get_berr_counter = at91_get_berr_counter;
priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
CAN_CTRLMODE_LISTENONLY;
priv->dev = dev;
priv->reg_base = addr;
priv->devtype_data = *devtype_data;