Commit Graph

7 Commits

Author SHA1 Message Date
Luc Van Oostenryck
79b110bb0b can: sun4i: fix sun4ican_start_xmit()'s return type
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.

Fix this by returning 'netdev_tx_t' in this driver too.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27 10:40:16 +02:00
Gerhard Bertelsmann
4dcf924c2e can: sun4i: handle overrun in RX FIFO
SUN4Is CAN IP has a 64 byte deep FIFO buffer. If the buffer is not
drained fast enough (overrun) it's getting mangled. Already received
frames are dropped - the data can't be restored.

Signed-off-by: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2017-11-10 09:15:28 +01:00
Gerhard Bertelsmann
3a379f5b36 can: sun4i: fix loopback mode
Fix loopback mode by setting the right flag and remove presume mode.

Signed-off-by: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2017-10-24 12:59:15 +02:00
Oliver Hartkopp
a2ec19f888 can: remove obsolete assignment for CAN protocol error type
The assignment 'cf->data[2] |= CAN_ERR_PROT_UNSPEC' used at CAN error message
creation time is obsolete as CAN_ERR_PROT_UNSPEC is zero and cf->data[2] is
initialized with zero in alloc_can_err_skb() anyway.

So we could either assign 'cf->data[2] = CAN_ERR_PROT_UNSPEC' correctly or we
can remove the obsolete OR operation entirely.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-11-23 09:37:38 +01:00
Gerhard Bertelsmann
3c200db564 can: sun4i: fix MODULE_DESCRIPTION
This patch change description of the module.

Signed-off-by: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-10-13 17:42:34 +02:00
Gerhard Bertelsmann
887e07be3f can: sun4i: fix arbitration lost error reporting
This patch fixes a bug in arbitration error reporting

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-10-13 17:42:33 +02:00
Gerhard Bertelsmann
0738eff14d can: Allwinner A10/A20 CAN Controller support - Kernel module
Kernel module for Allwinner A10/A20 CAN controller.

Signed-off-by: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-09-17 22:39:08 +02:00