diff options
author | Stephane Grosjean <s.grosjean@peak-system.com> | 2021-10-21 11:15:04 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:16:03 +0300 |
commit | dac06227e1a3869800dd3618aaa068d5d777931c (patch) | |
tree | 2c930d26a37229e4c044886ce0b0cf36eb2063a1 /drivers/net/can | |
parent | df093c18bdb194ad3a1865644d54c98b1fe7c8e0 (diff) | |
download | linux-dac06227e1a3869800dd3618aaa068d5d777931c.tar.xz |
can: peak_usb: always ask for BERR reporting for PCAN-USB devices
commit 3f1c7aa28498e52a5e6aa2f1b89bf35c63352cfd upstream.
Since for the PCAN-USB, the management of the transition to the
ERROR_WARNING or ERROR_PASSIVE state is done according to the error
counters, these must be requested unconditionally.
Link: https://lore.kernel.org/all/20211021081505.18223-2-s.grosjean@peak-system.com
Fixes: c11dcee75830 ("can: peak_usb: pcan_usb_decode_error(): upgrade handling of bus state changes")
Cc: stable@vger.kernel.org
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/can')
-rw-r--r-- | drivers/net/can/usb/peak_usb/pcan_usb.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c index 837b3fecd71e..af8d3dadbbb8 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb.c @@ -841,14 +841,14 @@ static int pcan_usb_start(struct peak_usb_device *dev) pdev->bec.rxerr = 0; pdev->bec.txerr = 0; - /* be notified on error counter changes (if requested by user) */ - if (dev->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) { - err = pcan_usb_set_err_frame(dev, PCAN_USB_BERR_MASK); - if (err) - netdev_warn(dev->netdev, - "Asking for BERR reporting error %u\n", - err); - } + /* always ask the device for BERR reporting, to be able to switch from + * WARNING to PASSIVE state + */ + err = pcan_usb_set_err_frame(dev, PCAN_USB_BERR_MASK); + if (err) + netdev_warn(dev->netdev, + "Asking for BERR reporting error %u\n", + err); /* if revision greater than 3, can put silent mode on/off */ if (dev->device_rev > 3) { @@ -986,7 +986,6 @@ const struct peak_usb_adapter pcan_usb = { .device_id = PCAN_USB_PRODUCT_ID, .ctrl_count = 1, .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES | CAN_CTRLMODE_LISTENONLY | - CAN_CTRLMODE_BERR_REPORTING | CAN_CTRLMODE_CC_LEN8_DLC, .clock = { .freq = PCAN_USB_CRYSTAL_HZ / 2, |