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can: ctucanfd: handle bus error interrupts

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Include REG_INT_STAT_BEI in the top-level error interrupt condition.

BEI is enabled when CAN_CTRLMODE_BERR_REPORTING is requested and
ctucan_err_interrupt() already handles it. Without checking and
clearing BEI in the top-level handler, bus error interrupts are not
handled or acknowledged.

Fixes: 2dcb8e8782 ("can: ctucanfd: add support for CTU CAN FD open-source IP core - bus independent part.")
Signed-off-by: Avi Weiss <thnkslprpt@gmail.com>
Acked-by: Pavel Pisa <pisa@fel.cvut.cz>
Link: https://patch.msgid.link/20260723074403.131575-1-thnkslprpt@gmail.com
Cc: stable@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Avi Weiss 2026-07-23 10:44:03 +03:00 committed by Marc Kleine-Budde
parent 4e735cbe3a
commit e74bae8995
1 changed files with 6 additions and 2 deletions
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8
drivers/net/can/ctucanfd/ctucanfd_base.c
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@ -1136,8 +1136,12 @@ static irqreturn_t ctucan_interrupt(int irq, void *dev_id)
/* Error interrupts */
if (FIELD_GET(REG_INT_STAT_EWLI, isr) ||
FIELD_GET(REG_INT_STAT_FCSI, isr) ||
FIELD_GET(REG_INT_STAT_ALI, isr)) {
icr = isr & (REG_INT_STAT_EWLI | REG_INT_STAT_FCSI | REG_INT_STAT_ALI);
FIELD_GET(REG_INT_STAT_ALI, isr) ||
FIELD_GET(REG_INT_STAT_BEI, isr)) {
icr = isr & (REG_INT_STAT_EWLI |
REG_INT_STAT_FCSI |
REG_INT_STAT_ALI |
REG_INT_STAT_BEI);
ctucan_netdev_dbg(ndev, "some ERR interrupt: clearing 0x%08x\n", icr);
ctucan_write32(priv, CTUCANFD_INT_STAT, icr);