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| author | ZHU Yi (ST-FIR/ENG1-Zhu) <Yi.Zhu5@cn.bosch.com> | 2017-09-15 08:59:15 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2017-10-19 13:05:53 +0200 |
| commit | ad2302345d59d29232cb668baaae9e840925d153 (patch) | |
| tree | 997cbacc08320845055fb53cf267f3bbfd135fcd /drivers/net/can/flexcan.c | |
| parent | bpf: disallow arithmetic operations on context pointer (diff) | |
| download | linux-ad2302345d59d29232cb668baaae9e840925d153.tar.xz linux-ad2302345d59d29232cb668baaae9e840925d153.zip | |
can: flexcan: fix state transition regression
Update state upon any interrupt to report correct state transitions in
case the flexcan core enabled the broken error state quirk fix.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/flexcan.c')
| -rw-r--r-- | drivers/net/can/flexcan.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 13f0f219d8aa..df4bfb83024c 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -765,8 +765,9 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id) flexcan_write(reg_esr & FLEXCAN_ESR_ALL_INT, ®s->esr); } - /* state change interrupt */ - if (reg_esr & FLEXCAN_ESR_ERR_STATE) + /* state change interrupt or broken error state quirk fix is enabled */ + if ((reg_esr & FLEXCAN_ESR_ERR_STATE) || + (priv->devtype_data->quirks & FLEXCAN_QUIRK_BROKEN_ERR_STATE)) flexcan_irq_state(dev, reg_esr); /* bus error IRQ - handle if bus error reporting is activated */ |