diff options
| author | Paul Louvel <paul.louvel@bootlin.com> | 2026-07-08 12:15:20 +0200 |
|---|---|---|
| committer | Christophe Leroy (CS GROUP) <chleroy@kernel.org> | 2026-08-03 14:58:59 +0200 |
| commit | feaa9dc2a792e1d0766960368f911bc6b4feaa20 (patch) | |
| tree | e886f8d16c4aa088fbd6a176032195e0532df00e | |
| parent | 0887d5f68c9c3413acf4d1e083dd83f1be4205ee (diff) | |
soc: fsl: qe: Handle spurious interrupts
When no interrupt bits are set in the event register, call
handle_bad_irq() to account for the spurious interrupt before
exiting the cascade handler.
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-7-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
| -rw-r--r-- | drivers/soc/fsl/qe/qe_ports_ic.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/soc/fsl/qe/qe_ports_ic.c b/drivers/soc/fsl/qe/qe_ports_ic.c index bc8b68e5d1a9..29f4334db5a0 100644 --- a/drivers/soc/fsl/qe/qe_ports_ic.c +++ b/drivers/soc/fsl/qe/qe_ports_ic.c @@ -80,9 +80,15 @@ static void qepic_cascade(struct irq_desc *desc) chained_irq_enter(chip, desc); event = ioread32be(data->reg + CEPIER); + if (!event) { + handle_bad_irq(desc); + goto out; + } + for_each_set_bit(bit, &event, 32) generic_handle_domain_irq(data->host, 31 - bit); +out: chained_irq_exit(chip, desc); } |