diff options
| author | NeilBrown <neilb@suse.de> | 2011-11-27 07:17:41 +1100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-12-20 18:53:25 +0100 |
| commit | 286f8f3cd615177d5d0f8af8059a3fa39f51fa97 (patch) | |
| tree | 13420240fc5b4a9acb78272e328f5653daab30a5 | |
| parent | 8f6a459a9daa6ce76d7c192f2cb3047fffb45ec8 (diff) | |
mfd: Base interrupt for twl4030-irq must be one-shot
As the interrupt source is only cleared by the threaded interrupt
service routine, we need to make the base interrupt IRQF_ONESHOT.
Without this, the first interrupt from the TWL4030 cause the CPU to
enter an infinite loop trying to handle to interrupt but never
clearing it.
Signed-off-by: NeilBrown <neilb@suse.de>
Tested-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mfd/twl4030-irq.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index f062c8cc6c3..3d3d6ed48f8 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -733,8 +733,9 @@ int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) } /* install an irq handler to demultiplex the TWL4030 interrupt */ - status = request_threaded_irq(irq_num, NULL, handle_twl4030_pih, 0, - "TWL4030-PIH", NULL); + status = request_threaded_irq(irq_num, NULL, handle_twl4030_pih, + IRQF_ONESHOT, + "TWL4030-PIH", NULL); if (status < 0) { pr_err("twl4030: could not claim irq%d: %d\n", irq_num, status); goto fail_rqirq; |