diff options
Diffstat (limited to 'drivers/staging/vme')
| -rw-r--r-- | drivers/staging/vme/bridges/vme_ca91cx42.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c index 6aad34b8b3fe..5122c13a9563 100644 --- a/drivers/staging/vme/bridges/vme_ca91cx42.c +++ b/drivers/staging/vme/bridges/vme_ca91cx42.c @@ -256,6 +256,18 @@ static void ca91cx42_irq_exit(struct ca91cx42_driver *bridge, free_irq(pdev->irq, pdev); } +static int ca91cx42_iack_received(struct ca91cx42_driver *bridge, int level) +{ + u32 tmp; + + tmp = ioread32(bridge->base + LINT_STAT); + + if (tmp & (1 << level)) + return 0; + else + return 1; +} + /* * Set up an VME interrupt */ @@ -311,7 +323,8 @@ static int ca91cx42_irq_generate(struct vme_bridge *ca91cx42_bridge, int level, iowrite32(tmp, bridge->base + VINT_EN); /* Wait for IACK */ - wait_event_interruptible(bridge->iack_queue, 0); + wait_event_interruptible(bridge->iack_queue, + ca91cx42_iack_received(bridge, level)); /* Return interrupt to low state */ tmp = ioread32(bridge->base + VINT_EN); |