I have observed some Spurious IRQ's for I2C1 when all kernel hacking options
(and thus LOCKDEP) are disabled.
Applying Richard Woodruff's 'I2C bug fixes for L-O and L-Z' seems to help
but IRQF_DISABLED is needed for proper behaviour.
Signed-off-by: Ari Kauppi <Ext-Ari.Kauppi@xxxxxxxxx>
---
drivers/i2c/busses/i2c-omap.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 0c3ed41..18af43f 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -847,7 +847,7 @@ omap_i2c_probe(struct platform_device *pdev)
omap_i2c_init(dev);
isr = (dev->rev < OMAP_I2C_REV_2) ? omap_i2c_rev1_isr : omap_i2c_isr;
- r = request_irq(dev->irq, isr, 0, pdev->name, dev);
+ r = request_irq(dev->irq, isr, IRQF_DISABLED, pdev->name, dev);
if (r) {
dev_err(dev->dev, "failure requesting irq %i\n", dev->irq);
--
1.5.6.5
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