diff options
| author |   Alexander Aring <alex.aring@gmail.com> | 2015-08-27 21:49:20 +0200 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2015-09-17 13:20:05 +0200 |
| commit | 5c3c4736370961a121994cffd87f4dddc95ea8f2 (patch) | |
| tree | 6803bffa79b4fb27b3d13ba507a50d03370bfc91 /drivers/net/ieee802154 | |
| parent | at86rf230: add debugfs support (diff) | |
| download | linux-dev-5c3c4736370961a121994cffd87f4dddc95ea8f2.tar.xz linux-dev-5c3c4736370961a121994cffd87f4dddc95ea8f2.zip | |
at86rf230: detailed edge triggered irq warning
This patch introduce a more detailed information why edge triggered
irq's are currently not recommended. It could be that rising/falling
edge detection can happen while the irq is disabled.
Suggested-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index 19c16b97659c..b8b0628dc2f3 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -1376,7 +1376,7 @@ static int at86rf230_hw_init(struct at86rf230_local *lp, u8 xtal_trim) if (irq_type == IRQ_TYPE_EDGE_RISING || irq_type == IRQ_TYPE_EDGE_FALLING) dev_warn(&lp->spi->dev, - "Using edge triggered irq's are not recommended!\n"); + "Using edge triggered irq's are not recommended, because it can cause races and result in a non-functional driver!\n"); if (irq_type == IRQ_TYPE_EDGE_FALLING || irq_type == IRQ_TYPE_LEVEL_LOW) irq_pol = IRQ_ACTIVE_LOW; |