at86rf230: add irq low-level for polarity

The at86rf2xx chips supports the setting of irq polarity if active low
or active high. This patch adds a handling for IRQ_ACTIVE_LOW if the
irq_type is IRQ_TYPE_LEVEL_LOW.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index e6dec0a..c7a30ce 100644 (file)
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -1321,7 +1321,8 @@ static int at86rf230_hw_init(struct at86rf230_local *lp, u8 xtal_trim)
                return rc;
 
        irq_type = irq_get_trigger_type(lp->spi->irq);
-       if (irq_type == IRQ_TYPE_EDGE_FALLING)
+       if (irq_type == IRQ_TYPE_EDGE_FALLING ||
+           irq_type == IRQ_TYPE_LEVEL_LOW)
                irq_pol = IRQ_ACTIVE_LOW;
 
        rc = at86rf230_write_subreg(lp, SR_IRQ_POLARITY, irq_pol);