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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>
This commit is contained in:
Alexander Aring 2015-02-27 09:58:29 +01:00 committed by Marcel Holtmann
parent be64f07646
commit 702d211c45
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ieee802154/at86rf230.c
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@ -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);