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at86rf230: fix irq setup 

Commit 8eba0eefae ("at86rf230: remove irq_type in
request_irq") removed the trigger configuration when requesting an irq,
and instead relied on the interrupt trigger to be properly configured
already. This does not seem to be an assumption that can be safely made,
since boards disable all interrupt triggers on boot.

On these boards, force the irq to trigger on rising edge, which is also
the default for the chip.

Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phoebe Buckheister 2014-06-18 16:28:49 +02:00 committed by David S. Miller
parent 8f2877cad5
commit 363c2cd657
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ieee802154/at86rf230.c
View File

@ -1137,6 +1137,8 @@ static int at86rf230_probe(struct spi_device *spi)
dev->flags = IEEE802154_HW_OMIT_CKSUM | IEEE802154_HW_AACK;
irq_type = irq_get_trigger_type(spi->irq);
if (!irq_type)
irq_type = IRQF_TRIGGER_RISING;
if (irq_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
irq_worker = at86rf230_irqwork;
irq_handler = at86rf230_isr;
@ -1168,7 +1170,8 @@ static int at86rf230_probe(struct spi_device *spi)
if (rc)
goto err_hw_init;
rc = devm_request_irq(&spi->dev, spi->irq, irq_handler, IRQF_SHARED,
rc = devm_request_irq(&spi->dev, spi->irq, irq_handler,
IRQF_SHARED | irq_type,
dev_name(&spi->dev), lp);
if (rc)
goto err_hw_init;