at86rf230: add irq type configuration option

Add option to at86rf230 platform data to configure the type of the
interrupt used by the driver. The irq polarity of the device will
be configured accordingly.

Signed-off-by: Sascha Herrmann <sascha@ps.nvbi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/spi/at86rf230.h b/include/linux/spi/at86rf230.h
index b2b1afbb3202..aa327a8105ad 100644
--- a/include/linux/spi/at86rf230.h
+++ b/include/linux/spi/at86rf230.h
@@ -26,6 +26,20 @@ struct at86rf230_platform_data {
         int rstn;
         int slp_tr;
         int dig2;
+
+        /* Setting the irq_type will configure the driver to request
+         * the platform irq trigger type according to the given value
+         * and configure the interrupt polarity of the device to the
+         * corresponding polarity.
+         *
+         * Allowed values are: IRQF_TRIGGER_RISING, IRQF_TRIGGER_FALLING,
+         *                     IRQF_TRIGGER_HIGH and IRQF_TRIGGER_LOW
+         *
+         * Setting it to 0, the driver does not touch the trigger type
+         * configuration of the interrupt and sets the interrupt polarity
+         * of the device to high active (the default value).
+         */
+        int irq_type;
 };
 
 #endif