atmel-mci: Add support for inverted detect pin

Same patch as before, modified to use bool. Also adds description of
the new field in struct atmel_mci that I missed in the first patch.

This patch adds Atmel MCI support for inverted detect pins.

Signed-off-by: Jonas Larsson <jonas.larsson@martinsson.se>
Acked-by: Pierre Ossman <pierre@ossman.eu>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 2f1f957..57b1846 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -10,6 +10,7 @@
  * @bus_width: Number of data lines wired up the slot
  * @detect_pin: GPIO pin wired to the card detect switch
  * @wp_pin: GPIO pin wired to the write protect sensor
+ * @detect_is_active_high: The state of the detect pin when it is active
  *
  * If a given slot is not present on the board, @bus_width should be
  * set to 0. The other fields are ignored in this case.
@@ -24,6 +25,7 @@
 	unsigned int		bus_width;
 	int			detect_pin;
 	int			wp_pin;
+	bool			detect_is_active_high;
 };
 
 /**