gpio: driver for PrimeCell PL061 GPIO controller

This is a driver for the ARM PrimeCell PL061 GPIO AMBA peripheral.  The
driver is implemented using the gpiolib framework.

This driver also includes support for the use of the PL061 as an interrupt
controller (secondary).

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/linux/amba/pl061.h b/include/linux/amba/pl061.h
new file mode 100644
index 000000000000..b4fbd9862606
--- /dev/null
+++ b/include/linux/amba/pl061.h
@@ -0,0 +1,15 @@
+/* platform data for the PL061 GPIO driver */
+
+struct pl061_platform_data {
+        /* number of the first GPIO */
+        unsigned        gpio_base;
+
+        /* number of the first IRQ.
+         * If the IRQ functionality in not desired this must be set to
+         * (unsigned) -1.
+         */
+        unsigned        irq_base;
+
+        u8              directions;     /* startup directions, 1: out, 0: in */
+        u8              values;         /* startup values */
+};