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gpio: driver for PrimeCell PL061 GPIO controller

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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>
This commit is contained in:
Baruch Siach
2009-06-18 16:48:58 -07:00
committed by Linus Torvalds
parent 0732f87761
commit 1e9c285998
4 changed files with 363 additions and 0 deletions
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15
include/linux/amba/pl061.h Normal file
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/* 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 */
};