linux/arch/avr32
David Brownell b98348bdd0 gpiolib: avr32 at32ap platform support
Teach AVR32 to use the "GPIO Library" when exposing its GPIOs, so that signals
on external chips (like GPIO expanders) can easily be used.

This mostly reorganizes some existing logic, with two minor changes in
behavior:

 - The PSR registers are used instead of the previous "gpio_mask" values,
   matching AT91 behavior and removing some duplication between that role
   and that of "pinmux_mask".

 - NR_IRQs grew to acommodate a bank of external GPIOs.  Eventually this
   number should probably become a board-specific config option.

There's a debugfs dump of status for the built-in GPIOs, showing which pins
have deglitching, pullups, or open drain drive enabled, as well as the ID
string used when requesting each IRQ.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:13 -08:00
..
boards [AVR32] Kconfig: Choose daughterboard instead of CPU 2008-01-25 08:31:42 +01:00
boot [PATCH] AVR32: Minor Makefile cleanup 2006-10-25 20:26:32 -07:00
configs [AVR32] ATNGW100: Update defconfig 2008-01-25 08:31:43 +01:00
kernel all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
lib [AVR32] Remove last remains of libgcc 2007-02-09 15:01:59 +01:00
mach-at32ap gpiolib: avr32 at32ap platform support 2008-02-05 09:44:13 -08:00
mm [AVR32] constify function pointer tables 2008-01-25 08:31:43 +01:00
oprofile [AVR32] Oprofile support 2008-01-25 08:31:40 +01:00
Kconfig gpiolib: avr32 at32ap platform support 2008-02-05 09:44:13 -08:00
Kconfig.debug [AVR32] Include instrumentation menu 2008-01-25 08:31:40 +01:00
Makefile [AVR32] Add support for AT32AP7001 and AT32AP7002 2008-01-25 08:31:41 +01:00