Re: [patch 2.6.24-rc6-mm 4/9] gpiolib: avr32 at32ap platform support

Haavard Skinnemoen
2008-01-05T21:49:34Z

On Sat, 5 Jan 2008 12:10:56 -0800
David Brownell <david-b@pacbell.net> wrote:

> From: David Brownell <dbrownell@users.sourceforge.net>
>
> 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>
> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>

Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

I'm not going to merge it since the rest of gpiolib isn't in mainline
yet.

Haavard