[PATCHv2 2.6.40 2/3] ARM:simpad: Cleanup CS3 accessors.

[Jamie Iles]

Hi Jochen,

On Mon, Apr 18, 2011 at 03:00:35PM +0200, Jochen Friedrich wrote:
> - prepend CS3 accessors by simpad_ to indicate they
>   are specific to simpad devices.
> - use spinlock to protect shadow register.
> - implement 8 read-only pins.
> - use readl/writel macros so barriers are used where
>   necessary.
> - register CS3 as GPIO controller with 24 pins
>   (16 output only and 8 input only).

I think the basic-mmio-gpio driver (drivers/gpio/basic_mmio_gpio.c) 
should cover the GPIO controller portion of this (including the 
shadowing etc).  This may need a few other bits (simpad_uart_pm(), 
simpad_map_io() etc) converting over to use the GPIO API though.

Jamie