[U-Boot] [PATCH v4] nios2 : convert altera_pio to driver model

[Thomas Chou]

On 09/30/2015 09:37 PM, Thomas Chou wrote:
> Convert altera_pio to driver model.
>
> Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
> Acked-by: Chin Liang See <clsee at altera.com>
> ---
> v2
>    fix ranges of pio in dts
>    fix coding style as Marek suggested.
> v3
>    change gpio_count device tree binding.
> v4
>    change gpio width default to 32.
>    doc dts binding.
>

Applied to u-boot-nios.