[PATCH] mach-at91: gsia18s board improvements and bug fixes

[Igor Plyatov]

Hello Jean-Christophe!
> On 13:23 Wed 20 Apr     , Igor Plyatov wrote:
>> * AT91_PIN_Pxxx port names replaced by human readable GPO_xxxx, GPI_xxxx,
> I do not see the improvement

This does not mean that here is no it for all!
This is very noticeable improvement for me regarding to schematic and 
source code maintenance.

>>    GPIO_xxxx names. This simplify source code and schematic maintenance.
>> * Active logic levels and default states corrected for GPOs.
>> * Replace small functions which use platform_register_device() by its direct
>>    calls.
> ditto here

Source code is and more clean and simple now.

>> * Remove GPIO_CARD_UNMOUNT_1 gpio_keys_button, because it not used.
>> * debounce_interval added for critical buttons.
>> * Remove unneeded GPI setup code for buttons, because this done by corresponding
>>    driver.
>> * pcf8574x_0x20_setup() and pcf8574x_0x20_teardown functions small refactoring.
> Best Regards,
> J.