--- On Fri, 30/3/12, Igor Grinberg <grinberg@compulab.co.il> wrote:

quoted

On 03/28/12 20:12, Paul Parsons
wrote:

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On PXA2xx platforms, the MFP API (described in

Documentation/arm/pxa/mfp.txt)

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provides values for the following:

1. GPIO inputs (e.g. GPIO105_GPIO).
2. Alternate function inputs (e.g. GPIO105_CIF_DD_1).
3. Alternate function outputs (e.g.

GPIO105_KP_MKOUT_2).

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It does not provide values for GPIO outputs (i.e. AF0

outputs).

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One cannot use the macro used by the MFP API internally

- MFP_CFG_OUT() - to

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define new GPIO output values, since that macro is

forbidden in platform code.

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Without the ability to add GPIO outputs to the MFP

configuration, it is not

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possible to drive GPIO outputs high during sleep mode.

This would be useful, for example, on the hx4700

platform, where driving the

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infrared powerdown GPIO 105 high during sleep mode

would save some mA.

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So my question is: what method should one use to add

GPIO outputs to the MFP

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configuration?

One possible method, namely manually defining values in

the platform code:

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    MFP_PIN_GPIO105 | MFP_AF0 |

MFP_DIR_OUT | MFP_LPM_DRIVE_HIGH,

Have you tried:
GPIO105_GPIO | MFP_LPM_DRIVE_HIGH,
?

This way it works on other boards.

Hello Igor,

GPIO105_GPIO expands to a GPIO input - MFP_CFG_IN(GPIO105, AF0) -
not an output.