Thread (22 messages) 22 messages, 3 authors, 2012-04-12
STALE5163d

[PATCH] ARM: pxa: mfp: Force gpio direction for MFP_LPM_KEEP_OUTPUT

From: Paul Parsons <hidden>
Date: 2012-04-05 11:15:06

Hello Igor,
--- On Thu, 5/4/12, Igor Grinberg <grinberg@compulab.co.il> wrote:
quoted
quoted
Please, check the attached patch.
It should not change the meaning of KEEP_OUTPUT,
but fix the
quoted
quoted
bug.
Yes, your patch - pxa2xx-mfp.patch - does fix the
KEEP_OUTPUT bug.

Looking at it one more time, we setup the GPDR with values
from gpdr_lpm,
and afterwards we setup them once again to update for
KEEP_CONFIG.
This can introduce a kind of spike on the GPIO (depending on
how fast
the system runs).
So, fixed patch attached. Can you please test it once more
and I will
submit it properly?
Yes, I've tested it and this new patch fixes the KEEP_OUTPUT bug.

Regards,
Paul
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