Tony Lindgren had written, on 01/13/2010 03:00 PM, the following:
* Tony Lindgren <tony@xxxxxxxxxxx> [100113 12:38]:
* Tony Lindgren <tony@xxxxxxxxxxx> [100113 12:36]:
You might want to check what happens in omap off-idle mode in these cases
and see if enabling OMAP_PIN_OFF_INPUT_PULLDOWN makes any difference in
power consumption in off state. That probably does not matter unless the
floating lines cause the eMMC to do something on it's own :)
Or OMAP_PIN_OFF_OUTPUT_LOW actually.
One more time.. Most likely OMAP_PIN_OFF_INPUT_PULLDOWN is safer
in general as the OMAP_PIN_OFF_OUTPUT_LOW does not work for all
pins. According to the TRM, OMAP_PIN_OFF_OUTPUT_LOW only works
for pins where at least one of the mux modes supports output
mode.
is'nt vaux/vmmc/whatever voltage to eMMC shutoff for the device on the
board in off mode? I wonder why the behavior is seen. The only thing
that I am worried is that the board potentially will draw more current
as the lines are driven low.
--
Regards,
Nishanth Menon
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