Re: [PATCH 5/8] omap_hsmmc: RX51: set padconfs to pull down when powering off eMMC

Tony Lindgren
2010-01-13T21:00:38Z

* Tony Lindgren <tony@atomide.com> [100113 12:38]:
> * Tony Lindgren <tony@atomide.com> [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.

Regards,

Tony