Messages in this thread | | | Date | Sun, 7 Nov 2010 17:15:59 +0000 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH] mmci: reset voltage after power off. |
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On Fri, Nov 05, 2010 at 10:35:41AM +0100, Linus Walleij wrote: > From: Ulf Hansson <ulf.hansson@stericsson.com> > > At power off, reset OCR mask to be the highest possible voltage > supported for the current mmc host. > > This solves the re-initialization during the power up sequence. > The voltage may have been decreased due to the card accepts a lower > voltage than the voltage used during the initialization sequence. > We need to reset the voltage to by the host highest possible value > since according to specification the initialization must always be > done at high voltage.
Surely this should already be done by:
/* If ocr is set, we use it */ if (host->ocr) bit = ffs(host->ocr) - 1; else bit = fls(host->ocr_avail) - 1;
in mmc_power_up ?
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