mmc: core: Support the optional init_card() callback for MMC and SD

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In (3fcb027 ARM: MXC: mxcmmc: work around a bug in the SDHC busy line
handling) the optional init_card() callback was added.  According to
the original change it was "for now only called from
mmc_sdio_init_card()".

This callback really ought to be called from the SD and MMC init
functions as well.  One current user of this callback
(mxcmci_init_card) will not work as expected if you insert an SDIO
card, then eject it and put a normal SD card in.  Specifically the
normal SD card will not get to run with 4-bit data.

I'd like to use the init_card() callback to handle a similar quirk on
dw_mmc when using SDIO Interrupts (the "low power" feature of the card
needs to be disabled), so that will add a second user of the function.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

...

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Doug Anderson 2014-12-02 15:42:45 -08:00 • committed by Ulf Hansson

parent a48fd4e77a

commit eac86321b5

2 changed files with 12 additions and 1 deletions

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6

drivers/mmc/core/mmc.c

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7

drivers/mmc/core/sd.c

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