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mmc: sdio: add reset callback to bus operations 

Some drivers schedule automatic hw resets. An example is mwifiex,
which schedules a card reset if the command handler between driver
and card firmware becomes out of sync

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Andreas Fenkart 2015-04-23 13:15:42 +02:00 committed by Ulf Hansson
parent ba155e2d21
commit 1fb654fd97
1 changed files with 7 additions and 0 deletions
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7
drivers/mmc/core/sdio.c
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@ -1056,6 +1056,12 @@ static int mmc_sdio_runtime_resume(struct mmc_host *host)
return mmc_sdio_power_restore(host); return mmc_sdio_power_restore(host);
} }
static int mmc_sdio_reset(struct mmc_host *host)
{
mmc_power_cycle(host, host->card->ocr);
return mmc_sdio_power_restore(host);
}
static const struct mmc_bus_ops mmc_sdio_ops = { static const struct mmc_bus_ops mmc_sdio_ops = {
.remove = mmc_sdio_remove, .remove = mmc_sdio_remove,
.detect = mmc_sdio_detect, .detect = mmc_sdio_detect,
@ -1066,6 +1072,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
.runtime_resume = mmc_sdio_runtime_resume, .runtime_resume = mmc_sdio_runtime_resume,
.power_restore = mmc_sdio_power_restore, .power_restore = mmc_sdio_power_restore,
.alive = mmc_sdio_alive, .alive = mmc_sdio_alive,
.reset = mmc_sdio_reset,
}; };