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mmc: fix detection of memory part of SD-combo card with broken SDIO 

In case of failure, mmc_attach_sdio() will power off the SD bus.
Power it up and reinitialize before trying SD memory detection.

Reported-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Michal Miroslaw 2010-12-02 23:38:12 +01:00 committed by Chris Ball
parent 080bc9774b
commit e6f29a8dc1
1 changed files with 5 additions and 0 deletions
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5
drivers/mmc/core/core.c
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@ -1569,6 +1569,11 @@ void mmc_rescan(struct work_struct *work)
* Try SDMEM (but not MMC) even if SDIO
* is broken.
*/
mmc_power_up(host);
sdio_reset(host);
mmc_go_idle(host);
mmc_send_if_cond(host, host->ocr_avail);
if (mmc_send_app_op_cond(host, 0, &ocr))
goto out_fail;