tree 559f972f69ad5fe32eb1f92e6c52be1fff190138
parent fd546ee6a7dc4b71ebc6d1205bf72ea3c1c7030a
author Chaotian Jing <chaotian.jing@mediatek.com> 1443605838 +0800
committer Ulf Hansson <ulf.hansson@linaro.org> 1443617662 +0200

mmc: core: fix dead loop of mmc_retune

When get a CRC error, start the mmc_retune, it will issue CMD19/CMD21
to do tune, assume there were 10 clock phase need to try, phase 0 to
phase 6 is ok, phase 7 to phase 9 is NG, we try it from 0 to 9, so
the last CMD19/CMD21 will get CRC error, host->need_retune was set and
cause mmc_retune was called, then dead loop of mmc_retune

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: bd11e8bd03ca ("mmc: core: Flag re-tuning is needed on CRC errors")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>