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mmc: mediatek: add ops->get_cd() support

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if user plug out sd card slowly, finally card is plugged out but
cat /proc/partitions can find that card is still exist in kernel.
that's because alougth get card detect interrupt but CMD13 still
can get correct response(all other pins are connected expect card
detect pin).
add ops->get_cd() can avoid this issue.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Chaotian Jing 2017-07-03 14:24:56 +08:00 committed by Ulf Hansson
parent b388dc3c9a
commit c7b16deec9
1 changed files with 1 additions and 0 deletions
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drivers/mmc/host/mtk-sd.c
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@ -1585,6 +1585,7 @@ static struct mmc_host_ops mt_msdc_ops = {
.request = msdc_ops_request,
.set_ios = msdc_ops_set_ios,
.get_ro = mmc_gpio_get_ro,
.get_cd = mmc_gpio_get_cd,
.start_signal_voltage_switch = msdc_ops_switch_volt,
.card_busy = msdc_card_busy,
.execute_tuning = msdc_execute_tuning,