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authorAdrian Hunter <adrian.hunter@intel.com>2015-05-07 13:10:17 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2015-06-01 10:06:55 +0300
commit66073d8671c41fb0bc8c6e36531b4eafb70c990e (patch)
tree2dc0e4c4375a67a052471c9bd2a04e720f9043f1 /drivers/mmc
parent8f11d1064e01e1c8bf33ffef86072c2cb0c05b8c (diff)
downloadlinux-66073d8671c41fb0bc8c6e36531b4eafb70c990e.tar.xz
mmc: core: Hold re-tuning while bkops ongoing
Hold re-tuning during bkops to prevent it from conflicting with the busy state. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/core.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index ff1e38400dc5..adb64087a28a 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -318,12 +318,15 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
use_busy_signal = false;
}
+ mmc_retune_hold(card->host);
+
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BKOPS_START, 1, timeout,
use_busy_signal, true, false);
if (err) {
pr_warn("%s: Error %d starting bkops\n",
mmc_hostname(card->host), err);
+ mmc_retune_release(card->host);
goto out;
}
@@ -334,6 +337,8 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
*/
if (!use_busy_signal)
mmc_card_set_doing_bkops(card);
+ else
+ mmc_retune_release(card->host);
out:
mmc_release_host(card->host);
}
@@ -749,6 +754,7 @@ int mmc_stop_bkops(struct mmc_card *card)
*/
if (!err || (err == -EINVAL)) {
mmc_card_clr_doing_bkops(card);
+ mmc_retune_release(card->host);
err = 0;
}