Possibly a command is failing because re-tuning is needed.
Use mmc_retune_recheck() to check re-tuning. At that point
re-tuning is held, at least by the request, so
mmc_retune_recheck() does a mmc_retune_release() and
mmc_retune_hold().
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/mmc/core/core.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 6dad56d..f1d663e 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -429,6 +429,11 @@ static int mmc_wait_for_data_req_done(struct mmc_host *host,
host->areq);
break; /* return err */
} else {
+ err = mmc_retune_recheck(host);
+ if (err) {
+ mmc_host_clk_release(host);
+ break;
+ }
pr_info("%s: req failed (CMD%u): %d, retrying...\n",
mmc_hostname(host),
cmd->opcode, cmd->error);
@@ -451,6 +456,7 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
struct mmc_request *mrq)
{
struct mmc_command *cmd;
+ int err;
while (1) {
wait_for_completion(&mrq->completion);
@@ -478,6 +484,12 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
mmc_card_removed(host->card))
break;
+ err = mmc_retune_recheck(host);
+ if (err) {
+ mmc_host_clk_release(host);
+ break;
+ }
+
pr_debug("%s: req failed (CMD%u): %d, retrying...\n",
mmc_hostname(host), cmd->opcode, cmd->error);
cmd->retries--;
--
1.9.1
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