This is a note to let you know that I've just added the patch titled
mmc: sdhci: Update the tuning failed messages to pr_debug level
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-sdhci-update-the-tuning-failed-messages-to-pr_de.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c53ea7ada7ae4cbe076ae2de9125efdfb1cc9d45
Author: Faiz Abbas <faiz_abbas@xxxxxx>
Date: Fri Dec 6 17:13:26 2019 +0530
mmc: sdhci: Update the tuning failed messages to pr_debug level
[ Upstream commit 2c92dd20304f505b6ef43d206fff21bda8f1f0ae ]
Tuning support in DDR50 speed mode was added in SD Specifications Part1
Physical Layer Specification v3.01. Its not possible to distinguish
between v3.00 and v3.01 from the SCR and that is why since
commit 4324f6de6d2e ("mmc: core: enable CMD19 tuning for DDR50 mode")
tuning failures are ignored in DDR50 speed mode.
Cards compatible with v3.00 don't respond to CMD19 in DDR50 and this
error gets printed during enumeration and also if retune is triggered at
any time during operation. Update the printk level to pr_debug so that
these errors don't lead to false error reports.
Signed-off-by: Faiz Abbas <faiz_abbas@xxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v4.4+
Link: https://lore.kernel.org/r/20191206114326.15856-1-faiz_abbas@xxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 62d37d2ac557..2bae0214528b 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2033,7 +2033,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
spin_lock_irqsave(&host->lock, flags);
if (!host->tuning_done) {
- pr_info(DRIVER_NAME ": Timeout waiting for "
+ pr_debug(DRIVER_NAME ": Timeout waiting for "
"Buffer Read Ready interrupt during tuning "
"procedure, falling back to fixed sampling "
"clock\n");
