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 5.4-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_debug-level.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2c92dd20304f505b6ef43d206fff21bda8f1f0ae Mon Sep 17 00:00:00 2001
From: Faiz Abbas <faiz_abbas@xxxxxx>
Date: Fri, 6 Dec 2019 17:13:26 +0530
Subject: mmc: sdhci: Update the tuning failed messages to pr_debug level
From: Faiz Abbas <faiz_abbas@xxxxxx>
commit 2c92dd20304f505b6ef43d206fff21bda8f1f0ae upstream.
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: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/sdhci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2406,8 +2406,8 @@ static int __sdhci_execute_tuning(struct
sdhci_send_tuning(host, opcode);
if (!host->tuning_done) {
- pr_info("%s: Tuning timeout, falling back to fixed sampling clock\n",
- mmc_hostname(host->mmc));
+ pr_debug("%s: Tuning timeout, falling back to fixed sampling clock\n",
+ mmc_hostname(host->mmc));
sdhci_abort_tuning(host, opcode);
return -ETIMEDOUT;
}
Patches currently in stable-queue which might be from faiz_abbas@xxxxxx are
queue-5.4/revert-mmc-sdhci-fix-incorrect-switch-to-hs-mode.patch
queue-5.4/mmc-sdhci-update-the-tuning-failed-messages-to-pr_debug-level.patch
