Patch "mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers" has been added to the 4.4-stable tree

Patch "mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers

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-pci-remove-mmc_cap_bus_width_test-for-intel-controllers.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@vger.kernel.org> know about it.


>From 822969369482166050c5b2f7013501505e025c39 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 20 May 2016 10:33:47 +0300
Subject: mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers

From: Adrian Hunter <adrian.hunter@intel.com>

commit 822969369482166050c5b2f7013501505e025c39 upstream.

The CMD19/CMD14 bus width test has been found to be unreliable in
some cases.  It is not essential, so simply remove it.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/mmc/host/sdhci-pci-core.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -361,7 +361,6 @@ static int byt_emmc_probe_slot(struct sd
 {
 	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
 				 MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
-				 MMC_CAP_BUS_WIDTH_TEST |
 				 MMC_CAP_WAIT_WHILE_BUSY;
 	slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
 	slot->hw_reset = sdhci_pci_int_hw_reset;
@@ -377,15 +376,13 @@ static int byt_emmc_probe_slot(struct sd
 static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
-				 MMC_CAP_BUS_WIDTH_TEST |
 				 MMC_CAP_WAIT_WHILE_BUSY;
 	return 0;
 }
 
 static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
 {
-	slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST |
-				 MMC_CAP_WAIT_WHILE_BUSY;
+	slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
 	slot->cd_con_id = NULL;
 	slot->cd_idx = 0;
 	slot->cd_override_level = true;


Patches currently in stable-queue which might be from adrian.hunter@intel.com are

queue-4.4/mmc-mmc-fix-partition-switch-timeout-for-some-emmcs.patch
queue-4.4/mmc-longer-timeout-for-long-read-time-quirk.patch
queue-4.4/mmc-sdhci-acpi-remove-mmc_cap_bus_width_test-for-intel-controllers.patch
queue-4.4/mmc-sdhci-pci-remove-mmc_cap_bus_width_test-for-intel-controllers.patch