[3.19.y-ckt stable] Patch "mmc: sdhci-pci: set the clear transfer mode register quirk for O2Micro" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    mmc: sdhci-pci: set the clear transfer mode register quirk for O2Micro

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt8.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 8e7c75faf889e6908bbbd20e3e809c924d7cfb0c Mon Sep 17 00:00:00 2001
From: Adam Lee <adam.lee at canonical.com>
Date: Mon, 3 Aug 2015 14:33:28 +0800
Subject: mmc: sdhci-pci: set the clear transfer mode register quirk for
 O2Micro

commit 143b648ddf1583905fa15d32be27a31442fc7933 upstream.

This patch fixes MMC not working issue on O2Micro/BayHub Host, which
requires transfer mode register to be cleared when sending no DMA
command.

Signed-off-by: Peter Guo <peter.guo at bayhubtech.com>
Signed-off-by: Adam Lee <adam.lee at canonical.com>
Signed-off-by: Ulf Hansson <ulf.hansson at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/mmc/host/sdhci-pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 4f38554..4df5700 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -549,6 +549,7 @@ static int jmicron_resume(struct sdhci_pci_chip *chip)
 static const struct sdhci_pci_fixes sdhci_o2 = {
 	.probe = sdhci_pci_o2_probe,
 	.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+	.quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD,
 	.probe_slot = sdhci_pci_o2_probe_slot,
 	.resume = sdhci_pci_o2_resume,
 };
--
1.9.1