This is a note to let you know that I've just added the patch titled
phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
to the 3.17-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:
phy-omap-usb2-enable-runtime-pm-of-omap-usb2-phy-properly.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f20531a9aae0c7378d9fa75b4b5d99b7eecab066 Mon Sep 17 00:00:00 2001
From: Oussama Ghorbel <ghorbel@xxxxxxxxxxxxxxxx>
Date: Tue, 4 Nov 2014 11:47:06 +0530
Subject: phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
From: Oussama Ghorbel <ghorbel@xxxxxxxxxxxxxxxx>
commit f20531a9aae0c7378d9fa75b4b5d99b7eecab066 upstream.
The USB OTG port does not work since v3.16 on omap platform.
This is a regression introduced by the commit
eb82a3d846fa (phy: omap-usb2: Balance pm_runtime_enable() on probe failure
and remove).
This because the call to pm_runtime_enable() function is moved after the
call to devm_phy_create() function, which has side effect since later in
the subsequent calls of devm_phy_create() there is a check with
pm_runtime_enabled() to configure few things.
Fixes: eb82a3d846fa
Signed-off-by: Oussama Ghorbel <ghorbel@xxxxxxxxxxxxxxxx>
Tested-by: Rabin Vincent <rabin@xxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/phy/phy-omap-usb2.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -262,14 +262,16 @@ static int omap_usb2_probe(struct platfo
otg->phy = &phy->phy;
platform_set_drvdata(pdev, phy);
+ pm_runtime_enable(phy->dev);
generic_phy = devm_phy_create(phy->dev, NULL, &ops, NULL);
- if (IS_ERR(generic_phy))
+ if (IS_ERR(generic_phy)) {
+ pm_runtime_disable(phy->dev);
return PTR_ERR(generic_phy);
+ }
phy_set_drvdata(generic_phy, phy);
- pm_runtime_enable(phy->dev);
phy_provider = devm_of_phy_provider_register(phy->dev,
of_phy_simple_xlate);
if (IS_ERR(phy_provider)) {
Patches currently in stable-queue which might be from ghorbel@xxxxxxxxxxxxxxxx are
queue-3.17/phy-omap-usb2-enable-runtime-pm-of-omap-usb2-phy-properly.patch
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