This is a note to let you know that I've just added the patch titled
usb: Make sure usb/phy/of gets built-in
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:
usb-make-sure-usb-phy-of-gets-built-in.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.
>From 3d6159640da9c9175d1ca42f151fc1a14caded59 Mon Sep 17 00:00:00 2001
From: Alexey Brodkin <Alexey.Brodkin@xxxxxxxxxxxx>
Date: Thu, 13 Apr 2017 15:33:34 +0300
Subject: usb: Make sure usb/phy/of gets built-in
From: Alexey Brodkin <Alexey.Brodkin@xxxxxxxxxxxx>
commit 3d6159640da9c9175d1ca42f151fc1a14caded59 upstream.
DWC3 driver uses of_usb_get_phy_mode() which is
implemented in drivers/usb/phy/of.c and in bare minimal
configuration it might not be pulled in kernel binary.
In case of ARC or ARM this could be easily reproduced with
"allnodefconfig" +CONFIG_USB=m +CONFIG_USB_DWC3=m.
On building all ends-up with:
---------------------->8------------------
Kernel: arch/arm/boot/Image is ready
Kernel: arch/arm/boot/zImage is ready
Building modules, stage 2.
MODPOST 5 modules
ERROR: "of_usb_get_phy_mode" [drivers/usb/dwc3/dwc3.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
---------------------->8------------------
Signed-off-by: Alexey Brodkin <abrodkin@xxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxxxxxx>
Cc: Felix Fietkau <nbd@xxxxxxxx>
Cc: Jeremy Kerr <jk@xxxxxxxxxx>
Cc: linux-snps-arc@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/Makefile | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -98,6 +98,7 @@ obj-$(CONFIG_USB_PHY) += usb/
obj-$(CONFIG_USB) += usb/
obj-$(CONFIG_PCI) += usb/
obj-$(CONFIG_USB_GADGET) += usb/
+obj-$(CONFIG_OF) += usb/
obj-$(CONFIG_SERIO) += input/serio/
obj-$(CONFIG_GAMEPORT) += input/gameport/
obj-$(CONFIG_INPUT) += input/
Patches currently in stable-queue which might be from Alexey.Brodkin@xxxxxxxxxxxx are
queue-4.4/usb-make-sure-usb-phy-of-gets-built-in.patch