This is a note to let you know that I've just added the patch titled
usb: host: xhci-rcar: Avoid long wait in xhci_reset()
to the 4.6-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-host-xhci-rcar-avoid-long-wait-in-xhci_reset.patch
and it can be found in the queue-4.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f879fc32aa0c96fbac261b3d857a1239d554ad01 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Date: Fri, 6 May 2016 15:20:11 +0900
Subject: usb: host: xhci-rcar: Avoid long wait in xhci_reset()
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
commit f879fc32aa0c96fbac261b3d857a1239d554ad01 upstream.
The firmware of R-Car USB 3.0 host controller will control the reset.
So, if the xhci driver doesn't do firmware downloading (e.g. kernel
configuration is CONFIG_USB_XHCI_PLATFORM=y and CONFIG_USB_XHCI_RCAR
is not set), the reset of USB 3.0 host controller doesn't work
correctly. Then, the host controller will cause long wait in
xhci_reset() because the CMD_RESET bit of op_regs->command is not
cleared for 10 seconds.
So, this patch modifies the Kconfig to enable both CONFIG_USB_XHCI_PLATFORM
and CONFIG_USB_XHCI_RCAR.
Fixes: 4ac8918f3a7 (usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers)
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Reviewed-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -35,6 +35,7 @@ config USB_XHCI_PCI
config USB_XHCI_PLATFORM
tristate "Generic xHCI driver for a platform device"
+ select USB_XHCI_RCAR if ARCH_RENESAS
---help---
Adds an xHCI host driver for a generic platform device, which
provides a memory space and an irq.
@@ -63,7 +64,7 @@ config USB_XHCI_MVEBU
config USB_XHCI_RCAR
tristate "xHCI support for Renesas R-Car SoCs"
- select USB_XHCI_PLATFORM
+ depends on USB_XHCI_PLATFORM
depends on ARCH_RENESAS || COMPILE_TEST
---help---
Say 'Y' to enable the support for the xHCI host controller
Patches currently in stable-queue which might be from yoshihiro.shimoda.uh@xxxxxxxxxxx are
queue-4.6/usb-gadget-udc-core-fix-argument-of-dev_err-in-usb_gadget_map_request.patch
queue-4.6/usb-host-xhci-rcar-avoid-long-wait-in-xhci_reset.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html