From fce21ae4ccfcee0c28fb18f5507e145fb0b02dec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Wed, 22 Mar 2017 21:09:00 +0100 Subject: brcm2708: rename all patches from raspberrypi git tree to use 950 prefix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Right now all brcm2708 patches are extracted from the non-mainline raspberrypi/linux git tree. Many of them are hacks and/or are unneeded in LEDE. Raspberry Pi is getting better and better mainline support so it would be nice to finally start maintaining patches in a cleaner way: 1) Backport patches accepted in upstream tree 2) Start using upstream drivers 3) Pick only these patches that are needed for more complete support Handling above tasks requires grouping patches - ideally using the same prefixes as generic ones. It means we should rename existing patches to use some high prefix. This will allow e.g. use 0xx for backported code. Signed-off-by: Rafał Miłecki Acked-by: Florian Fainelli Acked-by: Stijn Tintel --- ...oid-suspending-if-we-re-in-gadget-mode-18.patch | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.9/950-0139-usb-dwc2-Avoid-suspending-if-we-re-in-gadget-mode-18.patch (limited to 'target/linux/brcm2708/patches-4.9/950-0139-usb-dwc2-Avoid-suspending-if-we-re-in-gadget-mode-18.patch') diff --git a/target/linux/brcm2708/patches-4.9/950-0139-usb-dwc2-Avoid-suspending-if-we-re-in-gadget-mode-18.patch b/target/linux/brcm2708/patches-4.9/950-0139-usb-dwc2-Avoid-suspending-if-we-re-in-gadget-mode-18.patch new file mode 100644 index 0000000000..1ed31c2d2e --- /dev/null +++ b/target/linux/brcm2708/patches-4.9/950-0139-usb-dwc2-Avoid-suspending-if-we-re-in-gadget-mode-18.patch @@ -0,0 +1,51 @@ +From 2ca9749f5b4326dad52756eaf5e7865504b4d374 Mon Sep 17 00:00:00 2001 +From: ED6E0F17 +Date: Fri, 3 Feb 2017 14:52:42 +0000 +Subject: [PATCH] usb: dwc2: Avoid suspending if we're in gadget mode (#1825) + +I've found when booting HiKey with the usb gadget cable attached +if I then try to connect via adb, I get an infinite spew of: + +dwc2 f72c0000.usb: dwc2_hsotg_ep_sethalt(ep ffffffc0790ecb18 ep1out, 0) +dwc2 f72c0000.usb: dwc2_hsotg_ep_sethalt(ep ffffffc0790eca18 ep1in, 0) + +It seems that the usb autosuspend is suspending the bus shortly +after bootup when the gadget cable is attached. So when adbd +then tries to use the device, it doesn't work and it then tries +to restart it over and over via the ep_sethalt calls (via +FUNCTIONFS_CLEAR_HALT ioctl). + +Chen Yu suggested this patch to avoid suspending if we're +in device mode, and it avoids the problem. + +Cc: Wei Xu +Cc: Guodong Xu +Cc: Amit Pundir +Cc: Rob Herring +Cc: John Youn +Cc: Douglas Anderson +Cc: Chen Yu +Cc: Kishon Vijay Abraham I +Cc: Felipe Balbi +Cc: Greg Kroah-Hartman +Cc: linux-usb@vger.kernel.org +Suggested-by: Chen Yu +Signed-off-by: John Stultz +Signed-off-by: John Youn +Signed-off-by: Felipe Balbi +--- + drivers/usb/dwc2/hcd.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/drivers/usb/dwc2/hcd.c ++++ b/drivers/usb/dwc2/hcd.c +@@ -4365,6 +4365,9 @@ static int _dwc2_hcd_suspend(struct usb_ + if (!HCD_HW_ACCESSIBLE(hcd)) + goto unlock; + ++ if (hsotg->op_state == OTG_STATE_B_PERIPHERAL) ++ goto unlock; ++ + if (!hsotg->core_params->hibernation) + goto skip_power_saving; + -- cgit v1.2.3