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| * | | | | usb: musb: add musb_host_setup() and musb_host_cleanup()Daniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch re-introduces the bits that are necessary to use the musb controller in host mode. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: add Kconfig options for HOST, GAGDET or DUAL_ROLE modesDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes building the actual object files optional to the selected mode, which saves users who know which kind of USB mode support they need some binary size. Unimplemented functions are stubbed out with static inline functions. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: factor out hcd initalizationDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The musb struct is currently allocated along with the hcd, which makes it difficult to build a driver that only acts as gadget device. Fix this by allocating musb directly, and keep the hcd around as a pointer in the musb struct. struct hc_driver musb_hc_driver can now also be static to musb_host.c, and the macro musb_to_hcd() is just a pointer dereferencer for now, and will be eliminated later. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: move musb_start to musb_virthub.cDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function has its only user in musb_virthub.c, so let's move it there and make it static. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: gadget: remove hcd initializationDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will be done from a more appropriate location and as it doesn't work anyway, it can safely be removed before the other changes. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: factor some host-specific functionsDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In particular, this introduces musb_host_resume_root_hub()and musb_host_poke_root_hub() which will be stubbed out later. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: move function declarations to musb_{host,gadget}.hDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let the function declarations live in the header files they belong to, which makes it easier to stub them out later. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: gadget: drop unused USB_GADGET_MUSB_HDRCDaniel Mack2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The functionality meant to be represented by this symbol will be re-added later, but for now, USB_GADGET_MUSB_HDRC is in fact unused and can be dropped. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: remove 'ignore_disconnect' flagFelipe Balbi2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was related to an old bug on early versions of TUSB6010 which we don't support anymore. It's known to cause issues on several other situations with more recent devices so we better remove this flag now and come up with a better workaround should one be deemed necessary. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: musb: fix incorrect usage of resource pointerFelipe Balbi2013-05-28
| | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can't simply pass the resource pointer from our device down to our children, otherwise module reinsertion will not work as the resource will continue to be marked as busy. Fix it by building a proper struct resource for our child musb device. Tested-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Felipe Balbi <balbi@ti.com>
* | | | | USB: serial: ports: add minor and port numberGreg Kroah-Hartman2013-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The usb_serial_port structure had the number field, which was the minor number for the port, which almost no one really cared about. They really wanted the number of the port within the device, which you had to subtract from the minor of the parent usb_serial_device structure. To clean this up, provide the real minor number of the port, and the number of the port within the serial device separately, as these numbers might not be related in the future. Bonus is that this cleans up a lot of logic in the drivers, and saves lines overall. Tested-by: Tobias Winter <tobias@linuxdingsda.de> Reviewed-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -- drivers/staging/serqt_usb2/serqt_usb2.c | 21 +++-------- drivers/usb/serial/ark3116.c | 2 - drivers/usb/serial/bus.c | 6 +-- drivers/usb/serial/console.c | 2 - drivers/usb/serial/cp210x.c | 2 - drivers/usb/serial/cypress_m8.c | 4 +- drivers/usb/serial/digi_acceleport.c | 6 --- drivers/usb/serial/f81232.c | 5 +- drivers/usb/serial/garmin_gps.c | 6 +-- drivers/usb/serial/io_edgeport.c | 58 ++++++++++++-------------------- drivers/usb/serial/io_ti.c | 21 ++++------- drivers/usb/serial/keyspan.c | 29 +++++++--------- drivers/usb/serial/metro-usb.c | 4 +- drivers/usb/serial/mos7720.c | 37 +++++++++----------- drivers/usb/serial/mos7840.c | 52 +++++++++------------------- drivers/usb/serial/opticon.c | 2 - drivers/usb/serial/pl2303.c | 2 - drivers/usb/serial/quatech2.c | 7 +-- drivers/usb/serial/sierra.c | 2 - drivers/usb/serial/ti_usb_3410_5052.c | 10 ++--- drivers/usb/serial/usb-serial.c | 7 ++- drivers/usb/serial/usb_wwan.c | 2 - drivers/usb/serial/whiteheat.c | 20 +++++------ include/linux/usb/serial.h | 6 ++- 24 files changed, 133 insertions(+), 180 deletions(-)
* | | | | Merge 3.10-rc5 into usb-nextGreg Kroah-Hartman2013-06-09
|\ \ \ \ \ | | |/ / / | |/| | | | | | | | | | | | | | | | | | We need the changes in this branch. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: option,zte_ev: move most ZTE CDMA devices to zte_evDan Williams2013-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per some ZTE Linux drivers I found for the AC2716, the following patch moves most ZTE CDMA devices from option to zte_ev. The blacklist stuff that option does is not required with zte_ev, because it doesn't implement any of the send_setup hooks which the blacklist suppressed. I did not move the 2718 over because I could not find any ZTE Linux drivers for that device, nor even any Windows drivers. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: option: blacklist network interface on Huawei E1820Bjørn Mork2013-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mode used by Windows for the Huawei E1820 will use the same ff/ff/ff class codes for both serial and network functions. Reported-by: Graham Inggs <graham.inggs@uct.ac.za> Signed-off-by: Bjørn Mork <bjorn@mork.no> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: whiteheat: fix broken port configurationJohan Hovold2013-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When configuring the port (e.g. set_termios) the port minor number rather than the port number was used in the request (and they only coincide for minor number 0). Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: serial: fix TIOCMIWAIT return valueJohan Hovold2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix regression introduced by commit 143d9d9616 ("USB: serial: add tiocmiwait subdriver operation") which made the ioctl operation return ENODEV rather than ENOIOCTLCMD when a subdriver TIOCMIWAIT implementation is missing. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: mos7720: fix hardware flow controlJohan Hovold2013-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The register access to enable hardware flow control depends on the device port number and not the port minor number. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: keyspan: remove unused endpoint-array accessJohan Hovold2013-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the no longer used endpoint-array access completely. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: keyspan: fix bogus array indexJohan Hovold2013-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The outcont_endpoints array was indexed using the port minor number (which can be greater than the array size) rather than the device port number. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: zte_ev: fix broken openJohan Hovold2013-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus port-number check in open and close, which prevented this driver from being used with a minor number different from zero. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: serial: Add Option GTM681W to qcserial device table.Richard Weinberger2013-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Option GTM681W uses a qualcomm chip and can be served by the qcserial device driver. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: Serial: cypress_M8: Enable FRWD Dongle hidcom deviceRobert Butora2013-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch adds a new HIDCOM device and does not affect other devices driven by the cypress_M8 module. Changes are: - add VendorID ProductID to device tables - skip unstable speed check because FRWD uses 115200bps - skip reset at probe which is an issue workaround for this particular device. Signed-off-by: Robert Butora <robert.butora.fi@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: EHCI: fix regression related to qh_refresh()Alan Stern2013-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds some code that inadvertently got left out of commit c1fdb68e3d73741630ca16695cf9176c233be7ed (USB: EHCI: changes related to qh_refresh()). The calls to qh_refresh() and qh_link_periodic() were taken out of qh_schedule(); therefore it is necessary to call these routines manually after calling qh_schedule(). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | usbfs: Increase arbitrary limit for USB 3 isopkt lengthFederico Manzan2013-05-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increase the current arbitrary limit for isocronous packet size to a value large enough to account for USB 3.0 super bandwidth streams, bMaxBurst (0~15 allowed, 1~16 packets) bmAttributes (bit 1:0, mult 0~2, 1~3 packets) so the size max for one USB 3 isocronous transfer is 1024 byte * 16 * 3 = 49152 byte Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Federico Manzan <f.manzan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: zte_ev: fix control-message timeoutsJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The control-message timeout is specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: mos7720: fix message timeoutsJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The control and bulk-message timeouts are specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: iuu_phoenix: fix bulk-message timeoutJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bulk-message timeout is specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: ark3116: fix control-message timeoutJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The control-message timeout is specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: mos7840: fix DMA to stackJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix regression introduced by commit 0eafe4de1a ("USB: serial: mos7840: add support for MCS7810 devices") which used stack-allocated buffers for control messages. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: mos7720: fix DMA to stackJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The read_mos_reg function is called with stack-allocated buffers, which must not be used for control messages. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: visor: fix initialisation of Treo/Kyocera devicesJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix regression introduced by commit 214916f2e ("USB: visor: reimplement using generic framework") which broke initialisation of Treo/Kyocera devices that re-mapped bulk-in endpoints. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: serial: fix Treo/Kyocera interrrupt-in urb contextJohan Hovold2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The first and second interrupt-in urbs are swapped for some Treo/Kyocera devices, but the urb context was never updated with the new port. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: revert periodic scheduling bugfixAlan Stern2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch reverts commit 3e619d04159be54b3daa0b7036b0ce9e067f4b5d (USB: EHCI: fix bug in scheduling periodic split transfers). The commit was valid -- it fixed a real bug -- but the periodic scheduler in ehci-hcd is in such bad shape (especially the part that handles split transactions) that fixing one bug is very likely to cause another to surface. That's what happened in this case; the result was choppy and noisy playback on certain 24-bit audio devices. The only real fix will be to rewrite this entire section of code. My next project... This fixes https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110. Thanks to Tim Richardson for extra testing and feedback, and to Joseph Salisbury and Tyson Tan for tracking down the original source of the problem. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Joseph Salisbury <joseph.salisbury@canonical.com> CC: Tim Richardson <tim@tim-richardson.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | Merge tag 'for-usb-linus-2013-05-24' of ↵Greg Kroah-Hartman2013-05-28
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus Sarah writes: xhci: Misc bug fixes for 3.10. Hi Greg, Here's four xHCI bug fixes that should be queued for 3.10. The first two are generic bug fixes, and have been in my queue for a while because I've been doing the OPW internship coordination. I suspect you'll be seeing more pull requests from me now that the intern selection process is almost over. :) The last two patches fix a nasty kernel crash on resume from S3 for TI hosts that have the compliance mode quirk. Tony has confirmed that the patches fix the issue on the effected systems. All four patches are marked for stable. Sarah Sharp
| | * | | | xhci: Disable D3cold for buggy TI redrivers.Sarah Sharp2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some xHCI hosts contain a "redriver" from TI that silently drops port status connect changes if the port slips into Compliance Mode. If the port slips into compliance mode while the host is in D0, there will not be a port status change event. If the port slips into compliance mode while the host is in D3, the host will not send a PME. This includes when the system is suspended (S3) or hibernated (S4). If this happens when the system is in S3/S4, there is nothing software can do. Other port status change events that would normally cause the host to wake the system from S3/S4 may also be lost. This includes remote wakeup, disconnects and connects on other ports, and overrcurrent events. A decision was made to _NOT_ disable system suspend/hibernate on these systems, since users are unlikely to enable wakeup from S3/S4 for the xHCI host. Software can deal with this issue when the system is in S0. A work around was put in to poll the port status registers for Compliance Mode. The xHCI driver will continue to poll the registers while the host is runtime suspended. Unfortunately, that means we can't allow the PCI device to go into D3cold, because power will be removed from the host, and the config space will read as all Fs. Disable D3cold in the xHCI PCI runtime suspend function. This patch should be backported to kernels as old as 3.2, that contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware" Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: stable@vger.kernel.org
| | * | | | xhci - correct comp_mode_recovery_timer on return from hibernateTony Camuso2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 71c731a2 (usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware) was a workaround for systems using the SN65LVPE502CP, controller, but it introduced a bug in resume from hibernate. The fix created a timer, comp_mode_recovery_timer, which is deleted from a timer list when xhci_suspend() is called. However, the hibernate image, including the timer list containing the comp_mode_recovery_timer, had already been saved before the timer was deleted. Upon resume from hibernate, the list containing the comp_mode_recovery_timer is restored from the image saved to disk, and xhci_resume(), assuming that the timer had been deleted by xhci_suspend(), makes a call to compliance_mode_recoery_timer_init(), which creates a new instance of the comp_mode_recovery_timer and attempts to place it into the same list in which it is already active, thus corrupting the list during the list_add() call. At this point, a call trace is emitted indicating the list corruption. Soon afterward, the system locks up, the watchdog times out, and the ensuing NMI crashes the system. The problem did not occur when resuming from suspend. In suspend, the image in RAM remains exactly as it was when xhci_suspend() deleted the comp_mode_recovery_timer, so there is no problem when xhci_resume() creates a new instance of this timer and places it in the still empty list. This patch avoids the problem by deleting the timer in xhci_resume() when resuming from hibernate. Now xhci_resume() can safely make the call to create a new instance of this timer, whether returning from suspend or hibernate. Thanks to Alan Stern for his help with understanding the problem. [Sarah reworked this patch to cover the case where the xHCI restore register operation fails, and (temp & STS_SRE) is true (and we re-init the host, including re-init for the compliance mode), but hibernate is false. The original patch would have caused list corruption in this case.] This patch should be backported to kernels as old as 3.2, that contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware" Signed-off-by: Tony Camuso <tcamuso@redhat.com> Tested-by: Tony Camuso <tcamuso@redhat.com> Acked-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
| | * | | | xhci: fix list access before initVladimir Murzin2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If for whatever reason we fall into fail path in xhci_mem_init() before bw table gets initialized we may access the uninitialized lists in xhci_mem_cleanup(). Check for bw table before traversing lists in cleanup routine. This patch should be backported to kernels as old as 3.2, that contain the commit 839c817ce67178ca3c7c7ad534c571bba1e69ebe "xhci: Store information about roothubs and TTs." Reported-by: Sergey Dyasly <dserrg@gmail.com> Tested-by: Sergey Dyasly <dserrg@gmail.com> Signed-off-by: Vladimir Murzin <murzin.v@gmail.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
| | * | | | xhci-mem: init list heads at the beginning of initSergio Aguirre2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that we fail on xhci_mem_init, just before doing the INIT_LIST_HEAD, and calling xhci_mem_cleanup. Problem is that, the list_for_each_entry_safe macro, assumes list heads are initialized (not NULL), and dereferences their 'next' pointer, causing a kernel panic if this is not yet initialized. Let's protect from that by moving inits to the beginning. This patch should be backported to kernels as old as 3.2, that contain the commit 9574323c39d1f8359a04843075d89c9f32d8b7e6 "xHCI: test USB2 software LPM". Signed-off-by: Sergio Aguirre <sergio.a.aguirre.rodriguez@intel.com> Acked-by: David Cohen <david.a.cohen@intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
| * | | | | usb: musb: make use_sg flag URB specificVirupax Sadashivpetimath2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since highmem PIO URB handling was introduced in: 8e8a551 usb: musb: host: Handle highmem in PIO mode when a URB is being handled it may happen that the static use_sg flag was set by a previous URB with buffer in highmem. This leads to error in handling the present URB. Fix this by making the use_sg flag URB specific. Cc: stable <stable@vger.kernel.org> # 3.7+ Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: dwc3: gadget: free trb pool only from epnum 2George Cherian2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | we never allocate a TRB pool for physical endpoints 0 and 1 so trying to free it (a invalid TRB pool pointer) will lead us in a warning while removing dwc3.ko module. In order to fix the situation, all we have to do is skip dwc3_free_trb_pool() for physical endpoints 0 and 1 just as we while deleting endpoints from the endpoints list. Cc: stable@vger.kernel.org Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: dwc3: exynos: PHY should be deleted later than dwc3 corePeter Chen2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the glue layer is removed first (core layer later), it deletes the phy device first, then the core device. But at core's removal, it still uses PHY's resources, it may cause kernel's oops. It is much like the problem Paul Zimmerman reported at: http://marc.info/?l=linux-usb&m=136547502011472&w=2. Besides, it is reasonable the PHY is deleted at last as the controller is the PHY's user. Signed-off-by: Peter Chen <peter.chen@freescale.com> Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | | | usb: dwc3: pci: PHY should be deleted later than dwc3 corePeter Chen2013-05-28
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the glue layer is removed first (core layer later), it deletes the phy device first, then the core device. But at core's removal, it still uses PHY's resources, it may cause kernel's oops. It is much like the problem Paul Zimmerman reported at: http://marc.info/?l=linux-usb&m=136547502011472&w=2. Besides, it is reasonable the PHY is deleted at last as the controller is the PHY's user. Signed-off-by: Peter Chen <peter.chen@freescale.com> Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
* | | | | Merge tag 'for-usb-next-2013-06-06' of ↵Greg Kroah-Hartman2013-06-06
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next Sarah writes: xHCI: USB 2.0 Link PM and misc cleanup patches Hi Greg, Here's six patches to be queued for 3.11. The first four add support for a new type of host hardware-managed USB 2.0 Link Power Management. Hosts with BESL support, including Intel Haswell ULT systems, will now be able to have USB 2.0 devices go into the lower power link state (L1) in between packets. These patches have been tested on Haswell ULT platforms with USB 2.0 webcams that support Link PM. The other two patches are clean up. One from Julius clarifies the xHCI endpoint context debugging to make it consistent with standard endpoint addresses, instead of xHCI endpoint context indexes. The one from Alex changes the xHCI driver to be consistent about passing a void pointer to the xHCI IRQ handler. Sarah Sharp
| * | | | | usb: add usb2 Link PM variables to sysfs and usb_deviceMathias Nyman2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds abitilty to tune L1 timeout (inactivity timer for usb2 link sleep) and BESL (best effort service latency)via sysfs. This also adds a new usb2_lpm_parameters structure with those variables to struct usb_device. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| * | | | | usb: xhci: add USB2 Link power management BESL supportMathias Nyman2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | usb 2.0 devices with link power managment (LPM) can describe their idle link timeouts either in BESL or HIRD format, so far xHCI has only supported HIRD but later xHCI errata add BESL support as well BESL timeouts need to inform exit latency changes with an evaluate context command the same way USB 3.0 link PM code does. The same xhci_change_max_exit_latency() function is used as with USB3 but code is pulled out from #ifdef CONFIG_PM as USB2.0 BESL LPM funcionality does not depend on CONFIG_PM. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| * | | | | usb: xhci: define port register names and use them instead of magic numbersMathias Nyman2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| * | | | | usb: xhci: check usb2 port capabilities before adding hw link PM supportMathias Nyman2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hardware link powermanagement in usb2 is a per-port capability. Previously support for hw lpm was enabled for all ports if any usb2 port supported it. Now instead cache the capability values and check them for each port individually Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| * | | | | usb/xhci: unify parameter of xhci_msi_irqAlex Shi2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to Felipe and Alan's comments the second parameter of irq handler should be 'void *' not a specific structure pointer. So change it. Signed-off-by: Alex Shi <alex.shi@intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| * | | | | usb: xhci-dbg: Display endpoint number and direction in context dumpJulius Werner2013-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_XHCI_HCD_DEBUGGING is activated, the XHCI driver can dump device and input contexts to the console. The endpoint contexts in that dump are labeled "Endpoint N Context", where N is the XHCI endpoint index (DCI - 1). This can be very confusing, especially for people who are not that familiar with the XHCI specification. This patch introduces an xhci_get_endpoint_address function (as a counterpart to the reverse xhci_get_endpoint_index), and uses it to additionally display the endpoint number and direction when dumping contexts, which are much more commonly used concepts in USB. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
* | | | | | wusbcore wire adapter: ignore HWA_NOTIF_BPST_ADJ notificationsThomas Pugliese2013-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No action is needed for the HWA_NOTIF_BPST_ADJ event. Ignore it instead of printing a warning to the log since these events can happen dozens of times per second. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>