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2014-09-23uas: Simplify unlink of data urbs on errorHans de Goede
There is no need for all the trickery with dropping the lock, we can simply reference the urbs while we hold the lock to ensure the urbs don't disappear beneath us, and do the actual unlink (+ unreference) after we've dropped the lock. This also fixes a race where we may loose of cmnd ownership to the scsi midlayer without holding the lock due to the midlayer re-claiming ownership through an abort (which will be handled by a future patch in this series). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Check against unexpected completionsHans de Goede
The status urb should not complete before the command has been submitted, nor should we get a second status urb for the same tag after a IU_ID_STATUS. Data urbs should not complete before the command has been submitted, but may complete after the IU_ID_STATUS. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Do not use scsi_host_find_tagHans de Goede
Using scsi_host_find_tag with tags returned by the device is unsafe for multiple reasons: 1) It returns tags->rqs[tag], which may be non NULL even when the cmnd is not owned by us 2) It returns tags->rqs[tag], without holding any locks protecting it 3) It returns tags->rqs[tag], without doing any boundary checking Instead keep our own list which maps tags -> inflight cmnds. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Add uas_get_tag() helper functionHans de Goede
Factor out the mapping of scsi-tags -> uas-tags/stream-ids to a helper function so that there is a single place where this "magic" happens. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Fix resetting flag handlingHans de Goede
- Make sure we always hold the lock when setting / checking resetting - Check resetting before checking urb->status - Add missing check for resetting to uas_data_cmplt - Add missing check for resetting to uas_do_work Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Remove task-management / abort error handling codeHans de Goede
There are various bug reports about oopses / hangs with the uas driver, which all point to the abort-command and logical-unit-reset (task-management) error handling paths. Getting these right is very hard, there are quite a few corner cases, and testing is almost impossible since under normal operation these code paths are not used at all. Another problem is that there are also some cases where it simply is not clear what to do at all. E.g. over usb-2 multiple outstanding commands share the same endpoint. What if a command gets aborted while its sense urb is half way through completing (so some data has been transfered but not all). Since the urb is not yet complete we don't know if the sense urb is actually for this command, or for one of the other oustanding commands. If it is for one of the other commands and we cancel it, then we end up in an undefined state. But if it is actually for the command we're aborting, and the abort succeeds, then it may never complete... This exact same problem applies to logical unit resets too, if there are multiple luns, then commands outstanding on both luns share the sense endpoint. If there is only a single lun, then doing a logical unit reset is little better then doing a full usb device reset. So summarizing because: 1) abort / lun-reset is very tricky to get right 2) Not being able to test the tricky code, which means it will have bugs 3) This being a code path which under normal operation will never happen, so being slow / sub-optimal here is not really an issue 4) Under error conditions we will still be able to recover through usb device resets. 5) This may be a bit slower in some cases, but this is actually faster in cases where the bridge ship has locked up, which seems to be the most common error case sofar. This commit removes the abort / lun-reset error handling paths, and also the taks-mgmt code since those are the only 2 task-mgmt users. Leaving only the (tested and testable) usb-device-reset error handling path in place. Note I realize that this is somewhat of a big hammer, but currently people are seeing very hard to debug oopses with uas. First let focus on making uas work reliable, then we can later look into adding more fine grained error handling. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Add another ASM1051 usb-id to the uas blacklistHans de Goede
As most ASM1051 based devices, this one has unfixable issues with uas too. Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Add US_FL_NO_ATA_1X quirk for Seagate (0bc2:ab20) drivesHans de Goede
https://bbs.archlinux.org/viewtopic.php?pid=1457492 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Add no-report-opcodes quirkHans de Goede
Besides the ASM1051 (*) needing sdev->no_report_opcodes = 1, it turns out that the JMicron JMS567 also needs it to work properly with uas (usb-storage always sets it). Since some of the scsi devs were not to keen on the idea to outrightly set sdev->no_report_opcodes = 1 for all uas devices, so add a quirk for this, and set it for the JMS567. *) Which has become a non-issue since we've completely blacklisted uas on the ASM1051 for other reasons Cc: stable@vger.kernel.org Reported-and-tested-by: Claudio Bizzarri <claudio.bizzarri@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: Add a quirk for rejecting ATA_12 and ATA_16 commandsHans de Goede
And set this quirk for the Seagate Expansion Desk (0bc2:2312), as that one seems to hang upon receiving an ATA_12 or ATA_16 command. https://bugzilla.kernel.org/show_bug.cgi?id=79511 https://bbs.archlinux.org/viewtopic.php?id=183190 While at it also add missing documentation for the u value for usb-storage quirks. Cc: stable@vger.kernel.org # 3.16, 3.17 Signed-off-by: Hans de Goede <hdegoede@redhat.com> -- Changes in v2: Add documentation for new t and u usb-storage.quirks flags Changes in v3: Fix typo in documentation Changes in v4: Also apply the quirk to (0bc2:3312) Changes in v5: Rebased on 3.17-rc5, drop u documentation, already upstream Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23uas: replace WARN_ON_ONCE() with lockdep_assert_held()Sanjeev Sharma
on some architecture spin_is_locked() always return false in uniprocessor configuration and therefore it would be advise to replace with lockdep_assert_held(). Signed-off-by: Sanjeev Sharma <Sanjeev_Sharma@mentor.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23MAINTAINERS: Add ehci-st.c and ohci-st.c to ARCH/STI architecturePeter Griffin
This patch adds the ehci-st.c and ohci-st.c files for the usb 2.0 & usb1.1 host controller drivers found on stih41x and stih4xx STMicroelectronics SoC's into the STI arch section of the maintainers file. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: host: ohci-st: Add ohci-st devicetree bindings documentationPeter Griffin
This patch documents the device tree bindings required for the ohci on-chip controller found in ST consumer electronics SoC's. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: host: ehci-st: Add ehci-st devicetree bindings documentationPeter Griffin
This patch documents the device tree bindings required for the ehci on-chip controller found in ST consumer electronics SoC's. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: host: ohci-st: Add OHCI driver support for ST STB devicesPeter Griffin
This patch adds the glue code required to ensure the on-chip OHCI controller works on STi consumer electronics SoC's from STMicroelectronics. It mainly manages the setting and enabling of the relevant clocks and manages the reset / power signals to the IP block. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: host: ehci-st: Add EHCI support for ST STB devicesPeter Griffin
This patch adds the glue code required to ensure the on-chip EHCI controller works on STi consumer electronics SoC's from STMicroelectronics. It mainly manages the setting and enabling of the relevant clocks and manages the reset / power signals to the IP block. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23USB: isp1362: Use devm_ioremap_resourceTobias Klauser
Use devm_ioremap_resource to simplify error handling in the probe function and to get rid of some boilerplate in the remove function. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23of: add vendor prefix for ChipideaPeter Chen
Adds chipidea to the list of DT vendor prefixes. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: chipidea: enhance kernel-doc formatPeter Chen
Some kernel-doc style comment are not satisfied for format, fix them. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: chipidea: otg initialization is only needed when the gadget is supportedPeter Chen
We have only needed to enable otg initialization when both of below conditions are satisfied: - The controller is otg capable - The gadget function is enabled If the controller is otg capable, but is host-only configuration, we do not need to access register otgsc and do any otg operations (eg, create otg workqueue). Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23chipidea: usbmisc_imx: Add USB support for VF610 SoCsStefan Agner
This adds Vybrid VF610 SoC support. The IP is very similar to i.MX6, however, the non-core registers are spread in two different register areas. Hence we support multiple instances of the USB misc driver and add the driver instance to the imx_usbmisc_data structure. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23doc: dt-binding: ci-hdrc-imx: add TPL supportPeter Chen
TPL (Targeted Peripheral List) is needed for targets host (OTG and Embedded Hosts) for usb certification and other vendor specific requirements. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: chipidea: add TPL support for targeted hostsPeter Chen
For OTG and Embedded hosts, they may need TPL (Targeted Peripheral List) for usb certification and other vender specific requirements, the platform can tell chipidea core driver if it supports tpl through DT or platform data. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: common: add API to get if the platform supports TPLPeter Chen
The TPL (Targeted Peripheral List) is used for targeted hosts (non-PC hosts), and it can be used at USB OTG & EH certification and some specific products which need white list. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: core: Kconfig: TPL should apply for both OTG and EHPeter Chen
Update configuration for USB_OTG_WHITELIST, any targeted hosts (non PC-hosts) can have TPL (Targered Peripheral List). Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: core: TPL should apply for both OTG and EHPeter Chen
According to On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification, the targeted hosts (non-PC hosts) include both embedded hosts and otg, and each targeted host product defines the set of supported peripherals on a TPL (Targeted Peripheral List). So, TPL should apply for both OTG and embedded host, and the otg support is not a must for embedded host. The TPL support feature will only be effect when CONFIG_USB_OTG_WHITELIST has been chosen and hcd->tpl_support flag is set, it can avoid the enumeration fails problem for the user who chooses CONFIG_USB_OTG_WHITELIST wrongly. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23usb: hcd: add TPL support flagPeter Chen
The targeted hosts (non-PC hosts) need to have TPL (Targeted Peripheral List) for USB OTG & EH certification and other vendor specific requirements. The platform who needs TPL feature should set this flag at usb host controller driver. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23USB: quirks: enable device-qualifier quirk for Elan TouchscreenJohan Hovold
Enable device-qualifier quirk for Elan Touchscreen, which often fails to handle requests for the device_descriptor. Note that the device sometimes do respond properly with a Request Error (three times as USB core retries), but usually fails to respond at all. When this happens any further descriptor requests also fails, for example: [ 1528.688934] usb 2-7: new full-speed USB device number 4 using xhci_hcd [ 1530.945588] usb 2-7: unable to read config index 0 descriptor/start: -71 [ 1530.945592] usb 2-7: can't read configurations, error -71 This has been observed repeating for over a minute before eventual successful enumeration. Reported-by: Drew Von Spreecken <drewvs@gmail.com> Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23USB: core: add device-qualifier quirkJohan Hovold
Add new quirk for devices that cannot handle requests for the device_qualifier descriptor. A USB-2.0 compliant device must respond to requests for the device_qualifier descriptor (even if it's with a request error), but at least one device is known to misbehave after such a request. Suggested-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23Revert "usb: gadget: composite: dequeue cdev->req before free it in ↵Felipe Balbi
composite_dev_cleanup" This reverts commit f2267089ea17fa97b796b1b4247e3f8957655df3. That commit causes more problem than fixes. Firstly, kfree() should be called after usb_ep_dequeue() and secondly, the way things are, we will try to dequeue a request that has already completed much more frequently than one which is pending. Cc: Li Jun <b47624@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Cc: stable <stable@vger.kernel.org> # 3.17 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-22Merge 3.17-rc6 into usb-nextGreg Kroah-Hartman
We want the USB fixes in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-22Merge tag 'usb-serial-3.18-rc1' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for v3.18-rc1 These changes add two new "simple" drivers, while removing the redundant zte_ev driver (PIDs moved to option). Included are also some minor clean ups to the xsens_mt driver, and the enabling of further baud rates for pl2303 devices. Signed-off-by: Johan Hovold <johan@kernel.org>
2014-09-21Linux 3.17-rc6Linus Torvalds
2014-09-21Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Fixes for ARM, the most notable being the fix from Nathan Lynch to fix the state of various registers during execve, to ensure that data can't be leaked between two executables. Fixes from Victor Kamensky for get_user() on big endian platforms, since the addition of 8-byte get_user() support broke these fairly badly. A fix from Sudeep Holla for affinity setting when hotplugging CPU 0. A fix from Stephen Boyd for a perf-induced sleep attempt while atomic. Lastly, a correctness fix for emulation of the SWP instruction on ARMv7+, and a fix for wrong carry handling when updating the translation table base address on LPAE platforms" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8149/1: perf: Don't sleep while atomic when enabling per-cpu interrupts ARM: 8148/1: flush TLS and thumbee register state during exec ARM: 8151/1: add missing exports for asm functions required by get_user macro ARM: 8137/1: fix get_user BE behavior for target variable with size of 8 bytes ARM: 8135/1: Fix in-correct barrier usage in SWP{B} emulation ARM: 8133/1: use irq_set_affinity with force=false when migrating irqs ARM: 8132/1: LPAE: drop wrong carry flag correction after adding TTBR1_OFFSET
2014-09-21Merge tag 'media-v3.17-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "some media bug fixes: - a Kconfig dependency issue - some fixes for af9033/it913x demod to be more reliable and address a performance regression - cx18: fix an oops on devices with tda8290 tuner - two new USB IDs for af9035 - a couple fixes on smapp driver" * tag 'media-v3.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] af9035: new IDs: add support for PCTV 78e and PCTV 79e [media] af9033: feed clock to RF tuner [media] it913x: init tuner on attach [media] af9033: update IT9135 tuner inittabs [media] Kconfig: do not select SPI bus on sub-driver auto-select [media] cx18: fix kernel oops with tda8290 tuner [media] smiapp: Set sub-device owner [media] smiapp: Fix power count handling
2014-09-20Merge tag 'staging-3.17-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO fixes from Greg KH: "Here are some IIO and Staging driver fixes for 3.17-rc6. They are all pretty simple, and resolve reported issues" * tag 'staging-3.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: vt6655: buffer overflow in ioctl iio:magnetometer: bugfix magnetometers gain values iio: adc: at91: don't use the last converted data register iio: adc: xilinx-xadc: assign auxiliary channels address correctly iio: meter: ade7758: Fix indio_dev->trig assignment iio: inv_mpu6050: Fix indio_dev->trig assignment iio: gyro: itg3200: Fix indio_dev->trig assignment iio: st_sensors: Fix indio_dev->trig assignment iio: hid_sensor_hub: Fix indio_dev->trig assignment iio: adc: ad_sigma_delta: Fix indio_dev->trig assignment iio: accel: bma180: Fix indio_dev->trig assignment iio:trigger: modify return value for iio_trigger_get iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name
2014-09-20Merge tag 'usb-3.17-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes / quirks from Greg KH: "Here are some USB and PHY fixes and quirks for 3.17-rc6. Nothing major, just a few things that have been reported" * tag 'usb-3.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter USB: EHCI: unlink QHs even after the controller has stopped phy: spear1340-miphy: fix driver dependencies phy: spear1310-miphy: fix driver dependencies phy: miphy365x: Fix off-by-one error
2014-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds
Pull SCSI target fixes from Nicholas Bellinger: "Here are the target pending fixes for v3.17-rc6. Included are Sagi's long overdue fixes related to iser-target shutdown, along with a couple of fixes from Sebastian related to ALUA Referrals changes that when in during the v3.14 time-frame. Also included are a few iscsi-target fixes, most recently of which where found during Joern's Coverity scanning of target code" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid target: Fix inverted logic in SE_DEV_ALUA_SUPPORT_STATE_STORE target: Fix user data segment multiplier in spc_emulate_evpd_b3() iscsi-target: Ignore ICF_GOT_LAST_DATAOUT during Data-Out ITT lookup Target/iser: Fix initiator_depth and responder_resources Target/iser: Avoid calling rdma_disconnect twice Target/iser: Don't put isert_conn inside disconnected handler Target/iser: Get isert_conn reference once got to connected_handler
2014-09-20Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "A bunch of radeon fixes for oops on module unload, and problems with resetting the dma engine, one nouveau fix for black boxes in rendering on my mbp retina, one sti fix, and a couple of intel fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/nouveau: ltc/gf100-: fix cbc issues on certain boards drm/bochs: add missing drm_connector_register call drm/cirrus: add missing drm_connector_register call drm/radeon: Fix typo 'addr' -> 'entry' in rs400_gart_set_page drm/nouveau/runpm: fix module unload drm/radeon/px: fix module unload vgaswitcheroo: add vga_switcheroo_fini_domain_pm_ops drm/radeon: don't reset dma on r6xx-evergreen init drm/radeon: don't reset sdma on CIK init drm/radeon: don't reset dma on NI/SI init drm/radeon/dpm: fix resume on mullins drm/radeon: Disable HDP flush before every CS again for < r600 drm/radeon: delete unused PTE_* defines drm/i915: Add limited color range readout for HDMI/DP ports on g4x/vlv/chv drm: sti: do not iterate over the info frame array drm/i915: Fix SRC_COPY width on 830/845g
2014-09-20drm/nouveau: ltc/gf100-: fix cbc issues on certain boardsBen Skeggs
A mismatch between FB and LTC's idea of how big a large page is causes issues such as black "holes" in rendering to occur on some boards (those where LTC is configured for 64KiB large pages) when compression is used. Confirmed to fix at least the GK107 MBP. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-20Merge branch 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes single fix for regression on rs4xx/rs690/rs740 * 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: Fix typo 'addr' -> 'entry' in rs400_gart_set_page
2014-09-20drm/bochs: add missing drm_connector_register callGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-20drm/cirrus: add missing drm_connector_register callGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-19usb: dwc2: add T: line to MAINTAINERS showing Felipe's treePaul Zimmerman
Starting with v3.18-rc, patches for dwc2 will go through Felipe's tree. Add a T: line to MAINTAINERS to document this. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19usb: dwc2: handle DMA buffer unmapping sanelyPaul Zimmerman
The driver's handling of DMA buffers for non-aligned transfers was kind of nuts. For IN transfers, it left the URB DMA buffer mapped until the transfer completed, then synced it, copied the data from the bounce buffer, then synced it again. Instead of that, just call usb_hcd_unmap_urb_for_dma() to unmap the buffer before starting the transfer. Then no syncing is required when doing the copy. This should also allow handling of other types of mappings besides just dma_map_single() ones. Also reduce the size of the bounce buffer allocation for Isoc endpoints to 3K, since that's the largest possible transfer size. Tested on Raspberry Pi and Altera SOCFPGA. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19usb: dwc2: clip max_transfer_size to 65535Paul Zimmerman
Clip max_transfer_size to 65535 for host. dwc2_hc_setup_align_buf() allocates coherent buffers with this size, and if it's too large we can exhaust the coherent DMA pool. Tested on Raspberry Pi and Altera SOCFPGA. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19usb: dwc2/gadget: disable clock when it's not neededRobert Baldyga
When device is stopped or suspended clock is not needed so we can disable it for this time. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19usb: dwc2/gadget: assign TX FIFO dynamicallyRobert Baldyga
Because we have not enough memory to have each TX FIFO of size at least 3072 bytes (the maximum single packet size with 3 transactions per microframe), we create four FIFOs of lenght 1024, and four of length 3072 bytes, and assing them to endpoints dynamically according to maxpacket size value of given endpoint. Up to now there were initialized 16 TX FIFOs, but we use only 8 IN endpoints, so we can split available memory for 8 FIFOs to have more memory for each one. It needed to do some small modifications in few places in code, because there was assumption that TX FIFO numbers assigned to endpoints are the same as the endpoint numbers, which is not true since we have dynamic FIFO assigning. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19usb: dwc2/gadget: ensure that all fifos have correct memory buffersMarek Szyprowski
Print warning if FIFOs are configured in such a way that they don't fit into the SPRAM available on the s3c hsotg module. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19usb: dwc2/gadget: hide some not really needed debug messagesMarek Szyprowski
Some DWC2/s3c-hsotg debug messages are really useless for typical user, so hide them behind dev_dbg(). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>