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path: root/drivers/usb/host
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2017-02-10ohci-hub: fix typo in dbg_port macroJelle Martijn Kok1-13/+13
The "dbg_port" macro uses the "outside" parameter (="temp") instead of the parameters (="value") given in the macro. As the macro can look outside its definition this causes no direct problem. Signed-off-by: Jelle Martijn Kok <jmkok@youcom.nl> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08usb: xhci-mtk: make the reference clock optionalChunfeng Yun1-2/+9
Make the reference clock optional for DTS backward compatibility and ignore the error if it does not exist. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: refactor xhci_urb_enqueueMathias Nyman1-56/+37
Use switch instead of several if statements Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: simplify how we store TDs in urb private dataMathias Nyman4-33/+18
Instead of storing a zero length array of td pointers, and then allocate memory both for the td pointer array and the td's, just use a zero length array of actual td's in urb private data. old: struct urb_priv { struct xhci_td *td[0] } new: struct urb_priv { struct xhci_td td[0] } Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: Rename variables related to transfer descritporsMathias Nyman3-14/+14
urb_priv structure has a count on how many TDs the URB contains, and how many of those TD's we have handled. rename: length -> num_tds td_cnt -> num_tds_done No functional changes Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: rename size variable to num_tdsMathias Nyman1-8/+8
No functinal changes. num_tds describes the number of transfer descriptor better than "size" Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: add xhci_virt_device tracerFelipe Balbi4-0/+67
Let's start tracing at least part of an xhci_virt_device lifetime. We might want to extend this tracepoint class later, but for now it already exposes quite a bit of valuable information. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: remove newline from tracerFelipe Balbi1-1/+1
If we add that newline, the output will look like the following: kworker/2:1-42 [002] .... 169.811435: xhci_address_ctx: ctx_64=0, ctx_type=2, ctx_dma=@153fbd000, ctx_va=@ffff880153fbd000 We would rather have that in a single line. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: convert several if() to a single switch statementFelipe Balbi1-4/+6
when getting endpoint type, a switch statement looks better than a series of if () branches. There are no functional changes with this patch, cleanup only. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: add urb_enqueue/dequeue/giveback tracersFelipe Balbi3-0/+76
These three new tracers will help us tie TRBs into URBs by *also* looking into URB lifetime. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: make a generic TRB tracerFelipe Balbi3-23/+375
instead of having a tracer that can only trace command completions, let's promote this tracer so it can trace and decode any TRB. With that, it will be easier to extrapolate the lifetime of any TRB which might help debugging certain issues. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: combine event TRB completion debugging messagesFelipe Balbi1-0/+80
If we just provide a helper to convert completion code to string, we can combine all debugging messages into a single print. [keep the old debug messages, for warn and grep -Mathias] Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: convert to list_for_each_entry_safe()Felipe Balbi1-7/+8
instead of using while(!list_empty()) followed by list_first_entry(), we can actually use list_for_each_entry_safe(). Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: use the trb_to_noop() helper for command trbsMathias Nyman1-10/+2
Remove duplicate code by using trb_to_noop() when handling Aborted commads Based on earlier code by Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: Introduce helper to turn one TRB into a no-opMathias Nyman1-12/+17
Useful for turning both transfer and command trbs into no-ops. Based on earlier code by Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: unconditionally call xhci_unmap_td_bounce_buffer()Felipe Balbi1-6/+3
xhci_unmap_td_bounce_buffer() already checks for a valid td->bounce_seg and bails out early if that's invalid. There's no need to check for this twice. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: check for a valid ring when unmapping bounce bufferFelipe Balbi1-1/+1
This way we can remove checks for valid ring from call sites of xhci_unmap_td_bounce_buffer() Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: remove bogus __releases()/__acquires() annotationFelipe Balbi1-2/+0
handle_tx_event() is not releasing xhci->lock nor reacquiring it, remove the bogus annotation. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: introduce xhci_td_cleanup()Felipe Balbi1-42/+50
By extracting xhci_td_cleanup() from finish_td(), code before clearer and easier to follow. There are no functional changes with this patch. It's merely a cleanup. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: reorder variable definitionsFelipe Balbi1-8/+4
no functional changes. Simple cleanup to make sure variables are ordered in a 'reverse christmas tree' fashion. While at that, also remove an obsolete comment which doesn't apply anymore. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: use slightly better list helpersFelipe Balbi1-9/+10
Replace list_entry() with list_first_entry() and list_for_each() with list_for_each_entry(). This makes the code slightly more readable. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: remove unneded semicolonFelipe Balbi1-1/+1
it does no good, let's remove it. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: simplify irq handler returnFelipe Balbi1-15/+17
Instead of having several return points, let's use a local variable and a single place to return. This makes the code slightly easier to read. [set ret = IRQ_HANDLED in default working case -Mathias] Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: rename completion codes to match specFelipe Balbi4-157/+124
Cleanup only. This patch is a mechaninal rename to make sure our macros for TRB completion codes match what the specification uses to refer to such errors. The idea behind this is that it makes it far easier to grep the specification and match it with implementation. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: print HCIVERSION on debugFelipe Balbi1-2/+0
When calling xhci_dbg_regs() we actually _do_ want to know XHCI's version. This might help figure out why certain problems only happen in some cases. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: change pre-increments to post-incrementsFelipe Balbi3-21/+21
This is a cleanup patch only, no functional changes. The idea is just to make sure for loops look the same all over the driver. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: xhci: remove unnecessary return in xhci_pci_setup()Lu Baolu1-5/+1
Remove the unnecessary return line in xhci_pci_setup(). Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: xhci: use list_is_singular for cmd_listLu Baolu1-3/+4
Use list_is_singular() to check if cmd_list has only one entry. [use list_empty() in queue command instead -Mathias] Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: xhci: avoid unnecessary calculationLu Baolu1-10/+10
No need to calculate remainder and length_field, if there is no data phase of a control transfer. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: xhci: remove unnecessary assignmentLu Baolu1-2/+0
Drop an unnecessary assignment in prepare_transfer(). Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci-plat: enable BROKEN_PED quirk if platform requestedFelipe Balbi1-0/+3
In case 'quirk-broken-port-ped' property is passed in via device property, we should enable the corresponding BROKEN_PED quirk flag for XHCI core. [rogerq@ti.com] Updated code from platform data to device property and added DT binding. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: xhci: add quirk flag for broken PED bitsFelipe Balbi2-0/+9
Some devices from Texas Instruments [1] suffer from a silicon bug where Port Enabled/Disabled bit should not be used to silence an erroneous device. The bug is so that if port is disabled with PED bit, an IRQ for device removal (or attachment) will never fire. Just for the sake of completeness, the actual problem lies with SNPS USB IP and this affects all known versions up to 3.00a. A separate patch will be added to dwc3 to enabled this quirk flag if version is <= 3.00a. [1] - AM572x Silicon Errata http://www.ti.com/lit/er/sprz429j/sprz429j.pdf Section i896— USB xHCI Port Disable Feature Does Not Work Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: Put warning message on a single lineAlexander Stein1-2/+1
This allows someone to grep for the complete warning message as in; xhci-hcd xhci-hcd.0.auto: USB core suspending device not in U0/U1/U2. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: host: xhci: Remove unused 'addr_64' variable in xhci_hcd structureBaolin Wang1-1/+0
Since the 'addr_64' variable as legacy is unused now, then remove it from xhci_hcd structure. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25usb: xhci: remove unnecessary second abort tryLu Baolu1-13/+5
The second try was a workaround for (what we thought was) command ring failing to stop in the first place. But this turns out to be due to the race that we have fixed(see "xhci: Fix race related to abort operation"). With that fix, it is time to remove the second try. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: remove unnecessary check for pending timerMathias Nyman1-2/+1
Checking if the command timeout timer is pending when queueing the first command to the command ring is not really useful, remove it. Suggested-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: detect stop endpoint race using pending timer instead of counter.Mathias Nyman3-18/+11
A counter was used to find out if the stop endpoint completion raced with the stop endpoint timeout timer. This was needed in case the stop ep completion failed to delete the timer as it was running on anoter cpu. The EP_STOP_CMD_PENDING flag was not enough as a new stop endpoint command may be queued between the command completion and timeout function, which would set the flag back. Instead of the separate counter that was used we can detect the race by checking both the STOP_EP_PENDING flag and timer_pending in the timeout function. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: rename EP_HALT_PENDING to EP_STOP_CMD_PENDINGMathias Nyman3-7/+7
We don't want to confuse halted and stalled endpoint states with a flag indicating we are waiting for a stop endpoint command to finish or timeout Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25xhci: simplify if statement to make it more readableMathias Nyman1-1/+2
No functional change, De Morgan !(A && B) = (!A || !B) Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25Merge 4.10-rc5 into usb-nextGreg Kroah-Hartman1-1/+1
We need the USB fixes in here as well to handle future merge issues and dependancies. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-20xhci: remove WARN_ON if dma mask is not set for platform devicesMathias Nyman1-1/+1
The warn on is a bit too much, we will anyway set the dma mask if not set previously. The main reason for this fix is that 4.10-rc1 has a dwc3 change that pass a parent sysdev dev pointer instead of setting the dma mask of its xhci platform device. xhci platform driver can then get more attributes from the sysdev than just the dma mask. The usb core and xhci changes are not yet in 4.10, and a fix like this was preferred instead of taking those big changes this late in the rc-cycle. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-19usb: xhci-mtk: add reference clockChunfeng Yun2-0/+16
usually, the reference clock comes from 26M oscillator directly, but some SoCs are not, add it for compatibility. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-19usb: host: xhci: plat: check hcc_params after add hcdWilliam wu1-3/+3
The commit 4ac53087d6d4 ("usb: xhci: plat: Create both HCDs before adding them") move add hcd to the end of probe, this cause hcc_params uninitiated, because xHCI driver sets hcc_params in xhci_gen_setup() called from usb_add_hcd(). This patch checks the Maximum Primary Stream Array Size in the hcc_params register after add primary hcd. Signed-off-by: William wu <william.wu@rock-chips.com> Acked-by: Roger Quadros <rogerq@ti.com> Cc: stable <stable@vger.kernel.org> # 4.2+ Fixes: 4ac53087d6d4 ("usb: xhci: plat: Create both HCDs before adding them") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-19usb: host: constify dev_pm_ops structuresBhumika Goyal1-1/+1
Declare dev_pm_ops structures as const as they are only stored in the pm field of a device_driver structure. This field is of type const, so dev_pm_ops structures having similar properties can be declared const too. Size details after cross compiling the .o file for powerpc architecture. File size before: text data bss dec hex filename 3183 372 0 3555 de3 drivers/usb/host/ehci-fsl.o File size after: text data bss dec hex filename 3275 280 0 3555 de3 drivers/usb/host/ehci-fsl.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-19usb: host: oxu210hp-hcd: remove unused variableSudip Mukherjee1-2/+0
The variable live was assigned the host controller running status but it was never used or checked after that. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-16Merge 4.10-rc4 into usb-nextGreg Kroah-Hartman2-24/+0
We need the USB fixes in here to make merges easier/possible with the other sub-maintainer USB trees. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-11xhci: fix deadlock at host remove by running watchdog correctlyMathias Nyman2-24/+0
If a URB is killed while the host is removed we can end up in a situation where the hub thread takes the roothub device lock, and waits for the URB to be given back by xhci-hcd, blocking the host remove code. xhci-hcd tries to stop the endpoint and give back the urb, but can't as the host is removed from PCI bus at the same time, preventing the normal way of giving back urb. Instead we need to rely on the stop command timeout function to give back the urb. This xhci_stop_endpoint_command_watchdog() timeout function used a XHCI_STATE_DYING flag to indicate if the timeout function is already running, but later this flag has been taking into use in other places to mark that xhci is dying. Remove checks for XHCI_STATE_DYING in xhci_urb_dequeue. We are still checking that reading from pci state does not return 0xffffffff or that host is not halted before trying to stop the endpoint. This whole area of stopping endpoints, giving back URBs, and the wathdog timeout need rework, this fix focuses on solving a specific deadlock issue that we can then send to stable before any major rework. Cc: <stable@vger.kernel.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-10usb: host: ohci-exynos: Decrese node refcount on exynos_ehci_get_phy() error ↵Krzysztof Kozlowski1-0/+2
paths Returning from for_each_available_child_of_node() loop requires cleaning up node refcount. Error paths lacked it so for example in case of deferred probe, the refcount of phy node was left increased. Fixes: 6d40500ac9b6 ("usb: ehci/ohci-exynos: Fix of_node_put() for child when getting PHYs") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-10usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy() error ↵Krzysztof Kozlowski1-0/+2
paths Returning from for_each_available_child_of_node() loop requires cleaning up node refcount. Error paths lacked it so for example in case of deferred probe, the refcount of phy node was left increased. Fixes: 6d40500ac9b6 ("usb: ehci/ohci-exynos: Fix of_node_put() for child when getting PHYs") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-10usb: make the MTK XHCI driver compile for older MIPS SoCsJohn Crispin1-2/+2
The MIPS based MT7621 shares the same XHCI core as the newer generation of ARM based SoCs. The driver works out of the box and we only need to make it buildable in Kconfig. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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