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The phy utmi width information is already set in hsotg params,
phyif is only used in few places and I don't see any reason to
not use hsotg's params.
Moreover the utmi width was being forced to 16 bits by platform
initialization which doesn't take in account HW configuration.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The function dwc2_hsotg_init is only called once just before calling
dwc2_hsotg_core_init_disconnected which does the same initialization:
setting the usbcfg register with turnaround time, timeout calibration
and phy width.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Makes GHWCFG4_UTMI_PHY_DATA* defines closer to their relative shift and
mask defines to improve readability.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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On the rk3288 USB host-only port (the one that's not the OTG-enabled
port) the PHY can get into a bad state when a wakeup is asserted (not
just a wakeup from full system suspend but also a wakeup from
autosuspend).
We can get the PHY out of its bad state by asserting its "port reset",
but unfortunately that seems to assert a reset onto the USB bus so it
could confuse things if we don't actually deenumerate / reenumerate the
device.
We can also get the PHY out of its bad state by fully resetting it using
the reset from the CRU (clock reset unit), which does a more full
reset. The CRU-based reset appears to actually cause devices on the bus
to be removed and reinserted, which fixes the problem (albeit in a hacky
way).
It's unfortunate that we need to do a full re-enumeration of devices at
wakeup time, but this is better than alternative of letting the bus get
wedged.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The net2280 UDC driver (and also net2272, probably via copy-and-paste)
incorrectly checks the req->zero flag during OUT transfers, after
copying data from the UDC's FIFO into memory. This makes no sense at
all; the "zero" flag indicates that an extra zero-length packet should
be appended to an IN transfer if the length is an even multiple of the
maxpacket size. It has nothing to do with OUT transfers.
In practice this doesn't cause any problems because gadget drivers
never set req->zero for OUT transfers anyway. Still, it is an error
and unnecessary code, so this patch removes the check.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The net2280 driver includes an unnecessary test for an endpoint's
queue being empty. The test is redundant; it sits inside a
conditional block of an "if" statement which already tests the
endpoint's queue.
This patch removes the redundant test.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The dependency to ensure this driver links correctly fails since
it can not be a loadable module:
drivers/usb/phy/phy-fsl-usb.o: In function `fsl_otg_set_peripheral':
phy-fsl-usb.c:(.text+0x2224): undefined reference to `usb_gadget_vbus_disconnect'
Make the option 'tristate' so it can work correctly.
Fixes: 5a8d651a2bde ("usb: gadget: move gadget API functions to udc-core")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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To be able to use the default USB class drivers available in Microsoft
Windows, we need to add OS descriptors to the exported USB gadget to
tell the OS that we are compatible with the built-in drivers.
Copy the OS descriptor support from f_rndis into f_ncm. As a result,
using the WINNCM compatible ID, the UsbNcm driver is loaded on
enumeration without the need for a custom driver or inf file.
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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When connecting a CDC-NCM gadget to an host that uses the NTP-32 mode,
or that relies on the default CRC setting, the current implementation gets
confused, and does not expect the correct signature for its packets.
Fix this, by ensuring that the ndp_sign member in the f_ncm structure
always contain a valid value.
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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When the driver tries to get optional clock, it ignores all errors,
but if only ignores -ENOENT, it will cover some real errors, such as
-EPROBE_DEFER, so use devm_clk_get_optional() to get optional clock.
Cc: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Avoiding switch to L1 state in any stage of control transfers.
Send NYET handshake to LPM token.
Renamed GLPMCFG_LPM_ACCEPT_CTRL_ISOC to GLPMCFG_LPM_REJECT_CTRL_CONTROL
because by setting this bit core reject LPM token.
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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In (e583d9d USB: global suspend and remote wakeup don't mix) we
introduced wakeup_enabled_descendants() as a static function. We'd
like to use this function in USB controller drivers to know if we
should keep the controller on during suspend time, since doing so has
a power impact.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This is an attempt to rehash commit 0cf884e819e0 ("usb: dwc2: add bus
suspend/resume for dwc2") on ToT. That commit was reverted in commit
b0bb9bb6ce01 ("Revert "usb: dwc2: add bus suspend/resume for dwc2"")
because apparently it broke the Altera SOCFPGA.
With all the changes that have happened to dwc2 in the meantime, it's
possible that the Altera SOCFPGA will just magically work with this
change now. ...and it would be good to get bus suspend/resume
implemented.
This change is a forward port of one that's been living in the Chrome
OS 3.14 kernel tree.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Adds support for Amlogic G12A USB Control Glue HW.
The Amlogic G12A SoC Family embeds 2 USB Controllers :
- a DWC3 IP configured as Host for USB2 and USB3
- a DWC2 IP configured as Peripheral USB2 Only
A glue connects these both controllers to 2 USB2 PHYs, and optionnally
to an USB3+PCIE Combo PHY shared with the PCIE controller.
The Glue configures the UTMI 8bit interfaces for the USB2 PHYs, including
routing of the OTG PHY between the DWC3 and DWC2 controllers, and
setups the on-chip OTG mode selection for this PHY.
This drivers supports the on-probe setup of the OTG mode, and manually
via a debugfs interface. The IRQ mode change detect is yet to be added
in a future patchset, mainly due to lack of hardware to validate on.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patchs sets the params for the DWC2 Controller found in the
Amlogic G12A SoC family.
It mainly sets the settings reported incorrect by the driver,
leaving the remaining detected automatically by the driver and
provided by the DT node.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The syzkaller USB fuzzer identified a failure mode in which dummy-hcd
would never give back an unlinked URB. This causes usb_kill_urb() to
hang, leading to WARNINGs and unkillable threads.
In dummy-hcd, all URBs are given back by the dummy_timer() routine as
it scans through the list of pending URBS. Failure to give back URBs
can be caused by failure to start or early exit from the scanning
loop. The code currently has two such pathways: One is triggered when
an unsupported bus transfer speed is encountered, and the other by
exhausting the simulated bandwidth for USB transfers during a frame.
This patch removes those two paths, thereby allowing all unlinked URBs
to be given back in a timely manner. It adds a check for the bus
speed when the gadget first starts running, so that dummy_timer() will
never thereafter encounter an unsupported speed. And it prevents the
loop from exiting as soon as the total bandwidth has been used up (the
scanning loop continues, giving back unlinked URBs as they are found,
but not transferring any more data).
Thanks to Andrey Konovalov for manually running the syzkaller fuzzer
to help track down the source of the bug.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: syzbot+d919b0f29d7b5a4994b9@syzkaller.appspotmail.com
CC: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Keep EXTCON support optional, as some platforms do not need it.
Do the same for USB_DWC3_OMAP while we're at it.
Fixes: 3def4031b3e3f ("usb: dwc3: add EXTCON dependency for qcom")
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The following kernel panic happens due to the io_data buffer gets deallocated
before the async io is completed. Add a check for the case where io_data buffer
should be deallocated by ffs_user_copy_worker.
[ 41.663334] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
[ 41.672099] #PF error: [normal kernel read fault]
[ 41.677356] PGD 20c974067 P4D 20c974067 PUD 20c973067 PMD 0
[ 41.683687] Oops: 0000 [#1] PREEMPT SMP
[ 41.687976] CPU: 1 PID: 7 Comm: kworker/u8:0 Tainted: G U 5.0.0-quilt-2e5dc0ac-00790-gd8c79f2-dirty #2
[ 41.705309] Workqueue: adb ffs_user_copy_worker
[ 41.705316] RIP: 0010:__vunmap+0x2a/0xc0
[ 41.705318] Code: 0f 1f 44 00 00 48 85 ff 0f 84 87 00 00 00 55 f7 c7 ff 0f 00 00 48 89 e5 41 55 41 89 f5 41 54 53 48 89 fb 75 71 e8 56 d7 ff ff <4c> 8b 60 48 4d 85 e4 74 76 48 89 df e8 25 ff ff ff 45 85 ed 74 46
[ 41.705320] RSP: 0018:ffffbc3a40053df0 EFLAGS: 00010286
[ 41.705322] RAX: 0000000000000000 RBX: ffffbc3a406f1000 RCX: 0000000000000000
[ 41.705323] RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00000000ffffffff
[ 41.705324] RBP: ffffbc3a40053e08 R08: 000000000001fb79 R09: 0000000000000037
[ 41.705325] R10: ffffbc3a40053b68 R11: ffffbc3a40053cad R12: fffffffffffffff2
[ 41.705326] R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff
[ 41.705328] FS: 0000000000000000(0000) GS:ffff9e2977a80000(0000) knlGS:0000000000000000
[ 41.705329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 41.705330] CR2: 0000000000000048 CR3: 000000020c994000 CR4: 00000000003406e0
[ 41.705331] Call Trace:
[ 41.705338] vfree+0x50/0xb0
[ 41.705341] ffs_user_copy_worker+0xe9/0x1c0
[ 41.705344] process_one_work+0x19f/0x3e0
[ 41.705348] worker_thread+0x3f/0x3b0
[ 41.829766] kthread+0x12b/0x150
[ 41.833371] ? process_one_work+0x3e0/0x3e0
[ 41.838045] ? kthread_create_worker_on_cpu+0x70/0x70
[ 41.843695] ret_from_fork+0x3a/0x50
[ 41.847689] Modules linked in: hci_uart bluetooth ecdh_generic rfkill_gpio dwc3_pci dwc3 snd_usb_audio mei_me tpm_crb snd_usbmidi_lib xhci_pci xhci_hcd mei tpm snd_hwdep cfg80211 snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_hda_core videobuf2_dma_sg crlmodule
[ 41.876880] CR2: 0000000000000048
[ 41.880584] ---[ end trace 2bc4addff0f2e673 ]---
[ 41.891346] RIP: 0010:__vunmap+0x2a/0xc0
[ 41.895734] Code: 0f 1f 44 00 00 48 85 ff 0f 84 87 00 00 00 55 f7 c7 ff 0f 00 00 48 89 e5 41 55 41 89 f5 41 54 53 48 89 fb 75 71 e8 56 d7 ff ff <4c> 8b 60 48 4d 85 e4 74 76 48 89 df e8 25 ff ff ff 45 85 ed 74 46
[ 41.916740] RSP: 0018:ffffbc3a40053df0 EFLAGS: 00010286
[ 41.922583] RAX: 0000000000000000 RBX: ffffbc3a406f1000 RCX: 0000000000000000
[ 41.930563] RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00000000ffffffff
[ 41.938540] RBP: ffffbc3a40053e08 R08: 000000000001fb79 R09: 0000000000000037
[ 41.946520] R10: ffffbc3a40053b68 R11: ffffbc3a40053cad R12: fffffffffffffff2
[ 41.954502] R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff
[ 41.962482] FS: 0000000000000000(0000) GS:ffff9e2977a80000(0000) knlGS:0000000000000000
[ 41.971536] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 41.977960] CR2: 0000000000000048 CR3: 000000020c994000 CR4: 00000000003406e0
[ 41.985930] Kernel panic - not syncing: Fatal exception
[ 41.991817] Kernel Offset: 0x16000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 42.009525] Rebooting in 10 seconds..
[ 52.014376] ACPI MEMORY or I/O RESET_REG.
Fixes: 772a7a724f69 ("usb: gadget: f_fs: Allow scatter-gather buffers")
Signed-off-by: Fei Yang <fei.yang@intel.com>
Reviewed-by: Manu Gautam <mgautam@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for 5.1-rc3
Here's a fix for a long-standing refcount issue in the mos7720 parport
implementation, and a set of device id updates.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
* tag 'usb-serial-5.1-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add Olicard 600
USB: serial: cp210x: add new device id
USB: serial: mos7720: fix mos_parport refcount imbalance on error path
USB: serial: option: set driver_info for SIM5218 and compatibles
USB: serial: ftdi_sio: add additional NovaTech products
USB: serial: option: add support for Quectel EM12
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v5.1-rc2
One deadlock fix on f_hid. NET2280 got a fix on its dequeue
implementation and a fix for overrun of OUT messages.
DWC3 learned about another Intel product: Comment Lake PCH.
NET2272 got a similar fix to NET2280 on its dequeue implementation.
* tag 'fixes-for-v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
USB: gadget: f_hid: fix deadlock in f_hidg_write()
usb: gadget: net2272: Fix net2272_dequeue()
usb: gadget: net2280: Fix net2280_dequeue()
usb: gadget: net2280: Fix overrun of OUT messages
usb: dwc3: pci: add support for Comet Lake PCH ID
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This is a Qualcomm based device with a QMI function on interface 4.
It is mode switched from 2020:2030 using a standard eject message.
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=2020 ProdID=2031 Rev= 2.32
S: Manufacturer=Mobile Connect
S: Product=Mobile Connect
S: SerialNumber=0123456789ABCDEF
C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=89(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E: Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
Cc: stable@vger.kernel.org
Signed-off-by: Bjørn Mork <bjorn@mork.no>
[ johan: use tabs to align comments in adjacent lines ]
Signed-off-by: Johan Hovold <johan@kernel.org>
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Lorenz Messtechnik has a device that is controlled by the cp210x driver,
so add the device id to the driver. The device id was provided by
Silicon-Labs for the devices from this vendor.
Reported-by: Uli <t9cpu@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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if platform_driver_register fails, cleanup the allocated resource
gracefully.
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When the kernel is compiled with preemption enabled, the URB completion
handler can run in parallel with the work responsible for waking up the
tty layer. If the URB handler sets the EVENT_TTY_WAKEUP bit during the
call to tty_port_tty_wakeup() to signal that there is room for additional
input, it will be cleared at the end of this call. As a result, TX traffic
on the upper layer will be blocked.
This can be seen with a kernel configured with CONFIG_PREEMPT, and a fast
modem connected with PPP running over a USB CDC-ACM port.
Use test_and_clear_bit() instead, which ensures that each wakeup requested
by the URB completion code will trigger a call to tty_port_tty_wakeup().
Fixes: 1aba579f3cf5 cdc-acm: handle read pipe errors
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When EXTCON is a loadable module, mtu3 fails to link as built-in:
drivers/usb/mtu3/mtu3_plat.o: In function `mtu3_probe':
mtu3_plat.c:(.text+0x690): undefined reference to `extcon_get_edev_by_phandle'
Add a Kconfig dependency to force mtu3 also to be a loadable module
if extconn is, but still allow it to be built without extcon.
Fixes: d0ed062a8b75 ("usb: mtu3: dual-role mode support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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of_match_device in usb251xb_probe can fail and returns a NULL pointer.
The patch avoids a potential NULL pointer dereference in this scenario.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some PHYs do not support PHY_MODE_USB_HOST_SS, i.e. USB 3.0 or higher.
Fall back and try the more generic PHY_MODE_USB_HOST if it fails.
Fixes: b97a31348379 ("usb: core: comply to PHY framework")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 2f31a67f01a8 ("usb: xhci: Prevent bus suspend if a port connect
change or polling state is detected") was intended to prevent ports that
were still link training from being forced to U3 suspend state mid
enumeration.
This solved enumeration issues for devices with slow link training.
Turns out some devices are stuck in the link training/polling state,
and thus that patch will prevent suspend completely for these devices.
This is seen with USB3 card readers in some MacBooks.
Instead of preventing suspend, give some time to complete the link
training. On successful training the port will end up as connected
and enabled.
If port instead is stuck in link training the bus suspend will continue
suspending after 360ms (10 * 36ms) timeout (tPollingLFPSTimeout).
Original patch was sent to stable, this one should go there as well
Fixes: 2f31a67f01a8 ("usb: xhci: Prevent bus suspend if a port connect change or polling state is detected")
Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The xhci debug capability (DbC) feature did its memory cleanup with
spinlock held. dma_free_coherent() warns if called with interrupts
disabled
move the memory cleanup outside the spinlock
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A suspended SS port in U3 link state will go to U0 when resumed, but
can almost immediately after that enter U1 or U2 link power save
states before host controller driver reads the port status.
Host controller driver only checks for U0 state, and might miss
the finished resume, leaving flags unclear and skip notifying usb
code of the wake.
Add U1 and U2 to the possible link states when checking for finished
port resume.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The write_parport_reg_nonblock() helper takes a reference to the struct
mos_parport, but failed to release it in a couple of error paths after
allocation failures, leading to a memory leak.
Johan said that move the kref_get() and mos_parport assignment to the
end of urbtrack initialisation is a better way, so move it. and
mos_parport do not used until urbtrack initialisation.
Signed-off-by: Lin Yi <teroincn@163.com>
Fixes: b69578df7e98 ("USB: usbserial: mos7720: add support for parallel port on moschip 7715")
Cc: stable <stable@vger.kernel.org> # 2.6.35
Signed-off-by: Johan Hovold <johan@kernel.org>
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In f_hidg_write() the write_spinlock is acquired before calling
usb_ep_queue() which causes a deadlock when dummy_hcd is being used.
This is because dummy_queue() callbacks into f_hidg_req_complete() which
tries to acquire the same spinlock. This is (part of) the backtrace when
the deadlock occurs:
0xffffffffc06b1410 in f_hidg_req_complete
0xffffffffc06a590a in usb_gadget_giveback_request
0xffffffffc06cfff2 in dummy_queue
0xffffffffc06a4b96 in usb_ep_queue
0xffffffffc06b1eb6 in f_hidg_write
0xffffffff8127730b in __vfs_write
0xffffffff812774d1 in vfs_write
0xffffffff81277725 in SYSC_write
Fix this by releasing the write_spinlock before calling usb_ep_queue()
Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: stable@vger.kernel.org # 4.11+
Fixes: 749494b6bdbb ("usb: gadget: f_hid: fix: Move IN request allocation to set_alt()")
Signed-off-by: Radoslav Gerganov <rgerganov@vmware.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Restore the status of ep->stopped in function net2272_dequeue().
When the given request is not found in the endpoint queue
the function returns -EINVAL without restoring the state of
ep->stopped. Thus the endpoint keeps blocked and does not transfer
any data anymore.
This fix is only compile-tested, since we do not have a
corresponding hardware. An analogous fix was tested in the sibling
driver. See "usb: gadget: net2280: Fix net2280_dequeue()"
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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When a request must be dequeued with net2280_dequeue() e.g. due
to a device clear action and the same request is finished by the
function scan_dma_completions() then the function net2280_dequeue()
does not find the request in the following search loop and
returns the error -EINVAL without restoring the status ep->stopped.
Thus the endpoint keeps blocked and does not receive any data
anymore.
This fix restores the status and does not issue an error message.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The OUT endpoint normally blocks (NAK) subsequent packets when a
short packet was received and returns an incomplete queue entry to
the gadget driver. Thereby the gadget driver can detect a short packet
when reading queue entries with a length that is not equal to a
multiple of packet size.
The start_queue() function enables receiving OUT packets regardless of
the content of the OUT FIFO. This results in a race: With the current
code, it's possible that the "!ep->is_in && (readl(&ep->regs->ep_stat)
& BIT(NAK_OUT_PACKETS))" test in start_dma() will fail, then a short
packet will be received, and then start_queue() will call
stop_out_naking(). That's what we don't want (OUT naking gets turned
off while there is data in the FIFO) because then the next driver
request might receive a mixture of old and new packets.
With the patch, this race can't occur because the FIFO's state is
tested after we know that OUT naking is already turned on, and OUT
naking is stopped only when both of the conditions are met. This
ensures that all received data is delivered to the gadget driver,
which can detect a short packet now before new packets are appended
to the last short packet.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch simply adds a new PCI Device ID
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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There is no need to compare *port* with >= 0 because such comparison
of an unsigned value is always true.
Fix this by removing such comparison.
Addresses-Coverity-ID: 1443949 ("Unsigned compared against 0")
Fixes: 02a50b875046 ("usb: usb251xb: add usb data lane port swap feature")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are cases where multiple device tree nodes point to the
same phy node by means of the "phys" property, but we should
only consider those nodes that are marked as available rather
than just any node.
Fixes: 98bfb3946695 ("usb: of: add an api to get dr_mode by the phy node")
Cc: stable@vger.kernel.org # v4.4+
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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PD 2.0 sinks are supposed to accept src-capabilities with a 3.0 header and
simply ignore any src PDOs which the sink does not understand such as PPS
but some 2.0 sinks instead ignore the entire PD_DATA_SOURCE_CAP message,
causing contract negotiation to fail.
This commit fixes such sinks not working by re-trying the contract
negotiation with PD-2.0 source-caps messages if we don't have a contract
after PD_N_HARD_RESET_COUNT hard-reset attempts.
The problem fixed by this commit was noticed with a Type-C to VGA dongle.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When plugging BUFFALO LUA4-U3-AGT USB3.0 to Gigabit Ethernet LAN
Adapter, warning messages filled up dmesg.
[ 101.098287] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk?
[ 101.117463] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk?
[ 101.136513] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk?
Adding the XHCI_TRUST_TX_LENGTH quirk resolves the issue.
Signed-off-by: Yasushi Asano <yasano@jp.adit-jv.com>
Signed-off-by: Spyridon Papageorgiou <spapageorgiou@de.adit-jv.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently there is no check on platform_get_irq() return value
in case it fails, hence never actually reporting any errors and
causing unexpected behavior when using such value as argument
for function regmap_irq_get_virq().
Fix this by adding a proper check, a message error and return
*irq* in case platform_get_irq() fails.
Addresses-Coverity-ID: 1443899 ("Improper use of negative value")
Fixes: d2061f9cc32d ("usb: typec: add driver for Intel Whiskey Cove PMIC USB Type-C PHY")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The SIMCom SIM5218 and compatible devices have 5 USB interfaces, only 4
of which are serial ports. The fifth is a network interface supported
by the qmi-wwan driver. Furthermore, the serial ports do not support
modem control signals. Add driver_info flags to reflect this.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Fixes: ec0cd94d881c ("usb: option: add SIMCom SIM5218")
Cc: stable <stable@vger.kernel.org> # 3.2
Signed-off-by: Johan Hovold <johan@kernel.org>
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Add PIDs for the NovaTech OrionLX+ and Orion I/O so they can be
automatically detected.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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The Quectel EM12 is a Cat. 12 LTE modem. It behaves in the exactly the
same way as the EP06 (including the dynamic configuration behavior), so
the same checks on reserved interfaces, etc. are needed.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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As all the memblock allocation functions return NULL in case of error
rather than panic(), the duplicates with _nopanic suffix can be removed.
Link: http://lkml.kernel.org/r/1548057848-15136-22-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Petr Mladek <pmladek@suse.com> [printk]
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Guo Ren <ren_guo@c-sky.com> [c-sky]
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Juergen Gross <jgross@suse.com> [Xen]
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull DMA mapping updates from Christoph Hellwig:
- add debugfs support for dumping dma-debug information (Corentin
Labbe)
- Kconfig cleanups (Andy Shevchenko and me)
- debugfs cleanups (Greg Kroah-Hartman)
- improve dma_map_resource and use it in the media code
- arch_setup_dma_ops / arch_teardown_dma_ops cleanups
- various small cleanups and improvements for the per-device coherent
allocator
- make the DMA mask an upper bound and don't fail "too large" dma mask
in the remaning two architectures - this will allow big driver
cleanups in the following merge windows
* tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping: (21 commits)
Documentation/DMA-API-HOWTO: update dma_mask sections
sparc64/pci_sun4v: allow large DMA masks
sparc64/iommu: allow large DMA masks
sparc64: refactor the ali DMA quirk
ccio: allow large DMA masks
dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag
dma-mapping: remove dma_mark_declared_memory_occupied
dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig
dma-mapping: improve selection of dma_declare_coherent availability
dma-mapping: remove an incorrect __iommem annotation
of: select OF_RESERVED_MEM automatically
device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT
mfd/sm501: depend on HAS_DMA
dma-mapping: add a kconfig symbol for arch_teardown_dma_ops availability
dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability
dma-mapping: move debug configuration options to kernel/dma
dma-debug: add dumping facility via debugfs
dma: debug: no need to check return value of debugfs_create functions
videobuf2: replace a layering violation with dma_map_resource
dma-mapping: don't BUG when calling dma_map_resource on RAM
...
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Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
hisi_sas, target/iscsi and target/core.
Additionally Christoph refactored gdth as part of the dma changes. The
major mid-layer change this time is the removal of bidi commands and
with them the whole of the osd/exofs driver and filesystem. This is a
major simplification for block and mq in particular"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits)
scsi: cxgb4i: validate tcp sequence number only if chip version <= T5
scsi: cxgb4i: get pf number from lldi->pf
scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
scsi: mpt3sas: Add missing breaks in switch statements
scsi: aacraid: Fix missing break in switch statement
scsi: kill command serial number
scsi: csiostor: drop serial_number usage
scsi: mvumi: use request tag instead of serial_number
scsi: dpt_i2o: remove serial number usage
scsi: st: osst: Remove negative constant left-shifts
scsi: ufs-bsg: Allow reading descriptors
scsi: ufs: Allow reading descriptor via raw upiu
scsi: ufs-bsg: Change the calling convention for write descriptor
scsi: ufs: Remove unused device quirks
Revert "scsi: ufs: disable vccq if it's not needed by UFS device"
scsi: megaraid_sas: Remove a bunch of set but not used variables
scsi: clean obsolete return values of eh_timed_out
scsi: sd: Optimal I/O size should be a multiple of physical block size
scsi: MAINTAINERS: SCSI initiator and target tweaks
scsi: fcoe: make use of fip_mode enum complete
...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- Use match_string() instead of reimplementing it (Andy Shevchenko)
- Enable SERR# forwarding for all bridges (Bharat Kumar Gogada)
- Use Latency Tolerance Reporting if already enabled by platform (Bjorn
Helgaas)
- Save/restore LTR info for suspend/resume (Bjorn Helgaas)
- Fix DPC use of uninitialized data (Dongdong Liu)
- Probe bridge window attributes only once at enumeration-time to fix
device accesses during rescan (Bjorn Helgaas)
- Return BAR size (not "size -1 ") from pci_size() to simplify code (Du
Changbin)
- Use config header type (not class code) identify bridges more
reliably (Honghui Zhang)
- Work around Intel Denverton incorrect Trace Hub BAR size reporting
(Alexander Shishkin)
- Reorder pciehp cached state/hardware state updates to avoid missed
interrupts (Mika Westerberg)
- Turn ibmphp semaphores into completions or mutexes (Arnd Bergmann)
- Mark expected switch fall-through (Mathieu Malaterre)
- Use of_node_name_eq() for node name comparisons (Rob Herring)
- Add ACS and pciehp quirks for HXT SD4800 (Shunyong Yang)
- Consolidate Rohm Vendor ID definitions (Andy Shevchenko)
- Use u32 (not __u32) for things not exposed to userspace (Logan
Gunthorpe)
- Fix locking semantics of bus and slot reset interfaces (Alex
Williamson)
- Update PCIEPORTBUS Kconfig help text (Hou Zhiqiang)
- Allow portdrv to claim subtractive decode Ports so PCIe services will
work for them (Honghui Zhang)
- Report PCIe links that become degraded at run-time (Alexandru
Gagniuc)
- Blacklist Gigabyte X299 Root Port power management to fix Thunderbolt
hotplug (Mika Westerberg)
- Revert runtime PM suspend/resume callbacks that broke PME on network
cable plug (Mika Westerberg)
- Disable Data Link State Changed interrupts to prevent wakeup
immediately after suspend (Mika Westerberg)
- Extend altera to support Stratix 10 (Ley Foon Tan)
- Allow building altera driver on ARM64 (Ley Foon Tan)
- Replace Douglas with Tom Joseph as Cadence PCI host/endpoint
maintainer (Lorenzo Pieralisi)
- Add DT support for R-Car RZ/G2E (R8A774C0) (Fabrizio Castro)
- Add dra72x/dra74x/dra76x SoC compatible strings (Kishon Vijay Abraham I)
- Enable x2 mode support for dra72x/dra74x/dra76x SoC (Kishon Vijay
Abraham I)
- Configure dra7xx PHY to PCIe mode (Kishon Vijay Abraham I)
- Simplify dwc (remove unnecessary header includes, name variables
consistently, reduce inverted logic, etc) (Gustavo Pimentel)
- Add i.MX8MQ support (Andrey Smirnov)
- Add message to help debug dwc MSI-X mask bit errors (Gustavo
Pimentel)
- Work around imx7d PCIe PLL erratum (Trent Piepho)
- Don't assert qcom reset GPIO during probe (Bjorn Andersson)
- Skip dwc MSI init if MSIs have been disabled (Lucas Stach)
- Use memcpy_fromio()/memcpy_toio() instead of plain memcpy() in PCI
endpoint framework (Wen Yang)
- Add interface to discover supported endpoint features to replace a
bitfield that wasn't flexible enough (Kishon Vijay Abraham I)
- Implement the new supported-feature interface for designware-plat,
dra7xx, rockchip, cadence (Kishon Vijay Abraham I)
- Fix issues with 64-bit BAR in endpoints (Kishon Vijay Abraham I)
- Add layerscape endpoint mode support (Xiaowei Bao)
- Remove duplicate struct hv_vp_set in favor of struct hv_vpset (Maya
Nakamura)
- Rework hv_irq_unmask() to use cpumask_to_vpset() instead of
open-coded reimplementation (Maya Nakamura)
- Align Hyper-V struct retarget_msi_interrupt arguments (Maya Nakamura)
- Fix mediatek MMIO size computation to enable full size of available
MMIO space (Honghui Zhang)
- Fix mediatek DMA window size computation to allow endpoint DMA access
to full DRAM address range (Honghui Zhang)
- Fix mvebu prefetchable BAR regression caused by common bridge
emulation that assumed all bridges had prefetchable windows (Thomas
Petazzoni)
- Make advk_pci_bridge_emul_ops static (Wei Yongjun)
- Configure MPS settings for VMD root ports (Jon Derrick)
* tag 'pci-v5.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits)
PCI: Update PCIEPORTBUS Kconfig help text
PCI: Fix "try" semantics of bus and slot reset
PCI/LINK: Report degraded links via link bandwidth notification
dt-bindings: PCI: altera: Add altr,pcie-root-port-2.0
PCI: altera: Enable driver on ARM64
PCI: altera: Add Stratix 10 PCIe support
PCI/PME: Fix possible use-after-free on remove
PCI: aardvark: Make symbol 'advk_pci_bridge_emul_ops' static
PCI: dwc: skip MSI init if MSIs have been explicitly disabled
PCI: hv: Refactor hv_irq_unmask() to use cpumask_to_vpset()
PCI: hv: Replace hv_vp_set with hv_vpset
PCI: hv: Add __aligned(8) to struct retarget_msi_interrupt
PCI: mediatek: Enlarge PCIe2AHB window size to support 4GB DRAM
PCI: mediatek: Fix memory mapped IO range size computation
PCI: dwc: Remove superfluous shifting in definitions
PCI: dwc: Make use of GENMASK/FIELD_PREP
PCI: dwc: Make use of BIT() in constant definitions
PCI: dwc: Share code for dw_pcie_rd/wr_other_conf()
PCI: dwc: Make use of IS_ALIGNED()
PCI: imx6: Add code to request/control "pcie_aux" clock for i.MX8MQ
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
"Here is the big USB/PHY driver pull request for 5.1-rc1.
The usual set of gadget driver updates, phy driver updates, xhci
updates, and typec additions. Also included in here are a lot of small
cleanups and fixes and driver updates where needed.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (167 commits)
wusb: Remove unnecessary static function ckhdid_printf
usb: core: make default autosuspend delay configurable
usb: core: Fix typo in description of "authorized_default"
usb: chipidea: Refactor USB PHY selection and keep a single PHY
usb: chipidea: Grab the (legacy) USB PHY by phandle first
usb: chipidea: imx: set power polarity
dt-bindings: usb: ci-hdrc-usb2: add property power-active-high
usb: chipidea: imx: remove unused header files
usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
usb: core: add option of only authorizing internal devices
usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
usb: xhci: Fix for Enabling USB ROLE SWITCH QUIRK on INTEL_SUNRISEPOINT_LP_XHCI
usb: xhci: fix build warning - missing prototype
usb: xhci: dbc: Fixing typo error.
usb: xhci: remove unused member 'parent' in xhci_regset struct
xhci: tegra: Prevent error pointer dereference
USB: serial: option: add Telit ME910 ECM composition
usb: core: Replace hardcoded check with inline function from usb.h
usb: core: skip interfaces disabled in devicetree
usb: typec: mux: remove redundant check on variable match
...
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Pull ARM SoC platform updates from Arnd Bergmann:
"The APM X-Gene platform is now maintained by folks from Ampere
computing that took over the product line a while ago, this gets
reflected in the MAINTAINERS file.
Cleanups continue on the older mach-davinci and mach-pxa platform, to
get them to be more like the modern ones. For pxa, we now remove the
Raumfeld platform code as it now works with device tree based booting.
i.MX adds a couple new features for the i.MX7ULP SoC
Mediatek gains support for a new SoC: MT7629 is a new wireless router
platform, following MT7623.
Aside from those, there are the usual minor cleanups and bugfixes
across several platforms"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (49 commits)
MAINTAINERS: Update Ampere email address
usb: ohci-da8xx: remove unused callbacks from platform data
ARM: davinci: da830-evm: remove legacy usb helpers
ARM: davinci: omapl138-hawk: remove legacy usb helpers
usb: ohci-da8xx: add vbus and overcurrent gpios
ARM: davinci: da830-evm: use gpio lookup entries for usb gpios
ARM: davinci: omapl138-hawk: use gpio lookup entries for usb gpios
usb: ohci-da8xx: add a helper pointer to &pdev->dev
usb: ohci-da8xx: add a new line |