Introduce runtime PM and wakeup interrupt handler for cdns3,
the runtime PM is default off since other cdns3 may not
implement glue layer support for runtime PM.
One typical wakeup event use case is xHCI runtime suspend will clear
USBCMD.RS bit, after that the xHCI will not trigger any interrupts,
so its parent (cdns core device) needs to resume xHCI device when
any (wakeup) events occurs at host port.
When the controller is in low power mode, the lpm flag will be set.
The interrupt triggered later than lpm flag is set considers as
wakeup interrupt and handled at cdns_wakeup_irq. Once the wakeup
occurs, it first disables interrupt to avoid later interrupt
occurrence since the controller is in low power mode at that
time, and access registers may be invalid at that time. At wakeup
handler, it will call pm_request_resume to wakeup xHCI device, and
at runtime resume handler, it will enable interrupt again.
The API platform_suspend is introduced for glue layer to implement
platform specific PM sequence.
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Since we have both USB2 and USB3 PHYs for cdns3 controller, it is
better we have unity APIs to handle both USB2 and USB3's power, it
could simplify code for error handling and further power management
implementation.
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The Broadcom BDC driver did not have a MAINTAINERS entry which made it
escape review from Al and myself, add an entry so the relevant mailing
lists and people are copied.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Make debugging real problems easier by not trying to disable an EP that
was not yet enabled.
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This is a follow-on patch for commit a23be4ed8f ("usb: gadget: aspeed:
improve vhub port irq handling"): for_each_set_bit() is replaced with
simple for() loop because for() loop runs faster on ASPEED BMC.
Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Fix the following sparse warning:
drivers/usb/dwc3/trace.c: note: in included file (through drivers/usb/dwc3/trace.h):
drivers/usb/dwc3/debug.h:374:39: warning: cast to non-scalar
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Add interconnect support in dwc3-qcom driver to vote for bus
bandwidth.
This requires for two different paths - from USB to
DDR. The other is from APPS to USB.
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The UDC NET2272 driver includes <linux/gpio.h> but does not
use any symbols from this file, so drop the include.
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The DPRAM memory from the USB High Speed Device Port (UDPHS) hardware
block was increased. This patch updates the endpoint allocation for sam9x60
to take advantage of this larger memory. At the same time the
constraint to allocate the endpoints in order was lifted. To handle old
and new hardware in the same driver the ep_prealloc was added.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Use 1 bank endpoints for control transfers
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Simplify the endpoint allocation and cleanup the code.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Instead of trying to match every possible compatible use
of_find_matching_node_and_match() and pass the compatible array.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Call dwc2_debugfs_exit() and dwc2_hcd_remove() (if the HCD was enabled
earlier) when usb_add_gadget_udc() has failed. This ensures that the
debugfs entries created by dwc2_debugfs_init() as well as the HCD are
cleaned up in the error path.
Fixes: 207324a321 ("usb: dwc2: Postponed gadget registration to the udc class driver")
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The user may have more information to override the HW parameter to
specify the maximum_speed. However, if the user specifies a
maximum_speed that the controller doesn't support, print out a warning.
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
If the maximum_speed is not specified, default the device speed base on
its HW capability. Don't prematurely check HW capability before
validating the maximum_speed device property. The device property takes
precedence in dwc->maximum_speed.
Fixes: 0e1e5c47f7 ("usb: dwc3: add support for USB 2.0-only core configuration")
Reported-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
According the programming guide (for all DWC3 IPs), when the driver
handles ClearFeature(halt) request, it should issue CLEAR_STALL command
_after_ the END_TRANSFER command completes. The END_TRANSFER command may
take some time to complete. So, delay the ClearFeature(halt) request
control status stage and wait for END_TRANSFER command completion
interrupt. Only after END_TRANSFER command completes that the driver
may issue CLEAR_STALL command.
Cc: stable@vger.kernel.org
Fixes: cb11ea56f3 ("usb: dwc3: gadget: Properly handle ClearFeature(halt)")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The function driver may queue new requests right after halting the
endpoint (i.e. queue new requests while the endpoint is stalled).
There's no restriction preventing it from doing so. However, dwc3
currently drops those requests after CLEAR_STALL. The driver should only
drop started requests. Keep the pending requests in the pending list to
resume and process them after the host issues ClearFeature(Halt) to the
endpoint.
Cc: stable@vger.kernel.org
Fixes: cb11ea56f3 ("usb: dwc3: gadget: Properly handle ClearFeature(halt)")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
rewritten syscall number, from Kees Cook.
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Merge tag 'core_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull syscall tracing fix from Borislav Petkov:
"Fix the seccomp syscall rewriting so that trace and audit see the
rewritten syscall number, from Kees Cook"
* tag 'core_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
core/entry: Report syscall correctly for trace and audit
Zijlstra.
* Make percpu-rwsem operations on the semaphore's ->read_count IRQ-safe
because it can be used in an IRQ context, from Hou Tao.
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Merge tag 'locking_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Borislav Petkov:
"Two fixes from the locking/urgent pile:
- Fix lockdep's detection of "USED" <- "IN-NMI" inversions (Peter
Zijlstra)
- Make percpu-rwsem operations on the semaphore's ->read_count
IRQ-safe because it can be used in an IRQ context (Hou Tao)"
* tag 'locking_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/percpu-rwsem: Use this_cpu_{inc,dec}() for read_count
locking/lockdep: Fix "USED" <- "IN-NMI" inversions
- ensure that the EFI bootloader control module only probes successfully
on systems that support the EFI SetVariable runtime service
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Merge tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Borislav Petkov:
"Ensure that the EFI bootloader control module only probes successfully
on systems that support the EFI SetVariable runtime service"
[ Tag and commit from Ard Biesheuvel, forwarded by Borislav ]
* tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: efibc: check for efivars write capability
* Disable relocation relaxation for the compressed kernel when not built
as -pie as in that case kernels built with clang and linked with LLD
fail to boot due to the linker optimizing some instructions in non-PIE
form; the gory details in the commit message, from Arvind Sankar.
* A fix for the "bad bp value" warning issued by the frame-pointer
unwinder, from Josh Poimboeuf.
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Merge tag 'x86_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- A defconfig fix (Daniel Díaz)
- Disable relocation relaxation for the compressed kernel when not
built as -pie as in that case kernels built with clang and linked
with LLD fail to boot due to the linker optimizing some instructions
in non-PIE form; the gory details in the commit message (Arvind
Sankar)
- A fix for the "bad bp value" warning issued by the frame-pointer
unwinder (Josh Poimboeuf)
* tag 'x86_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/unwind/fp: Fix FP unwinding in ret_from_fork
x86/boot/compressed: Disable relocation relaxation
x86/defconfigs: Explicitly unset CONFIG_64BIT in i386_defconfig
- Fix an original bug in device-mapper table reference counting when
interrogating dax capability in the component device. This bug was
hidden by the following bug.
- Fix device-mapper to use the proper helper (dax_supported() instead of
the leaf helper generic_fsdax_supported()) to determine dax operation
of a stacked block device configuration. The original implementation
is only valid for one level of dax-capable block device stacking. This
bug was discovered while fixing the below regression.
- Fix an infinite recursion regression introduced by broken attempts to
quiet the generic_fsdax_supported() path and make it bail out before
logging "dax capability not found" errors.
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Merge tag 'libnvdimm-fixes-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A handful of fixes to address a string of mistakes in the mechanism
for device-mapper to determine if its component devices are dax
capable.
- Fix an original bug in device-mapper table reference counting when
interrogating dax capability in the component device. This bug was
hidden by the following bug.
- Fix device-mapper to use the proper helper (dax_supported() instead
of the leaf helper generic_fsdax_supported()) to determine dax
operation of a stacked block device configuration. The original
implementation is only valid for one level of dax-capable block
device stacking. This bug was discovered while fixing the below
regression.
- Fix an infinite recursion regression introduced by broken attempts
to quiet the generic_fsdax_supported() path and make it bail out
before logging "dax capability not found" errors"
* tag 'libnvdimm-fixes-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Fix stack overflow when mounting fsdax pmem device
dm: Call proper helper to determine dax support
dm/dax: Fix table reference counts
* A fix for a lockdep issue to avoid an asserting triggering during early boot.
There shouldn't be any incorrect behavior as the system isn't concurrent at
the time.
* The addition of a missing fence when installing early fixmap mappings.
* A corretion to the K210 device tree's interrupt map.
* A fix for M-mode timer handling on the K210.
I know it's a it of an odd time, so if these don't make rc6 it's not a big
deal, but I thought I'd just send it out now rather that waiting as these are
ready to go.
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Merge tag 'riscv-for-linus-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix for a lockdep issue to avoid an asserting triggering during
early boot. There shouldn't be any incorrect behavior as the system
isn't concurrent at the time.
- The addition of a missing fence when installing early fixmap
mappings.
- A corretion to the K210 device tree's interrupt map.
- A fix for M-mode timer handling on the K210.
* tag 'riscv-for-linus-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: Resurrect the MMIO timer implementation for M-mode systems
riscv: Fix Kendryte K210 device tree
riscv: Add sfence.vma after early page table changes
RISC-V: Take text_mutex in ftrace_init_nop()
Here are some small USB and one Thunderbolt driver fixes for 5.9-rc6.
Nothing major at all, just some fixes for reported issues, and a quirk
addition:
- typec fixes
- UAS disconnect fix
- usblp race fix
- ehci-hcd modversions build fix
- ignore wakeup quirk table addition
- thunderbolt DROM read fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are some small USB and one Thunderbolt driver fixes.
Nothing major at all, just some fixes for reported issues, and a quirk
addition:
- typec fixes
- UAS disconnect fix
- usblp race fix
- ehci-hcd modversions build fix
- ignore wakeup quirk table addition
- thunderbolt DROM read fix
All of these have been in linux-next with no reported issues"
* tag 'usb-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usblp: fix race between disconnect() and read()
ehci-hcd: Move include to keep CRC stable
usb: typec: intel_pmc_mux: Handle SCU IPC error conditions
USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook
USB: UAS: fix disconnect by unplugging a hub
usb: typec: ucsi: Prevent mode overrun
usb: typec: ucsi: acpi: Increase command completion timeout value
thunderbolt: Retry DROM read once if parsing fails
Here are some small TTY/Serial and one more fbcon fix for 5.9-rc6
They include:
- serial core locking regression fixes
- new device ids for 8250_pci driver
- fbcon fix for syzbot found issue
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial/fbcon fixes from Greg KH:
"Here are some small tty/serial and one more fbcon fix.
They include:
- serial core locking regression fixes
- new device ids for 8250_pci driver
- fbcon fix for syzbot found issue
All have been in linux-next with no reported issues"
* tag 'tty-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
fbcon: Fix user font detection test at fbcon_resize().
serial: 8250_pci: Add Realtek 816a and 816b
serial: core: fix console port-lock regression
serial: core: fix port-lock initialisation
* The first one completes a previous fix to reset a local structure
containing scanned system data properly so that the driver rescans, as
it should, on a second load.
* The second one addresses a refcount underflow due to not paying
attention to the driver whitelest on unregister.
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Merge tag 'edac_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fixes from Borislav Petkov:
"Two fixes for resulting from CONFIG_DEBUG_TEST_DRIVER_REMOVE=y
experiments:
- complete a previous fix to reset a local structure containing
scanned system data properly so that the driver rescans, as it
should, on a second load.
- address a refcount underflow due to not paying attention to the
driver whitelest on unregister"
* tag 'edac_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/ghes: Check whether the driver is on the safe list correctly
EDAC/ghes: Clear scanned data on unload
- fix qconf warnings and revive help message
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Merge tag 'kbuild-fixes-v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
"Fix qconf warnings and revive help message"
* tag 'kbuild-fixes-v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: qconf: revive help message in the info view
kconfig: qconf: fix incomplete type 'struct gstr' warning
kconfig: qconf: use delete[] instead of delete to free array (again)
