History log of /linux/drivers/pci/pwrctrl/Kconfig (Results 1 – 25 of 63)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
Revision tags: v7.1-rc2
# 0fc8f620 27-Apr-2026 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Getting fixes and updates from v7.1-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v7.1-rc1
# f4b369c6 20-Apr-2026 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 7.1 merge window.


Revision tags: v7.0, v7.0-rc7, v7.0-rc6, v7.0-rc5, v7.0-rc4
# 0421ccdf 12-Mar-2026 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v7.0-rc3' into next

Sync up with the mainline to brig up the latest changes, specifically
changes to ALPS driver.


# 3e9e952b 20-Apr-2026 Petr Mladek <pmladek@suse.com>

Merge branch 'for-7.1-printf-kunit-build' into for-linus


# 40286d63 15-Apr-2026 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:

- Allow TLP Processing Hints to be enabled for RCiEPs (G

Merge tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:

- Allow TLP Processing Hints to be enabled for RCiEPs (George Abraham
P)

- Enable AtomicOps only if we know the Root Port supports them (Gerd
Bayer)

- Don't enable AtomicOps for RCiEPs since none of them need Atomic
Ops and we can't tell whether the Root Complex would support them
(Gerd Bayer)

- Leave Precision Time Measurement disabled until a driver enables it
to avoid PCIe errors (Mika Westerberg)

- Make pci_set_vga_state() fail if bridge doesn't support VGA
routing, i.e., PCI_BRIDGE_CTL_VGA is not writable, and return
errors to vga_get() callers including userspace via
/dev/vga_arbiter (Simon Richter)

- Validate max-link-speed from DT in j721e, brcmstb, mediatek-gen3,
rzg3s drivers (where the actual controller constraints are known),
and remove validation from the generic OF DT accessor (Hans Zhang)

- Remove pc110pad driver (no longer useful after 486 CPU support
removed) and no_pci_devices() (pc110pad was the last user) (Dmitry
Torokhov, Heiner Kallweit)

Resource management:

- Prevent assigning space to unimplemented bridge windows; previously
we mistakenly assumed prefetchable window existed and assigned
space and put a BAR there (Ahmed Naseef)

- Avoid shrinking bridge windows to fit in the initial Root Port
window; fixes one problem with devices with large BARs connected
via switches, e.g., Thunderbolt (Ilpo Järvinen)

- Pass full extent of empty space, not just the aligned space, to
resource_alignf callback so free space before the requested
alignment can be used (Ilpo Järvinen)

- Place small resources before larger ones for better utilization of
address space (Ilpo Järvinen)

- Fix alignment calculation for resource size larger than align,
e.g., bridge windows larger than the 1MB required alignment (Ilpo
Järvinen)

Reset:

- Update slot handling so all ARI functions are treated as being in
the same slot. They're all reset by Secondary Bus Reset, but
previously drivers of ARI functions that appeared to be on a
non-zero device weren't notified and fatal hardware errors could
result (Keith Busch)

- Make sysfs reset_subordinate hotplug safe to avoid spurious hotplug
events (Keith Busch)

- Hide Secondary Bus Reset ('bus') from sysfs reset_methods if masked
by CXL because it has no effect (Vidya Sagar)

- Avoid FLR for AMD NPU device, where it causes the device to hang
(Lizhi Hou)

Error handling:

- Clear only error bits in PCIe Device Status to avoid accidentally
clearing Emergency Power Reduction Detected (Shuai Xue)

- Check for AER errors even in devices without drivers (Lukas Wunner)

- Initialize ratelimit info so DPC and EDR paths log AER error
information (Kuppuswamy Sathyanarayanan)

Power control:

- Add UPD720201/UPD720202 USB 3.0 xHCI Host Controller .compatible so
generic pwrctrl driver can control it (Neil Armstrong)

Hotplug:

- Set LED_HW_PLUGGABLE for NPEM hotplug-capable ports so LED core
doesn't complain when setting brightness fails because the endpoint
is gone (Richard Cheng)

Peer-to-peer DMA:

- Allow wildcards in list of host bridges that support peer-to-peer
DMA between hierarchy domains and add all Google SoCs (Jacob
Moroni)

Endpoint framework:

- Advertise dynamic inbound mapping support in pci-epf-test and
update host pci_endpoint_test to skip doorbell testing if not
advertised by endpoint (Koichiro Den)

- Return 0, not remaining timeout, when MHI eDMA ops complete so
mhi_ep_ring_add_element() doesn't interpret non-zero as failure
(Daniel Hodges)

- Remove vntb and ntb duplicate resource teardown that leads to oops
when .allow_link() fails or .drop_link() is called (Koichiro Den)

- Disable vntb delayed work before clearing BAR mappings and
doorbells to avoid oops caused by doing the work after resources
have been torn down (Koichiro Den)

- Add a way to describe reserved subregions within BARs, e.g.,
platform-owned fixed register windows, and use it for the RK3588
BAR4 DMA ctrl window (Koichiro Den)

- Add BAR_DISABLED for BARs that will never be available to an EPF
driver, and change some BAR_RESERVED annotations to BAR_DISABLED
(Niklas Cassel)

- Add NTB .get_dma_dev() callback for cases where DMA API requires a
different device, e.g., vNTB devices (Koichiro Den)

- Add reserved region types for MSI-X Table and PBA so Endpoint
controllers can them as describe hardware-owned regions in a
BAR_RESERVED BAR (Manikanta Maddireddy)

- Make Tegra194/234 BAR0 programmable and remove 1MB size limit
(Manikanta Maddireddy)

- Expose Tegra BAR2 (MSI-X) and BAR4 (DMA) as 64-bit BAR_RESERVED
(Manikanta Maddireddy)

- Add Tegra194 and Tegra234 device table entries to pci_endpoint_test
(Manikanta Maddireddy)

- Skip the BAR subrange selftest if there are not enough inbound
window resources to run the test (Christian Bruel)

New native PCIe controller drivers:

- Add DT binding and driver for Andes QiLai SoC PCIe host controller
(Randolph Lin)

- Add DT binding and driver for ESWIN PCIe Root Complex (Senchuan
Zhang)

Baikal T-1 PCIe controller driver:

- Remove driver since it never quite became usable (Andy Shevchenko)

Cadence PCIe controller driver:

- Implement byte/word config reads with dword (32-bit) reads because
some Cadence controllers don't support sub-dword accesses (Aksh
Garg)

CIX Sky1 PCIe controller driver:

- Add 'power-domains' to DT binding for SCMI power domain (Gary Yang)

Freescale i.MX6 PCIe controller driver:

- Add i.MX94 and i.MX943 to fsl,imx6q-pcie-ep DT binding (Richard
Zhu)

- Delay instead of polling for L2/L3 Ready after PME_Turn_off when
suspending i.MX6SX because LTSSM registers are inaccessible
(Richard Zhu)

- Separate PERST# assertion (for resetting endpoints) from core reset
(for resetting the RC itself) to prepare for new DTs with PERST#
GPIO in per-Root Port nodes (Sherry Sun)

- Retain Root Port MSI capability on i.MX7D, i.MX8MM, and i.MX8MQ so
MSI from downstream devices will work (Richard Zhu)

- Fix i.MX95 reference clock source selection when internal refclk is
used (Franz Schnyder)

Freescale Layerscape PCIe controller driver:

- Allow building as a removable module (Sascha Hauer)

MediaTek PCIe Gen3 controller driver:

- Use dev_err_probe() to simplify error paths and make deferred probe
messages visible in /sys/kernel/debug/devices_deferred (Chen-Yu
Tsai)

- Power off device if setup fails (Chen-Yu Tsai)

- Integrate new pwrctrl API to enable power control for WiFi/BT
adapters on mainboard or in PCIe or M.2 slots (Chen-Yu Tsai)

NVIDIA Tegra194 PCIe controller driver:

- Poll less aggressively and non-atomically for PME_TO_Ack during
transition to L2 (Vidya Sagar)

- Disable LTSSM after transition to Detect on surprise link down to
stop toggling between Polling and Detect (Manikanta Maddireddy)

- Don't force the device into the D0 state before L2 when suspending
or shutting down the controller (Vidya Sagar)

- Disable PERST# IRQ only in Endpoint mode because it's not
registered in Root Port mode (Manikanta Maddireddy)

- Handle 'nvidia,refclk-select' as optional (Vidya Sagar)

- Disable direct speed change in Endpoint mode so link speed change
is controlled by the host (Vidya Sagar)

- Set LTR values before link up to avoid bogus LTR messages with 0
latency (Vidya Sagar)

- Allow system suspend when the Endpoint link is down (Vidya Sagar)

- Use DWC IP core version, not Tegra custom values, to avoid DWC core
version check warnings (Manikanta Maddireddy)

- Apply ECRC workaround to devices based on DesignWare 5.00a as well
as 4.90a (Manikanta Maddireddy)

- Disable PM Substate L1.2 in Endpoint mode to work around Tegra234
erratum (Vidya Sagar)

- Delay post-PERST# cleanup until core is powered on to avoid CBB
timeout (Manikanta Maddireddy)

- Assert CLKREQ# so switches that forward it to their downstream side
can bring up those links successfully (Vidya Sagar)

- Calibrate pipe to UPHY for Endpoint mode to reset stale PLL state
from any previous bad link state (Vidya Sagar)

- Remove IRQF_ONESHOT flag from Endpoint interrupt registration so
DMA driver and Endpoint controller driver can share the interrupt
line (Vidya Sagar)

- Enable DMA interrupt to support DMA in both Root Port and Endpoint
modes (Vidya Sagar)

- Enable hardware link retraining after link goes down in Endpoint
mode (Vidya Sagar)

- Add DT binding and driver support for core clock monitoring (Vidya
Sagar)

Qualcomm PCIe controller driver:

- Advertise 'Hot-Plug Capable' and set 'No Command Completed Support'
since Qcom Root Ports support hotplug events like DL_Up/Down and
can accept writes to Slot Control without delays between writes
(Krishna Chaitanya Chundru)

Renesas R-Car PCIe controller driver:

- Mark Endpoint BAR0 and BAR2 as Resizable (Koichiro Den)

- Reduce EPC BAR alignment requirement to 4K (Koichiro Den)

Renesas RZ/G3S PCIe controller driver:

- Add RZ/G3E to DT binding and to driver (John Madieu)

- Assert (not deassert) resets in probe error path (John Madieu)

- Assert resets in suspend path in reverse order they were deasserted
during probe (John Madieu)

- Rework inbound window algorithm to prevent mapping more than
intended region and enforce alignment on size, to prepare for
RZ/G3E support (John Madieu)

Rockchip DesignWare PCIe controller driver:

- Add tracepoints for PCIe controller LTSSM transitions and link rate
changes (Shawn Lin)

- Trace LTSSM events collected by the dw-rockchip debug FIFO (Shawn
Lin)

SOPHGO PCIe controller driver:

- Disable ASPM L0s and L1 on Sophgo 2042 PCIe Root Ports that
advertise support for them (Yao Zi)

Synopsys DesignWare PCIe controller driver:

- Continue with system suspend even if an Endpoint doesn't respond
with PME_TO_Ack message (Manivannan Sadhasivam)

- Set Endpoint MSI-X Table Size in the correct function of a
multi-function device when configuring MSI-X, not in Function 0
(Aksh Garg)

- Set Max Link Width and Max Link Speed for all functions of a
multi-function device, not just Function 0 (Aksh Garg)

- Expose PCIe event counters in groups 5-7 in debugfs (Hans Zhang)

Miscellaneous:

- Warn only once about invalid ACS kernel parameter format (Richard
Cheng)

- Suppress FW_BUG warning when writing sysfs 'numa_node' with the
current value (Li RongQing)

- Drop redundant 'depends on PCI' from Kconfig (Julian Braha)"

* tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (165 commits)
PCI/P2PDMA: Add Google SoCs to the P2P DMA host bridge list
PCI/P2PDMA: Allow wildcard Device IDs in host bridge list
PCI: sg2042: Avoid L0s and L1 on Sophgo 2042 PCIe Root Ports
PCI: cadence: Add flags for disabling ASPM capability for broken Root Ports
PCI: tegra194: Add core monitor clock support
dt-bindings: PCI: tegra194: Add monitor clock support
PCI: tegra194: Enable hardware hot reset mode in Endpoint mode
PCI: tegra194: Enable DMA interrupt
PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration
PCI: tegra194: Calibrate pipe to UPHY for Endpoint mode
PCI: tegra194: Assert CLKREQ# explicitly by default
PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on
PCI: tegra194: Disable L1.2 capability of Tegra234 EP
PCI: dwc: Apply ECRC workaround to DesignWare 5.00a as well
PCI: tegra194: Use DWC IP core version
PCI: tegra194: Free up Endpoint resources during remove()
PCI: tegra194: Allow system suspend when the Endpoint link is not up
PCI: tegra194: Set LTR message request before PCIe link up in Endpoint mode
PCI: tegra194: Disable direct speed change for Endpoint mode
PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"
...

show more ...


# 85d9948d 13-Apr-2026 Bjorn Helgaas <bhelgaas@google.com>

Merge branch 'pci/pwrctrl'

- Rename 'slot' driver to 'generic' since it can handle any device with
individual power control as well as slots (Neil Armstrong)

- Add UPD720201/UPD720202 USB 3.0 xHC

Merge branch 'pci/pwrctrl'

- Rename 'slot' driver to 'generic' since it can handle any device with
individual power control as well as slots (Neil Armstrong)

- Add UPD720201/UPD720202 USB 3.0 xHCI Host Controller .compatible so
generic pwrctrl driver can control it (Neil Armstrong)

* pci/pwrctrl:
PCI/pwrctrl: generic: Add UPD720201/UPD720202 USB 3.0 xHCI Host Controller support
PCI/pwrctrl: generic: Simplify dev_err_probe() usage
PCI/pwrctrl: generic: Rename pci-pwrctrl-slot as generic

show more ...


# ff124bbb 18-Mar-2026 Neil Armstrong <neil.armstrong@linaro.org>

PCI/pwrctrl: generic: Rename pci-pwrctrl-slot as generic

The driver is pretty generic and would fit for either PCI Slots or
endpoints connected to PCI ports, so rename the driver and module as
pci-p

PCI/pwrctrl: generic: Rename pci-pwrctrl-slot as generic

The driver is pretty generic and would fit for either PCI Slots or
endpoints connected to PCI ports, so rename the driver and module as
pci-pwrctrl-generic.

Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260220-topic-sm8650-ayaneo-pocket-s2-base-v5-3-1ad79caa1efa@linaro.org

show more ...


# 42d3b66d 12-Mar-2026 Matthew Brost <matthew.brost@intel.com>

Merge drm/drm-next into drm-xe-next

Backmerging to bring in 7.00-rc3. Important ahead GPU SVM merging THP
support.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>


Revision tags: v7.0-rc3, v7.0-rc2
# f09812b8 25-Feb-2026 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next

Sync with v7.0-rc1 which contains a few treewide changes affecting i915.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>


# 8b85987d 23-Feb-2026 Maxime Ripard <mripard@kernel.org>

Merge drm/drm-next into drm-misc-next

Let's merge 7.0-rc1 to start the new drm-misc-next window

Signed-off-by: Maxime Ripard <mripard@kernel.org>


# c17ee635 23-Feb-2026 Maxime Ripard <mripard@kernel.org>

Merge drm/drm-fixes into drm-misc-fixes

7.0-rc1 was just released, let's merge it to kick the new release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>


Revision tags: v7.0-rc1
# 1c2b4a4c 12-Feb-2026 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v7.0-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Don't try to enable Extended Tags on VFs since that bi

Merge tag 'pci-v7.0-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Don't try to enable Extended Tags on VFs since that bit is Reserved
and causes misleading log messages (Håkon Bugge)

- Initialize Endpoint Read Completion Boundary to match Root Port,
regardless of ACPI _HPX (Håkon Bugge)

- Apply _HPX PCIe Setting Record only to AER configuration, and only
when OS owns PCIe hotplug but not AER, to avoid clobbering Extended
Tag and Relaxed Ordering settings (Håkon Bugge)

Resource management:

- Move CardBus code to setup-cardbus.c and only build it when
CONFIG_CARDBUS is set (Ilpo Järvinen)

- Fix bridge window alignment with optional resources, where
additional alignment requirement was previously lost (Ilpo
Järvinen)

- Stop over-estimating bridge window size since they are now assigned
without any gaps between them (Ilpo Järvinen)

- Increase resource MAX_IORES_LEVEL to avoid /proc/iomem flattening
for nested bridges and endpoints (Ilpo Järvinen)

- Add pbus_mem_size_optional() to handle sizes of optional resources
(SR-IOV VF BARs, expansion ROMs, bridge windows) (Ilpo Järvinen)

- Don't claim disabled bridge windows to avoid spurious claim
failures (Ilpo Järvinen)

Driver binding:

- Fix device reference leak in pcie_port_remove_service() (Uwe
Kleine-König)

- Move pcie_port_bus_match() and pcie_port_bus_type to PCIe-specific
portdrv.c (Uwe Kleine-König)

- Convert portdrv to use pcie_port_bus_type.probe() and .remove()
callbacks so .probe() and .remove() can eventually be removed from
struct device_driver (Uwe Kleine-König)

Error handling:

- Clear stale errors on reporting agents upon probe so they don't
look like recent errors (Lukas Wunner)

- Add generic RAS tracepoint for hotplug events (Shuai Xue)

- Add RAS tracepoint for link speed changes (Shuai Xue)

Power management:

- Avoid redundant delay on transition from D3hot to D3cold if the
device was already in D3hot (Brian Norris)

- Prevent runtime suspend until devices are fully initialized to
avoid saving incompletely configured device state (Brian Norris)

Power control:

- Add power_on/off callbacks with generic signature to pwrseq,
tc9563, and slot drivers so they can be used by pwrctrl core
(Manivannan Sadhasivam)

- Add PCIe M.2 connector support to the slot pwrctrl driver
(Manivannan Sadhasivam)

- Switch to pwrctrl interfaces to create, destroy, and power on/off
devices, calling them from host controller drivers instead of the
PCI core (Manivannan Sadhasivam)

- Drop qcom .assert_perst() callbacks since this is now done by the
controller driver instead of the pwrctrl driver (Manivannan
Sadhasivam)

Virtualization:

- Remove an incorrect unlock in pci_slot_trylock() error handling
(Jinhui Guo)

- Lock the bridge device for slot reset (Keith Busch)

- Enable ACS after IOMMU configuration on OF platforms so ACS is
enabled an all devices; previously the first device enumerated
(typically a Root Port) didn't have ACS enabled (Manivannan
Sadhasivam)

- Disable ACS Source Validation for IDT 0x80b5 and 0x8090 switches to
work around hardware erratum; previously ACS SV was only
temporarily disabled, which worked for enumeration but not after
reset (Manivannan Sadhasivam)

Peer-to-peer DMA:

- Release per-CPU pgmap ref when vm_insert_page() fails to avoid hang
when removing the PCI device (Hou Tao)

- Remove incorrect p2pmem_alloc_mmap() warning about page refcount
(Hou Tao)

Endpoint framework:

- Add configfs sub-groups synchronously to avoid NULL pointer
dereference when racing with removal (Liu Song)

- Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink()
functions (Manikanta Maddireddy)

ASPEED PCIe controller driver:

- Add ASPEED Root Complex DT binding and driver (Jacky Chou)

Freescale i.MX6 PCIe controller driver:

- Add DT binding and driver support for an optional external refclock
in addition to the refclock from the internal PLL (Richard Zhu)

- Fix CLKREQ# control so host asserts it during enumeration and
Endpoints can use it afterwards to exit the L1.2 link state
(Richard Zhu)

NVIDIA Tegra PCIe controller driver:

- Export irq_domain_free_irqs() to allow PCI/MSI drivers that tear
down MSI domains to be built as modules (Aaron Kling)

- Allow pci-tegra to be built as a module (Aaron Kling)

NVIDIA Tegra194 PCIe controller driver:

- Relax Kconfig so tegra194 can be built for platforms beyond
Tegra194 (Vidya Sagar)

Qualcomm PCIe controller driver:

- Merge SC8180x DT binding into SM8150 (Krzysztof Kozlowski)

- Move SDX55, SDM845, QCS404, IPQ5018, IPQ6018, IPQ8074 Gen3,
IPQ8074, IPQ4019, IPQ9574, APQ8064, MSM8996, APQ8084 to dedicated
schema (Krzysztof Kozlowski)

- Add DT binding and driver support for SA8255p Endpoint being
configured by firmware (Mrinmay Sarkar)

- Parse PERST# from all PCIe bridge nodes for future platforms that
will have PERST# in Switch Downstream Ports as well as in Root
Ports (Manivannan Sadhasivam)

Renesas RZ/G3S PCIe controller driver:

- Use pci_generic_config_write() since the writability provided by
the custom wrapper is unnecessary (Claudiu Beznea)

SOPHGO PCIe controller driver:

- Disable ASPM L0s and L1 on Sophgo 2044 PCIe Root Ports (Inochi
Amaoto)

Synopsys DesignWare PCIe controller driver:

- Extend PCI_FIND_NEXT_CAP() and PCI_FIND_NEXT_EXT_CAP() to return a
pointer to the preceding Capability, to allow removal of
Capabilities that are advertised but not fully implemented (Qiang
Yu)

- Remove MSI and MSI-X Capabilities in platforms that can't support
them, so the PCI core automatically falls back to INTx (Qiang Yu)

- Add ASPM L1.1 and L1.2 Substates context to debugfs ltssm_status
for drivers that support this (Shawn Lin)

- Skip PME_Turn_Off broadcast and L2/L3 transition during suspend if
link is not up to avoid an unnecessary timeout (Manivannan
Sadhasivam)

- Revert dw-rockchip, qcom, and DWC core changes that used link-up
IRQs to trigger enumeration instead of waiting for link to be up
because the PCI core doesn't allocate bus number space for
hierarchies that might be attached (Niklas Cassel)

- Make endpoint iATU entry for MSI permanent instead of programming
it dynamically, which is slow and racy with respect to other
concurrent traffic, e.g., eDMA (Koichiro Den)

- Use iMSI-RX MSI target address when possible to fix endpoints using
32-bit MSI (Shawn Lin)

- Allow DWC host controller driver probe to continue if device is not
found or found but inactive; only fail when there's an error with
the link (Manivannan Sadhasivam)

- For controllers like NXP i.MX6QP and i.MX7D, where LTSSM registers
are not accessible after PME_Turn_Off, simply wait 10ms instead of
polling for L2/L3 Ready (Richard Zhu)

- Use multiple iATU entries to map large bridge windows and DMA
ranges when necessary instead of failing (Samuel Holland)

- Add EPC dynamic_inbound_mapping feature bit for Endpoint
Controllers that can update BAR inbound address translation without
requiring EPF driver to clear/reset the BAR first, and advertise it
for DWC-based Endpoints (Koichiro Den)

- Add EPC subrange_mapping feature bit for Endpoint Controllers that
can map multiple independent inbound regions in a single BAR,
implement subrange mapping, advertise it for DWC-based Endpoints,
and add Endpoint selftests for it (Koichiro Den)

- Make resizable BARs work for Endpoint multi-PF configurations;
previously it only worked for PF 0 (Aksh Garg)

- Fix Endpoint non-PF 0 support for BAR configuration, ATU mappings,
and Address Match Mode (Aksh Garg)

- Set up iATU when ECAM is enabled; previously IO and MEM outbound
windows weren't programmed, and ECAM-related iATU entries weren't
restored after suspend/resume, so config accesses failed (Krishna
Chaitanya Chundru)

Miscellaneous:

- Use system_percpu_wq and WQ_PERCPU to explicitly request per-CPU
work so WQ_UNBOUND can eventually be removed (Marco Crivellari)"

* tag 'pci-v7.0-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (176 commits)
PCI/bwctrl: Disable BW controller on Intel P45 using a quirk
PCI: Disable ACS SV for IDT 0x8090 switch
PCI: Disable ACS SV for IDT 0x80b5 switch
PCI: Cache ACS Capabilities register
PCI: Enable ACS after configuring IOMMU for OF platforms
PCI: Add ACS quirk for Pericom PI7C9X2G404 switches [12d8:b404]
PCI: Add ACS quirk for Qualcomm Hamoa & Glymur
PCI: Use device_lock_assert() to verify device lock is held
PCI: Use lockdep_assert_held(pci_bus_sem) to verify lock is held
PCI: Fix pci_slot_lock () device locking
PCI: Fix pci_slot_trylock() error handling
PCI: Mark Nvidia GB10 to avoid bus reset
PCI: Mark ASM1164 SATA controller to avoid bus reset
PCI: host-generic: Avoid reporting incorrect 'missing reg property' error
PCI/PME: Replace RMW of Root Status register with direct write
PCI/AER: Clear stale errors on reporting agents upon probe
PCI: Don't claim disabled bridge windows
PCI: rzg3s-host: Fix device node reference leak in rzg3s_pcie_host_parse_port()
PCI: dwc: Fix missing iATU setup when ECAM is enabled
PCI: dwc: Clean up iATU index usage in dw_pcie_iatu_setup()
...

show more ...


# ec496f77 09-Feb-2026 Jiri Kosina <jkosina@suse.com>

Merge branch 'for-6.20/sony' into for-linus

- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders)


Revision tags: v6.19
# bf37448d 07-Feb-2026 Bjorn Helgaas <bhelgaas@google.com>

Merge branch 'pci/pwrctrl'

- Rename pwrseq, tc9563, and slot driver structs, variables, and functions
for consistency (Bjorn Helgaas)

- Add power_on/off callbacks with generic signature to pwrseq

Merge branch 'pci/pwrctrl'

- Rename pwrseq, tc9563, and slot driver structs, variables, and functions
for consistency (Bjorn Helgaas)

- Add power_on/off callbacks with generic signature to pwrseq, tc9563, and
slot drivers so they can be used by pwrctrl core (Manivannan Sadhasivam)

- Add interfaces to create and destroy pwrctrl devices (Krishna Chaitanya
Chundru)

- Add interfaces to power devices on and off (Manivannan Sadhasivam)

- Switch to pwrctrl interfaces to create, destroy, and power on/off
devices, calling them from host controller drivers instead of the PCI
core (Manivannan Sadhasivam)

- Drop qcom .assert_perst() callbacks since this is now done by the
controller driver instead of the pwrctrl driver (Manivannan Sadhasivam)

- Add PCIe M.2 connector support to the slot pwrctrl driver (Manivannan
Sadhasivam)

- Create pwrctrl devices for devicetree PCIe M.2 connector nodes
(Manivannan Sadhasivam)

* pci/pwrctrl:
PCI/pwrctrl: Create pwrctrl device if graph port is found
PCI/pwrctrl: Add PCIe M.2 connector support
PCI: Drop the assert_perst() callback
PCI: qcom: Drop the assert_perst() callbacks
PCI/pwrctrl: Switch to pwrctrl create, power on/off, destroy APIs
PCI/pwrctrl: Add APIs to power on/off pwrctrl devices
PCI/pwrctrl: Add APIs to create, destroy pwrctrl devices
PCI/pwrctrl: Add 'struct pci_pwrctrl::power_{on/off}' callbacks
PCI/pwrctrl: pwrseq: Factor out power on/off code to helpers
PCI/pwrctrl: slot: Factor out power on/off code to helpers
PCI/pwrctrl: tc9563: Rename private struct and pointers for consistency
PCI/pwrctrl: tc9563: Add local variables to reduce repetition
PCI/pwrctrl: tc9563: Clean up whitespace
PCI/pwrctrl: tc9563: Use put_device() instead of i2c_put_adapter()
PCI/pwrctrl: slot: Rename private struct and pointers for consistency
PCI/pwrctrl: pwrseq: Rename private struct and pointers for consistency

# Conflicts:
# drivers/pci/bus.c

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Revision tags: v6.19-rc8
# 9cb64f61 28-Jan-2026 Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>

PCI/pwrctrl: Add PCIe M.2 connector support

Add support for handling PCIe M.2 connectors as Power Sequencing devices.
These connectors are exposed as Power Sequencing devices as they often
support m

PCI/pwrctrl: Add PCIe M.2 connector support

Add support for handling PCIe M.2 connectors as Power Sequencing devices.
These connectors are exposed as Power Sequencing devices as they often
support multiple interfaces like PCIe/SATA, USB/UART to the host machine,
and the interfaces may be driven by different client drivers at the same
time.

This driver handles the PCIe interface of these connectors. It first checks
for the presence of the graph port in the Root Port node with the help of
of_graph_is_present() API. If present, it acquires/powers ON the
corresponding pwrseq device.

Once the pwrseq device is powered ON, the driver will skip parsing the Root
Port/Slot resources and register with the pwrctrl framework.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20260128-pci-m2-v7-1-9b3a5fe3d244@oss.qualcomm.com

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Revision tags: v6.19-rc7
# cc4adab1 20-Jan-2026 Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

Merge tag 'v6.19-rc1' into msm-next

Merge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWC
config database defining UBWC_6).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.q

Merge tag 'v6.19-rc1' into msm-next

Merge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWC
config database defining UBWC_6).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

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Revision tags: v6.19-rc6, v6.19-rc5, v6.19-rc4, v6.19-rc3, v6.19-rc2
# 5add3c3c 19-Dec-2025 Thomas Hellström <thomas.hellstrom@linux.intel.com>

Merge drm/drm-next into drm-xe-next

Backmerging to bring in 6.19-rc1. An important upstream bugfix and
to help unblock PTL CI.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>


# ec439c38 17-Dec-2025 Alexei Starovoitov <ast@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Cross-merge BPF and other fixes after downstream PR.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>


# b8304863 15-Dec-2025 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Sync-up some display code needed for Async flips refactor.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


# 7f790dd2 15-Dec-2025 Maxime Ripard <mripard@kernel.org>

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.20 (7.0?) release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>


# 24f171c7 21-Dec-2025 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.19

We've been quite busy with fixes since the merge window, though

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.19

We've been quite busy with fixes since the merge window, though not in
any particularly exciting ways - the standout thing is the fix for _SX
controls which were broken by a change to how we do clamping, otherwise
it's all fairly run of the mill fixes and quirks.

show more ...


# 84318277 15-Dec-2025 Maarten Lankhorst <dev@lankhorst.se>

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Pull in rc1 to include all changes since the merge window closed,
and grab all fixes and changes from drm/drm-next.

Signed-off-by: M

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Pull in rc1 to include all changes since the merge window closed,
and grab all fixes and changes from drm/drm-next.

Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>

show more ...


Revision tags: v6.19-rc1
# 43dfc13c 05-Dec-2025 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v6.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Enable host bridge emulation for PCI_DOMAINS_GENERIC

Merge tag 'pci-v6.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Enable host bridge emulation for PCI_DOMAINS_GENERIC platforms (Dan
Williams)

- Switch vmd from custom domain number allocator to the common
allocator to prevent a potential race with new non-VMD buses (Dan
Williams)

- Enable Precision Time Measurement (PTM) only if device advertises
support for a relevant role, to prevent invalid PTM Requests that
cause ACS violations that are reported as AER Uncorrectable
Non-Fatal errors (Mika Westerberg)

Resource management:

- Prevent resource tree corruption when BAR resize fails (Ilpo
Järvinen)

- Restore BARs to the original size if a BAR resize fails (Ilpo
Järvinen)

- Remove BAR release from BAR resize attempts by the xe, i915, and
amdgpu drivers so the PCI core can restore BARs if the resize fails
(Ilpo Järvinen)

- Move Resizable BAR code to rebar.c (Ilpo Järvinen)

- Add pci_rebar_size_supported() and use it in i915 and xe (Ilpo
Järvinen)

- Add pci_rebar_get_max_size() and use it in xe and amdgpu (Ilpo
Järvinen)

Power management and error handling:

- For drivers using PCI legacy suspend, save config state at suspend
so that state (not any earlier state from enumeration, probe, or
error recovery) will be restored when resuming (Lukas Wunner)

- For devices with no driver or a driver that lacks power management,
save config state at hibernate so that state (not any earlier state
from enumeration, probe, or error recovery) will be restored when
resuming (Lukas Wunner)

- Save device config space on device addition, before driver binding,
so error recovery works more reliably (Lukas Wunner)

- Drop pci_save_state() from several drivers that no longer need it
since the PCI core always does it and pci_restore_state() no longer
invalidates the saved state (Lukas Wunner)

- Document use of pci_save_state() by drivers to capture the state
they want restored during error recovery (Lukas Wunner)

Power control:

- Add a struct pci_ops.assert_perst() function pointer to
assert/deassert PCIe PERST# and implement it for the qcom driver
(Krishna Chaitanya Chundru)

- Add DT binding and pwrctrl driver for the Toshiba TC9563 PCIe
switch, which must be held in reset after poweron so the pwrctrl
driver can configure the switch via I2C before bringing up the
links (Krishna Chaitanya Chundru)

Endpoint framework:

- Convert the endpoint doorbell test to use a threaded IRQ to fix a
'sleeping while atomic' issue (Bhanu Seshu Kumar Valluri)

- Add endpoint VNTB MSI doorbell support to reduce latency between
host and endpoint (Frank Li)

New native PCIe controller drivers:

- Add CIX Sky1 host controller DT binding and driver (Hans Zhang)

- Add NXP S32G host controller DT binding and driver (Vincent
Guittot)

- Add Renesas RZ/G3S host controller DT binding and driver (Claudiu
Beznea)

- Add SpacemiT K1 host controller DT binding and driver (Alex Elder)

Amlogic Meson PCIe controller driver:

- Update DT binding to name DBI region 'dbi', not 'elbi', and update
driver to support both (Manivannan Sadhasivam)

Apple PCIe controller driver:

- Move struct pci_host_bridge allocation from pci_host_common_init()
to callers, which significantly simplifies pcie-apple (Marc
Zyngier)

Broadcom STB PCIe controller driver:

- Disable advertising ASPM L0s support correctly (Jim Quinlan)

- Add a panic/die handler to print diagnostic info in case PCIe
caused an unrecoverable abort (Jim Quinlan)

Cadence PCIe controller driver:

- Add module support for Cadence platform host and endpoint
controller driver (Manikandan K Pillai)

- Split headers into 'legacy' (LGA) and 'high perf' (HPA) to prepare
for new CIX Sky1 driver (Manikandan K Pillai)

MediaTek PCIe controller driver:

- Convert DT binding to YAML schema (Christian Marangi)

- Add Airoha AN7583 DT compatible and driver support (Christian
Marangi)

Qualcomm PCIe controller driver:

- Add Qualcomm Kaanapali to SM8550 DT binding (Qiang Yu)

- Add required 'power-domains' and 'resets' to qcom sa8775p, sc7280,
sc8280xp, sm8150, sm8250, sm8350, sm8450, sm8550, x1e80100 DT
schemas (Krzysztof Kozlowski)

- Look up OPP using both frequency and data rate (not just frequency)
so RPMh votes can account for both (Krishna Chaitanya Chundru)

Rockchip DesignWare PCIe controller driver:

- Add Rockchip RK3528 compatible strings in DT binding (Yao Zi)

STMicroelectronics STM32MP25 PCIe controller driver:

- Fix a race between link training and endpoint register
initialization (Christian Bruel)

- Align endpoint allocations to match the ATU requirements (Christian
Bruel)

Synopsys DesignWare PCIe controller driver:

- Clear L1 PM Substate Capability 'Supported' bits unless glue driver
says it's supported, which prevents users from enabling non-working
L1SS. Currently only qcom and tegra194 support L1SS (Bjorn Helgaas)

- Remove now-superfluous L1SS disable code from tegra194 (Bjorn
Helgaas)

- Configure L1SS support in dw-rockchip when DT says
'supports-clkreq' (Shawn Lin)

TI Keystone PCIe controller driver:

- Fail the probe instead of silently succeeding if ks_pcie_of_data
didn't specify Root Complex or Endpoint mode (Siddharth Vadapalli)

- Make keystone buildable as a loadable module, except on ARM32 where
hook_fault_code() is __init (Siddharth Vadapalli)"

* tag 'pci-v6.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (100 commits)
MAINTAINERS: Add Manivannan Sadhasivam as PCI/pwrctrl maintainer
MAINTAINERS: Add CIX Sky1 PCIe controller driver maintainer
PCI: sky1: Add PCIe host support for CIX Sky1
dt-bindings: PCI: Add CIX Sky1 PCIe Root Complex bindings
PCI: cadence: Add support for High Perf Architecture (HPA) controller
MAINTAINERS: Add NXP S32G PCIe controller driver maintainer
PCI: s32g: Add NXP S32G PCIe controller driver (RC)
PCI: dwc: Add register and bitfield definitions
dt-bindings: PCI: s32g: Add NXP S32G PCIe controller
PCI: Add Renesas RZ/G3S host controller driver
PCI: host-generic: Move bridge allocation outside of pci_host_common_init()
dt-bindings: PCI: Add Renesas RZ/G3S PCIe controller binding
PCI: Validate pci_rebar_size_supported() input
Documentation: PCI: Amend error recovery doc with pci_save_state() rules
treewide: Drop pci_save_state() after pci_restore_state()
PCI/ERR: Ensure error recoverability at all times
PCI/PM: Stop needlessly clearing state_saved on enumeration and thaw
PCI/PM: Reinstate clearing state_saved in legacy and !PM codepaths
PCI: dw-rockchip: Configure L1SS support
PCI: tegra194: Remove unnecessary L1SS disable code
...

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# 9f1aa395 03-Dec-2025 Bjorn Helgaas <bhelgaas@google.com>

Merge branch 'pci/pwrctrl-tc9563'

- Add a struct pci_ops.assert_perst() function pointer to assert/deassert
PCIe PERST# and implement it for the qcom driver (Krishna Chaitanya
Chundru)

- Add DT

Merge branch 'pci/pwrctrl-tc9563'

- Add a struct pci_ops.assert_perst() function pointer to assert/deassert
PCIe PERST# and implement it for the qcom driver (Krishna Chaitanya
Chundru)

- Add DT binding and pwrctrl driver for the Toshiba TC9563 PCIe switch,
which must be held in reset after poweron so the pwrctrl driver can
configure the switch via I2C before bringing up the links (Krishna
Chaitanya Chundru)

* pci/pwrctrl-tc9563:
PCI: pwrctrl: Add power control driver for TC9563
PCI: qcom: Implement .assert_perst()
PCI: dwc: Implement .assert_perst() for dwc glue drivers
PCI: Add .assert_perst() to control PCIe PERST#
dt-bindings: PCI: Add binding for Toshiba TC9563 PCIe switch

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Revision tags: v6.18, v6.18-rc7, v6.18-rc6, v6.18-rc5, v6.18-rc4
# 4c9c7be4 01-Nov-2025 Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>

PCI: pwrctrl: Add power control driver for TC9563

TC9563 is a PCIe switch that has one upstream and three downstream ports.
One of the downstream ports is connected to an integrated ethernet MAC
end

PCI: pwrctrl: Add power control driver for TC9563

TC9563 is a PCIe switch that has one upstream and three downstream ports.
One of the downstream ports is connected to an integrated ethernet MAC
endpoint. The other two downstream ports are available to connect to
external devices. One Host can connect to TC9563 by upstream port. The
TC9563 switch needs to be configured after powering on and before the PCIe
link is up.

The PCIe controller driver already enables link training at the host side
even before this driver probe happens. Due to this, when driver enables
power to the switch, it participates in link training and the PCIe link may
come up before configuring the switch through I2C. Once the link is up the
configuration done through I2C will not have any effect. To prevent the
host from participating in link training, disable link training on the host
side to ensure the link does not come up before the switch is configured
via I2C.

Based on DT property and type of the port, TC9563 is configured through
I2C.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
[bhelgaas: squash fixes from
https://lore.kernel.org/r/20251120065116.13647-2-mani@kernel.org
https://lore.kernel.org/r/20251120065116.13647-3-mani@kernel.org]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20251101-tc9563-v9-6-de3429f7787a@oss.qualcomm.com

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