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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- unify AER decoding for native and ACPI CPER sources (Alexandru
Gagniuc)
- add TLP header info to AER tracepoint (Thomas Tai)
- add generic pcie_wait_for_link() interface (Oza Pawandeep)
- handle AER ERR_FATAL by removing and re-enumerating devices, as
Downstream Port Containment does (Oza Pawandeep)
- factor out common code between AER and DPC recovery (Oza Pawandeep)
- stop triggering DPC for ERR_NONFATAL errors (Oza Pawandeep)
- share ERR_FATAL recovery path between AER and DPC (Oza Pawandeep)
- disable ASPM L1.2 substate if we don't have LTR (Bjorn Helgaas)
- respect platform ownership of LTR (Bjorn Helgaas)
- clear interrupt status in top half to avoid interrupt storm (Oza
Pawandeep)
- neaten pci=earlydump output (Andy Shevchenko)
- avoid errors when extended config space inaccessible (Gilles Buloz)
- prevent sysfs disable of device while driver attached (Christoph
Hellwig)
- use core interface to report PCIe link properties in bnx2x, bnxt_en,
cxgb4, ixgbe (Bjorn Helgaas)
- remove unused pcie_get_minimum_link() (Bjorn Helgaas)
- fix use-before-set error in ibmphp (Dan Carpenter)
- fix pciehp timeouts caused by Command Completed errata (Bjorn
Helgaas)
- fix refcounting in pnv_php hotplug (Julia Lawall)
- clear pciehp Presence Detect and Data Link Layer Status Changed on
resume so we don't miss hotplug events (Mika Westerberg)
- only request pciehp control if we support it, so platform can use
ACPI hotplug otherwise (Mika Westerberg)
- convert SHPC to be builtin only (Mika Westerberg)
- request SHPC control via _OSC if we support it (Mika Westerberg)
- simplify SHPC handoff from firmware (Mika Westerberg)
- fix an SHPC quirk that mistakenly included *all* AMD bridges as well
as devices from any vendor with device ID 0x7458 (Bjorn Helgaas)
- assign a bus number even to non-native hotplug bridges to leave
space for acpiphp additions, to fix a common Thunderbolt xHCI
hot-add failure (Mika Westerberg)
- keep acpiphp from scanning native hotplug bridges, to fix common
Thunderbolt hot-add failures (Mika Westerberg)
- improve "partially hidden behind bridge" messages from core (Mika
Westerberg)
- add macros for PCIe Link Control 2 register (Frederick Lawler)
- replace IB/hfi1 custom macros with PCI core versions (Frederick
Lawler)
- remove dead microblaze and xtensa code (Bjorn Helgaas)
- use dev_printk() when possible in xtensa and mips (Bjorn Helgaas)
- remove unused pcie_port_acpi_setup() and portdrv_acpi.c (Bjorn
Helgaas)
- add managed interface to get PCI host bridge resources from OF (Jan
Kiszka)
- add support for unbinding generic PCI host controller (Jan Kiszka)
- fix memory leaks when unbinding generic PCI host controller (Jan
Kiszka)
- request legacy VGA framebuffer only for VGA devices to avoid false
device conflicts (Bjorn Helgaas)
- turn on PCI_COMMAND_IO & PCI_COMMAND_MEMORY in pci_enable_device()
like everybody else, not in pcibios_fixup_bus() (Bjorn Helgaas)
- add generic enable function for simple SR-IOV hardware (Alexander
Duyck)
- use generic SR-IOV enable for ena, nvme (Alexander Duyck)
- add ACS quirk for Intel 7th & 8th Gen mobile (Alex Williamson)
- add ACS quirk for Intel 300 series (Mika Westerberg)
- enable register clock for Armada 7K/8K (Gregory CLEMENT)
- reduce Keystone "link already up" log level (Fabio Estevam)
- move private DT functions to drivers/pci/ (Rob Herring)
- factor out dwc CONFIG_PCI Kconfig dependencies (Rob Herring)
- add DesignWare support to the endpoint test driver (Gustavo
Pimentel)
- add DesignWare support for endpoint mode (Gustavo Pimentel)
- use devm_ioremap_resource() instead of devm_ioremap() in dra7xx and
artpec6 (Gustavo Pimentel)
- fix Qualcomm bitwise NOT issue (Dan Carpenter)
- add Qualcomm runtime PM support (Srinivas Kandagatla)
- fix DesignWare enumeration below bridges (Koen Vandeputte)
- use usleep() instead of mdelay() in endpoint test (Jia-Ju Bai)
- add configfs entries for pci_epf_driver device IDs (Kishon Vijay
Abraham I)
- clean up pci_endpoint_test driver (Gustavo Pimentel)
- update Layerscape maintainer email addresses (Minghuan Lian)
- add COMPILE_TEST to improve build test coverage (Rob Herring)
- fix Hyper-V bus registration failure caused by domain/serial number
confusion (Sridhar Pitchai)
- improve Hyper-V refcounting and coding style (Stephen Hemminger)
- avoid potential Hyper-V hang waiting for a response that will never
come (Dexuan Cui)
- implement Mediatek chained IRQ handling (Honghui Zhang)
- fix vendor ID & class type for Mediatek MT7622 (Honghui Zhang)
- add Mobiveil PCIe host controller driver (Subrahmanya Lingappa)
- add Mobiveil MSI support (Subrahmanya Lingappa)
- clean up clocks, MSI, IRQ mappings in R-Car probe failure paths
(Marek Vasut)
- poll more frequently (5us vs 5ms) while waiting for R-Car data link
active (Marek Vasut)
- use generic OF parsing interface in R-Car (Vladimir Zapolskiy)
- add R-Car V3H (R8A77980) "compatible" string (Sergei Shtylyov)
- add R-Car gen3 PHY support (Sergei Shtylyov)
- improve R-Car PHYRDY polling (Sergei Shtylyov)
- clean up R-Car macros (Marek Vasut)
- use runtime PM for R-Car controller clock (Dien Pham)
- update arm64 defconfig for Rockchip (Shawn Lin)
- refactor Rockchip code to facilitate both root port and endpoint
mode (Shawn Lin)
- add Rockchip endpoint mode driver (Shawn Lin)
- support VMD "membar shadow" feature (Jon Derrick)
- support VMD bus number offsets (Jon Derrick)
- add VMD "no AER source ID" quirk for more device IDs (Jon Derrick)
- remove unnecessary host controller CONFIG_PCIEPORTBUS Kconfig
selections (Bjorn Helgaas)
- clean up quirks.c organization and whitespace (Bjorn Helgaas)
* tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (144 commits)
PCI/AER: Replace struct pcie_device with pci_dev
PCI/AER: Remove unused parameters
PCI: qcom: Include gpio/consumer.h
PCI: Improve "partially hidden behind bridge" log message
PCI: Improve pci_scan_bridge() and pci_scan_bridge_extend() doc
PCI: Move resource distribution for single bridge outside loop
PCI: Account for all bridges on bus when distributing bus numbers
ACPI / hotplug / PCI: Drop unnecessary parentheses
ACPI / hotplug / PCI: Mark stale PCI devices disconnected
ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug
PCI: hotplug: Add hotplug_is_native()
PCI: shpchp: Add shpchp_is_native()
PCI: shpchp: Fix AMD POGO identification
PCI: mobiveil: Add MSI support
PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver
PCI/AER: Decode Error Source Requester ID
PCI/AER: Remove aer_recover_work_func() forward declaration
PCI/DPC: Use the generic pcie_do_fatal_recovery() path
PCI/AER: Pass service type to pcie_do_fatal_recovery()
PCI/DPC: Disable ERR_NONFATAL handling by DPC
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- fix use-before-set error in ibmphp (Dan Carpenter)
- fix pciehp timeouts caused by Command Completed errata (Bjorn Helgaas)
- fix refcounting in pnv_php hotplug (Julia Lawall)
- clear pciehp Presence Detect and Data Link Layer Status Changed on
resume so we don't miss hotplug events (Mika Westerberg)
- only request pciehp control if we support it, so platform can use ACPI
hotplug otherwise (Mika Westerberg)
- convert SHPC to be builtin only (Mika Westerberg)
- request SHPC control via _OSC if we support it (Mika Westerberg)
- simplify SHPC handoff from firmware (Mika Westerberg)
* pci/hotplug:
PCI: Improve "partially hidden behind bridge" log message
PCI: Improve pci_scan_bridge() and pci_scan_bridge_extend() doc
PCI: Move resource distribution for single bridge outside loop
PCI: Account for all bridges on bus when distributing bus numbers
ACPI / hotplug / PCI: Drop unnecessary parentheses
ACPI / hotplug / PCI: Mark stale PCI devices disconnected
ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug
PCI: hotplug: Add hotplug_is_native()
PCI: shpchp: Add shpchp_is_native()
PCI: shpchp: Fix AMD POGO identification
PCI: shpchp: Use dev_printk() for OSHP-related messages
PCI: shpchp: Remove get_hp_hw_control_from_firmware() wrapper
PCI: shpchp: Remove acpi_get_hp_hw_control_from_firmware() flags
PCI: shpchp: Rely on previous _OSC results
PCI: shpchp: Request SHPC control via _OSC when adding host bridge
PCI: shpchp: Convert SHPC to be builtin only
PCI: pciehp: Make pciehp_is_native() stricter
PCI: pciehp: Rename host->native_hotplug to host->native_pcie_hotplug
PCI: pciehp: Request control of native hotplug only if supported
PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume
PCI: pnv_php: Add missing of_node_put()
PCI: pciehp: Add quirk for Command Completed errata
PCI: Add Qualcomm vendor ID
PCI: ibmphp: Fix use-before-set in get_max_bus_speed()
# Conflicts:
# drivers/acpi/pci_root.c
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The SHPC driver now must be builtin (it cannot be a module). If it is
present, request SHPC control immediately when adding the ACPI host bridge.
This is similar to how we handle native PCIe hotplug via pciehp.
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[bhelgaas: split to separate patch]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Rename host->native_hotplug to host->native_pcie_hotplug to make room for a
similar flag for SHPC hotplug.
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[bhelgaas: split to separate patch]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Currently we request control of native PCIe hotplug unconditionally.
Native PCIe hotplug events are handled by the pciehp driver, and if it is
not enabled those events will be lost.
Request control of native PCIe hotplug only if the pciehp driver is
enabled, so we will actually handle native PCIe hotplug events.
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Per the PCI Firmware spec r3.2, sec 4.5, an ACPI-based OS should use _OSC
to request control of Latency Tolerance Reporting (LTR) before using it.
Request control of LTR, and if the platform does not grant control, don't
use it.
N.B. If the hardware supports LTR and the ASPM L1.2 substate but the BIOS
doesn't support LTR in _OSC, we previously would enable ASPM L1.2. This
patch will prevent us from enabling ASPM L1.2 in that case. It does not
prevent us from enabling PCI-PM L1.2, since that doesn't depend on LTR.
See PCIe r40, sec 5.5.1, for the L1 PM substate entry conditions.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pull EDAC updates from Borislav Petkov:
- Stratix10 SDRAM support to altera_edac (Thor Thayer)
- the usual misc fixes all over the place
[ Also, shared branch for socfpga_stratix10.dtsi file changes with the
socfpga tree ]
* tag 'edac_for_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, ghes: Make platform-based whitelisting x86-only
EDAC, altera: Fix ARM64 build warning
EDAC, skx: Fix skx_edac build error when ACPI_NFIT=m
EDAC, ghes: Use BIT() macro
EDAC, ghes: Add DDR4 and NVDIMM memory types
EDAC, altera: Handle SDRAM Uncorrectable Errors on Stratix10
Documentation: dt: edac: Move Altera SOCFPGA EDAC file
EDAC, altera: Add support for Stratix10 SDRAM EDAC
Documentation: dt: socfpga: Add Stratix10 ECC Manager binding
EDAC, ghes: Remove unused argument to ghes_edac_report_mem_error()
arm64: dts: stratix10: add sdram ecc
EDAC, i7core: Fix spelling mistake: "redundacy" -> "redundancy"
EDAC, ghes: Add a null pointer check in ghes_edac_unregister()
ghes, EDAC: Fix ghes_edac registration
arm64: dts: stratix10: Change pad skew values for EMAC0 PHY driver
ARM: dts: consistently use 'atmel' as at24 manufacturer in cyclone5
arm64: dts: stratix10: Add PL330 DMAC to Stratix10 dts
arm64: dts: stratix10: enable i2c, add i2c periperals
arm64: dts: stratix10: use clock bindings for the Stratix10 platform
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The use of the @ghes argument was removed in a previous commit, but
function signature was not updated to reflect this.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180430213358.8319-1-mr.nuke.me@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>
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Tony reported seeing
"Internal error: Can't find EDAC structure"
when injecting correctable errors due to the fact that ghes_edac would
still load even if the whitelist won't hit. Drop the pr_err() in
ghes_edac_report_mem_error() for now due to the hacky way how ghes_edac
depends on ghes.c.
While at it, make ghes_edac_register() return an error if it doesn't hit
in the whitelist as it is the only sensible thing to do in that
situation.
Furthermore, move the call to it to happen last in ghes_probe() so that
GHES initializing properly does not depend on ghes_edac init at all
as latter is only reporting errors and not required for GHES's proper
functioning.
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Tested-by: Sughosh Ganu <sughosh.ganu@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20180420182015.zao3olss4tvvlxki@agluck-desk
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to the 20180508 upstream
revision and make it support the RT patch, add CPPC v3 support to the
ACPI CPPC library, add a WDAT-based watchdog quirk to prevent clashes
with the RTC, add quirks to the ACPI AC and battery drivers, and
update the ACPI SoC drivers.
Specifics:
- Update the ACPICA code in the kernel to the 20180508 upstream
revision including:
* iASL -tc option enhancement (Bob Moore).
* Debugger improvements (Bob Moore).
* Support for tables larger than 1 MB in acpidump/acpixtract (Bob
Moore).
* Minor fixes and cleanups (Colin Ian King, Toomas Soome).
- Make the ACPICA code in the kernel support the RT patch (Sebastian
Andrzej Siewior, Steven Rostedt).
- Add a kmemleak annotation to the ACPICA code (Larry Finger).
- Add CPPC v3 support to the ACPI CPPC library and fix two issues
related to CPPC (Prashanth Prakash, Al Stone).
- Add an ACPI WDAT-based watchdog quirk to prefer iTCO_wdt on systems
where WDAT clashes with the RTC SRAM (Mika Westerberg).
- Add some quirks to the ACPI AC and battery drivers (Carlo Caione,
Hans de Goede).
- Update the ACPI SoC drivers for Intel (LPSS) and AMD (APD)
platforms (Akshu Agrawal, Hans de Goede).
- Fix up some assorted minor issues (Al Stone, Laszlo Toth, Mathieu
Malaterre)"
* tag 'acpi-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
ACPICA: Mark acpi_ut_create_internal_object_dbg() memory allocations as non-leaks
ACPI / watchdog: Prefer iTCO_wdt always when WDAT table uses RTC SRAM
mailbox: PCC: erroneous error message when parsing ACPI PCCT
ACPICA: Update version to 20180508
ACPICA: acpidump/acpixtract: Support for tables larger than 1MB
ACPI: APD: Add AMD misc clock handler support
clk: x86: Add ST oscout platform clock
ACPICA: Update version to 20180427
ACPICA: Debugger: Removed direct support for EC address space in "Test Objects"
ACPICA: Debugger: Add Package support for "test objects" command
ACPICA: Improve error messages for the namespace root node
ACPICA: Fix potential infinite loop in acpi_rs_dump_byte_list
ACPICA: vsnprintf: this statement may fall through
ACPICA: Tables: Fix spelling mistake in comment
ACPICA: iASL: Enhance the -tc option (create AML hex file in C)
ACPI: Add missing prototype_for arch_post_acpi_subsys_init()
ACPI / tables: improve comments regarding acpi_parse_entries_array()
ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock
ACPICA: provide abstraction for raw_spinlock_t
ACPI / CPPC: Fix invalid PCC channel status errors
...
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* acpi-soc:
ACPI: APD: Add AMD misc clock handler support
clk: x86: Add ST oscout platform clock
ACPI / LPSS: Only call pwm_add_table() for Bay Trail PWM if PMIC HRV is 2
* acpi-tables:
ACPI / tables: improve comments regarding acpi_parse_entries_array()
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I found the description of the table_size argument to the function
acpi_parse_entries_array() unclear and ambiguous. This is a minor
documentation change to improve that description so I don't misuse
the argument again in the future, and it is hopefully clearer to
other future users.
Signed-off-by: Al Stone <ahs3@redhat.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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AMD SoC exposes clock for general purpose use. The clock registration
is done in clk-st driver. The MMIO mapping are passed on to the
clock driver for accessing the registers.
The misc clock handler will create MMIO mappings to access the
clock registers and enable the clock driver to expose the clock
for use of drivers which will connect to it.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The Point of View mobii wintab p800w Bay Trail tablet comes with a Crystal
Cove PMIC, yet uses the LPSS PWM for backlight control, rather then the
Crystal Cove's PWM, so we need to call pwm_add_table() to add a
pwm_backlight mapping for the LPSS pwm despite there being an INT33FD
ACPI device present.
On all Bay Trail devices the _HRV object of the INT33FD ACPI device
will normally return 2, to indicate the Bay Trail variant of the CRC
PMIC is present, except on this tablet where _HRV is 0xffff. I guess this
is a hack to make the windows Crystal Cove PWM driver not bind.
Out of the 44 DSTDs with an INT33FD device in there which I have (from
different model devices) only the pov mobii wintab p800w uses 0xffff for
the HRV.
The byt_pwm_setup code calls acpi_dev_present to check for the presence
of a INT33FD ACPI device which indicates that a CRC PMIC is present and
if the INT33FD ACPI device is present then byt_pwm_setup will not add
a pwm_backlight mapping for the LPSS pwm, so that the CRC PWM will get
used instead.
acpi_dev_present has a hrv parameter, this commit make us pass 2 instead
of -1, so that things still match on normal tablets, but on this special
case with its _HRV of 0xffff, the check will now fail so that the
pwm_backlight mapping for the LPSS pwm gets added fixing backlight
brightness control on this device.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpi-cppc:
mailbox: PCC: erroneous error message when parsing ACPI PCCT
ACPI / CPPC: Fix invalid PCC channel status errors
ACPI / CPPC: Document CPPC sysfs interface
cpufreq / CPPC: Support for CPPC v3
ACPI / CPPC: Check for valid PCC subspace only if PCC is used
ACPI / CPPC: Add support for CPPC v3
* acpi-misc:
ACPI: Add missing prototype_for arch_post_acpi_subsys_init()
ACPI: add missing newline to printk
* acpi-battery:
ACPI / battery: Add quirk to avoid checking for PMIC with native driver
ACPI / battery: Ignore AC state in handle_discharging on systems where it is broken
ACPI / battery: Add handling for devices which wrongly report discharging state
ACPI / battery: Remove initializer for unused ident dmi_system_id
ACPI / AC: Remove initializer for unused ident dmi_system_id
* acpi-ac:
ACPI / AC: Add quirk to avoid checking for PMIC with native driver
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With commit af3ec837b84b (ACPI / AC: Add a blacklist with PMIC ACPI HIDs
with a native charger driver) a blacklist was introduced to avoid using
the ACPI drivers for AC when a native PMIC driver was already present.
While this is in general a good idea (because of broken DSDT or proprietary
and undocumented ACPI opregions for the ACPI AC devices) there are some
Cherry Trail devices which use a separate charger controller despite the
AXP288 having a builtin charger.
The net effect of blacklisting the ACPI drivers is that on these devices
the AC reporting is broken since the AXP288 PMIC charger bits are not
actually used on this hardware.
This commit adds an ac_do_not_check_pmic quirk for this and sets this on
the 2 devices currently known to use a separate FG controller,
the ECS EF20EA and the Lenovo Ideapad Miix 320.
[hdegoede@redhat.com: Merge the quirk handling and the adding of the DMI
table entry into 1 commit, add a second DMI entry for the Miix 320.]
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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With commit dccfae6d4f4c (ACPI / battery: Add a blacklist with PMIC ACPI
HIDs with a native battery driver) a blacklist was introduced to avoid
using the ACPI drivers for the battery when a native PMIC driver was
already present. While this is in general a good idea (because of broken
DSDT or proprietary and undocumented ACPI opregions for the ACPI battery
devices) there are some Cherry Trail devices which use a separate FG
controller despite the AXP288 having a builtin FG.
The net effect of blacklisting the ACPI drivers is that on these devices
the battery reporting is broken since the AXP288 PMIC FG bits are not
actually used on this hardware.
This commit adds a battery_do_not_check_pmic quirk for this and sets
this on the 2 devices currently known to use a separate FG controller,
the ECS EF20EA and the Lenovo Ideapad Miix 320.
[hdegoede@redhat.com: Merge the quirk handling and the adding of the DMI
table entry into 1 commit, add a second DMI entry for the Miix 320.]
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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broken
On some devices the "AC" interface ACPI AML code uses the exact same broken
logic which is causing the battery code to wrongly report discharging to
determine the "AC" state. Specifically the ACPI AML code is checking the
charging status bits of the charger-IC rather then the vbus present or
power-good status bits.
This makes our workaround for devices which wrongly report discharging when
plugged into AC while the charge is above the start charging threshold not
work on these devices.
This commit adds a battery_ac_is_broken flag and when that is set it skips
the power_supply_is_system_supplied() check in the workaround fixing this.
This flag gets set by a DMI quirk selected by systems where we know the AC
AML code is broken in this way *and* the rate_now value can be trusted.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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On quite a few devices the battery code in the ACPI tables is buggy and
first checks the charging status bits of the charger-IC, and if those
report not charging it will report discharging, without looking at the
presence of AC power or at the battery dis(charge) current from the
fuel-gauge.
This causes the wrong status to be reported for the battery in the
following quite common scenario:
1) Plug in charger while battery is say half full, battery starts
charging, charging state bits indicate: pre-charge or fast-charge,
ACPI reported battery status is ok
2) When fully charged charging state bits indicate: end-of-charge,
ACPI reported battery status is ok
3) unplug the charger, wait 1 minute, replug. Now the battery voltage is
still above the start-charging threshold, so the charger will not start
charging to avoid wrecking the battery by repeatedly recharging the last 1%
capacity. The charger IC charging state bits now are all 0 (not-charging)
and the broken ACPI code wrongly translate this to "discharging" and ends
up setting the ACPI_BATTERY_STATE_DISCHARGING bit in its state field.
Reporting this "not charging" state as discharging is confusing for users,
making the user think his adapter/power-brick is broken or not properly
plugged in.
This commit adds a helper for handling the ACPI_BATTERY_STATE_DISCHARGING
state. This helper checks if we're an AC and the current going out of the
battery is 0 and in that case reports a status of "not charging" to
userspace rather then "discharging".
This replaces commit c68f0676ef7d ("ACPI / battery: Add quirk for Asus
GL502VSK and UX305LA"), a previous fix for this which was reverted.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The battery code does not use the dmi_system_id ident member, so there is
no need to initialize it. This saves us storing the unused strings as
as const data.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The ac.c code does not use the dmi_system_id ident member, so there is
no need to initialize it. This saves us storing the unused "thinkpad e530"
string as const data.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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...and restore reverse xmas tree while at it.
Signed-off-by: Laszlo Toth <laszlth@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace the faulty PCC status register polling code with a iopoll.h
macro to fix incorrect reporting of PCC check errors ("PCC check
channel failed").
There were potential codepaths where we could incorrectly return
PCC channel status as busy even without checking the PCC status
register once or not checking the status register before breaking
out of the polling loop. For example, if the thread polling PCC
status register was preempted and scheduled back after we have
crossed the deadline then we can report that the channel is busy
even without checking the status register.
Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Changes the behavior where we return error if there are no valid PCC
subspace for a given performance domain.
The ACPI spec does not mandate the use PCC, so it is possible to have
platforms where a PCC subspace may not be present, so we need to check
for a valid PCC subspace ID only if the register is a PCC register.
Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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CPPC V3 introduces two new entries to make it easier to convert between
abstract processor performance and frequency. The two new entries are
lowest frequency and nominal frequency. These are the frequencies
corresponding to lowest and nominal abstract performance.
Add support to read the new entries and populate them as part of the
CPPC performance capabilities which can be used by cpufreq drivers
Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpica:
ACPICA: Mark acpi_ut_create_internal_object_dbg() memory allocations as non-leaks
ACPICA: Update version to 20180508
ACPICA: acpidump/acpixtract: Support for tables larger than 1MB
ACPICA: Update version to 20180427
ACPICA: Debugger: Removed direct support for EC address space in "Test Objects"
ACPICA: Debugger: Add Package support for "test objects" command
ACPICA: Improve error messages for the namespace root node
ACPICA: Fix potential infinite loop in acpi_rs_dump_byte_list
ACPICA: vsnprintf: this statement may fall through
ACPICA: Tables: Fix spelling mistake in comment
ACPICA: iASL: Enhance the -tc option (create AML hex file in C)
ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock
ACPICA: provide abstraction for raw_spinlock_t
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non-leaks
In kernel 4.17.0-rcX, kmemleak reports 9 leaks with tracebacks similar to
the following:
unreferenced object 0xffff880224a077e0 (size 72):
comm "swapper/0", pid 1, jiffies 4294892358 (age 1022.636s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 0e 01 01 00 00 00 00 01 ................
00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000004f506615>] acpi_ut_create_internal_object_dbg+0x4d/0x10e
[<000000006e7730e3>] acpi_ds_build_internal_object+0xed/0x1cd
[<00000000272b7c73>] acpi_ds_build_internal_package_obj+0x245/0x3a2
[<000000000b64c50e>] acpi_ds_eval_data_object_operands+0x17b/0x21b
[<00000000589647ac>] acpi_ds_exec_end_op+0x433/0x6c1
[<000000001d69bcbf>] acpi_ps_parse_loop+0x926/0x9be
[<000000005d6fa97d>] acpi_ps_parse_aml+0x1a2/0x4af
[<00000000c4bef823>] acpi_ps_execute_table+0xbb/0x119
[<00000000fd9632e4>] acpi_ns_execute_table+0x20c/0x260
[<00000000e6ae17ac>] acpi_ns_parse_table+0x7d/0x1b3
[<0000000008e1e148>] acpi_ns_load_table+0x8d/0x1c0
[<000000009fc8346f>] acpi_tb_load_namespace+0x176/0x278
[<0000000073f98b3b>] acpi_load_tables+0x6e/0xfd
[<00000000d2ef13d2>] acpi_init+0x8c/0x340
[<000000007da19d8d>] do_one_initcall+0x46/0x1fa
[<0000000024681a1d>] kernel_init_freeable+0x1a2/0x237
According to gdb, the offending code is
object =
acpi_ut_allocate_object_desc_dbg(module_name, line_number,
component_id);
As it is not possible to unload the ACPI code to test that this is a real
leak and not a false positive, and that only these 9 appear no matter how
long the system is up, a kmemleak_not_leak(object) call is inserted.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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acpidump: Expand the table offset field to 32 bits.
acpixtract: Add support to handle the expanded field.
Backwards compatibility is maintained.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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None of the address spaces that require a communication protocol
are supported by the "Test Objects" command.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This was missing in the initial implementation of "test objects".
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace "\___" with actual descriptive text.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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There is a potenial infinite loop if acpi_rs_dump_byte_list is
called with a Length greater than 255 since the current loop
counter is just a u8 and will wrap to zero and never reach
the desired value in Length. Fix this by making the loop
counter the size type as Length.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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[rjw:] Add an explicit switch () statement fall-through marker.
Signed-off-by: Toomas Soome <tsoome@me.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The spelling of "sucessfully" should be "successfully", fix this
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This change improves the -tc option by:
1) Creates a unique symbol for the hex table, to simplify
creation of multiple tables (DSDT/SSDT).
2) Adds a protection #ifdef, similar to a .h file.
With assistance from:
Sami Mujawar, sami.mujawar@arm.com
Evan Lloyd, evan.lloyd@arm.com
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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We hit the following bug with -RT:
|BUG: scheduling while atomic: swapper/7/0/0x00000002
|Pid: 0, comm: swapper/7 Not tainted 3.6.11-rt28.19.el6rt.x86_64.debug #1
|Call Trace:
| rt_spin_lock+0x16/0x40
| __schedule_bug+0x67/0x90
| __schedule+0x793/0x7a0
| acpi_os_acquire_lock+0x1f/0x23
| acpi_write_bit_register+0x33/0xb0
| rt_spin_lock_slowlock+0xe5/0x2f0
| acpi_idle_enter_bm+0x8a/0x28e
…
As the acpi code disables interrupts in acpi_idle_enter_bm, and calls
code that grabs the acpi lock, it causes issues as the lock is currently
in RT a sleeping lock.
The lock was converted from a raw to a sleeping lock due to some
previous issues, and tests that showed it didn't seem to matter.
Unfortunately, it did matter for one of our boxes.
This patch converts the lock back to a raw lock. I've run this code on a
few of my own machines, one being my laptop that uses the acpi quite
extensively. I've been able to suspend and resume without issues.
[ tglx: Made the change exclusive for acpi_gbl_hardware_lock ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1360765565.23152.5.camel@gandalf.local.home
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bigeasy: shorten the backtrace, use the type acpi_raw_spinlock incl.
accessor]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After we added quirk for Lenovo Z50-70 it turns out there are at least
two more systems where WDAT table includes instructions accessing RTC
SRAM. Instead of quirking each system separately, look for such
instructions in the table and automatically prefer iTCO_wdt if found.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199033
Reported-by: Arnold Guy <aurnoldg@gmail.com>
Reported-by: Alois Nespor <nespor@fssp.cz>
Reported-by: Yury Pakin <zxwarior@gmail.com>
Reported-by: Ihor Chyhin <ihorchyhin@ukr.net>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These include a significant update of the generic power domains
(genpd) and Operating Performance Points (OPP) frameworks, mostly
related to the introduction of power domain performance levels,
cpufreq updates (new driver for Qualcomm Kryo processors, updates of
the existing drivers, some core fixes, schedutil governor
improvements), PCI power management fixes, ACPI workaround for
EC-based wakeup events handling on resume from suspend-to-idle, and
major updates of the turbostat and pm-graph utilities.
Specifics:
- Introduce power domain performance levels into the the generic
power domains (genpd) and Operating Performance Points (OPP)
frameworks (Viresh Kumar, Rajendra Nayak, Dan Carpenter).
- Fix two issues in the runtime PM framework related to the
initialization and removal of devices using device links (Ulf
Hansson).
- Clean up the initialization of drivers for devices in PM domains
(Ulf Hansson, Geert Uytterhoeven).
- Fix a cpufreq core issue related to the policy sysfs interface
causing CPU online to fail for CPUs sharing one cpufreq policy in
some situations (Tao Wang).
- Make it possible to use platform-specific suspend/resume hooks in
the cpufreq-dt driver and make the Armada 37xx DVFS use that
feature (Viresh Kumar, Miquel Raynal).
- Optimize policy transition notifications in cpufreq (Viresh Kumar).
- Improve the iowait boost mechanism in the schedutil cpufreq
governor (Patrick Bellasi).
- Improve the handling of deferred frequency updates in the schedutil
cpufreq governor (Joel Fernandes, Dietmar Eggemann, Rafael Wysocki,
Viresh Kumar).
- Add a new cpufreq driver for Qualcomm Kryo (Ilia Lin).
- Fix and clean up some cpufreq drivers (Colin Ian King, Dmitry
Osipenko, Doug Smythies, Luc Van Oostenryck, Simon Horman, Viresh
Kumar).
- Fix the handling of PCI devices with the DPM_SMART_SUSPEND flag set
and update stale comments in the PCI core PM code (Rafael Wysocki).
- Work around an issue related to the handling of EC-based wakeup
events in the ACPI PM core during resume from suspend-to-idle if
the EC has been put into the low-power mode (Rafael Wysocki).
- Improve the handling of wakeup source objects in the PM core (Doug
Berger, Mahendran Ganesh, Rafael Wysocki).
- Update the driver core to prevent deferred probe from breaking
suspend/resume ordering (Feng Kan).
- Clean up the PM core somewhat (Bjorn Helgaas, Ulf Hansson, Rafael
Wysocki).
- Make the core suspend/resume code and cpufreq support the RT patch
(Sebastian Andrzej Siewior, Thomas Gleixner).
- Consolidate the PM QoS handling in cpuidle governors (Rafael
Wysocki).
- Fix a possible crash in the hibernation core (Tetsuo Handa).
- Update the rockchip-io Adaptive Voltage Scaling (AVS) driver (David
Wu).
- Update the turbostat utility (fixes, cleanups, new CPU IDs, new
command line options, built-in "Low Power Idle" counters support,
new POLL and POLL% columns) and add an entry for it to MAINTAINERS
(Len Brown, Artem Bityutskiy, Chen Yu, Laura Abbott, Matt Turner,
Prarit Bhargava, Srinivas Pandruvada).
- Update the pm-graph to version 5.1 (Todd Brandt).
- Update the intel_pstate_tracer utility (Doug Smythies)"
* tag 'pm-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (128 commits)
tools/power turbostat: update version number
tools/power turbostat: Add Node in output
tools/power turbostat: add node information into turbostat calculations
tools/power turbostat: remove num_ from cpu_topology struct
tools/power turbostat: rename num_cores_per_pkg to num_cores_per_node
tools/power turbostat: track thread ID in cpu_topology
tools/power turbostat: Calculate additional node information for a package
tools/power turbostat: Fix node and siblings lookup data
tools/power turbostat: set max_num_cpus equal to the cpumask length
tools/power turbostat: if --num_iterations, print for specific number of iterations
tools/power turbostat: Add Cannon Lake support
tools/power turbostat: delete duplicate #defines
x86: msr-index.h: Correct SNB_C1/C3_AUTO_UNDEMOTE defines
tools/power turbostat: Correct SNB_C1/C3_AUTO_UNDEMOTE defines
tools/power turbostat: add POLL and POLL% column
tools/power turbostat: Fix --hide Pk%pc10
tools/power turbostat: Build-in "Low Power Idle" counters support
tools/power turbostat: Don't make man pages executable
tools/power turbostat: remove blank lines
tools/power turbostat: a small C-states dump readability immprovement
...
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* pm-pci:
PCI / PM: Clean up outdated comments in pci_target_state()
PCI / PM: Do not clear state_saved for devices that remain suspended
* acpi-pm:
ACPI: EC: Dispatch the EC GPE directly on s2idle wake
ACPICA: Introduce acpi_dispatch_gpe()
* pm-sleep:
PM / hibernate: Fix oops at snapshot_write()
PM / wakeup: Make s2idle_lock a RAW_SPINLOCK
PM / s2idle: Make s2idle_wait_head swait based
PM / wakeup: Make events_lock a RAW_SPINLOCK
PM / suspend: Prevent might sleep splats
* pm-avs:
PM / AVS: rockchip-io: add io selectors and supplies for PX30
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On platforms where the Low Power S0 Idle _DSM interface is used,
on wakeup from suspend-to-idle, when it is known that the ACPI SCI
has triggered while suspended, dispatch the EC GPE in order to catch
all EC events that may have triggered the wakeup before carrying out
the noirq phase of device resume.
That is needed to handle power button wakeup on some platforms where
the EC goes into a low-power mode during suspend-to-idle and while in
that mode it will discard events after a timeout. If that timeout is
shorter than the time it takes to complete the noirq resume of
devices, looking for EC events after the latter is too late.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Wendy Wang <wendy.wang@intel.com>
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Introduce acpi_dispatch_gpe() as a wrapper around acpi_ev_detect_gpe()
for checking if the given GPE (as represented by a GPE device handle
and a GPE number) is currently active and dispatching it (if that's
the case) outside of interrupt context.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* pm-domains:
PM / domains: Improve wording of dev_pm_domain_attach() comment
PM / Domains: Don't return -EEXIST at attach when PM domain exists
spi: Respect all error codes from dev_pm_domain_attach()
soundwire: Respect all error codes from dev_pm_domain_attach()
mmc: sdio: Respect all error codes from dev_pm_domain_attach()
i2c: Respect all error codes from dev_pm_domain_attach()
driver core: Respect all error codes from dev_pm_domain_attach()
amba: Respect all error codes from dev_pm_domain_attach()
PM / Domains: Allow a better error handling of dev_pm_domain_attach()
PM / Domains: Check for existing PM domain in dev_pm_domain_attach()
PM / Domains: Drop redundant code in genpd while attaching devices
PM / Domains: Drop comment in genpd about legacy Samsung DT binding
PM / Domains: Fix error path during attach in genpd
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The callers of dev_pm_domain_attach() currently checks the returned error
code for -EPROBE_DEFER and needs to ignore other error codes. This is an
unnecessary limitation, which also leads to a rather strange behaviour in
the error path.
Address this limitation, by changing the return codes from
acpi_dev_pm_attach() and genpd_dev_pm_attach(). More precisely, let them
return 0, when no PM domain is needed for the device and then return 1, in
case the device was successfully attached to its PM domain. In this way,
dev_pm_domain_attach(), gets a better understanding of what happens in the
attach attempts and also allowing its caller to better act on real errors
codes.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Instead of checking if an existing PM domain pointer has been assigned in
genpd_dev_pm_attach() and acpi_dev_pm_attach(), move the check to the
common path in dev_pm_domain_attach(), thus potentially avoid one
unnecessary check.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull procfs updates from Al Viro:
"Christoph's proc_create_... cleanups series"
* 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (44 commits)
xfs, proc: hide unused xfs procfs helpers
isdn/gigaset: add back gigaset_procinfo assignment
proc: update SIZEOF_PDE_INLINE_NAME for the new pde fields
tty: replace ->proc_fops with ->proc_show
ide: replace ->proc_fops with ->proc_show
ide: remove ide_driver_proc_write
isdn: replace ->proc_fops with ->proc_show
atm: switch to proc_create_seq_private
atm: simplify procfs code
bluetooth: switch to proc_create_seq_data
netfilter/x_tables: switch to proc_create_seq_private
netfilter/xt_hashlimit: switch to proc_create_{seq,single}_data
neigh: switch to proc_create_seq_data
hostap: switch to proc_create_{seq,single}_data
bonding: switch to proc_create_seq_data
rtc/proc: switch to proc_create_single_data
drbd: switch to proc_create_single
resource: switch to proc_create_seq_data
staging/rtl8192u: simplify procfs code
jfs: simplify procfs code
...
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Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_seq where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.
All trivial callers converted over.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Completes the support and fixes a regression introduced in
version 20180209.
The regression caused package objects that were loaded by the Load and
loadTable operators. This created an error message like the following:
[ 0.251922] ACPI Error: No pointer back to namespace node in package
00000000fd2a44cd (20180313/dsargs-303)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199413
Fixes: 5a8361f7ecce (ACPICA: Integrate package handling with module-level code)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These are two watchdog-related fixes, fix for a backlight regression
from the 4.16 cycle that unfortunately was propagated to -stable and a
button module modification to prevent graphics driver modules from
failing to load due to unmet dependencies if ACPI is disabled from the
kernel command line.
Specifics:
- Change the ACPI subsystem initialization ordering to initialize the
WDAT watchodg before reserving PNP motherboard resources so as to
allow the watchdog to allocate its resources before the PNP code
gets to them and prevents it from working correctly (Mika
Westerberg).
- Add a quirk for Lenovo Z50-70 to use the iTCO watchdog instead of
the WDAT one which conflicts with the RTC on that platform (Mika
Westerberg).
- Avoid breaking backlight handling on Dell XPS 13 2013 model by
allowing laptops to use the ACPI backlight by default even if they
are Windows 8-ready in principle (Hans de Goede)"
* tag 'acpi-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / video: Only default only_lcd to true on Win8-ready _desktops_
ACPI / button: make module loadable when booted in non-ACPI mode
ACPI / watchdog: Prefer iTCO_wdt on Lenovo Z50-70
ACPI / scan: Initialize watchdog before PNP
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