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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here is the big driver core update for 5.4-rc1.
There was a bit of a churn in here, with a number of core and OF
platform patches being added to the tree, and then after much
discussion and review and a day-long in-person meeting, they were
decided to be reverted and a new set of patches is currently being
reviewed on the mailing list.
Other than that churn, there are two "persistent" branches in here
that other trees will be pulling in as well during the merge window.
One branch to add support for drivers to have the driver core
automatically add sysfs attribute files when a driver is bound to a
device so that the driver doesn't have to manually do it (and then
clean it up, as it always gets it wrong).
There's another branch in here for generic lookup helpers for the
driver core that lots of busses are starting to use. That's the
majority of the non-driver-core changes in this patch series.
There's also some on-going debugfs file creation cleanup that has been
slowly happening over the past few releases, with the goal to
hopefully get that done sometime next year.
All of these have been in linux-next for a while now with no reported
issues"
[ Note that the above-mentioned generic lookup helpers branch was
already brought in by the LED merge (commit 4feaab05dc1e) that had
shared it.
Also note that that common branch introduced an i2c bug due to a bad
conversion, which got fixed here. - Linus ]
* tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (49 commits)
coccinelle: platform_get_irq: Fix parse error
driver-core: add include guard to linux/container.h
sysfs: add BIN_ATTR_WO() macro
driver core: platform: Export platform_get_irq_optional()
hwmon: pwm-fan: Use platform_get_irq_optional()
driver core: platform: Introduce platform_get_irq_optional()
Revert "driver core: Add support for linking devices during device addition"
Revert "driver core: Add edit_links() callback for drivers"
Revert "of/platform: Add functional dependency link from DT bindings"
Revert "driver core: Add sync_state driver/bus callback"
Revert "of/platform: Pause/resume sync state during init and of_platform_populate()"
Revert "of/platform: Create device links for all child-supplier depencencies"
Revert "of/platform: Don't create device links for default busses"
Revert "of/platform: Fix fn definitons for of_link_is_valid() and of_link_property()"
Revert "of/platform: Fix device_links_supplier_sync_state_resume() warning"
Revert "of/platform: Disable generic device linking code for PowerPC"
devcoredump: fix typo in comment
devcoredump: use memory_read_from_buffer
of/platform: Disable generic device linking code for PowerPC
device.h: Fix warnings for mismatched parameter names in comments
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We need the driver core fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Platform drivers now have the option to have the platform core create
and remove any needed sysfs attribute files. So take advantage of that
and do not register "by hand" a bunch of sysfs files.
Cc: Darren Hart <dvhart@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: platform-driver-x86@vger.kernel.org
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190731124349.4474-8-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"Improve software node support (Heikki Krogerus) and clean up two
assorted pieces of code (Andy Shevchenko, Geert Uytterhoeven)"
* tag 'devprop-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
software node: Initialize the return value in software_node_find_by_name()
software node: Initialize the return value in software_node_to_swnode()
ACPI / property: Fix acpi_graph_get_remote_endpoint() name in kerneldoc
device property: Remove duplicate test for NULL
platform/x86: intel_cht_int33fe: Use new API to gain access to the role switch
usb: roles: intel_xhci: Supplying software node for the role mux
software node: Add software_node_find_by_name()
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The driver for the Intel USB role mux now always supplies
software node for the role switch, so no longer checking
that, and never creating separate node for the role switch.
From now on using software_node_find_by_name() function to
get the handle to the USB role switch.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.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 power management updates from Rafael Wysocki:
"These include a rework of the main suspend-to-idle code flow (related
to the handling of spurious wakeups), a switch over of several users
of cpufreq notifiers to QoS-based limits, a new devfreq driver for
Tegra20, a new cpuidle driver and governor for virtualized guests, an
extension of the wakeup sources framework to expose wakeup sources as
device objects in sysfs, and more.
Specifics:
- Rework the main suspend-to-idle control flow to avoid repeating
"noirq" device resume and suspend operations in case of spurious
wakeups from the ACPI EC and decouple the ACPI EC wakeups support
from the LPS0 _DSM support (Rafael Wysocki).
- Extend the wakeup sources framework to expose wakeup sources as
device objects in sysfs (Tri Vo, Stephen Boyd).
- Expose system suspend statistics in sysfs (Kalesh Singh).
- Introduce a new haltpoll cpuidle driver and a new matching governor
for virtualized guests wanting to do guest-side polling in the idle
loop (Marcelo Tosatti, Joao Martins, Wanpeng Li, Stephen Rothwell).
- Fix the menu and teo cpuidle governors to allow the scheduler tick
to be stopped if PM QoS is used to limit the CPU idle state exit
latency in some cases (Rafael Wysocki).
- Increase the resolution of the play_idle() argument to microseconds
for more fine-grained injection of CPU idle cycles (Daniel
Lezcano).
- Switch over some users of cpuidle notifiers to the new QoS-based
frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
policy notifier events (Viresh Kumar).
- Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).
- Add support for MT8183 and MT8516 to the mediatek cpufreq driver
(Andrew-sh.Cheng, Fabien Parent).
- Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
Huang).
- Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).
- Update the qcom cpufreq driver (among other things, to make it
easier to extend and to use kryo cpufreq for other nvmem-based
SoCs) and add qcs404 support to it (Niklas Cassel, Douglas
RAILLARD, Sibi Sankar, Sricharan R).
- Fix assorted issues and make assorted minor improvements in the
cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
Gustavo Silva, Hariprasad Kelam).
- Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
Bergmann).
- Add new Exynos PPMU events to devfreq events and extend that
mechanism (Lukasz Luba).
- Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).
- Improve devfreq documentation and governor code, fix spelling typos
in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard Crestez,
MyungJoo Ham, Gaël PORTAY).
- Add regulators enable and disable to the OPP (operating performance
points) framework (Kamil Konieczny).
- Update the OPP framework to support multiple opp-suspend properties
(Anson Huang).
- Fix assorted issues and make assorted minor improvements in the OPP
code (Niklas Cassel, Viresh Kumar, Yue Hu).
- Clean up the generic power domains (genpd) framework (Ulf Hansson).
- Clean up assorted pieces of power management code and documentation
(Akinobu Mita, Amit Kucheria, Chuhong Yuan).
- Update the pm-graph tool to version 5.5 including multiple fixes
and improvements (Todd Brandt).
- Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
Sébastien Szymanski)"
* tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (126 commits)
cpuidle-haltpoll: Enable kvm guest polling when dedicated physical CPUs are available
cpuidle-haltpoll: do not set an owner to allow modunload
cpuidle-haltpoll: return -ENODEV on modinit failure
cpuidle-haltpoll: set haltpoll as preferred governor
cpuidle: allow governor switch on cpuidle_register_driver()
PM: runtime: Documentation: add runtime_status ABI document
pm-graph: make setVal unbuffered again for python2 and python3
powercap: idle_inject: Use higher resolution for idle injection
cpuidle: play_idle: Increase the resolution to usec
cpuidle-haltpoll: vcpu hotplug support
cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
cpufreq: qcom: Add support for qcs404 on nvmem driver
cpufreq: qcom: Refactor the driver to make it easier to extend
cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain
Documentation: cpufreq: Update policy notifier documentation
cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events
PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state()
PM / Domains: Simplify genpd_lookup_dev()
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* pm-sleep: (29 commits)
ACPI: PM: s2idle: Always set up EC GPE for system wakeup
ACPI: PM: s2idle: Avoid rearming SCI for wakeup unnecessarily
PM / wakeup: Unexport wakeup_source_sysfs_{add,remove}()
PM / wakeup: Register wakeup class kobj after device is added
PM / wakeup: Fix sysfs registration error path
PM / wakeup: Show wakeup sources stats in sysfs
PM / wakeup: Use wakeup_source_register() in wakelock.c
PM / wakeup: Drop wakeup_source_init(), wakeup_source_prepare()
PM: sleep: Replace strncmp() with str_has_prefix()
PM: suspend: Fix platform_suspend_prepare_noirq()
intel-hid: Disable button array during suspend-to-idle
intel-hid: intel-vbtn: Avoid leaking wakeup_mode set
ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devices
ACPI: EC: PM: Make acpi_ec_dispatch_gpe() print debug message
ACPI: EC: PM: Consolidate some code depending on PM_SLEEP
ACPI: PM: s2idle: Eliminate acpi_sleep_no_ec_events()
ACPI: PM: s2idle: Switch EC over to polling during "noirq" suspend
ACPI: PM: s2idle: Add acpi.sleep_no_lps0 module parameter
ACPI: PM: s2idle: Rearrange lps0_device_attach()
PM/sleep: Expose suspend stats in sysfs
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* pm-s2idle-rework: (21 commits)
ACPI: PM: s2idle: Always set up EC GPE for system wakeup
ACPI: PM: s2idle: Avoid rearming SCI for wakeup unnecessarily
PM: suspend: Fix platform_suspend_prepare_noirq()
intel-hid: Disable button array during suspend-to-idle
intel-hid: intel-vbtn: Avoid leaking wakeup_mode set
ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devices
ACPI: EC: PM: Make acpi_ec_dispatch_gpe() print debug message
ACPI: EC: PM: Consolidate some code depending on PM_SLEEP
ACPI: PM: s2idle: Eliminate acpi_sleep_no_ec_events()
ACPI: PM: s2idle: Switch EC over to polling during "noirq" suspend
ACPI: PM: s2idle: Add acpi.sleep_no_lps0 module parameter
ACPI: PM: s2idle: Rearrange lps0_device_attach()
ACPI: PM: Set up EC GPE for system wakeup from drivers that need it
PM: sleep: Drop dpm_noirq_begin() and dpm_noirq_end()
PM: sleep: Integrate suspend-to-idle with generig suspend flow
PM: sleep: Simplify suspend-to-idle control flow
ACPI: PM: Set s2idle_wakeup earlier and clear it later
PM: sleep: Fix possible overflow in pm_system_cancel_wakeup()
ACPI: EC: Return bool from acpi_ec_dispatch_gpe()
ACPICA: Return u32 from acpi_dispatch_gpe()
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Commit 10a08fd65ec1 ("ACPI: PM: Set up EC GPE for system wakeup from
drivers that need it") assumed that the EC GPE would only need to be
set up for system wakeup if either the intel-hid or the intel-vbtn
driver was in use, but that turns out to be incorrect. In particular,
on ASUS Zenbook UX430UNR/i7-8550U, if the EC GPE is not enabled while
suspended, the system cannot be woken up by opening the lid or
pressing a key, and that machine doesn't use any of the drivers
mentioned above.
For this reason, always set up the EC GPE for system wakeup from
suspend-to-idle by setting and clearing its wake mask in the ACPI
suspend-to-idle callbacks.
Fixes: 10a08fd65ec1 ("ACPI: PM: Set up EC GPE for system wakeup from drivers that need it")
Reported-by: Kristian Klausen <kristian@klausen.dk>
Tested-by: Kristian Klausen <kristian@klausen.dk>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Notice that intel_button_array_enable() never disables the power
button which is the only one needed to wake up the system from
suspend-to-idle, so it can be safely called during suspend-to-idle
as well as during "regular" system suspend, and rearrange the
code in the driver's "suspend" and "resume" callbacks accordingly.
While at it, use pm_suspend_no_platform() to check if the current
suspend-resume cycle is suspend-to-idle, as that is the only
case when the device should be enabled while suspended.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Both intel-hid and intel-vbtn set a wakeup_mode flag causing them
to behave in a special way during system suspend and while suspended
in their "prepare" PM callbacks and clear it in their "resume" PM
callbacks. That may cause the wakeup_mode flag to remain set after
a system suspend failure (if some other driver's "suspend" callback
returns an error before the "suspend" callback of either intel-hid
or intel-vbtn is invoked).
After commit 10a08fd65ec1 ("ACPI: PM: Set up EC GPE for system wakeup
from drivers that need it") that also affects the "wakeup mask" bit
of the EC GPE, which may not be cleared after a failing system
suspend.
Fix this issue by adding "complete" PM callbacks to intel-hid and
intel-vbtn to clear the wakeup_mode flag and the "wakeup mask" bit
of the EC GPE if they have not been cleared earlier.
Fixes: 10a08fd65ec1 ("ACPI: PM: Set up EC GPE for system wakeup from drivers that need it")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The EC GPE needs to be set up for system wakeup only if there is a
driver depending on it, either intel-hid or intel-vbtn, bound to a
button device that is expected to wake up the system from sleep (such
as the power button on some Dell systems, like the XPS13 9360). It
doesn't need to be set up for waking up the system from sleep in any
other cases and whether or not it is expected to wake up the system
from sleep doesn't depend on whether or not the LPS0 device is
present in the ACPI namespace.
For this reason, rearrange the ACPI suspend-to-idle code to make the
drivers depending on the EC GPE wakeup take care of setting it up and
decouple that from the LPS0 device handling.
While at it, make intel-hid and intel-vbtn prepare for system wakeup
only if they are allowed to wake up the system from sleep by user
space (via sysfs).
[Note that acpi_ec_mark_gpe_for_wake() and acpi_ec_set_gpe_wake_mask()
are there to prevent the EC GPE from being disabled by the
acpi_enable_all_wakeup_gpes() call in acpi_s2idle_prepare(), so on
systems with either intel-hid or intel-vbtn this change doesn't
affect any interactions with the hardware or platform firmware.]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform-drivers updates from Andy Shevchenko:
- ASUS WMI driver got a couple of updates, i.e. support of FAN is fixed
for recent products and the charge threshold support has been added
- Two uknown key events for Dell laptops are being ignored now to avoid
spamming users with harmless messages
- HP ZBook 17 G5 and ASUS Zenbook UX430UNR got accelerometer support.
- Intel CherryTrail platforms had a regression with wake up. Now it's
fixed
- Intel PMC driver got fixed in order to work nicely in Xen
environment
- Intel Speed Select driver provides bucket vs core count relationship.
Besides that the tools has been updated for better output
- The PrivacyGuard is enabled on Lenovo ThinkPad laptops
- Three tablets - Trekstor Primebook C11B 2-in-1, Irbis TW90 and Chuwi
Surbook Mini - got touchscreen support
* tag 'platform-drivers-x86-v5.4-1' of git://git.infradead.org/linux-platform-drivers-x86: (53 commits)
MAINTAINERS: Switch PDx86 subsystem status to Odd Fixes
platform/x86: asus-wmi: Refactor charge threshold to use the battery hooking API
platform/x86: asus-wmi: Rename CHARGE_THRESHOLD to RSOC
platform/x86: asus-wmi: Reorder ASUS_WMI_CHARGE_THRESHOLD
tools/power/x86/intel-speed-select: Display core count for bucket
platform/x86: ISST: Allow additional TRL MSRs
tools/power/x86/intel-speed-select: Fix memory leak
tools/power/x86/intel-speed-select: Output success/failed for command output
tools/power/x86/intel-speed-select: Output human readable CPU list
tools/power/x86/intel-speed-select: Change turbo ratio output to maximum turbo frequency
tools/power/x86/intel-speed-select: Switch output to MHz
tools/power/x86/intel-speed-select: Simplify output for turbo-freq and base-freq
tools/power/x86/intel-speed-select: Fix cpu-count output
tools/power/x86/intel-speed-select: Fix help option typo
tools/power/x86/intel-speed-select: Fix package typo
tools/power/x86/intel-speed-select: Fix a read overflow in isst_set_tdp_level_msr()
platform/x86: intel_int0002_vgpio: Use device_init_wakeup
platform/x86: intel_int0002_vgpio: Fix wakeups not working on Cherry Trail
platform/x86: compal-laptop: Initialize "value" in ec_read_u8()
platform/x86: touchscreen_dmi: Add info for the Trekstor Primebook C11B 2-in-1
...
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At the same time use the official naming for the knobs.
Tested on a Zenbook UX430UNR.
Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The device is officially called "Relative state of charge" (RSOC).
At the same time add the missing DEVID from the name.
Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Additional Turbo Ratio Limit (TRL) MSRs are required to get bucket vs core
count relationship. So add them to the list of allowed MSRs.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Use device_init_wakeup and pm_wakeup_hard_event instead of directly
calling pm_system_wakeup(). This is the preferred way to do this and
this will allow the user to disable wakeup through INT0002 events
through sysfs.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Commit 871f1f2bcb01 ("platform/x86: intel_int0002_vgpio: Only implement
irq_set_wake on Bay Trail") removed the irq_set_wake method from the
struct irq_chip used on Cherry Trail, but it did not set
IRQCHIP_SKIP_SET_WAKE causing kernel/irq/manage.c: set_irq_wake_real()
to return -ENXIO.
This causes the kernel to no longer see PME events reported through the
INT0002 device as wakeup events. Which e.g. breaks wakeup by the (USB)
keyboard on many Cherry Trail 2-in-1 devices.
Cc: stable@vger.kernel.org
Fixes: 871f1f2bcb01 ("platform/x86: intel_int0002_vgpio: Only implement irq_set_wake on Bay Trail")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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In function ec_read_u8(), variable "value" could be uninitialized
if ec_read() fails. However, "value" is returned directly and used
in its callers. This is potentially unsafe.
Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Add touchscreen info for the Trekstor Primebook C11B 2-in-1, note the C11B
used the same touchscreen as the regular C11, so we only add a new DMI
match.
Cc: Thomas Hiller <thomas.hiller@gmx.de>
Reported-and-tested-by: Thomas Hiller <thomas.hiller@gmx.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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This feature is found optionally in T480s, T490, T490s.
The feature is called lcdshadow and visible via
/proc/acpi/ibm/lcdshadow.
The ACPI methods \_SB.PCI0.LPCB.EC.HKEY.{GSSS,SSSS,TSSS,CSSS} are
available in these machines. They get, set, toggle or change the state
apparently.
The patch was tested on a 5.0 series kernel on a T480s.
Signed-off-by: Alexander Schremmer <alex@alexanderweb.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The SIMATIC IPC227E uses the PMC clock for on-board components and gets
stuck during boot if the clock is disabled. Therefore, add this device
to the critical systems list.
Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Prior to this commit, removing the intel_pmc_core_pltdrv module
would cause the following warning:
Device 'intel_pmc_core.0' does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.
WARNING: CPU: 0 PID: 2202 at drivers/base/core.c:1238 device_release+0x6f/0x80
This commit hence adds an empty release function for the driver.
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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On a Xen-based PVH virtual machine with more than 4 GiB of RAM,
intel_pmc_core fails initialization with the following warning message
from the kernel, indicating that the driver is attempting to ioremap
RAM:
ioremap on RAM at 0x00000000fe000000 - 0x00000000fe001fff
WARNING: CPU: 1 PID: 434 at arch/x86/mm/ioremap.c:186 __ioremap_caller.constprop.0+0x2aa/0x2c0
...
Call Trace:
? pmc_core_probe+0x87/0x2d0 [intel_pmc_core]
pmc_core_probe+0x87/0x2d0 [intel_pmc_core]
This issue appears to manifest itself because of the following fallback
mechanism in the driver:
if (lpit_read_residency_count_address(&slp_s0_addr))
pmcdev->base_addr = PMC_BASE_ADDR_DEFAULT;
The validity of address PMC_BASE_ADDR_DEFAULT (i.e., 0xFE000000) is not
verified by the driver, which is what this patch introduces. With this
patch, if address PMC_BASE_ADDR_DEFAULT is in RAM, then the driver will
not attempt to ioremap the aforementioned address.
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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This error handling is reversed so we return early.
Fixes: 84d8e80b0a36 ("platform/x86: asus-wmi: Refactor charge_threshold_store()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Remove blank lines where they are not needed.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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We have extra indentation level where it can be avoided by changing conditional
to the inverted one.
Do it here for three such locations in the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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There is no need to open code clamp_val() macro implementation.
Replace the corresponding lines with direct call to clamp_val().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The use of sscanf() is an overkill here. Moreover, there is no need to check
for count to be 0, since it's guaranteed by sysfs not to be.
Taking above into account, replace sscanf() with kstrtoint() calls.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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There are few issues with the current code:
- the error code from kstrtouint() is shadowed
- the error code from asus_wmi_set_devstate() is ignored
- the extra check against 0 for count (this is guaranteed by sysfs)
Fix these issues by doing a slight refactoring of charge_threshold_store().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Most newer ASUS laptops supports limiting the battery charge level, which
help prolonging the battery life.
Tested on a Zenbook UX430UNR.
Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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This patch adds support for ALS on the Zenbook UX430UNR to the asus_nb_wmi
driver.
Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Add touchscreen info for the Irbis TW90 tablet.
Reported-by: russianneuromancer@ya.ru
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Add touchscreen platform data for the Chuwi Surbook Mini tablet.
Signed-off-by: Giang Le <ohaibuzzle@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
// <smpl>
@@
expression ret;
struct platform_device *E;
@@
ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);
if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>
While we're here, remove braces on if statements that only have one
statement (manually).
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Darren Hart (VMware)" <dvhart@infradead.org>
Cc: Roman Kiryanov <rkir@google.com>
Cc: Vadim Pasternak <vadimp@mellanox.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
// <smpl>
@@
expression ret;
struct platform_device *E;
@@
ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);
if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>
While we're here, remove braces on if statements that only have one
statement (manually).
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Darren Hart (VMware)" <dvhart@infradead.org>
Cc: Roman Kiryanov <rkir@google.com>
Cc: Vadim Pasternak <vadimp@mellanox.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
// <smpl>
@@
expression ret;
struct platform_device *E;
@@
ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);
if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>
While we're here, remove braces on if statements that only have one
statement (manually).
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Darren Hart (VMware)" <dvhart@infradead.org>
Cc: Roman Kiryanov <rkir@google.com>
Cc: Vadim Pasternak <vadimp@mellanox.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
// <smpl>
@@
expression ret;
struct platform_device *E;
@@
ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);
if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>
While we're here, remove braces on if statements that only have one
statement (manually).
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Darren Hart (VMware)" <dvhart@infradead.org>
Cc: Roman Kiryanov <rkir@google.com>
Cc: Vadim Pasternak <vadimp@mellanox.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Previously, asus-wmi was using the AGFN interface and FAN_CTRL device
for CPU fan control. However, this code has been found to be not fully
working on some recent products, and having checked the spec, these
interfaces are marked as being removed from future products currently
in development.
The replacement appears to be the CPU_FAN device, added in spec version
8.3 (March 2014) and present on many modern Asus laptops.
Add support for this device, and use it whenever it is detected.
The older approach based on AGFN and FAN_CTRL is used as a fallback
on products that do not have such device.
Other than switching between automatic and full speed, there is
no fan speed control through this new interface.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Factor out the WLAN LED and lightbar LED presence checks into a
helper function, which will also be used by the upcoming CPU fan device
support.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The asus-wmi driver currently uses the "AGFN" interface and
the FAN_CTRL device for fan control. According to the spec, this
interface is very dated and marked as pending removal from products
currently in development.
Clean up the way that the AGFN fan is detected and handled, also
preparing the driver for the introduction of an alternate fan
control method needed to support recent Asus products.
Not anticipating further development of this interface, simplify
the code by dropping any notion of being able to control multiple
AGFN fans (this was already limited to just a single fan through only
exposing a single fan in sysfs).
Check for the presence of AGFN fans at probe time, simplifying the code
flow in asus_hwmon_sysfs_is_visible().
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The APU3+ boards have two SIM sockets, while only one of them
can be routed to the mpcie slots at a time. Selection is done
via simswap gpio.
We currently don't have a fitting subsystem for those cases yet,
so just wire it up to a LED for the time being. While this isn't
really semantically correct, it's a good compromise.
Signed-off-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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On APUx we have also mpcie2/mpcie3 reset pins. To make it possible to reset
the ports from the userspace, add the definition to this platform
device. The gpio can then be exported by the legancy gpio subsystem to
toggle the mpcie reset pin.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Acked-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array.
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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These values have already been defined in platform/x86/dell-smbios.h
Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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There's a wmi event generated by dell-wmi when pressing keyboard backlight
toggle key:
[1224178.355650] dell_wmi: Unknown key with type 0x0011 and code 0x01e3 pressed
This event is for notification purposes, let's ignore it.
Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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There's a wmi event generated by dell-wmi when pressing keyboard backlight
toggle key:
[1224203.948894] dell_wmi: Unknown key with type 0x0011 and code 0x01e2 pressed
This event is for notification purposes, let's ignore it.
Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The acpi_dev_get_first_match_dev() helper will find and return
an ACPI device pointer of the first registered device in the system
by its HID.
Use it instead of open coded variant.
Cc: Chun-Yi Lee <jlee@suse.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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acpi_has_method() is unnecessary within __query_block() and should be
removed to avoid extra work.
wc_status is initialized to AE_ERROR before the acpi_has_method() call.
acpi_has_method() and acpi_execute_simple_method() failing due to the
method not existing will result in the same outcome from __query_block().
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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