Pull spi updates from Mark Brown:
"A fairly standard release for SPI with the exception of a change to
the API for specifying chip selects done in preparation for supporting
devices with more than one chip select, this required some mechanical
changes throughout the tree which have been cooking in -next happily
for a while.
There's also a new API to allow us to support TPM chips on half duplex
controllers.
Summary:
- Refactoring in preparation for supporting multiple chip selects for
a single device, needed by some flash devices, which required a
change in the SPI device API visible throughout the tree
- Support for hardware assisted interaction with SPI TPMs on half
duplex controllers, implemented on nVidia Tedra210 QuadSPI
- Optimisation for large transfers on fsl-cpm devices
- Cleanups around device property use which fix some sisues with
fwnode
- Use of both void remove() and devm_platform_.*ioremap_resource()
- Support for AMD Pensando Elba, Amlogic A1, Cadence device mode,
Intel MetorLake-S and StarFive J7110 QuadSPI"
* tag 'spi-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (185 commits)
spi: bcm63xx: use macro DEFINE_SIMPLE_DEV_PM_OPS
spi: tegra210-quad: Enable TPM wait polling
spi: Add TPM HW flow flag
spi: bcm63xx: remove PM_SLEEP based conditional compilation
spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS
spi: spi-cadence: Add support for Slave mode
spi: spi-cadence: Switch to spi_controller structure
spi: cadence-quadspi: fix suspend-resume implementations
spi: dw: Add support for AMD Pensando Elba SoC
spi: dw: Add AMD Pensando Elba SoC SPI Controller
spi: cadence-quadspi: Disable the SPI before reconfiguring
spi: cadence-quadspi: Update the read timeout based on the length
spi: spi-loopback-test: Add module param for iteration length
spi: add support for Amlogic A1 SPI Flash Controller
dt-bindings: spi: add Amlogic A1 SPI controller
spi: fsl-spi: No need to check transfer length versus word size
spi: fsl-spi: Change mspi_apply_cpu_mode_quirks() to void
spi: fsl-cpm: Use 16 bit mode for large transfers with even size
spi: fsl-spi: Re-organise transfer bits_per_word adaptation
spi: fsl-spi: Fix CPM/QE mode Litte Endian
...
Pull power management updates from Rafael Wysocki:
"These update several cpufreq drivers and the cpufreq core, add sysfs
interface for exposing the time really spent in the platform low-power
state during suspend-to-idle, update devfreq (core and drivers) and
the pm-graph suite of tools and clean up code.
Specifics:
- Fix the frequency unit in cpufreq_verify_current_freq checks()
Sanjay Chandrashekara)
- Make mode_state_machine in amd-pstate static (Tom Rix)
- Make the cpufreq core require drivers with target_index() to set
freq_table (Viresh Kumar)
- Fix typo in the ARM_BRCMSTB_AVS_CPUFREQ Kconfig entry (Jingyu Wang)
- Use of_property_read_bool() for boolean properties in the pmac32
cpufreq driver (Rob Herring)
- Make the cpufreq sysfs interface return proper error codes on
obviously invalid input (qinyu)
- Add guided autonomous mode support to the AMD P-state driver (Wyes
Karny)
- Make the Intel P-state driver enable HWP IO boost on all server
platforms (Srinivas Pandruvada)
- Add opp and bandwidth support to tegra194 cpufreq driver (Sumit
Gupta)
- Use of_property_present() for testing DT property presence (Rob
Herring)
- Remove MODULE_LICENSE in non-modules (Nick Alcock)
- Add SM7225 to cpufreq-dt-platdev blocklist (Luca Weiss)
- Optimizations and fixes for qcom-cpufreq-hw driver (Krzysztof
Kozlowski, Konrad Dybcio, and Bjorn Andersson)
- DT binding updates for qcom-cpufreq-hw driver (Konrad Dybcio and
Bartosz Golaszewski)
- Updates and fixes for mediatek driver (Jia-Wei Chang and
AngeloGioacchino Del Regno)
- Use of_property_present() for testing DT property presence in the
cpuidle code (Rob Herring)
- Drop unnecessary (void *) conversions from the PM core (Li zeming)
- Add sysfs files to represent time spent in a platform sleep state
during suspend-to-idle and make AMD and Intel PMC drivers use them
Mario Limonciello)
- Use of_property_present() for testing DT property presence (Rob
Herring)
- Add set_required_opps() callback to the 'struct opp_table', to make
the code paths cleaner (Viresh Kumar)
- Update the pm-graph siute of utilities to v5.11 with the following
changes:
* New script which allows users to install the latest pm-graph
from the upstream github repo.
* Update all the dmesg suspend/resume PM print formats to be able
to process recent timelines using dmesg only.
* Add ethtool output to the log for the system's ethernet device
if ethtool exists.
* Make the tool more robustly handle events where mangled dmesg
or ftrace outputs do not include all the requisite data.
- Make the sleepgraph utility recognize "CPU killed" messages (Xueqin
Luo)
- Remove unneeded SRCU selection in Kconfig because it's always set
from devfreq core (Paul E. McKenney)
- Drop of_match_ptr() macro from exynos-bus.c because this driver is
always using the DT table for driver probe (Krzysztof Kozlowski)
- Use the preferred of_property_present() instead of the low-level
of_get_property() on exynos-bus.c (Rob Herring)
- Use devm_platform_get_and_ioream_resource() in exyno-ppmu.c (Yang
Li)"
* tag 'pm-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits)
platform/x86/intel/pmc: core: Report duration of time in HW sleep state
platform/x86/intel/pmc: core: Always capture counters on suspend
platform/x86/amd: pmc: Report duration of time in hw sleep state
PM: Add sysfs files to represent time spent in hardware sleep state
cpufreq: use correct unit when verify cur freq
cpufreq: tegra194: add OPP support and set bandwidth
cpufreq: amd-pstate: Make varaiable mode_state_machine static
PM: core: Remove unnecessary (void *) conversions
cpufreq: drivers with target_index() must set freq_table
PM / devfreq: exynos-ppmu: Use devm_platform_get_and_ioremap_resource()
OPP: Move required opps configuration to specialized callback
OPP: Handle all genpd cases together in _set_required_opps()
cpufreq: qcom-cpufreq-hw: Revert adding cpufreq qos
dt-bindings: cpufreq: cpufreq-qcom-hw: Add QCM2290
dt-bindings: cpufreq: cpufreq-qcom-hw: Sanitize data per compatible
dt-bindings: cpufreq: cpufreq-qcom-hw: Allow just 1 frequency domain
cpufreq: Add SM7225 to cpufreq-dt-platdev blocklist
cpufreq: qcom-cpufreq-hw: fix double IO unmap and resource release on exit
cpufreq: mediatek: Raise proc and sram max voltage for MT7622/7623
cpufreq: mediatek: raise proc/sram max voltage for MT8516
...
Pull thermal control updates from Rafael Wysocki:
"These mostly continue to prepare the thermal control subsystem for
using unified representation of trip points, which includes cleanups,
code refactoring and similar and update several drivers (for other
reasons), which includes new hardware support.
Specifics:
- Add a thermal zone 'devdata' accessor and modify several drivers to
use it (Daniel Lezcano)
- Prevent drivers from using the 'device' internal thermal zone
structure field directly (Daniel Lezcano)
- Clean up the hwmon thermal driver (Daniel Lezcano)
- Add thermal zone id accessor and thermal zone type accessor and
prevent drivers from using thermal zone fields directly (Daniel
Lezcano)
- Clean up the acerhdf and tegra thermal drivers (Daniel Lezcano)
- Add lower bound check for sysfs input to the x86_pkg_temp_thermal
Intel thermal driver (Zhang Rui)
- Add more thermal zone device encapsulation: prevent setting
structure field directly, access the sensor device instead the
thermal zone's device for trace, relocate the traces in
drivers/thermal (Daniel Lezcano)
- Use the generic trip point for the i.MX and remove the
get_trip_temp ops (Daniel Lezcano)
- Use the devm_platform_ioremap_resource() in the Hisilicon driver
(Yang Li)
- Remove R-Car H3 ES1.* handling as public has only access to the ES2
version and the upstream support for the ES1 has been shutdown
(Wolfram Sang)
- Add a delay after initializing the bank in order to let the time to
the hardware to initialze itself before reading the temperature
(Amjad Ouled-Ameur)
- Add MT8365 support (Amjad Ouled-Ameur)
- Preparational cleanup and DT bindings for RK3588 support (Sebastian
Reichel)
- Add driver support for RK3588 (Finley Xiao)
- Use devm_reset_control_array_get_exclusive() for the Rockchip
driver (Ye Xingchen)
- Detect power gated thermal zones and return -EAGAIN when reading
the temperature (Mikko Perttunen)
- Remove thermal_bind_params structure as it is unused (Zhang Rui)
- Drop unneeded quotes in DT bindings allowing to run yamllint (Rob
Herring)
- Update the power allocator documentation according to the thermal
trace relocation (Lukas Bulwahn)
- Fix sensor 1 interrupt status bitmask for the Mediatek LVTS sensor
(Chen-Yu Tsai)
- Use the dev_err_probe() helper in the Amlogic driver (Ye Xingchen)
- Add AP domain support to LVTS thermal controllers for mt8195
(Balsam CHIHI)
- Remove buggy call to thermal_of_zone_unregister() (Daniel Lezcano)
- Make thermal_of_zone_[un]register() private to the thermal OF code
(Daniel Lezcano)
- Create a private copy of the thermal zone device parameters
structure when registering a thermal zone (Daniel Lezcano)
- Fix a kernel NULL pointer dereference in thermal_hwmon (Zhang Rui)
- Revert recent message adjustment in thermal_hwmon (Rafael Wysocki)
- Use of_property_present() for testing DT property presence in
thermal control code (Rob Herring)
- Clean up thermal_list_lock locking in the thermal core (Rafael
Wysocki)
- Add DLVR support for RFIM control in the int340x Intel thermal
driver (Srinivas Pandruvada)"
* tag 'thermal-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (55 commits)
thermal: intel: int340x: Add DLVR support for RFIM control
thermal/core: Alloc-copy-free the thermal zone parameters structure
thermal/of: Unexport unused OF functions
thermal/drivers/bcm2835: Remove buggy call to thermal_of_zone_unregister
thermal/drivers/mediatek/lvts_thermal: Add AP domain for mt8195
dt-bindings: thermal: mediatek: Add AP domain to LVTS thermal controllers for mt8195
thermal: amlogic: Use dev_err_probe()
thermal/drivers/mediatek/lvts_thermal: Fix sensor 1 interrupt status bitmask
MAINTAINERS: adjust entry in THERMAL/POWER_ALLOCATOR after header movement
dt-bindings: thermal: Drop unneeded quotes
thermal/core: Remove thermal_bind_params structure
thermal/drivers/tegra-bpmp: Handle offline zones
thermal/drivers/rockchip: use devm_reset_control_array_get_exclusive()
dt-bindings: rockchip-thermal: Support the RK3588 SoC compatible
thermal/drivers/rockchip: Support RK3588 SoC in the thermal driver
thermal/drivers/rockchip: Support dynamic sized sensor array
thermal/drivers/rockchip: Simplify channel id logic
thermal/drivers/rockchip: Use dev_err_probe
thermal/drivers/rockchip: Simplify clock logic
thermal/drivers/rockchip: Simplify getting match data
...
Pull x86 platform driver updates from Hans de Goede:
- AMD PMC and PMF drivers:
- Numerous bugfixes
- Intel Speed Select Technology (ISST):
- TPMI (Topology Aware Register and PM Capsule Interface) support
for ISST support on upcoming processor models
- Various other improvements / new hw support
- tools/intel-speed-select: TPMI support + other improvements
- Intel In Field Scan (IFS):
- Add Array Bist test support
- New drivers:
- intel_bytcrc_pwrsrc Crystal Cove PMIC pwrsrc / reset-reason driver
- lenovo-ymc Yoga Mode Control driver for reporting SW_TABLET_MODE
- msi-ec Driver for MSI laptop EC features like battery charging limits
- apple-gmux:
- Support for new MMIO based models (T2 Macs)
- Honor acpi_backlight= auto-detect-code + kernel cmdline option
to switch between gmux and apple_bl backlight drivers and remove
own custom handling for this
- x86-android-tablets: Refactor / cleanup + new hw support
- Miscellaneous other cleanups / fixes
* tag 'platform-drivers-x86-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (178 commits)
platform/x86: x86-android-tablets: Add accelerometer support for Yoga Tablet 2 1050/830 series
platform/x86: x86-android-tablets: Add "yogabook-touch-kbd-digitizer-switch" pdev for Lenovo Yoga Book
platform/x86: x86-android-tablets: Add Wacom digitizer info for Lenovo Yoga Book
platform/x86: x86-android-tablets: Update Yoga Book HiDeep touchscreen comment
platform/x86: thinkpad_acpi: Fix Embedded Controller access on X380 Yoga
platform/x86/intel/sdsi: Change mailbox timeout
platform/x86/intel/pmt: Ignore uninitialized entries
platform/x86: amd: pmc: provide user message where s0ix is not supported
platform/x86/amd: pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2()
mlxbf-bootctl: Add sysfs file for BlueField boot fifo
platform/x86: amd: pmc: Remove __maybe_unused from amd_pmc_suspend_handler()
platform/x86/intel/pmc/mtl: Put GNA/IPU/VPU devices in D3
platform/x86/amd: pmc: Move out of BIOS SMN pair for STB init
platform/x86/amd: pmc: Utilize SMN index 0 for driver probe
platform/x86/amd: pmc: Move idlemask check into `amd_pmc_idlemask_read`
platform/x86/amd: pmc: Don't dump data after resume from s0i3 on picasso
platform/x86/amd: pmc: Hide SMU version and program attributes for Picasso
platform/x86/amd: pmc: Don't try to read SMU version on Picasso
platform/x86/amd/pmf: Move out of BIOS SMN pair for driver probe
platform/x86: intel-uncore-freq: Add client processors
...
Pull chrome platform updates from Tzung-Bi Shih:
"Improvements:
- Replace fake flexible arrays with flexible-array member
Misc:
- Minor cleanups and fixes"
* tag 'tag-chrome-platform-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: wilco_ec: remove return value check of debugfs_create_dir()
platform/chrome: cros_ec_debugfs: fix kernel-doc warning
platform/chrome: cros_ec: Separate logic for getting panic info
platform/chrome: cros_typec_switch: Add missing fwnode_handle_put()
platform/chrome: cros_ec: remove unneeded label and if-condition
platform/chrome: Replace fake flexible arrays with flexible-array member
intel_pmc_core displays a warning when the module parameter
`warn_on_s0ix_failures` is set and a suspend didn't get to a HW sleep
state.
Report this to the standard kernel reporting infrastructure so that
userspace software can query after the suspend cycle is done.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Currently counters are only captured during suspend when the
warn_on_s0ix_failures module parameter is set.
In order to relay this counter information to the kernel reporting
infrastructure adjust it so that the counters are always captured.
warn_on_s0ix_failures will be utilized solely for messaging by
the driver instead.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
amd_pmc displays a warning when a suspend didn't get to the deepest
state and a dynamic debugging message with the duration if it did.
Rather than logging to dynamic debugging the duration spent in the
deepest state, report this to the standard kernel reporting
infrastructure so that userspace software can query after the
suspend cycle is done.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fundamentally semaphores are a counted primitive, but
DEFINE_SEMAPHORE() does not expose this and explicitly creates a
binary semaphore.
Change DEFINE_SEMAPHORE() to take a number argument and use that in the
few places that open-coded it using __SEMAPHORE_INITIALIZER().
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
[mcgrof: add some tribal knowledge about why some folks prefer
binary sempahores over mutexes]
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
On the X380 Yoga, the `ECRD` and `ECWR` ACPI objects cannot be used for
accessing the Embedded Controller: instead of a method that reads from
the EC's memory, `ECRD` is the name of a location in high memory. This
meant that trying to call them would fail with the following message:
ACPI: \_SB.PCI0.LPCB.EC.ECRD: 1 arguments were passed to a non-method
ACPI object (RegionField)
With this commit, it is now possible to access the EC and read
temperature and fan speed information. Note that while writes to the
HFSP register do go through (as indicated by subsequent reads showing
the new value), the fan does not actually change its speed.
Signed-off-by: Daniel Bertalan <dani@danielbertalan.dev>
Link: https://lore.kernel.org/r/20230414180034.63914-1-dani@danielbertalan.dev
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The current SMN index used for the driver probe seems to be meant
for the BIOS pair and there are potential concurrency problems that can
occur with an inopportune SMI.
It is been advised to use SMN_INDEX_0 instead of SMN_INDEX_6, which is
what amd_nb.c provides and this function has protections to ensure that
only one caller can use it at a time.
Fixes: 426c0ff27b ("platform/x86: amd-pmc: Add support for AMD Smart Trace Buffer")
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230409185348.556161-7-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The current SMN index used for the driver probe seems to be meant
for the BIOS pair and there are potential concurrency problems that can
occur with an inopportune SMI.
It is been advised to use SMN_INDEX_0 instead of SMN_INDEX_2, which is
what amd_nb.c provides and this function has protections to ensure that
only one caller can use it at a time.
Fixes: 156ec4731c ("platform/x86: amd-pmc: Add AMD platform support for S2Idle")
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230409185348.556161-6-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The version check requirement for idle mask support actually only
applies to RN/CZN/BRC platforms.
So far no issues have happened because the PMFW version string is
bigger on other supported systems. This can be reset for any new platform
so move the check to only RN/CZN/BRC case.
Fixes: f6045de1f5 ("platform/x86: amd-pmc: Export Idlemask values based on the APU")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230409185348.556161-5-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The current SMN index used for the driver probe seems to be meant
for the BIOS pair and there are potential concurrency problems that can
occur with an inopportune SMI.
It is been advised to use SMN_INDEX_0 instead of SMN_INDEX_2, which is
what amd_nb.c provides and this function has protections to ensure that
only one caller can use it at a time.
Fixes: da5ce22df5 ("platform/x86/amd/pmf: Add support for PMF core layer")
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230406164807.50969-4-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Pull x86 platform driver fixes from Hans de Goede:
- more think-lmi fixes
- one DMI quirk addition
* tag 'platform-drivers-x86-v6.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: thinkpad_acpi: Add missing T14s Gen1 type to s2idle quirk list
platform/x86: think-lmi: Clean up display of current_value on Thinkstation
platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
platform/x86: think-lmi: Fix memory leak when showing current settings
The Lenovo Yoga Book X90F/L is a x86 ACPI tablet which ships with Android
x86 as factory OS. Its DSDT contains a bunch of I2C devices which are not
actually there, causing various resource conflicts. Enumeration of these
is skipped through the acpi_quirk_skip_i2c_client_enumeration().
Add support for manually instantiating the I2C + other devices which are
actually present on this tablet by adding the necessary device info to
the x86-android-tablets module.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230401150737.597417-3-hdegoede@redhat.com
Various Lenovo models use a TI LP8557 LED backlight controller and
the necessary platform_data is the same for the different models.
Currently there are 2 identical copies and the upcoming support for
the Lenovo Yoga Book X90F/L would add a 3th identical copy.
Move to sharing the lp855x_platform_data between different models
to avoid this duplication.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230401150737.597417-2-hdegoede@redhat.com
Both the Lenovo Yoga Tablet 2 830 and 1050 models use an TI LP8557 LED
backlight controller. On the 1050 the LP8557's PWM input is connected to
the PMIC's PWM output and everything works fine with the defaults
programmed into the LP8557 by the BIOS.
But on the 830 the LP8557's PWM input is connected to a PWM output coming
from the LCD panel's controller. The Android code has a hack in the i915
driver to write the non-standard DSI reg 0x9f with the desired backlight
level to set the duty-cycle of the LCD's PWM output.
To avoid having to have a similar hack in the mainline kernel the LP8557
entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the
LP8557 to directly set the level, ignoring the PWM input.
So far we have only been instantiating the LP8557 i2c_client for direct
backlight control on the 830 model. But we want hide/disable the
intel_backlight interface on the 830 model to avoid having 2 backlight
interfaces for the same LCD panel.
And the 830 and 1050 share the same DMI strings. So this will hide the
intel_backlight interface on the 1050 model too.
To avoid this causing problems make the backlight handling consistent
between the 2 models and always directly use the LP8557.
This also simplifies the code.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230401150737.597417-1-hdegoede@redhat.com
This WMI driver for the tablet mode control switch for Lenovo Yoga
notebooks was originally written by Gergo Koteles. The mode is mapped to
a SW_TABLET_MODE switch capable input device.
Andrew followed the suggestions that were posted in reply to Gergo's RFC
patch, and on the v1 & v2 versions of this patch to follow-up and get it
merged.
Changes from Gergo's RFC:
- Refactored obtaining a reference to the EC ACPI device needed for the
quirk implementation as suggested by Hans de Goede
- Applied small fixes and switched to always registering handles with
the driver for automatic cleanup as suggested by Barnabás Pőcze.
- Merged the lenovo_ymc_trigger_ec function with the
ideapad_trigger_ymc_next_read function since it was no longer
external.
- Added the word "Tablet" to the driver description to hopefully make
it more clear.
- Fixed the LENOVO_YMC_QUERY_METHOD ID and the name string for the EC
APCI device trigged for the quirk
- Triggered the input event on probe so that the initial tablet mode
state when the driver is loaded is reported to userspace as suggested
by Armin Wolf.
- Restricted the permissions of the ec_trigger parameter as suggested
by Armin Wolf. Also updated the description.
We have tested this on the Yoga 7 14AIL7 for the non-quirk path and on
the Yoga 7 14ARB7 which has the firmware bug that requires triggering
the embedded controller to send the mode change events. This workaround
is also used by the Windows drivers.
According to reports at https://github.com/lukas-w/yoga-usage-mode,
which uses the same WMI devices, the following models should also work:
Yoga C940, Ideapad flex 14API, Yoga 9 14IAP7, Yoga 7 14ARB7, etc.
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Co-developed-by: Andrew Kallmeyer <kallmeyeras@gmail.com>
Signed-off-by: Andrew Kallmeyer <kallmeyeras@gmail.com>
Link: https://lore.kernel.org/r/20221004214332.35934-1-soyer@irl.hu/
Link: https://lore.kernel.org/r/20230310041726.217447-1-kallmeyeras@gmail.com/
Link: https://lore.kernel.org/r/20230323025200.5462-1-kallmeyeras@gmail.com/
Tested-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20230329014559.44494-3-kallmeyeras@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
We need the fixes in here for testing, as well as the driver core
changes for documentation updates to build on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull x86 platform driver fixes from Hans de Goede:
- Fix a regression in ideapad-laptop which caused the touchpad to stop
working after a suspend/resume on some models
- One other small fix and three hw-id additions
* tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: ideapad-laptop: Stop sending KEY_TOUCHPAD_TOGGLE
platform/x86: asus-nb-wmi: Add quirk_asus_tablet_mode to other ROG Flow X13 models
platform/x86: gigabyte-wmi: add support for X570S AORUS ELITE
platform/x86: gigabyte-wmi: add support for B650 AORUS ELITE AX
platform/x86/intel/pmc: Alder Lake PCH slp_s0_residency fix
